CXA20 Series | 20W DC/DC Isolated DC/DC converters CXA20 SERIES Single and dual output 4:1 input voltage range No minimum load required 6A on 3.3V (48V) output at 50˚C in still air Wide operating temperature with overtemperature protection ±10% output voltage trim Overvoltage protection Remote ON/OFF control Approved to EN60950, UL1950, cUL1950 Complies with ETS 300 019-1-3/2-3 Complies with ETS 300 132-2 input voltage and current requirements Complies with ETS 300 386-1 Pin compatible with NFC15 and NFC20 series Fixed switching frequency Basic insulation system (input to output) The CXA20 is a new 20W addition to the enhanced performance and reliability CXA family of open-frame, isolated, DC/DC through low component count and converters. The five model series features a conservative component deratings. 4:1 input voltage range of 18 to 75VDC, The CXA20 offers remote on/off, as well as making it suitable for a wide variety of overvoltage, overtemperature and short communications and distributed power circuit protection features. applications. With its 2.0 x 1.6 inch industry With full international safety approval standard footprint, the CXA20 provides an including EN60950 and cUL1950, the easy upgrade option for new and existing CXA20 reduces system compliance costs Artesyn customers seeking a high- and time to market. It provides basic performance, cost-effective power supply. insulation from input to output and can The CXA20 is available in output voltages of operate in high ambient temperatures with 3.3V, 5V, 12V, ±5V and ±12V. The 3.3V or without airflow. version delivering up to 6A is fully rated to 20W. Typical efficiency for the CXA20 is 83 [ 2 YEAR WARRANTY ] percent. Designed using Artesyn’s custom control chip, automated component placement and planar magnetics, the CXA20 affords 1 DC/DC SXA10 Series | 10W CXA20 Series | 20W DC/DC Isolated DC/DC converters Stresses in excess of the maximum ratings can cause permanent damage to the device. Operation of the device is not implied at these or any other conditions in excess of those given in the specification. Exposure to absolute maximum ratings can adversely affect device reliability. Absolute Maximum Ratings Characteristic Symbol Min Input voltage - continuous Vin (cont) Input voltage - peak/surge or standard/level Typ Max Units Notes and Conditions -0.3 80 VDC Vin(+) - Vin(-) Vin (peak) -0.3 100 VDC 2s max. non repetitive Input voltage remote pin Vrem (peak) -0.3 75 VDC Peaks of any duration Operating temp. - singles Top -40 +105 ˚C Operating temp. - duals Top -40 +105 ˚C Measured at thermal reference point, see Note 1 and Fig. 8.1 Measured at thermal reference point, see Note 1 and Fig. 8.2 Storage temperature Tstorage -55 +125 ˚C All specifications are at nominal input, full resistive load and 25˚C unless otherwise stated. Input Characteristics Characteristic Symbol Min Typ Max Units Input voltage - operating Vin (oper) 18 - 75 VDC Input current - no load lin 18 22 mADC Vin (min) - Vin (max), enabled Input current - Quiescent lin (off) 5 10 mADC Converter disabled Input voltage rise/fall time dv/dt 5 V/ms As per ETS300-132 Inrush current (i t or peak) linrush - As As per ETS300-132 - dB Frequency <1 kHz 2 A Slow blow/anti-surge, HRC recommended, 200 V rated Notes and Conditions 2 Input ripple rejection 60 Input fuse 2 Notes and Conditions Turn On/Off Characteristic Symbol Min Typ Max Units Input voltage - turn on Vin (on) - 16.5 18 VDC Input voltage - turn off Vin (off) 14 15.5 18 VDC Hysteresis 1 VDC Turn on delay - enabled, then power applied Tdelay (power) - 10 20 msec With the enable signal asserted, this is the time from when the input voltage reaches the minimum specified operating voltage until the output voltage is within the total regulation band Turn on delay - power applied, then enabled Tdelay (enable) - 