NON-ISOLATED DC/DC CONVERTERS 10.8 Vdc - 13.2 Vdc Input 0.5 Vdc - 1.6 Vdc/120 A Outputs Bel Power Inc., a subsidiary of Bel Fuse Inc. Apr. 01, 2010 GRND-C2A160 RoHS Compliant Rev.B Features • Non-Isolated • Input Under Voltage Lockout • Fixed Frequency • SCP/OCP • High Efficiency • Remote On/Off • 8 bit VID Digital Voltage Programming • 2-Wire Remote Sense • Class 1, Category 2, Non-Isolated DC/DC Converter (refer to IPC-9592) Applications • Networking • Computers and peripherals • Telecommunications Description The GRND-C2A160 is a non-isolated step down dc/dc converter providing up to 120 A of output current and designed to be compatible with Intel VRM11.1 requirements. Standard features include current monitor, remote on/off, over current protection, remote sense, 8 bit VID digital voltage programming and a power good signal. This product also makes use of selectable adaptive positioning to improve transient response performance. These products may be used almost anywhere low-voltage silicon is being employed and a nominal 12 Vdc source is available. Typical applications include file servers, work stations and other computing applications. Part Selection Output Voltage Input Voltage 0.5 - 1.6 Vdc 10.8 - 13.2 Vdc Max. Output Current 120 A Max. Output Power 192 W Typical Efficiency 84% Model Number Active High GRND-C2A160 Note: Add “G” suffix at the end of the model number to indicate “Tray Packaging”. Part Number Explanation G R ND – C2 A 16 0 1 2 3 4 5 6 7 1---Goldfinger 2---RoHS 6, change “R” to “7” means RoHS 5 3---Series name 4---Series code 5---Wide input range (10.8-13.2V) 6---Wide output range (0.5-1.6V) 7---Suffix Bel Fuse Inc. 206 Van Vorst Street, Jersey City, NJ 07302 • Tel 201-432-0463 • Fax 201-432-9542 • www.belfuse.com NON-ISOLATED DC/DC CONVERTERS 10.8 Vdc - 13.2 Vdc Input 0.5 Vdc - 1.6 Vdc/120 A Outputs Bel Power Inc., a subsidiary of Bel Fuse Inc. Apr. 01, 2010 Absolute Maximum Ratings Parameter Min Typ Max Notes Input Voltage (continuous) -0.3 V - 15 V Remote On/Off -0.3 V - 5V Ambient Temperature 0 °C - 65 °C Storage Temperature -55 °C - 125 °C Note: Ratings used beyond the maximum ratings may cause a reliability degradation of the converter or may permanently damage the device. Input Specifications Parameter Min Typ Max 10.8 V 12 V 13.2 V Input Current (full load) - - 30 A Input Current (no load) - 600 mA 800 mA 80 mA 100 mA - 10 mA 25 mA - 80 mA 150 mA - 25 mA 50 mA I t Inrush Current Transient - - 5A s Turn-on Voltage Threshold 9.4 V 10 V 10.6 V Under Voltage Threshold 8.0 V 9.0 V 10 V Input Voltage Input Current (no load) Remote Off Input Current Input Reflected Ripple Current (pk-pk) Input Reflected Ripple Current (rms) 2 Notes With simulated source impedance of 100 nH, 5 Hz to 20 MHz; use two 1000uF/25 V electrolytic cap with ESR = 0.03 ohm max at 100 kHz. 2 Note: All specifications are typical at nominal input, full load at 25 °C unless otherwise stated Output Specifications Parameter Min Typ Max 1.27 V 1.285 V 1.3 V Adaptive Positioning (Droop Impedance) - 0.8 mOhm - Line Regulation - - ±8 mV Regulation Over Temperature (0deg.C-65deg.C) - - ±8 mV 90 A Thermal design 0 - 120 A Peak current rating 125 A - 155 A Short Circuit Surge Transient - - 5A s Ripple and Noise (rms) - 3 mV 5 mV Ripple and Noise (pk-pk) - 6 mV 10 mV Output Voltage Set Point Output Current Current Limit Threshold 0 Notes VID=0X32, Iout=0 2 Measured with 3*330uF/6mOhm ESR SP-CAP, and 10*22uF/0805 + 28*10uF/1206 ceramic capacitors on output Bel Fuse Inc. 206 Van Vorst Street, Jersey City, NJ 07302 • Tel 201-432-0463 • Fax 201-432-9542 • www.belfuse.com NON-ISOLATED DC/DC CONVERTERS 10.8 Vdc - 13.2 Vdc Input 0.5 Vdc - 1.6 Vdc/120 A Outputs Bel Power Inc., a subsidiary of Bel Fuse Inc. Apr. 01, 2010 Output Specifications (continued) Parameter Output Ripple and Noise(pk-pk) under worst case Min Typ Max - - 50 mV Rise time - - 5 mS Turn on Time - 2.5 mS 5 mS Overshoot at Turn on - - 1% Output Capacitance 1490 uF - Notes over all operating input voltage, load and ambient temperature condition 3*330uF/6mOhm ESR SP-CAP, and 10*22uF/0805 + 28*10uF/1206 ceramic capacitors. Consult factory regarding external capacitance