UDQ Series www.murata-ps.com 420W Fully Regulated, Digitally Controlled, Advanced Bus Converter (ABC) Output (V) Current (A) Input (Vdc) 9 39 36-60 12 35 36-75 Typical unit FEATURES PRODUCT OVERVIEW Industry standard five pin Quarter-brick Murata Power Solutions is introducing the first in a series of digitally controlled DC-DC converters that are based on a 32-bit ARM processor. The UDQ series provides a fully regulated, digitally controlled DC output in a ¼-brick format that will support the Advanced Bus Converter (ABC) industry standard footprint for isolated board mounted power modules. The UDQ series supports advances in power conversion technology including a digital interface supporting the PMBus protocol for communications to power modules. The UDQ is an isolated, regulated, 420W-12Vout quarter brick that supports the TNV input voltage Optional digital PMBus interface High Efficiency Fast dynamic response ±1% Vout accuracy 2250Vdc input to output isolation voltage (Functional) Optional baseplate PMBus Rev 1.2 compliant Certified to UL/EN/IEC 60950-1, CAN/CSA-C22.2 No. 60950-1, 2nd Edition, safety approvals and EN55022/CISPR22 standards range of 36V–75V with a typical efficiency of 95.5%. The converter also offers high input to output isolation up to 2250 VDC as required for Power over Ethernet (PoE) applications. The UDQ series is suitable for applications covering MicroTCA, servers and storage applications, networking equipment, telecommunications equipment, Power over Ethernet (PoE), fan trays, wireless networks, wireless pre-amplifiers, and industrial and test equipment, along with other applications requiring a regulated 12V. Power Management (PMBus Option) Applications Configurable soft-start/stop Distributed power architectures Precision delay and ramp-up Intermediate bus voltage applications Voltage sequencing and margining Servers and storage applications Voltage/Current/temp monitoring Network equipment Configurable output voltage Power good For full details go to www.murata-ps.com/rohs PM www.murata-ps.com/support MDC_UDQ-Series.B05 Page 1 of 24 UDQ Series 420W Fully Regulated, Digitally Controlled, Advanced Bus Converter (ABC) ORDERING GUIDE Root Model Input (Volts) Output (Volts) Current (Amps) Power (Watts) UDQ2100/100 UDQ2204/001 36-60 9 39 351 36-75 12 35 420 The UDQ2100/100 is assembled with components and materials designed to withstand lead-free thermal paste-in-hole process (PIH). Dry pack packaging is also included as shown on page 17. PART NUMBER EXPLANATION: UDQ0004/001 (UDQn1n2n3n4/n5n6n7) U = Unipolar DQ = Digital Quarter brick PRODUCT NUMBER UDQ Mechanical Pin Option Mechanical option Hardware Option Configuration file Option Designation n1 n2 n3 n4 n5 n6 n7 n1 X n2 n3 n4 x x x / / / / / n5 n6 n7 x x x Description 0 = Standard Pin Length 5.33mm (0.210") 1 = Surfact mount option 2 = Lead length 3.69mm / Cut (0.145") 3 = Lead Length 4.57mm / Cut (0.180") 4 = Lead Length 2.79mm / Cut (0.110") 0 = Open frame 1 = Baseplate 2 = Baseplate with GND-pin 00 = 36-60 Vin, 4-9.9 Vout adjusted, with digital interface 04 = 36-75 Vin, 4-13.2 Vout adjusted, with digital interface 001 = 12 V Standard configuration for 36-75 Vin, n3n4 = 04 100 = 9V standard configuration for 36-60 Vin, high capacitive load xxx = Application Specific Configuration www.murata-ps.com/support MDC_UDQ-Series.B05 Page 2 of 24 UDQ Series 420W Fully Regulated, Digitally Controlled, Advanced Bus Converter (ABC) FUNCTIONAL SPECIFICATIONS Conditions ➁ ABSOLUTE MAXIMUM RATINGS Minimum Typical/Nominal Maximum Units Full power operation Vdc 80, 65 ➀ Operating or non-operating, Input Voltage, Transient Vdc 100, 80 ➀ 100 mS max. duration Isolation Voltage Input to output, with and without baseplate 2250 Vdc Input Reverse Polarity None, install external fuse None Vdc On/Off Remote Control Power on or off, referred to -Vin -0.3 18 Vdc Storage Temperature Range Vin = Zero (no power) -55 125 °C Operating Temperature See derating curves -40 85 °C Absolute maximums are stress ratings. Exposure of devices to greater than any of these conditions may adversely affect long-term reliability. Proper operation under conditions other than those listed in the Performance/Functional Specifications Table is not implied or recommended. Input Voltage, Continuous DIGITAL INTERFACE SPECIFICATIONS (PMBus MONITORING) Logic Input/Output specs. Logic Input low (VIL) Logic input high (VIH) Logic output low (VOL) Logic output high (VOH) Bus free time T (BUF) PMBus monitoring accuracy VIN_READ VOUT_READ IOUT_READ IOUT_READ TEMP_READ Fault Protection Specifications Input Under Voltage Lockout, UVLV (Output Voltage) Over/Under Voltage protection, OVP/UVP Over Current Protection, OCP Over Temperature Protection, OTP CTRL, SAO, SA1, PG, SCL, SDA CTRL, PG, SALERT, SCL, SDA, IoL = 6mA CTRL, PG, SALERT, SCL, SDA, IoH = -6mA 1.1 ➂ 2.7 1.3 Input Voltage Output Voltage Output Current (50-100% of max Io) Output Current (10% of max Io) Temperature -2 -1 -6 -0.6 -5 Factory default Setpoint accuracy Hysteresis (factory default) Hysteresis (Configurable via PMBus of theshold range) ➁ Delay VOUT_UV_FAULT_LIMIT (factory default) VOUT_UV_FAULT_LIMIT (Configurable via PMBus,) ➁ VOUT_OV_FAULT_LIMIT (factory default) VOUT_OV_FAULT_LIMIT (Configurable via PMBus) ➁ Fault response time Setpoint accuracy (Io) IOUT_OC_FAULT_LIMIT (factory default) IOUT_OC_FAULT_LIMIT (Configurable via PMBus) ➁ Fault response time OTP_FAULT_LIMIT (factory default) OTP_FAULT_LIMIT (Configurable via PMBus) ➁ OTP hysteresis (factory default) OTP hysteresis (Configurable via PMBus) ➁ Fault response time 0.25 V V V V μS 2 1 6 0.6 5 % % % A °C 2 2 V % V 300 0 μS V 2.1 ±0.2 ±0.1 ±0.15 ±3.5 33 -2 0 V 0 16 15.6 Vout 16 200 -6 6 41 0 100 200 125 -50 125 10 0 125 300 V V V μS % A A μS °C °C °C °C μS Notes ➀ For UDQ2100/100 model. ➁ Typical at TA = +25°C under nominal line voltage and full-load conditions. All models are specified with an external 330μF external input capacitor and 3.5mF || 10μF || 1μF capacitors across their output pins. ➂ PMBus timing parameters according to PMBus spec. www.murata-ps.com/support MDC_UDQ-Series.B05 Page 3 of 24 UDQ Series 420W Fully Regulated, Digitally Controlled, Advanced Bus Converter (ABC) FUNCTIONAL SPECIFICATIONS, UDQ2100/100 (9VOUT, 39A, 351W) Conditions ➂ INPUT Operating voltage range Recommended External Fuse Start-up threshold Undervoltage shutdown Turn-On/Turn-Off Hysteresis Input current Full Load Conditions Low Line input current Inrush Transient Short Circuit input current No Load input current Shut-Down input currrent(Off, UV, OT) Pre-biased startup Fast blow Rising input voltage Falling input voltage Minimum Typical/Nominal Maximum Units 36 48 34 32 1 35 33 2 60 20 36 34 Vdc A Vdc Vdc Vdc 7.738 10.484 0.015 0.05 50 20 Monotonic 7.89 10.692 0.1 150 50 A A A2-Sec. A mA mA 140 147 KHz 24 30 mS 12 50 ±200 15 100 mS μSec mV Vin = nominal Vin = minimum Vin = 48V. Iout = minimum, unit=ON External output voltage < Vset DYNAMIC CHARACTERISTICS Fixed Switching Frequency Startup Time Ramp-up time Dynamic Load Response Dynamic Load Peak Deviation 133 From Vin connection to 90% Vo 10-100% of max Io From 10-90% of Vo (10-100% of max Io 50-75-50% load step to 1% error band same as above GENERAL and SAFETY Efficiency Isolation Isolation Voltage Isolation Voltage, input to baseplate Isolation Voltage, output to baseplate Insulation