10 20 msec Vin = Vin (nom), then enabled. This is the time taken until the output voltage is within the total error band Rise time Trise - 5 10 msec From 10% to 90%; full resistive load, no external capacitance 2 CXA20 Series | 20W DC/DC Isolated DC/DC converters Signal Electrical Interface Characteristic - Signal Name Symbol Min Typ Max Units Notes and Conditions At remote/control ON/OFF pin Control pin open circuit voltage Vih (oc) 3 5 6 V See Notes 2 and 3 Iih = 0µA; open circuit voltage High level input voltage Vih 2 High level input current Iih Acceptable high level leakage current V Converter guaranteed on when control pin is greater than Vih (min) 100 µA Current flowing into control pin when pin is pulled high Iih (leakage) -50 µA Acceptable leakage current from signal pin into the open collector driver (neg = from converter) Low level input voltage ViI 1.2 V Converter guaranteed off when control pin is less than Vil (max) Low level input current IiI -150 µA Vil = 0.4 V Low level input current Iil (max) -200 µA ViI = 0.0 V; maximum source current from converter with short circuit Common Protection/Control Characteristic Symbol Min Typ Max Units Notes and Conditions Overtemperature shutdown threshold (singles) Tots 115 120 125 ˚C PCB temperature at PTC(s), non-latching shutdown protection Overtemperature shutdown - restart hysteresis - - 1 - ˚C Remote sense compensation NA mV There is no remote compensation available on this device Units Notes and Conditions Reliability and Service Life Characteristic Symbol Min Typ Max Mean time between failure MTBF 400,000 Hours MIL-HDBK-217F, Vin = Vin (nom); Iout = Iout (max); ambient 25˚C; ground benign environment Mean time between failure MTBF TBD Hours Demonstrated Symbol Min Max Units Notes and Conditions 1500 VDC Test duration 1s Isolation Characteristic Typ Input to output test voltage Input to output capacitance Input to output resistance Input to output insulation system 3 www.artesyn.com 1500 100 pF MΩ Basic Measured with 500 VDC SXA10 Series | 10W DC/DC CXA20 Series | 20W DC/DC Isolated DC/DC converters Other Specifications Characteristic Symbol Min Typ Max Units Notes and Conditions Switching frequency Fsw 360 400 440 kHz Fixed frequency Weight - 26 - g Min Typ Max Units Notes and Conditions -40 +60 ˚C Dependent on input voltage See Notes 1, 5 and Figures 1.1-1.5 and 8 m ft m ft Derate max. output current by 20% Derate max. output current by 50% Environmental Requirements Characteristic Symbol Thermal performance Altitude 3,000 9,864 10,000 32,821 Characteristic Parameter Reference Test Level Notes and Conditions Air temperature Low High Change IEC 68-2-1 IEC 68-2-2 IEC 68-2-14 -40˚C +60˚C (T3.4) -40˚C to +60˚C All characteristics and parameters extracted from ETS 300 019 classes 3.1, 3.2, 3.3, 3.4 and 3.5 Relative humidity Low High Condensation IEC 68-2-56 IEC 68-2-30 10% 93% 90 to 100% Damp heat, 4 days Damp heat, 2 cycles, 25 to 35˚C Vibration IEC class 3M5 Shocks IEC class 3M5 Freq. velocity IEC 68-2-6 Freq. acceleration IEC 68-2-6 MIL-STD-202F Acceleration IEC 68-2-29 MIL-STD-202F 5-9Hz 5mm/s 9-200Hz 1g Method 204 cond. A 10g Method 213B cond. F Referenced ETSI standards: ETS 300 019: Environmental conditions and environmental tests for telecommunications equipment ETS 300 019: Part 1-3 (1997) Classification of environmental conditions stationary use at weather protected locations ETS 300 019: Part 2-3 (1997) Specification of environmental tests stationary use at weather protected locations EMC Electromagnetic Compatibility Phenomenon Port Standard Test level Criteria Notes and conditions ESD Enclosure EN61000-4-2 6kV cont 8kV air 8kV cont 15kV air NP NP RP RP As per ETS 300 386-1 table 5 EFT DC power EN61000-4-4 EN61000-4-4 NP LFS NP LFS As per ETS 300 386-1 table 5 Signal 2kV 4kV 1kV 2kV Radiated field Enclosure EN61000-4-3 10V/m NP As per ETS 300 386-1 table 5 Surges Indoor signal EN61000-4-5 500V RP As per ETS 300 386-1 table 5 Conducted DC power Signal EN61000-4-6 EN61000-4-6 10V 10V NP NP As per ETS 300 386-1 table 5 Input transients DC power Immunity: 4 As per ETS 300 386-1 table 5 ETS 300 132, ETR 283 CXA20 Series | 20W DC/DC Isolated DC/DC converters EMC Electromagnetic Compatibility Phenomenon Port Standard Test level Criteria Notes and conditions DC power EN55022 Level A EN55022 Level B EN55022 Level B See recommended external filter (See Application Note 107) for compliance. Bandwidth 20 kHz to 30 MHz, as per ETS 300 386-1 See recommended external filter (See Application Note 107) for compliance. Bandwidth 20 kHz to 30 MHz, as per ETS 300 386-1 Bandwidth 150kHz to 30MHz, as per ETS 300 386-1 EN55022 Level B Emission: Conducted Signal Radiated (See Application Note 107) Bandwidth 30 MHz to 1 GHz, as per ETS 300 386-1, with Cu ground plane Performance criteria: NP: Normal Performance: EUT shall withstand applied test and operate within relevant limits as specified without damage. RP: Reduced Performance: EUT shall withstand applied test. Reduced performance is permitted within specified limits, resumption to normal performance shall occur at the cessation of the test. LFS: Loss of Function (self recovery): EUT shall withstand applied test without damage, temporary loss of function permitted during test. Unit will self recover to normal performance after test. Referenced ETSI standards: ETS 300 386-1 table 5 (1997): Public telecommunication network equipment, EMC requirements ETS 300 132-2 (1996): Power supply interface at the input to telecommunication equipment: Part 2 operated by direct current (DC) ETR 283 (1997): Transient voltages at interface A on telecommunications direct current (DC) power distributions Safety Agency Approvals Characteristic UL/cUL 1950 File Number VDE Reference Number VDE License Number E136005 10401-3336-0154/31HJK DE1-8142 (CB Certificate Number) TBA Standards Compliance List Standard Category EN60950 UL/cUL1950 VDE 3rd edition EN60950 (VDE0805) : 1997 + A11 Material Ratings Characteristic - Signal Name Notes and Conditions Flammability rating Material type UL94V-0 FR4 PCB Model Numbers Model Number Input Voltage CXA20-48S3V3 CXA20-48S05 CXA20-48S12 CXA20-48D05 CXA20-48D12 5 www.artesyn.com 18-75 18-75 18-75 18-75 18-75 VDC VDC VDC VDC VDC Output Voltage Overvoltage Protection (6) Output Current (Max.) Typical Efficiency 3.3V 5V 12V ±5V ±12V 3.7V 6.67V 14.25V 6.67V 14.25V 6A 4A 1.66A 2A ea. 0.83A ea. 80% 83% 83% 84% 84% SXA10 Series | 10W DC/DC CXA20 Series | 20W DC/DC Isolated DC/DC converters CXA20-48S3V3 Model Input Characteristics Characteristic Symbol Input current - operating Min Typ Max Units Notes and Conditions Iin 0.52 0.53 ADC Vin = Vin (nom); Iout = Iout (max); Vo = Vo (nom) Input current - maximum Iin (max) 1.41 1.45 ADC Vin = Vin (min); Iout = Iout (max); Vo = nom Reflected ripple current Iin (ripple) 3 10 mA RMS Iout = Iout (max), measured with no external bypass capacitor Reflected ripple current Iin (ripple) 20 40 mA pk-pk Iout = Iout (max), measured with no external bypass capacitor Input capacitance - internal filter (all models) Cinput 1.5 µF Internal to converter (ceramic) CXA20-48S3V3 Model Electrical Characteristics - O/P Characteristic Symbol Min Typ Max Units Notes and Conditions Nominal set-point voltage Vout (nom) 3.25 3.30 3.35 VDC Vin = Vin (Nom); Iout = Iout (nom); T = 25˚C Total regulation band Vout 3.16 - 3.43 VDC For all line, static load and temperature until end of life. Line regulation - 0.10 0.20 % Iout = Iout (nom) Vin (min) - Vin (max) Load regulation - 0.20 0.30 % Vin = Vin (Nom) Iout (min) - Iout (max) 0.02 ±%/˚C Vin = Vin (Nom) Iout = Iout (nom) 6.00 ADC Temperature regulation Output current continuous Iout Output