Safety Rating Isolation Resistance Isolation Capacitance Safety Calculated MTBF Vin=48V, half load Vin=48V, full load Input to output, with and without baseplate With baseplate With baseplate Certified to UL-60950-1, CSA-C22.2 No.609501, IEC/EN60950-1, 2nd edition Per Telcordia SR-332, issue 1, class 3, ground fixed, Tcase=+25°C 94.9 93.5 95.9 94.5 % % 1500 750 750 functional 100 2200 Vdc Vdc Vdc MΩ pF Yes TBD Hours x 103 www.murata-ps.com/support MDC_UDQ-Series.B05 Page 4 of 24 UDQ Series 420W Fully Regulated, Digitally Controlled, Advanced Bus Converter (ABC) FUNCTIONAL SPECIFICATIONS, UDQ2100/100 (9VOUT, 39A, 351W) (CONT.) Conditions ➀ OUTPUT Total Output Power Voltage Setting Accuracy Over-Voltage Protection Output Voltage Range Current Output Current Range Minimum Load Current Limit Inception Short Circuit Short Circuit Current Short Circuit Duration (remove short for recovery) Short circuit protection method Regulation Line Regulation Load Regulation Ripple and Noise Temperature Coefficient Maximum Output Capacitance Minimum Typical/Nominal Maximum Units 0 351 354.12 W 8.92 9 11.7 9.08 11.8 9.9 Vdc Vdc Vdc 39 No minimum load 44 39 A 47 A Hiccup technique, autorecovery within 1% of Vout 2 3 A Output shorted to ground, no damage Continuous Hiccup current limiting Non-latching ±0.133 ±0.128 % % At 100% load, no trim Magnetic Feedback User-adjustable (see operating information) 4 0 90% of Vnom., after warmup 41 Vin=min. to max., Vout=nom., full load Iout=min. to max., Vin=nom. 5 Hz-20 MHz BW, Cout=1μF MLCC paralleled with 10μF At all outputs 50 2.2 110 mV pk-pk 0.02 3.9 6 % of Vnom./°C mF 125 85 125 128 °C °C °C ENVIRONMENTAL Operating Ambient Temperature Range Storage Temperature Thermal Protection/Shutdown Electromagnetic Interference Conducted, EN55022/CISPR22 RoHS rating With derating Vin = Zero (no power) Measured at hotspot External filter is required External filter necessary -40 -55 122 B RoHS-6 Class Notes ➀ Typical at TA = +25°C under nominal line voltage and full-load conditions. All models are specified with an external 300μF external input capacitor and 3.5mF || 10μF || 1μF capacitors across their output pins. ➁ PMBus timing parameters according to PMBus spec. www.murata-ps.com/support MDC_UDQ-Series.B05 Page 5 of 24 UDQ Series 420W Fully Regulated, Digitally Controlled, Advanced Bus Converter (ABC) PERFORMANCE DATA, UDQ2100/100 Efficiency vs. Line Voltage and Load Current @ +25°C Power Dissipation vs. Load Current @ +25°C 98 30 25 94 Power Dissipation (Watts) Efficiency (%) 96 VIN = 36V VIN = 48V VIN = 60V 20 15 10 92 VIN = 36V VIN = 48V VIN = 60V 5 90 4.0 4.0 7.9 11.8 15.7 19.6 23.4 27.3 31.2 35.1 7.9 11.8 15.7 38.9 19.6 23.4 27.3 31. 35.1 38.9 Output Load Curre nt (Amps) Load Curre nt (Amps) With Baseplate Without Baseplate Maximum Current Temperature Derating at sea level Vin = 36V (air flow from Pin 1 to Pin 4 on PCB) Maximum Current Temperature Derating at sea level Vin = 36V (air flow from Pin 1 to Pin 4 on PCB) 40 38 Output Current (Amps) Output Current (Amps) 36 34 32 30 0.5 m/s (100 LFM) 1.0 m/s (200 LFM) 1.5 m/s (300 LFM) 2.0 m/s (400 LFM) 28 26 24 22 30 35 40 45 50 55 60 65 70 75 80 36 35 34 33 32 31 30 29 28 27 26 25 24 23 22 21 20 19 18 Natural Convection 0.5 m/s (100 LFM) 1.0 m/s (200 LFM) 1.5 m/s (300 LFM) 2.0 m/s (400 LFM) 30 85 35 40 45 50 55 60 65 70 75 80 85 80 85 Ambient Temperature (°C) Ambient Temperature (°C) Maximum Current Temperature Derating at sea level Vin = 48V (air flow from Pin 1 to Pin 4 on PCB) Maximum Current Temperature Derating at sea level Vin = 48V (air flow from Pin 1 to Pin 4 on PCB) 40 40 38 38 36 36 Output Current (Amps) Output Current (Amps) 34 34 32 30 0.5 m/s (100 LFM) 1.0 m/s (200 LFM) 1.5 m/s (300 LFM) 2.0 m/s (400 LFM) 28 26 32 30 28 26 Natural Convection 0.5 m/s (100 LFM) 1.0 m/s (200 LFM) 1.5 m/s (300 LFM) 2.0 m/s (400 LFM) 24 22 24 20 18 22 30 35 40 45 50 55 60 65 Ambient Temperature (°C) 70 75 80 85 30 35 40 45 50 55 60 65 70 75 Ambient Temperature (°C) www.murata-ps.com/support MDC_UDQ-Series.B05 Page 6 of 24 UDQ Series 420W Fully Regulated, Digitally Controlled, Advanced Bus Converter (ABC) PERFORMANCE DATA, UDQ2100/100 With Baseplate Without Baseplate Maximum Current Temperature Derating at sea level Vin = 53V (air flow from Pin 1 to Pin 4 on PCB) Maximum Current Temperature Derating at sea level Vin = 53V (air flow from Pin 1 to Pin 4 on PCB) 40 40 38 38 36 36 Output Current (Amps) Output Current (Amps) 34 34 32 30 0.5 m/s (100 LFM) 1.0 m/s (200 LFM) 1.5 m/s (300 LFM) 2.0 m/s (400 LFM) 28 26 32 30 28 26 Natural Convection 0.5 m/s (100 LFM) 1.0 m/s (200 LFM) 1.5 m/s (300 LFM) 2.0 m/s (400 LFM) 24 22 24 20 18 22 30 35 40 45 50 55 60 65 70 75 80 30 85 35 40 45 Ambient Temperature (°C) 50 55 60 65 70 75 80 85 80 85 Ambient Temperature (°C) Maximum Current Temperature Derating at sea level Vin = 60V (air flow from Pin 1 to Pin 4 on PCB) Maximum Current Temperature Derating at sea level Vin = 60V (air flow from Pin 1 to Pin 4 on PCB) 40 40 38 38 36 36 Output Current (Amps) Output Current (Amps) 34 34 32 30 0.5 m/s (100 LFM) 1.0 m/s (200 LFM) 1.5 m/s (300 LFM) 2.0 m/s (400 LFM) 28 26 32 30 28 26 Natural Convection 0.5 m/s (100 LFM) 1.0 m/s (200 LFM) 1.5 m/s (300 LFM) 2.0 m/s (400 LFM) 24 22 24 20 18 22 30 35 40 45 50 55 60 65 Ambient Temperature (°C) 70 75 80 85 30 35 40 45 50 55 60 65 70 75 Ambient Temperature (°C) www.murata-ps.com/support MDC_UDQ-Series.B05 Page 7 of 24 UDQ Series 420W Fully Regulated, Digitally Controlled, Advanced Bus Converter (ABC) PERFORMANCE DATA, UDQ2100/100 Start-up Delay (Vin = 48V, Vout = nom, Io = 39A, Cload = 6000μf, Ta = +25°C) Ch1 = Vout, Ch2 = Vin Enable Start-up Delay (Vin = 48V, Vout = nom, Io = 39A, Cload = 6000μf, Ta = +25°C) Ch1 = Vout, Ch2 = Enable. Step load Transient Response (Vin = 48V, Iout = 50-75-50% of Imax, Cload = 6000μf) Ch1 = Vout, Ch2 = Iout Output Ripple & Noise (Vin = 48V, Iout = 0A, Cload = 2200μf, Ta = 25°C, BW = 20Mhz) Output Ripple & Noise (Vin = 48V, Iout = 39A, Cload = 2200μf, Ta = 25°C, BW = 20Mhz) www.murata-ps.com/support MDC_UDQ-Series.B05 Page 8 of 24 UDQ Series 420W Fully Regulated, Digitally Controlled, Advanced Bus Converter (ABC) FUNCTIONAL SPECIFICATIONS, UDQ2204/001 (12VOUT, 35A, 420W) Conditions ➀ INPUT Operating voltage range Recommended External Fuse Start-up threshold Undervoltage shutdown Turn-On/Turn-Off Hysteresis Input current Full Load Conditions Low Line input current Inrush Transient Short Circuit input current No Load input current Shut-Down input currrent(Off, UV, OT) Pre-biased startup Back Ripple Current Fast blow Rising input voltage Falling input voltage Minimum Typical/Nominal Maximum Units 36 48 34 32 1 35 33 2 75 20 36 34 Vdc A Vdc Vdc Vdc 9.162 12.281 0.015 0.05 69 8.3 Monotonic 80 9.259 12.411 0.1 150 15 A A A2-Sec. A mA mA 100 mA 133 140 24 12 200 ±200 147 30 15 250 KHz mS mS μSec mV 95.4 94.5 96.4 95.5 % % 1500 750 750 100 2200 Vdc Vdc Vdc MΩ pF Vin = nominal Vin = minimum Vin = 48V. Iout = minimum, unit=ON External output voltage < Vset DYNAMIC CHARACTERISTICS Fixed Switching Frequency Startup Delay Ramp-up time Dynamic Load Response Dynamic Load Peak Deviation Vin On to 90% Vout regulated Remote On to 90% Vout regulated 50-75-50% load step to 1% of Vout same as above GENERAL and SAFETY Efficiency Isolation Isolation Voltage Isolation Voltage, input to baseplate Isolation Voltage, output to baseplate Isolation Resistance Isolation Capacitance Safety Calculated MTBF Vin=48V, half load Vin=48V, full load Input to output, with and without baseplate With baseplate With baseplate Certified to UL-60950-1, CSA-C22.2 No.609501, IEC/EN60950-1, 2nd edition Per Telcordia SR-332, issue 1, class 3, ground fixed, Tcase=+25°C Yes TBD Hours x 103 www.murata-ps.com/support MDC_UDQ-Series.B05 Page 9 of 24 UDQ Series 420W Fully Regulated, Digitally Controlled, Advanced Bus Converter (ABC) FUNCTIONAL SPECIFICATIONS, UDQ2204/001 (12VOUT, 35A, 420W) (CONT.) Conditions ➀ OUTPUT Total Output Power Voltage Setting Accuracy Output Voltage tolerance band Over-Voltage Protection Output Voltage Range Current Output Current Range Minimum Load Current Limit Inception Short Circuit Short Circuit Current Short Circuit Duration (remove short for recovery) Short circuit protection method Regulation Line Regulation Load Regulation Ripple and Noise Temperature Coefficient Recommended Capacitive Load Minimum Typical/Nominal Maximum Units 0 420 424.4 W 11.88 11.76 12 12.12 12.24 15.7 13.2 Vdc 35 No minimum load 41 35 A 44 A Hiccup technique, autorecovery within 1% of Vout 0.2 0.3 A Output shorted to ground, no damage Continuous Hiccup current limiting Non-latching ±0.23 ±0.166 % % 60 150 mV pk-pk 0.02 3.5 6 % of Vnom./°C mF 125 85 125 128 °C °C °C At 100% load, no trim 0-100% of max Io. Magnetic Feedback User-adjustable (see operating information) 4 0 90% of Vnom., after warmup Vin=min. to max., Vout=nom., full load Iout=min. to max., Vin=nom. 5 Hz-20 MHz BW, Cout=1μF MLCC paralleled with 10μF At all outputs Full resistive load, low ESR 37 0.1 15.6 12 Vdc Vdc ENVIRONMENTAL Operating Ambient Temperature Range Storage Temperature Thermal Protection/Shutdown Electromagnetic Interference Conducted, EN55022/CISPR22 RoHS rating With derating Vin = Zero (no power) Measured at hotspot External filter is required External filter necessary -40 -55 122 B RoHS-6 Class Notes ➀ Typical at TA = +25°C under nominal line voltage and full-load conditions. All models are specified with an external 330μF external input capacitor and 3.5mF || 10μF || 1μF capacitors across their output pins. ➁ PMBus timing parameters according to PMBus spec. www.murata-ps.com/support MDC_UDQ-Series.B05 Page 10 of 24 UDQ Series 420W Fully Regulated, Digitally Controlled, Advanced Bus Converter (ABC) PERFORMANCE DATA, UDQ2204/001 Efficiency vs. Line Voltage and Load Current @ +25°C Power Dissipation vs. Load Current @ +25°C 98 30 25 94 Power Dissipation (Watts) Efficiency (%) 96 VIN = 36V VIN = 48V VIN = 53V VIN = 60V VIN = 75V 92 20 15 VIN = 36V VIN = 48V VIN = 53V VIN = 60V VIN = 75V 10 5 0 90 3.6 3.6 7.1 10.6 14.1 17.6 21.1 24.6 28.1 31.6 7.1 10.6 14.1 35.1 17.6 21.1 24.6 28.1 31.6 35.1 Output Load Curre nt (Amps) 36 35 34 33 32 31 30 29 28 27 26 25 24 23 22 21 20 19 With Baseplate Without Baseplate Maximum Current Temperature Derating at sea level Vin = 36V (air flow from Pin 1 to Pin 4 on PCB) Maximum Current Temperature Derating at sea level Vin = 36V (air flow from Pin 1 to Pin 4 on PCB) Output Current (Amps) Output Current (Amps) Load Curre nt (Amps) 0.5 m/s (100 LFM) 1.0 m/s (200 LFM) 1.5 m/s (300 LFM) 2.0 m/s (400 LFM) 30 35 40 45 50 55 60 65 70 75 80 34 33 32 31 30 29 28 27 26 25 24 23 22 21 20 19 18 17 16 15 0.33 m/s (65 LFM) 0.5 m/s (100 LFM) 1.0 m/s (200 LFM) 1.5 m/s (300 LFM) 2.0 m/s (400 LFM) 30 85 35 40 45 0.5 m/s (100 LFM) 1.0 m/s (200 LFM) 1.5 m/s (300 LFM) 2.0 m/s (400 LFM) 35 40 45 50 55 60 65 Ambient Temperature (°C) 60 65 70 75 80 85 80 85 Maximum Current Temperature Derating at sea level Vin = 48V (air flow from Pin 1 to Pin 4 on PCB) Output Current (Amps) Output Current (Amps) Maximum Current Temperature Derating at sea level Vin = 48V (air flow from Pin 1 to Pin 4 on PCB) 30 55 Ambient Temperature (°C) Ambient Temperature (°C) 36 35 34 33 32 31 30 29 28 27 26 25 24 23 22 21 20 19 50 70 75 80 85 34 33 32 31 30 29 28 27 26 25 24 23 22 21 20 19 18 17 16 15 0.33 m/s (65 LFM) 0.5 m/s (100 LFM) 1.0 m/s (200 LFM) 1.5 m/s (300 LFM) 2.0 m/s (400 LFM) 30 35 40 45 50 55 60 65 70 75 Ambient Temperature (°C) www.murata-ps.com/support MDC_UDQ-Series.B05 Page 11 of 24 UDQ Series 420W Fully Regulated, Digitally Controlled, Advanced Bus Converter (ABC) 36 35 34 33 32 31 30 29 28 27 26 25 24 23 22 21 20 19 With Baseplate Without Baseplate Maximum Current Temperature Derating at sea level Vin = 60V (air flow from Pin 1 to Pin 4 on PCB) Maximum Current Temperature Derating at sea level Vin = 60V (air flow from Pin 1 to Pin 4 on PCB) Output Current (Amps) Output Current (Amps) PERFORMANCE DATA, UDQ2204/001 0.5 m/s (100 LFM) 1.0 m/s (200 LFM) 1.5 m/s (300 LFM) 2.0 m/s (400 LFM) 30 35 40 45 50 55 60 65 70 75 80 34 33 32 31 30 29 28 27 26 25 24 23 22 21 20 19 18 17 16 15 0.33 m/s (65 LFM) 0.5 m/s (100 LFM) 1.0 m/s (200 LFM) 1.5 m/s (300 LFM) 2.0 m/s (400 LFM) 30 85 35 40 45 50 55 60 65 70 75 80 85 80 85 Ambient Temperature (°C) Ambient Temperature (°C) Maximum Current Temperature Derating at sea level Vin = 75V (air flow from Pin 1 to Pin 4 on PCB) Maximum Current Temperature Derating at sea level Vin = 75V (air flow from Pin 1 to Pin 4 on PCB) 36 34 34 32 30 32 Output Current (Amps) Output Current (Amps) 28 30 28 26 24 0.5 m/s (100 LFM) 1.0 m/s (200 LFM) 1.5 m/s (300 LFM) 2.0 m/s (400 LFM) 22 20 18 26 24 22 20 18 0.33 m/s (65 LFM) 0.5 m/s (100 LFM) 1.0 m/s (200 LFM) 1.5 m/s (300 LFM) 2.0 m/s (400 LFM) 16 14 12 10 16 30 35 40 45 50 55 60 65 Ambient Temperature (°C) 70 75 80 85 30 35 40 45 50 55 60 65 70 75 Ambient Temperature (°C) www.murata-ps.com/support MDC_UDQ-Series.B05 Page 12 of 24 UDQ Series 420W Fully Regulated, Digitally Controlled, Advanced Bus Converter (ABC) PERFORMANCE DATA, UDQ2204/001 Start-up Delay (Vin=48V, Iout=35A, Co=6000uF, Ta=+25°C) Ch1=Vout, Ch4=Vin. On/Off Enable Start-up. (Vin=48V, Iout=35A, Co=6000uF, Ta=+25°C) Ch1=Vout, Ch3=Enable Step Load Transient Response (Vin=48v, Iout=50-75-50% of Imax, Cload=3.5mf) Ch1=Vout, Ch2=Iout Output Ripple & Noise(Vin=48V, Iout=0A, Cload=100uF, Ta=+25°C, BW=20Mhz) Output Ripple & Noise(Vin=48V, Iout=35A, Cload=100uF, Ta=+25°C, BW=20Mhz) www.murata-ps.com/support MDC_UDQ-Series.B05 Page 13 of 24 UDQ Series 420W Fully Regulated, Digitally Controlled, Advanced Bus Converter (ABC) MECHANICAL SPECIFICATIONS (OPEN FRAME) 0.210 (5.33) (NOTE 1) OTHER OPTIONS: 0.110" (2.79) LONG 0.145" (3.69) LONG 0.180" (4.57) LONG (11.30) 0.445 MAX (58.3) 2.30 (36.8) 1.45 END VIEW MTG PLANE END VIEW TOP VIEW SIDE VIEW INPUT/OUTPUT CONNECTIONS Pin Function 1 + Vin 2 Remote On/Off * 3 No Pin 4 - Vin 5 - Vout 6 + Sense 7 - Sense 8 SA0 9 SA1 10 SCL 11 SDA 12 PG SYNC 13 D GND 14 SALERT 15 CONTROL CS 16 + Vout (1.00) 0.039 MIN 3x (1.02) 0.040 BETWEEN MTG PLANE AND CONDUCTIVE COMPONENTS (1.52) 2x 0.060 (50.80) 2.000 (25.4) 1.00 (2.00) 0.079 10 x 0.020 (0.51) (8.00) 0.315 (7.62) 0.300 4 6 (15.24) 0.600 The Remote On/Off can be provided with either positive or negative logic. (7.62) 0.300 5 7 CL 2 14 1 15 16 (2.00) 0.079 CL 1. ALTERNATE PIN LENGTHS AVAILABLE (CONTACT MURATA-PS FOR INFORMATION) 2. COMPONENTS SHOWN FOR REF ONLY 3. DIMENSIONS ARE IN INCHES (mm) 4. PIN LOCATION DIMENSIONS APPLY AT CIRCUIT BOARD LEVEL BOTTOM VIEW (1.00) 0.039 Dimensions are in inches (mm shown for ref. only). Third Angle Projection MATERIAL: 0.040 PINS: COPPER ALLOY 0.060 PINS: COPPER ALLOY FINISH: (ALL PINS) GOLD (3-5u") OVER