current - short circuit Isc 5.00 6.00 A RMS Output voltage - noise Vp-p Vrms 50 13 75 20 mV pk-pk Measurement bandwidth 20 MHz mV RMS Measurement bandwidth 20 MHz See Application Note 107 for measurement set-up details 6 0.00 Continuous, unit auto recovers from short, load resistance <20 mΩ CXA20 Series | 20W DC/DC Isolated DC/DC converters CXA20-48S3V3 Model Electrical Characteristics - O/P Characteristic Symbol Load transient response peak deviation Min Typ Max Units Notes and Conditions Vdynamic 1.0 2.0 % Peak deviation for 50% to 75% step load, di/dt = 100 mA/µsec Load transient response recovery Trecovery 100 300 µsec Settling time to within 1% of output set point voltage for 50% to 75% step load External load capacitance Cext 0 10,000 2,000 µF µF Vin = 18 to 36 VDC Vin = 36 to 75 VDC Characteristic Symbol Min Max Units Notes and Conditions Overvoltage clamp voltage Vov 3.70 4.10 VDC Non-latching. Refer to Application Note 107 Overcurrent limit inception Ioc - 8 9 ADC Vout = 90% of Vout (nom) Output voltage trim range 10.0 10.0 11.0 11.0 15.0 15.0 % % Trim up Trim down Open sense voltage NA NA NA VDC No sense pins on this device Max Units Notes and Conditions CXA20-48S3V3 Model Protection and Control Features Typ CXA20-48S3V3 Model Efficiency Characteristic Symbol Min Typ Efficiency η 79.0 80.0 % Iout = 100% Iout (max), Vin = 48 VDC Efficiency η 78.0 79.0 % Iout = 50% Iout (max), Vin = 48 VDC 7 www.artesyn.com SXA10 Series | 10W DC/DC CXA20 Series | 20W DC/DC Isolated DC/DC converters CXA20-48S05 Model Input Characteristics Characteristic Symbol Input current - operating Min Typ Max Units Notes and Conditions Iin 0.50 0.51 ADC Vin = Vin (nom); Iout = Iout (max); Vo = Vo (nom) Input current - maximum Iin (max) 1.31 1.40 ADC Vin = Vin (min); Iout = Iout (max); Vo = nom Reflected ripple current Iin (ripple) 3 10 mA RMS Iout = Iout (max), measured with no external bypass capacitor Reflected ripple current Iin (ripple) 20 40 mA pk-pk Iout = Iout (max), measured with no external bypass capacitor Input capacitance - internal filter (all models) Cinput 1.5 µF Internal to converter (ceramic) CXA20-48S05 Model Electrical Characteristics - O/P Characteristic Symbol Min Typ Max Units Notes and Conditions Nominal set-point voltage Vout (nom) 4.925 5.00 5.075 VDC Vin = Vin (Nom); Iout = Iout (nom); T = 25˚C Total regulation band Vout 4.80 - 5.20 VDC For all line, static load and temperature until end of life Line regulation - 0.10 0.20 % Iout = Iout (nom) Vin (min) - Vin (max) Load regulation - 0.10 0.20 % Vin = Vin (Nom) Iout (min) - Iout (max) Temperature regulation - - 0.02 ±%/˚C Vin = Vin (nom), Iout = Iout (nom) 4.00 ADC 5.00 A RMS Output current continuous Iout Output current - short circuit Isc 0 3.30 Continuous, unit auto recovers from short, load resistance <20 mΩ Output voltage - noise 8 Vp-p 60 75 mV pk-pk Measurement bandwidth 20 MHz Vrms 9.5 20 mV RMS Measurement bandwidth 20 MHz See Application Note 107 for measurement set-up details CXA20 Series | 20W DC/DC Isolated DC/DC converters CXA20-48S05 Model Electrical Characteristics - O/P Characteristic Symbol Load transient response peak deviation Min Typ Max Units Notes and Conditions Vdynamic 0.5 2.0 % Peak deviation for 50% to 75% step load, di/dt = 100 mA/µsec Load transient response recovery Trecovery 100 300 µsec Settling time to within 1% of output set point voltage for 50% to 75% step load External load capacitance Cext 0 10,000 2,000 µF µF Vin = 18 to 36 VDC Vin = 36 to 75 VDC Characteristic Symbol Min Max Units Notes and Conditions Overvoltage clamp voltage Vov 6.67 7.67 VDC Non-latching Refer to Application Note 107 Overcurrent limit inception Ioc - 6.1 6.50 ADC Vout = 90% of Vout (nom) Output voltage trim range 10.0 10.0 11 11 13.0 13.0 % % Trim up Trim down Open sense voltage NA NA NA VDC No sense pins on this device