NICKEL (50u" MIN) Tolerances (unless otherwise specified): .XX ± 0.02 (0.5) .XXX ± 0.010 (0.25) Angles ± 2˚ Components are shown for reference only. www.murata-ps.com/support MDC_UDQ-Series.B05 Page 14 of 24 UDQ Series 420W Fully Regulated, Digitally Controlled, Advanced Bus Converter (ABC) MECHANICAL SPECIFICATIONS (WITH BASEPLATE) (58.3) 2.30 0.210 (5.33) (NOTE 1) OTHER OPTIONS: 0.110" (2.79) LONG 0.145" (3.69) LONG 0.180" (4.57) LONG (13.18) 0.519 MAX (47.24) 1.860 0.93 (23.62) REF (36.8) 1.45 0.515 (13.08) (26.16) 1.030 CL 2X M3X0.5 0.15 MAX SCREW PENETRATION END VIEW CL TOP VIEW INPUT/OUTPUT CONNECTIONS Pin 1 2 3 4 5 6 7 8 9 10 11 12 13 14 15 16 Function + Vin Remote On/Off * Pin to GND (optional) - Vin - Vout + Sense - Sense SA0 SA1 SCL SDA PG SYNC D GND SALERT CONTROL CS + Vout The Remote On/Off can be provided with either positive or negative logic. ANODIZED ALUMINUM BASEPLATE ('B' OPTION) SIDE VIEW (1.00) 0.039 MIN (1.02) 3x 0.040 (4x WITH GND PIN) BETWEEN MTG PLANE AND CONDUCTIVE COMPONENTS (1.52) 2x 0.060 (50.80) 2.000 (25.4) 1.00 10 x 0.020 (0.51) (2.00) 0.079 (8.00) 0.315 (7.62) 0.300 4 3 (15.24) 0.600 (7.62) 0.300 5 6 7 CL 2 14 1 1. ALTERNATE PIN LENGTHS AVAILABLE (CONTACT MURATA-PS FOR INFORMATION) 2. COMPONENTS SHOWN FOR REF ONLY 3. DIMENSIONS ARE IN INCHES (mm) 4. PIN LOCATION DIMENSIONS APPLY AT CIRCUIT BOARD LEVEL MTG PLANE END VIEW 15 16 3.81 .150 (2.00) 0.079 CL BOTTOM VIEW (1.00) 0.039 Dimensions are in inches (mm shown for ref. only). Third Angle Projection MATERIAL: 0.040 PINS: COPPER ALLOY 0.060 PINS: COPPER ALLOY FINISH: (ALL PINS) GOLD (3-5u") OVER NICKEL (50u" MIN) OPTIONAL PIN #3 CONNECTS TO BASEPLATE AND IS ELECTRICALLY ISOLATED FROM CONVERTER. Tolerances (unless otherwise specified): .XX ± 0.02 (0.5) .XXX ± 0.010 (0.25) Angles ± 2˚ Components are shown for reference only. www.murata-ps.com/support MDC_UDQ-Series.B05 Page 15 of 24 UDQ Series 420W Fully Regulated, Digitally Controlled, Advanced Bus Converter (ABC) RECOMMENDED FOOTPRINT (VIEW THROUGH CONVERTER) TOP VIEW FINISHED HOLE SIZES @ PINS 1-4 CL (PER IPC-D-275, LEVEL C) 0.048-0.062 (PRI) (1.30) 10x 0.051 PTH WITH MINIMUM ANNULAR RING @ PINS 6 THRU 15 (SEC) (2.00) 0.079 1 (37.3) 1.47 (7.62) 0.300 CL 16 (4.00) 0.157 14 3 (3.81) 0.150 (4.00) 0.157 4 (7.62) 0.300 0.100 MIN @ 1-4 FOR PIN SHOULDERS 15 2 6 (7.62) 0.300 CL 5 (2.00) 0.079 (2.00) 0.079 (1.00) 0.039 (25.4) 1.00 7 (7.62) 0.300 (50.80) 2.000 FINISHED HOLE SIZES @ PINS 5 & 16 (PER IPC-D-275, LEVEL C) 0.070-0.084 Dimensions are in inches (mm shown for ref. only). (58.9) 2.32 Third Angle Projection IT IS RECOMMENDED THAT NO PARTS BE PLACED BENEATH CONVERTER (HATCHED AREA). THE STANDOFFS ASSURE MINIMUM CLEARANCE IS MET TO ACHIEVE 2250VDC ISOLATION. OPEN VIAS OR TRACES BENEATH CONVERTER ARE ACCEPTABLE Tolerances (unless otherwise specified): .XX ± 0.02 (0.5) .XXX ± 0.010 (0.25) Angles ± 2˚ Components are shown for reference only. www.murata-ps.com/support MDC_UDQ-Series.B05 Page 16 of 24 UDQ Series 420W Fully Regulated, Digitally Controlled, Advanced Bus Converter (ABC) STANDARD PACKAGING 9.92 REF 9.92 REF 2.75±0.25 CLOSED HEIGHT CARTON ACCOMMODATES TWO (2) TRAYS YIELDING 30 CONVERTERS PER CARTON MPQ=30 EACH STATIC DISSIPATIVE POLYETHYLENE FOAM TRAY ACCOMMODATES 15 CONVERTERS IN A 3 X 5 ARRAY 11.00 ±.25 10.50 ±.25 0.88 REF DRY-PACK PACKAGING ID LABEL BAG, MOISTURE BARRIER DESICCANT PACKET DATE OF BAG SEALING (MM/DD/YYYY) MSL2 CAUTION LABEL HUMIDITY INDICATOR CARD www.murata-ps.com/support MDC_UDQ-Series.B05 Page 17 of 24 UDQ Series 420W Fully Regulated, Digitally Controlled, Advanced Bus Converter (ABC) TECHNICAL NOTES Power Management Overview This module is prepared with a PMBus interface. The module includes a wide range of readable and configurable power management features that are easy to implement with a minimum of external components. Furthermore, the module includes protection features that continuously protects the load from damage due to unexpected system faults. The SALERT pin alerts the unit if there is a fault in the module. The following product parameters can continuously be monitored by a host: Vin, Vout/current, duty cycle and internal temperature. The module is distributed with a default configuration suitable for a wide range operation in terms of Vin, Vout, and load. The configuration is kept in an internal Non-Volatile Memory (NVM). All power management functions can be reconfigured using the PMBus interface. The product provides a PMBus digital interface that enables the user to configure many aspects of the device operation as well as monitor the input and output parameters. Please contact Murata-PS for design support of special configurations. Remote On/Off Control The UDQ series modules are equipped with both Primary (Remote On/Off, Internal pull up resistor) and secondary (CONTROL CS, disabled and floating) control pins for increased system flexibility. Both are configurable via PMBus. The On/Off pins are TTL open-collector and/or CMOS open-drain compatible (see general specifications for threshold voltage levels). The standard product is provided with negative logic. Models are on (enabled) when the On/Off is grounded or brought to within a low voltage (see specifications) with respect to –Vin. The device is off (disabled) when the On/ Off is left open or is pulled high to +6Vdc with respect to –Vin. The On/Off function allows the module to be turned on/off by an external device switch. Positive-logic models are enabled when the On/Off pin is left open or is pulled high to +6V with respect to –Vin. Positive logic devices are disabled when the On/Off is grounded or brought to within a low voltage (see specifications) with respect to –Vin. To turn the module On or Off the remote On/Off pin should be left open for a minimum of 150μS. The module can be power up automatically without the need for control signals or a switch; the remote On/Off pin can be wired directly to –Vin or disabled via the 0xE3 command. The logic option for the primary remote On/Off control is configured via 0xE3 command using the PMBus. CONTROL CS (Secondary On/Off) The CONTROL CS pin can be configured via the PMBus. The default configuration is disabled and floating. The output can be configured to an internal pull up resistor up to 3.3V using the MFR_MULTI_PIN_CONG (0xF9) PMBus command. The CONTROL CS pin can be left open when not being used. The logic options for the secondary On/Off can be negative or positive logic. The logic for the secondary remote control is configured via ON_OFF_CONFIG (0x02) command using the PMBus command. See also MFR_MULTI_PIN_CONFIG section. Output Voltage Adjust (Trim) Using PMBus The output voltage of this module can be reconfigured using the PMBus interface. Margin Up/Down Controls These controls allow the output voltage to be momentarily adjusted, either up or down, by a nominal 10%. This provides a suitable method for dynamically testing the operation of the load circuit over its supply margin or range. It can also be used to confirm the function of supply voltage supervisors. The margin up and down levels of the module can be reconfigured using the PMBus interface. Soft-start Power Up The default rise time of the ramp up is 10 ms. When starting by applying input voltage the control circuit boot-up time adds an additional 15 ms delay. The soft-start power up of the module can be reconfigured using the PMBus interface. The DLS variants have a pre-configured ramp up time of 25 ms. Over Voltage Protection (OVP) The module includes over voltage limiting circuitry for protection of the load. The default OVP limit is 30% above the nominal output voltage. If the output voltage surpasses the OVP limit, the module can respond in different ways. The default response from an over voltage fault is to immediately shut down. The device will continuously check for the presence of the fault condition, and when the fault condition no longer exists the device will be re-enabled. The OVP fault level and fault response can be re-configured using the PMBus interface. Over Current Protection (OCP, Current limit) The module includes current limiting circuitry for protection at continuous overload. The default setting for the product is hicup mode if the maximum output current is exceeded and the output voltage is below 0.3×Vout, set in command IOUT_OC_LV_FAULT_LIMIT (0x48). Above the trip voltage value in command 0x48 the product will continue operate while maintaining the output current at the value set by IOUT_OC_FAULT_LIMIT (0x46). The load distribution should be designed for the maximum output short circuit current specified. Droop Load Share alternates (DLS) will enter hic-up mode, with a trip voltage, 0.04×Vout, set in command IOUT_OC_LV_FAULT_LIMIT (0x48). Above the trip voltage in command (0x48) the product will continue operate while maintaining the output current at the value set by IOUT_OC_FAULT_LIMIT (0x46). The over current protection of the module can be reconfigured using the PMBus interface. Pre-bias Start-up Capability The module has a Pre-bias start up functionality and will not sink current during start up if a Pre-bias source is present at the output terminals. If the Pre-bias voltage is lower than the target value set in VOUT_COMMAND (0x21), the module will ramp up to the target value. If the Pre-bias voltage is higher than the target value set in VOUT_COMMAND (0x21), the product will ramp down to the target value and in this case sink current for a limited of time set in the command TOFF_MAX_WARN_LIMIT (0x66). Power Good The module provides Power Good (PG) flag in the Status Word register that indicates the output voltage is within a specified tolerance of its target level www.murata-ps.com/support MDC_UDQ-Series.B05 Page 18 of 24 UDQ Series 420W Fully Regulated, Digitally Controlled, Advanced Bus Converter (ABC) 1 1 1 1 1 1 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 1 1 0 0 0 0 1 1 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 1 1 1 1 0 0 1 1 1 1 1 1 1 1 1 1 0 0 0 0 0 0 Bit 0 Secondary Remote Control 0 Pull up/down resistor enable 1) 1 0 1 0 1 0 1 0 1 0 1 DLS, Power Good Push-pull, PMBus Control (0x86) DLS, Power Good Push-pull, Sec RC w/ pull up/down (0x87) DLS, Power Good High Z when active, PMBus Control (0xA6) DLS, Power Good High Z when active, Sec RC w/ pull up/down (0xA7) Stand alone, PMBus Control (0x00) Stand alone, Sec RC w/ pull up/down (0x01) Stand alone, Power Good Push-pull, PMBus Control (0x04) Stand alone, Power Good Push-pull, Sec RC w/ pull up/down (0x05) Stand alone, Power Good High Z when active, PMBus Control (0x24) Stand alone, Power Good High Z when active, Sec RC w/ pull up/down (0x25) Bit 7:6 00 = Stand alone 01 = Slave (N/A) 10 = DLS 11 = Master (N/A) Bit 5 Power Good High Z when active Bit 4 Tracking enable (N/A) Bit 3 External reference (N/A) Bit 2 Power Good Enable Bit 1 Reserved 1) When not used with PMBus, the CTRL input can be internally pulled up or down depending on if it is active high or low. When active low it will be pulled up and vice versa and no fault condition exists. If specified in section Connections, the product also provides a PG signal output. The Power Good signal is by default configured as active low, Push-pull and can be reconfigured via the PMBus interface. The Power Good output can be configured as Push-pull or “High Z when active” to permit AND’ing of parallel devices. It is not recommended to use Push-pull when paralleling PG-pins, see MFR_MULTI_PIN_CONFIG. Switching Frequency Adjust Using PMBus The switching frequency is set to 140 kHz as default but this can be reconfigured via the PMBus interface. The product is optimized at this frequency but can run at lower and higher frequency, (125-150 kHz). The electrical performance can be affected if the switching frequency is changed. MFR_MULTI_PIN_CONFIG The MFR_MULTI_PIN_CONFIG (0xF9) command enables or disables different functions inside the product. This command can be configured according to the table for different functions. The MFR_MULTI_PIN_CONFIG can be reconfigured using the PMBus interface. Default configuration is set to Power Good Push-Pull (0x04) for stand alone variants and DLS Power Good Push-Pull (0x86) for Droop Load Share variants. PMBus Interface This module offers a PMBus digital interface that enables the user to configure many characteristics of the device operation as well as to monitor the input and output voltages, output current and device temperature. The module can be used with any standard two-wire I2C or SMBus host device. In addition, the module is compatible with PMBus version 1.2 and includes an SALERT line to help alleviate bandwidth limitations related to continuous fault monitoring. The module supports 100 kHz and 400 kHz bus clock frequency only. The PMBus signals, SCL, SDA and SALERT require passive pull-up resistors as stated in the SMBus Specification. Pull-up resistors are required to guarantee the rise time as follows: t = Rp Cp ≤ μs where Rp is the pull-up resistor value and Cp is the bus load. The maximum allowed bus load is 400 pF. The pull-up resistor should be tied to an external supply between 2.7 to 5.5 V, which should be present prior to or during powerup. If the proper power supply is not available, voltage dividers may be applied. Note that in this case, the resistance in the equation above corresponds to parallel connection of the resistors forming the voltage divider. It is recommended to always use PEC (Packet Error Check) when communicating via PMBus. For these products it is a requirement to use PEC when using Send Byte to the device, for example command “RESTORE_DEFAULT_ALL”. Monitoring via PMBus A system controller (host device) can monitor a wide variety of parameters through the PMBus interface. The controller can monitor fault conditions by monitoring the SALERT pin, which will be asserted when any number of preconfigured fault or warning conditions occur. The system controller can also continuously monitor any number of power conversion parameters including but not limited to the following: • Input voltage • Output voltage • Output current • Internal junction temperature • Switching frequency (Monitors the set value not actual frequency) • Duty cycle Software Tools for Design and Production For these modules Murata-PS provides software for configuring and monitoring via the PMBus interface. For more information please contact your local Murata-PS representative. www.murata-ps.com/support MDC_UDQ-Series.B05 Page 19 of 24 UDQ Series 420W Fully Regulated, Digitally Controlled, Advanced Bus Converter (ABC) PMBus Addressing The following figure and table show recommended resistor values with min and max voltage range for hard-wiring PMBus addresses (series E12, 1% tolerance