Max Units Notes and Conditions CXA20-48S05 Model Protection and Control Features Typ CXA20-48S05 Model Efficiency Characteristic Symbol Min Typ Efficiency η 82.0 83.0 % Iout = 100% Iout (max), Vin = 48 VDC Efficiency η 81.0 82.0 % Iout = 50% Iout (max), Vin = 48 VDC 9 www.artesyn.com SXA10 Series | 10W DC/DC CXA20 Series | 20W DC/DC Isolated DC/DC converters CXA20-48S12 Model Input Characteristics Characteristic Symbol Input current - operating Min Typ Max Units Notes and Conditions Iin 0.50 0.52 ADC Vin = Vin (nom); Iout = Iout (max); Vo = Vo (nom) Input current - maximum Iin (max) 1.30 1.40 ADC Vin = Vin (min); Iout = Iout (max); Vo = nom Reflected ripple current Iin (ripple) 3 10 mA RMS Iout = Iout (max), measured with no external bypass capacitor Reflected ripple current Iin (ripple) 20 40 mA pk-pk Iout = Iout (max), measured with no external bypass capacitor Input capacitance - internal filter (all models) Cinput 1.5 µF Internal to converter (ceramic) CXA20-48S12 Model Electrical Characteristics - O/P Characteristic Symbol Min Typ Max Units Notes and Conditions Nominal set-point voltage Vout (nom.) 11.82 12.0 12.18 VDC Vin = Vin (Nom); Iout = Iout (nom); T = 25˚C Total regulation band Vout 11.52 - 12.48 VDC For all line, static load and temperature until end of life Line regulation - 0.10 0.20 % Iout = Iout (nom) Vin (min) - Vin (max) Load regulation - 0.10 0.20 % Vin = Vin (Nom) Iout (min) - Iout (max) Temperature regulation - - 0.02 ±%/˚C Vin = Vin (nom), Iout = Iout (nom) 1.66 ADC 2.50 A RMS Output current continuous Iout Output current - short circuit Isc 0.00 2.00 Continuous, unit auto recovers from short, load resistance <20 mΩ Output voltage - noise 10 Vp-p Vrms 60 11 100 20 mV pk-pk Measurement bandwidth 20 MHz mV RMS Measurement bandwidth 20 MHz See Application Note 107 for measurement set-up details CXA20 Series | 20W DC/DC Isolated DC/DC converters CXA20-48S12 Model Electrical Characteristics - O/P Characteristic Symbol Load transient response peak deviation Min Typ Max Units Notes and Conditions Vdynamic 0.5 2.0 % Peak deviation for 50% to 75% step load, di/dt = 100 mA/µsec Load transient response recovery Trecovery 100 300 µsec Settling time to within 1% of output set point voltage for 50% to 75% step load External load capacitance Cext 0 1,000 220 µF µF Vin = 18 to 36 VDC Vin = 36 to 75 VDC Characteristic Symbol Min Max Units Notes and Conditions Overvoltage clamp voltage Vov 14.25 15.75 VDC Non-latching Refer to Application Note 107 Overcurrent limit inception Ioc 2.7 3.20 ADC Vout = 90% of Vout (nom) 10 10 NA 11 11 NA 13 13 NA % % VDC Cannot trim up for Vin <20 V Trim down No sense pins on this device Max Units Notes and Conditions CXA20-48S12 Model Protection and Control Features Output voltage trim range Open sense voltage Typ CXA20-48S12 Model Efficiency Characteristic Symbol Min Typ Efficiency η 81.0 83.0 % Iout = 100% Iout (max), Vin = 48 VDC Efficiency η 79.0 81.0 % Iout = 50% Iout (max), Vin = 48 VDC 11 www.artesyn.com SXA10 Series | 10W DC/DC CXA20 Series | 20W DC/DC Isolated DC/DC converters CXA20-48D05 Model Input Characteristics Characteristic Symbol Input current - operating Min Typ Max Units Notes and Conditions Iin 0.50 0.51 ADC Vin = Vin (nom); Iout = Iout (max); Vo = Vo (nom) Input current - maximum Iin (max) 1.30 1.40 ADC Vin = Vin (min); Iout = Iout (max); Vo = nom Reflected ripple current Iin (ripple) 3 10 mA RMS Iout = Iout (max), measured with no external bypass capacitor Reflected ripple current Iin (ripple) 20 40 mA pk-pk Iout = Iout (max), measured with no external bypass capacitor Input capacitance - internal filter (all models) Cinput 1.5 µF Internal to converter (ceramic) CXA20-48D05 Model Electrical Characteristics - O/P Characteristic Symbol Min Typ Max Units Notes and Conditions Nominal set-point voltage Vout (1) 4.925 5.00 5.075 