resistors suggested): PMBus Commands The products are PMBus compliant. The following table lists the implemented PMBus read commands. For more detailed information see PMBus Power System Management Protocol Specification; Part I – General Requirements, Transport and Electrical Interface and PMBus Power System Management Protocol; Part II – Command Language. DESIGNATION CMD PROT 01h 02h 10h No No No 20h 21h 22h 23h 24h 25h 26h 27h 29h 2Ah 32h 33h 35h 36h 38h 39h No No No Yes No No No No Yes Yes No No No No Yes Yes 40h 41h 42h 43h 44h 45h 46h 47h 48h 4Ah 4Fh 50h 51h 52h 53h 54h 55h 56h 57h 58h 59h 5Ah 5Eh 5Fh No No No No No No No No No No No No No No No No No No No No No No No No 60h 61h 62h 63h 64h 65h 66h No No No No No No No Standard PMBus Commands Control Commands SA0 SA1 R1 R0 OPERATION ON_OFF_CONFIG WRITE_PROTECT Output Commands Figure 1. Schematic of Connection of Address Resistors SA0/SA1 Index RSA0/RSA1 [kΩ] 0 1 2 3 4 5 6 7 10 22 33 47 68 100 150 220 The SA0 and SA1 pins can be configured with a resistor to GND according to the following equation. PMBus Address = 8 x (SA0value) + (SA1 value) If the calculated PMBus address is 0, 11 or 12, PMBus address 127 is assigned instead. From a system point of view, the user shall also be aware of further limitations of the addresses as stated in the PMBus Specification. It is not recommended to keep the SA0 and SA1 pins left open. I2 C/SMBus – Timing SCL SDA tset thold Figure 2. Setup and hold times timing diagram The setup time, tset, is the time data, SDA, must be stable before the rising edge of the clock signal, SCL. The hold time thold, is the time data, SDA, must be stable after the rising edge of the clock signal, SCL. If these times are violated incorrect data may be captured or meta-stability may occur and the bus communication may fail. When configuring the product, all standard SMBus protocols must be followed, including clock stretching. Additionally, a bus-free time delay between every SMBus transmission (between every stop & start condition) must occur. Refer to the SMBus specification, for SMBus electrical and timing requirements. Note that an additional delay of 5 ms has to be inserted in case of storing the RAM content into the internal non-volatile memory. VOUT_MODE VOUT_COMMAND VOUT_TRIM VOUT_CAL_OFFSET VOUT_MAX VOUT_MARGIN_HIGH VOUT_MARGIN_LOW VOUT_TRANSITION_RATE VOUT_SCALE_LOOP VOUT_SCALE_MONITOR MAX_DUTY FREQUENCY_SWITCH VIN_ON VIN_OFF IOUT_CAL_GAIN IOUT_CAL_OFFSET Fault Commands VOUT_OV_FAULT_LIMIT VOUT_OV_FAULT_RESPONSE VOUT_OV_WARN_LIMIT VOUT_UV_WARN_LIMIT VOUT_UV_FAULT_LIMIT VOUT_UV_FAULT_RESPONSE IOUT_OC_FAULT_LIMIT IOUT_OC_FAULT_RESPONSE IOUT_OC_LV_FAULT_LIMIT IOUT_OC_WARN_LIMIT OT_FAULT_LIMIT OT_FAULT_RESPONSE OT_WARN_LIMIT UT_WARN_LIMIT UT_FAULT_LIMIT UT_FAULT_RESPONSE VIN_OV_FAULT_LIMIT VIN_OV_FAULT_RESPONSE VIN_OV_WARN_LIMIT VIN_UV_WARN_LIMIT VIN_UV_FAULT_LIMIT VIN_UV_FAULT_RESPONSE POWER_GOOD_ON POWER_GOOD_OFF Time Setting Commands TON_DELAY TON_RISE TON_MAX_FAULT_LIMIT TON_MAX_FAULT_RESPONSE TOFF_DELAY TOFF_FALL TOFF_MAX_WARN_LIMIT www.murata-ps.com/support MDC_UDQ-Series.B05 Page 20 of 24 UDQ Series 420W Fully Regulated, Digitally Controlled, Advanced Bus Converter (ABC) DESIGNATION CMD PROT 03h 78h 79h 7Ah 7Bh 7Ch 7Dh 7Eh 7Fh No No No No No No No No No 88h 8Bh 8Ch 8Dh 8Eh 94h Cmd 95h No No No No No No Prot No B0h No 98h 99h 9Ah 9Bh 9Ch 9Dh 9Eh No Yes Yes Yes Yes Yes Yes 11h 12h 15h 16h 19h Yes No No No No D0h D3h DCh DDh DEh E1h E2h E3h E5h E7h F0h F1h F2h F3h F4h F5h F6h F8h F9h FAh FBh FEh No Yes No Yes Yes No No No Yes Yes No No No Yes Yes Yes Yes No No Yes Yes No Status Commands (Read Only) CLEAR_FAULTS STATUS_BYTES STATUS_WORD STATUS_VOUT STATUS_IOUT STATUS_INPUT STATUS_TEMPERATURE STATUS_CML STATUS_OTHER Monitior Commands (Read Only) READ_VIN READ_VOUT READ_IOUT READ_TEMPERATURE_1 READ_TEMPERATURE_2 READ_DUTY_CYCLE Designation READ_FREQUENCY Configuration and Control Commands USER_DATA_00 Identification Commands (Read Only) PMBUS_REVISION MFR_ID MFR_MODEL MFR_REVISION MFR_LOCATION MFR_DATE MFR_SERIAL Supervisory Commands STORE_DEFAULT_ALL RESTORE_DEFAULT_ALL STORE_USER_ALL RESTORE_USER_ALL CAPABILITY Product Specific Commands MFR_POWER_GOOD_POLARITY MFR_VIN_SCALE_MONITOR MFR_SELECT_TEMP_SENSOR MFR_VIN_OFFSET MFR_VOUT_OFFSET_MONITOR MFR_TEMP_OFFSET_INT MFR_REMOTE_TEMP_CAL MFR_REMOTE_CTRL MFR_DEAD_BAND_DELAY MFR_TEMP_COEFF MFR_DEBUG_BUFF MFR_SETUP_PASSWORD MFR_DISABLE_SECURITY_ONCE MFR_DEAD_BAND_IOUT_THRESHOLD MFR_SECURITY_BIT_MASK MFR_PRIMARY_TURN MFR_SECONDARY_TURN MFR_ILIM_SOFTSTART MFR_MULTI_PIN_CONFIG MFR_DEAD_BAND_VIN_THRESHOLD MFR_DEAD_BAND_VIN_IOUT_HYS MFR_RESTART Notes: CMD is short for Command. PROT is short for commands that are protected with security mask. Thermal Shutdown Extended operation at excessive temperature will initiate overtemperature shutdown triggered by a temperature sensor inside the PWM controller. This operates similarly to overcurrent and short circuit mode. The inception point of the overtemperature condition depends on the average power delivered, the ambient temperature and the extent of forced cooling airflow. Thermal shutdown uses only the hiccup mode (autorestart). Start Up Considerations When power is first applied to the DC/DC converter, there is some risk of start up difficulties if you do not have both low AC and DC impedance and adequate regulation of the input source. Make sure that your source supply does not allow the instantaneous input voltage to go below the minimum voltage at all times. Use a moderate size capacitor very close to the input terminals. You may need two or more parallel capacitors. A larger electrolytic or ceramic cap supplies the surge current and a smaller parallel low-ESR ceramic cap gives low AC impedance. Remember that the input current is carried both by the wiring and the ground plane return. Make sure the ground plane uses adequate thickness copper. Run additional bus wire if necessary. Input Fusing Certain applications and/or safety agencies may require fuses at the inputs of power conversion components. Fuses should also be used when there is the possibility of sustained input voltage reversal which is not current-limited. For greatest safety, we recommend a fast blow fuse installed in the ungrounded input supply line. Input Under-Voltage Shutdown and Start-Up Threshold Under normal start-up conditions, converters will not begin to regulate properly until the rising input voltage exceeds and remains at the Start-Up Threshold Voltage (see Specifications). Once operating, converters will not turn off until the input voltage drops below the Under-Voltage Shutdown Limit. Subsequent restart will not occur until the input voltage rises again above the Start-Up Threshold. This built-in hysteresis prevents any unstable on/off operation at a single input voltage. The over/under-voltage fault level and fault response can be configured via the PMBus interface. Start-Up Time Assuming that the output current is set at the rated maximum, the Vin to Vout Start-Up Time (see Specifications) is the time interval between the point when the rising input voltage crosses the Start-Up Threshold and the fully loaded output voltage enters and remains within its specified accuracy band. Actual measured times will vary with input source impedance, external input capacitance, input voltage slew rate and final value of the input voltage as it appears at the converter. These converters include a soft start circuit to moderate the duty cycle of its PWM controller at power up, thereby limiting the input inrush current. The On/Off Remote Control interval from On command to Vout (final ±5%) assumes that the converter already has its input voltage stabilized above the Start-Up Threshold before the On command. The interval is measured from the On command until the output enters and remains within its specified accuracy band. The specification assumes that the output is fully loaded at maximum rated current. Similar conditions apply to the On to Vout regulated specification such as external load capacitance and soft start circuitry. www.murata-ps.com/support MDC_UDQ-Series.B05 Page 21 of 24 UDQ Series 420W Fully Regulated, Digitally Controlled, Advanced Bus Converter (ABC) Recommended Input Filtering The user must assure that the input source has low AC impedance to provide dynamic stability and that the input supply has little or no inductive content, including long distributed wiring to a remote power supply. The converter will operate with no additional external capacitance if these conditions are met. For best performance, we recommend installing a low-ESR capacitor immediately adjacent to the converter’s input terminals. The capacitor should be a ceramic type such as the Murata GRM32 series or a polymer type. Make sure that the input terminals do not go below the undervoltage shutdown voltage at all times. More input bulk capacitance may be added in parallel (either electrolytic or tantalum) if needed. Recommended Output Filtering The converter will achieve its rated output ripple and noise with no additional external capacitor. However, the user may install more external output capacitance to reduce the ripple even further or for improved dynamic response. Again, use low-ESR ceramic (Murata GRM32 series) or polymer capacitors. Mount these close to the converter. Measure the output ripple under your load conditions. Use only as much capacitance as required to achieve your ripple and noise objectives. Excessive capacitance can make step load recovery sluggish or possibly introduce instability. Do not exceed the maximum rated output capacitance listed in the specifications. Input Ripple Current and Output Noise All models in this converter series are tested and specified for input reflected ripple current and output noise using designated external input/output components, circuits and layout as shown in the figures below. The Cbus and Lbus components simulate a typical DC voltage bus. TO OSCILLOSCOPE CURRENT PROBE +Vin VIN + – + – LBUS CBUS CIN -Vin CIN = 33μF, ESR < 700mΩ @ 100kHz CBUS = 220μF, ESR < 100mΩ @ 100kHz LBUS = 12μH Figure 3. Measuring Input Ripple Current Minimum Output Loading Requirements All models regulate within specification and are stable under no load to full load conditions. Operation under no load might however slightly increase output ripple and noise. Thermal Shutdown (OTP, UTP) To prevent many over temperature problems and damage, these converters include thermal shutdown circuitry. If environmental conditions cause the temperature of the DC/DC’s to rise above the Operating Temperature Range up to the shutdown temperature, an on-board electronic temperature sensor will power down the unit. When the temperature decreases below the turn-on +Vout C1 C2 C3 SCOPE RLOAD -Vout C1 = 3.5mF; C2 = 1μF; C3 = 10μF LOAD 2-3 INCHES (51-76mm) FROM MODULE Figure 4. Measuring Output Ripple and Noise (PARD) threshold set in the command OT_WARM_LIMIT (0X51), the hysteresis is defined in general electrical specification section. The OTP and hysteresis of the module can be re-configured using the PMBus interface. The module has also an under temperature protection. The OTP and UTP fault limit and fault response can be configured via the PMBus. Note: using the fault response “continue without interruption” may cause permanent damage to the module. There is a small amount of hysteresis to prevent rapid on/off cycling. CAUTION: If you operate too close to the thermal limits, the converter may shut down suddenly without warning. Be sure to thoroughly test your application to avoid unplanned thermal shutdown. Temperature Derating Curves The graphs in this data sheet illustrate typical operation under a variety of conditions. The Derating curves show the maximum continuous ambient air temperature and decreasing maximum output current which is acceptable under increasing forced airflow measured in Linear Feet per Minute (“LFM”). Note that these are AVERAGE measurements. The converter will accept brief increases in current or reduced airflow as long as the average is not exceeded. Note that the temperatures are of the ambient airflow, not the converter itself which is obviously running at higher temperature than the outside air. Also note that “natural convection” is defined as very flow rates which are not using fan-forced airflow. Depending on the application, “natural convection” is usually about 30-65 LFM but is not equal to still air (0 LFM). Murata Power Solutions makes Characterization measurements in a closed cycle wind tunnel with calibrated airflow. We use both thermocouples and an infrared camera system to observe thermal performance. As a practical matter, it is quite difficult to insert an anemometer to precisely measure airflow in most applications. Sometimes it is possible to estimate the effective airflow if you thoroughly understand the enclosure geometry, entry/exit orifice areas and the fan flowrate specifications. CAUTION: If you exceed these Derating guidelines, the converter may have an unplanned Over Temperature shut down. Also, these graphs are all collected near Sea Level altitude. Be sure to reduce the derating for higher altitude. Output Fusing The converter is extensively protected against current, voltage and temperature extremes. However your output application circuit may need additional protection. In the extremely unlikely event of output circuit failure, excessive voltage could be applied to your circuit. Consider using an appropriate fuse in series with the output. www.murata-ps.com/support MDC_UDQ-Series.B05 Page 22 of 24 UDQ Series 420W Fully Regulated, Digitally Controlled, Advanced Bus Converter (ABC) Output Short Circuit Condition The short circuit condition is an extension of the “Current Limiting” condition. When the monitored peak current signal reaches a certain range, the PWM controller’s outputs are shut off thereby turning the converter “off.” This is followed by an extended time out period. This period can vary depending on other conditions such as the input voltage level. Following this time out period, the PWM controller will attempt to re-start the converter by initiating a “normal start cycle” which includes softstart. If the “fault condition” persists, another “hiccup” cycle is initiated. This “cycle” can and will continue indefinitely until such time as the “fault condition” is removed, at which time the converter will resume “normal operation.” Operating in the “hiccup” mode during a fault condition is advantageous in that average input and output power levels are held low preventing excessive internal increases in temperature. Output Capacitive Load These converters do not require external capacitance added to achieve rated specifications. Users