VDC Vout (2) 4.925 5.00 5.075 VDC Vin = Vin (Nom); Iout = Iout (nom); T = 25˚C Vin = Vin (Nom); Iout = Iout (nom); T = 25˚C Total regulation band Vout (1) Vout (2) 4.80 4.75 - 5.20 5.25 VDC VDC For all line, static load and temperature until end of life. Does not include cross regulation Line regulation Vout (1) - 0.10 0.20 % Vout (2) - 0.10 0.50 % Iout = Iout (nom); Vin (min) - Vin (max); positive output Iout = Iout (nom); Vin (min) - Vin (max); negative output Vout (1) - 0.10 0.20 % Vout (2) - 0.10 0.50 % Vout (1) - 0.10 0.20 % Vout (2) - 7.00 10.00 % Iout (1) = 100%, Iout (2) = 10% to 100% or Iout (2) = 100%, Iout (1) = 10% to 100% Vin = Vin (nom) 0.02 ±%/˚C Vin = Vin (nom), Iout = Iout (nom) 2.00 ADC Each output (See Note 7) Load regulation Cross regulation Temperature regulation Output current continuous 12 Iout 0 Vin = Vin (nom), positive output, Iout (1) = Iout (2) = 0% to 100% Vin = Vin (nom), negative output, Iout (1) = Iout (2) = 10% to 100% CXA20 Series | 20W DC/DC Isolated DC/DC converters CXA20-48D05 Model Electrical Characteristics - O/P Characteristic Symbol Output current - short circuit Isc Output voltage - noise Vp-p Vrms Load transient response peak deviation Min Typ Max Units Notes and Conditions 2.50 A RMS Continuous, unit auto recovers from short load resistance <20 mΩ between Vout1 (+) and Vout2 (-) 55 9 75 20 mV pk-pk Measurement bandwidth: 20 MHz mV RMS Measurement bandwidth 20 MHz See Application Note 107 for measurement set-up details Vdynamic 0.5 2.0 % Peak deviation for 50% to 75% Step load, di/dt = 100 mA/µsec Load transient response recovery Trecovery 100 300 µsec Settling time to within 1% of output set point voltage for 50% to 75% step load External load capacitance Cext 0 5,000 1,000 µF µF Vin = 18 to 36 VDC Vin = 36 to 75 VDC Characteristic Symbol Min Max Units Notes and Conditions Overvoltage clamp voltage Vov 6.67 7.67 VDC Non-latching, see Note 6 Refer to Application Note 107 Overcurrent limit inception Ioc 2.9 3.50 ADC Vout = 90% of Vout (nom), Iout (1) = Iout (2) CXA20-48D05 Model Protection and Control Features Typ Output voltage trim range 10.0 10.0 11 11 13.0 13.0 % % Trim up Trim down Open sense voltage NA NA NA VDC No sense pins on this device Max Units Notes and Conditions CXA20-48D05 Model Efficiency Characteristic Symbol Min Typ Efficiency η 82 84 % Iout = 100% Iout (max), Vin = 48 VDC Efficiency η 80 82 % Iout = 50% Iout (max), Vin = 48 VDC 13 www.artesyn.com SXA10 Series | 10W DC/DC CXA20 Series | 20W DC/DC Isolated DC/DC converters CXA20-48D12 Model Input Characteristics Characteristic Symbol Input current - operating Min Typ Max Units Notes and Conditions Iin 0.50 0.51 ADC Vin = Vin (nom); Iout = Iout (max); Vo = Vo (nom) Input current - maximum Iin (max) 1.32 1.40 ADC Vin = Vin (min); Iout = Iout (max); Vo = nom Reflected ripple current Iin (ripple) 3 10 mA RMS Iout = Iout (max), measured with no external bypass capacitor Reflected ripple current Iin (ripple) 20 40 mA pk-pk Iout = Iout (max), measured with no external bypass capacitor Input capacitance - internal filter (all models) Cinput 1.5 µF Internal to converter (ceramic) CXA20-48D12 Model Electrical Characteristics - O/P Characteristic Symbol Min Typ Max Units Notes and Conditions Nominal set-point voltage Vout (1) 11.82 12.0 12.18 VDC Vout (2) 11.82 12.0 12.18 VDC Vin = Vin (Nom); Iout = Iout (nom); T = 25˚C Vin = Vin (Nom); Iout = Iout (nom); T = 25˚C Total regulation band Vout 11.52 - 12.48 VDC For all line, static load and temperature until end of life Does not include cross regulation Line regulation Vout (1) - 0.10 0.20 % Vout (2) - 0.10 0.50 % Iout = Iout (nom); Vin (min) - Vin (max); positive output Iout = Iout (nom); Vin (min) - Vin (max); negative output Vout (1) - 0.10 0.20 % Vout (2) - 0.10 0.50 % Vout (1) - 0.10 0.20 % Vout (2) - 7.00 10.0 % Iout (1) = 