should only consider adding capacitance to reduce switching noise and/or to handle spike current load steps. Install only enough capacitance to achieve noise objectives. Excess external capacitance may cause degraded transient response and possible oscillation or instability. Remote Sense Input Use the Sense inputs with caution. Sense is normally connected at the load. Sense inputs compensate for output voltage inaccuracy delivered at the load. This is done by correcting IR voltage drops along the output wiring and the current carrying capacity of PC board etch. This output drop (the difference between Sense and Vout when measured at the converter) should not exceed 0.5V. Consider using heavier wire if this drop is excessive. Sense inputs also improve the stability of the converter and load system by optimizing the control loop phase margin. Note: The Sense input and power Vout lines are internally connected through low value resistors to their respective polarities so that the converter can operate without external connection to the Sense. Nevertheless, if the Sense function is not used for remote regulation, the user should connect +Sense to +Vout and –Sense to –Vout at the converter pins. The remote Sense lines carry very little current. They are also capacitively coupled to the output lines and therefore are in the feedback control loop to regulate and stabilize the output. As such, they are not low impedance inputs and must be treated with care in PC board layouts. Sense lines on the PCB Contact and PCB resistance losses due to IR drops +VOUT −VIN should run adjacent to DC signals, preferably Ground. In cables and discrete wiring, use twisted pair, shielded tubing or similar techniques. Any long, distributed wiring and/or significant inductance introduced into the Sense control loop can adversely affect overall system stability. If in doubt, test your applications by observing the converter’s output transient response during step loads. There should not be any appreciable ringing or oscillation. You may also adjust the output trim slightly to compensate for voltage loss in any external filter elements. Do not exceed maximum power ratings. Please observe Sense inputs tolerance to avoid improper operation: [Vout(+) −Vout(-)] − [Sense(+) −Sense(-)] ≤ 10% of Vout Output overvoltage protection is monitored at the output voltage pin, not the Sense pin. Therefore excessive voltage differences between Vout and Sense together with trim adjustment of the output can cause the overvoltage protection circuit to activate and shut down the output. Power derating of the converter is based on the combination of maximum output current and the highest output voltage. Therefore the designer must ensure: (Vout at pins) x (Iout) ≤ (Max. rated output power) Soldering Guidelines Murata Power Solutions recommends the specifications below when installing these converters. These specifications vary depending on the solder type. Exceeding these specifications may cause damage to the product. Be cautious when there is high atmospheric humidity. We strongly recommend a mild pre-bake (100° C. for 30 minutes). Your production environment may differ; therefore please thoroughly review these guidelines with your process engineers. Wave Solder Operations for through-hole mounted products (THMT) For Sn/Ag/Cu based solders: Maximum Preheat Temperature 115° C. Maximum Pot Temperature 270° C. Maximum Solder Dwell Time 7 seconds For Sn/Pb based solders: Maximum Preheat Temperature 105° C. Maximum Pot Temperature 250° C. Maximum Solder Dwell Time 6 seconds Reflow Solder Operations for surface-mount products (SMT) For Sn/Ag/Cu based solders: Preheat Temperature Less than 1 °C. per second Time over Liquidus 45 to 75 seconds Maximum Peak Temperature 260 °C. Cooling Rate Less than 3 °C. per second For Sn/Pb based solders: Preheat Temperature Less than 1 °C. per second Time over Liquidus 60 to 75 seconds Maximum Peak Temperature 235 °C. Cooling Rate Less than 3 °C. per second I OUT Recommended Lead-free Solder Reflow Profile (SMT) +SENSE Sense Current TRIM LOAD Sense Return −SENSE I OUT Return +VIN 200 Temperature (°C) ON/OFF CONTROL Peak Temp. 235-260° C 250 Reflow Zone 150 Soaking Zone 120 sec max 100 -VOUT <1.5° C/sec Contact and PCB resistance losses due to IR drops time above 217° C 45-75 sec High trace = normal upper limit Low trace = normal lower limit Preheating Zone 50 240 sec max 0 Figure 5. Remote Sense Circuit Configuration 0 30 60 90 120 150 Time (sec) 180 210 240 270 300 www.murata-ps.com/support MDC_UDQ-Series.B05 Page 23 of 24 UDQ Series 420W Fully Regulated, Digitally Controlled, Advanced Bus Converter (ABC) IR Transparent optical window Unit under test (UUT) IR Video Camera Precision low-rate anemometer 3” below UUT Ambient temperature sensor Airflow collimator Vertical Wind Tunnel Murata Power Solutions employs a computer controlled custom-designed closed loop vertical wind tunnel, infrared video camera system, and test instrumentation for accurate airflow and heat dissipation analysis of power products. The system includes a precision low flow-rate anemometer, variable speed fan, power supply input and load controls, Variable temperature gauges, and adjustable heating element. speed fan The IR camera monitors the thermal performance of the Unit Under Test (UUT) under static steady-state conditions. A special optical port is used which is transparent to infrared wavelengths. Both through-hole and surface mount converters are soldered down to a 10" x 10" host carrier board for realistic heat absorption and spreading. Both longitudinal and transverse airflow studies are possible by rotation of this carrier Heating board since there are often significant differences in the heat element dissipation in the two airflow directions. The combination of adjustable airflow, adjustable ambient heat, and adjustable Input/Output currents and voltages mean that a very wide range of measurement conditions can be studied. The collimator reduces the amount of turbulence adjacent to the UUT by minimizing airflow turbulence. Such turbulence influences the effective heat transfer characteristics and gives false readings. Excess turbulence removes more heat from some surfaces and less heat from others, possibly causing uneven overheating. Both sides of the UUT are studied since there are different thermal gradients on each side. The adjustable heating element and fan, built-in temperature gauges, and no-contact IR camera mean that power supplies are tested in real-world conditions. Figure 6. Vertical Wind Tunnel Murata Power Solutions, Inc. 11 Cabot Boulevard, Mansfield, MA 02048-1151 U.S.A. ISO 9001 and 14001 REGISTERED This product is subject to the following operating requirements and the Life and Safety Critical Application Sales Policy: Refer to: http://www.murata-ps.com/requirements/ Murata Power Solutions, Inc. makes no representation that the use of its products in the circuits described herein, or the use of other technical information contained herein, will not infringe upon existing or future patent rights. The descriptions contained herein do not imply the granting of licenses to make, use, or sell equipment constructed in accordance therewith. Specifications are subject to change without notice. © 2014 Murata Power Solutions, Inc. www.murata-ps.com/support MDC_UDQ-Series.B05 Page 24 of 24