100%, Iout (2) = 10% to 100% or Iout (2) = 100%, Iout (1) = 10% to 100% Vin = Vin (nom) 0.02 ±%/˚C Vin = Vin (nom), Iout = Iout (nom) 0.83 ADC Each output (See Note 7) Load regulation Cross regulation Temperature regulation Output current continuous 14 Iout 0 Vin = Vin (nom), positive output, Iout (1) = Iout (2) = 0% to 100% Vin = Vin (nom), negative output, Iout (1) = Iout (2) = 10% to 100% CXA20 Series | 20W DC/DC Isolated DC/DC converters CXA20-48D12 Model Electrical Characteristics - O/P Characteristic Symbol Output current - short circuit Isc Output voltage - noise Vp-p Vrms Load transient response peak deviation Min Typ Max Units Notes and Conditions 1.40 A RMS Continuous, unit auto recovers from short load resistance <20 mΩ between Vout1 (+) and Vout2 (-) 65 100 12 20 mV pk-pk Measurement bandwidth: 20 MHz mV RMS Measurement bandwidth 20 MHz See Application Note 107 for measurement set-up details Vdynamic 0.5 2.0 % Peak deviation for 50% to 75% step load, di/dt = 100 mA/µsec Load transient response recovery Trecovery 100 300 µsec Settling time to within 1% of output set point voltage for 50% to 75% step load External load capacitance Cext 0 500 100 µF µF Vin = 18 to 36 VDC Vin = 36 to 75 VDC Characteristic Symbol Min Max Units Notes and Conditions Overvoltage clamp voltage Vov 14.25 15.75 VDC Non-latching, see Note 6 See Application Note Overcurrent limit inception Ioc 1.4 1.60 ADC Vout = 90% of Vout (nom), Iout (1) = Iout (2) 10.0 11 13.0 % 10.0 11 13.0 % Trim up, cannot trim up for Vin <20V Trim down NA NA NA VDC No sense pins on this device Max Units Notes and Conditions CXA20-48D12 Model Protection and Control Features Output voltage trim range Open sense voltage Typ CXA20-48D12 Model Efficiency Characteristic Symbol Min Typ Efficiency η 82 84 % Iout = 100% Iout (max), Vin = 48 VDC Efficiency η 80 82 % Iout = 50% Iout (max), Vin = 48 VDC 15 www.artesyn.com SXA10 Series | 10W DC/DC CXA20 Series | 20W DC/DC Isolated DC/DC converters Vin > 60 Vin < 60 100% Rated Output Current (%) Rated Output Current (%) 100% 80% 75% 60% 40% 20% 0% 80% 60% 50% 40% 20% 0% -40˚C -20˚C 0˚C 20˚C 40˚C 60˚C 80˚C 100˚C -40˚C -20˚C 0˚C 20˚C 40˚C 60˚C 80˚C 100˚C Ambient Temperature (˚C) Ambient Temperature (˚C) Figure 1.1: Derating Curve Output Current vs Temperature S3V3 Natural Convection (<0.1m/s airflow) Figure 1.2: Derating Curve Output Current vs Temperature S05 Natural Convection (<0.1m/s airflow) Vin > 60 36 < Vin < 60 Vin < 36 Vin > 60 Vin < 60 100% 100% Rated Output Current (%) Rated Output Current (%) 60˚ 80% 60% 40% 20% -20˚C 0˚C 20˚C 40˚C 60˚C 80˚C 100˚C Figure 1.3: Derating Curve Output Current vs Temperature S12 Natural Convection (<0.1m/s airflow) Vin > 60 Vin < 60 Rated Output Current (%) 100% 80% 60% 50% 40% 20% 0% -20˚C 0˚C 20˚C 40˚C 60˚C 80˚C 100˚C Ambient Temperature (˚C) Figure 1.5: Derating Curve Output Current vs Temperature D12 Natural Convection (<0.1m/s airflow) 16 50% 40% 20% -40˚C -20˚C 0˚C 20˚C 40˚C 60˚C 80˚C 100˚C Ambient Temperature (˚C) Ambient Temperature (˚C) -40˚C 60% 0% 0% -40˚C 80% Figure 1.4: Derating Curve Output Current vs Temperature D05 Natural Convection (<0.1m/s airflow) CXA20 Series | 20W DC/DC Isolated DC/DC converters 85% 86% 84% S05 D05 S12 D12 82% 80% S3V3 78% 18V 28V 38V 48V 58V 68V Efficiency Vs Vin 17 Efficiency Efficiency 84% D05 D12 S12 SO5 83% 82% 81% 80% S3V3 79% -50˚C -25˚C 0˚C 25˚C 50˚C 75˚C 100˚C Efficiency Vs Temperature Figure 2: Typical Efficiency vs Vin Figure 3: Typical Efficiency vs Ambient Temperature Figure 4: Typical Power-up Characteristic S05 (Ch1 : Input V, Ch2 : Vo), Vin = 48V, Load = 4A, 2000µF Figure 5: Control On/Off Characteristic S05 (Ch1 : Control, Ch2 : Vo), Vin = 48V, Load = 4A, 2000µF Figure 6.1: Typical Transient Response of S3V3 Ch1 Vo, 20mVAC/div. Ch2 Io, 2A/div Figure 6.2: Typical Transient Response of S05 Ch1 Vo, 20mVAC/div. Ch2 Io, 1A/div www.artesyn.com SXA10 Series | 10W DC/DC CXA20 Series | 20W DC/DC Isolated DC/DC converters 18 Figure 6.3: Typical Transient Response of S12 Ch1 Vo, 50mVAC/div. Ch2 Io, 0.5A/div Figure 6.4: Typical Transient Response of D05 Ch1 Vo2, 50mVAC/div. R1 Vo1 50mVAC/div. Ch2 Io, 1A/div Figure 6.5: Typical Transient Response of D12 Ch1 Vo2, 50mVAC/div. R1 Vo1 50mVAC/div. Ch2 Io, 0.5A/div Figure 7.1: Typical Ripple and Noise S3V3 on Test Card at Nominal Conditions Figure 7.2: Typical Ripple and Noise S05 on Test Card at Nominal Conditions Figure 7.3: Typical Ripple and Noise S12 on Test Card at Nominal Conditions CXA20 Series | 20W DC/DC Isolated DC/DC converters Figure 7.4: Typical Ripple and Noise D05 on Test Card at Nominal Conditions Figure 7.5: Typical Ripple and Noise D12 on Test Card at Nominal Conditions L100 NC NC S1 F1 F2 S2 NC F3 S3 S1 F1 S2 F2 L100 Q102 Figure 8.1: Hot Spot Locations on S3V3, S05 and S12 Models 19 www.artesyn.com Figure 8.2: Hot Spot Location on D05 and D12 Models CXA20 Series | 20W DC/DC Isolated DC/DC converters 0.02 ±0.004 (0.50 ±0.1) 0.413 (10.50) MAX. OPEN FRAME HEIGHT STAND-OFFS 4 PLACES Ø0.040 ±0.004 (Ø1.02 ±0.1) 0.14 ±0.02 (3.60 ±0.5) 2.00 ±0.02 (50.80 ±0.5) 1.80 (45.72) 5 0.70 (17.78) 2.54 (0.10) 0.20 (5.08) 1.60 ±0.02 (40.64 ±0.5) 1 BOTTOM VIEW 2 0.60 (15.24) 0.50 (12.70) 6 7 0.30 (7.62) 0.70 (17.78) 8 4 ALL DIMENSIONS IN INCHES (mm) General tolerance ±0.010 (±0.25) unless otherwise specified Pin Connections Pin Number Single Output Dual Output 1 2 3 4 5 6 7 8 Vin+ VinNo Pin Remote On/Off No Pin Vo+ VoTrim Vin+ VinNo Pin Remote On/Off Vo+ Common VoTrim Figure 9: Dimensions and Pinout 20 CXA20 Series | 20W DC/DC Isolated DC/DC converters Note 1 Hot spot temperature is defined as the highest temperature measured at any one of the specified temperature hotspot checkpoints. See Figure 8: Hotspot temperature check points. Note 2 The control pin is referenced to Vin-. Note 3 The CXA20 is supplied as standard with active high logic. Control input pulled low: unit disabled. Control input floating: unit enabled. The unit can be supplied with active low logic. Note 4 Parallel operation of multiple units is not recommended. If parallel operation is required outputs should be decoupled by diodes. Control inputs of multiple units should not be connected but decoupled by diodes or transistors. Note 5 Thermal reference set up: Unit mounted centrally on a 200mm x 240 mm testboard. Testboard is mounted vertically in a fully enclosed 300mm x 300mm x 300mm testbox. Ambient temperature measured at the bottom of the textbox. Altitude sea level. Note 6 On the dual output models OVP protection is on positive outputs only. See Application Note for details. Note 7 For balanced loads. In the case of unbalanced loads a minimum load of 10% is required on each output to maintain cross regulation. CAUTION: Hazardous internal voltages and high temperatures. Ensure that unit is accessible only to trained personnel. The user must provide the recommended fusing in order to comply with safety approvals. 21 www.artesyn.com CXA20 Series | 20W DC/DC Isolated DC/DC converters NORTH AMERICA e-mail: [email protected] ☎ 800 769 7274 ☎+ 508 628 5600 EUROPEAN LOCATIONS e-mail: [email protected] IRELAND ☎+ 353 24 93130 AUSTRIA ☎+ 43 1 80150 FAR EAST LOCATIONS e-mail: [email protected] HONG KONG ☎+ 852 2699 2868 DS_CXA20_20000119.PDF Data Sheet Artesyn Technologies® 2000 The information and specifications contained in this data sheet are believed to be correct at time of publication. However, Artesyn Technologies accepts no responsibility for consequences arising from printing errors or inaccuracies. Specifications are subject to change without notice. No rights under any patent accompany the sale of any such product(s) or information contained herein. 22 www.artesyn.com