outside of this range - Transient Response Overshoot 50% ~ 100% Max Load - - 50 mV - - 25 uS Overshoot - - 50 mV Settling Time - - 25 uS Settling Time 100% ~ 50% Max Load All di/dt=300A/us, Vin=12Vdc, Ta=25°C, with typical cap bank on the output. Note: All specifications are typical at nominal input, full load at 25 °C unless otherwise stated. General Specifications Parameter Efficiency Min Typ Max 82% 84% - - 400 kHz - Switching Frequency FIT Notes Vin=12 V, full load Calculated Per Bell Core SR-332 (Vin=12 V, Io=80%load, Ta = 25 °C, 9 FIT=10 /MTBF) TBD Dimensions Inches (L × W × H) Millimeters (L × W × H) Weight 3.80 x 1.20 x 0.70 96.52 x 30.48 x 17.78 - 50 g - Note: All specifications are typical at 25 °C unless otherwise stated. Control Specifications Parameter Min Typ Max Notes -0.3 V - 0.4 V 1V - 5V The remote on/off pin open, Unit On. 0 mA - 1 mA Remote On/Off Signal Low (Unit Off) Signal High (Unit On) Current Sink Active High Bel Fuse Inc. 206 Van Vorst Street, Jersey City, NJ 07302 • Tel 201-432-0463 • Fax 201-432-9542 • www.belfuse.com NON-ISOLATED DC/DC CONVERTERS 10.8 Vdc - 13.2 Vdc Input 0.5 Vdc - 1.6 Vdc/120 A Outputs Bel Power Inc., a subsidiary of Bel Fuse Inc. Apr. 01, 2010 Efficiency Data 90.00% EFFICIENCY 85.00% 80.00% 75.00% 10.8 V 70.00% 12V 65.00% 13.2V 60.00% 55.00% 50.00% 12.00 30.00 60.00 90.00 120.00 OUTPUT CURRENT(A) VID=0X32 Thermal Derating Curves Bel Fuse Inc. 206 Van Vorst Street, Jersey City, NJ 07302 • Tel 201-432-0463 • Fax 201-432-9542 • www.belfuse.com NON-ISOLATED DC/DC CONVERTERS 10.8 Vdc - 13.2 Vdc Input 0.5 Vdc - 1.6 Vdc/120 A Outputs Bel Power Inc., a subsidiary of Bel Fuse Inc. Apr. 01, 2010 Ripple and Noise Waveform Ripple and noise at full load, 12V input, VID=0X32 and Ta=25 degC Transient Response Waveforms 30 A to 90 A Load @ VID=0X32 90 A to 30 A Load @ VID=0X32 Bel Fuse Inc. 206 Van Vorst Street, Jersey City, NJ 07302 • Tel 201-432-0463 • Fax 201-432-9542 • www.belfuse.com NON-ISOLATED DC/DC CONVERTERS 10.8 Vdc - 13.2 Vdc Input 0.5 Vdc - 1.6 Vdc/120 A Outputs Apr. 01, 2010 Bel Power Inc., a subsidiary of Bel Fuse Inc. Startup & Shutdown Rise time Test Condition: VID=0x32, Iout=120A Startup time Startup from on/off Startup from on/off Ch1: Vo, Ch3: on/off Ch1: Vo, Ch3: on/off Test Condition: VID=0x32, Iout=0A Test Condition: VID=0x32, Iout=120A Bel Fuse Inc. 206 Van Vorst Street, Jersey City, NJ 07302 • Tel 201-432-0463 • Fax 201-432-9542 • www.belfuse.com NON-ISOLATED DC/DC CONVERTERS 10.8 Vdc - 13.2 Vdc Input 0.5 Vdc - 1.6 Vdc/120 A Outputs Apr. 01, 2010 Bel Power Inc., a subsidiary of Bel Fuse Inc. Startup & Shutdown (continued) Shutdown Test Condition: VID=0x32, Iout=0A Over Current Protection To provide protection in a fault output overload condition, the module is equipped with internal current-limiting circuitry and can endure current limiting for a few mili-seconds. If the overcurrent condition persists beyond a few milliseconds, the module will shut down into hiccup mode and restart once every 400mS. The module operates normally when the output current goes into specified range. The typical average output current is 5A during hiccup. Bel Fuse Inc. 206 Van Vorst Street, Jersey City, NJ 07302 • Tel 201-432-0463 • Fax 201-432-9542 • www.belfuse.com NON-ISOLATED DC/DC CONVERTERS 10.8 Vdc - 13.2 Vdc Input 0.5 Vdc - 1.6 Vdc/120 A Outputs Bel Power Inc., a subsidiary of Bel Fuse Inc. Apr. 01, 2010 Over Temperature Protection L3 is the hottest component R74 is the thermal sense component Input Under-voltage Lockout Input Current Under-voltage Lockout Voltage Falling Voltage Rising V1 V2 V1=8.5V V2=10V Input Voltage (V) Bel Fuse Inc. 206 Van Vorst Street, Jersey City, NJ 07302 • Tel 201-432-0463 • Fax 201-432-9542 • www.belfuse.com NON-ISOLATED DC/DC CONVERTERS 10.8 Vdc - 13.2 Vdc Input 0.5 Vdc - 1.6 Vdc/120 A Outputs Bel Power Inc., a subsidiary of Bel Fuse Inc. Apr. 01, 2010 Mechanical Outline Pin Connections Row A Pin Function Pin Row B Function Pin Function Pin Function 1 VIN- 15 VO+ 40 VO+ 54 VIN+ 2 VIN- 16 VO- 39 VO- 53 VIN+ 3 VIN- 17 VO- 38 VO- 52 VIN+ 4 VID4 18 VO- 37 VO- 51 VID3 5 VID2 19 VO+ 36 VO+ 50 VID1 6 VID0 20 VO+ 35 VO+ 49 VID5 7 VO_SEN+ 21 VO+ 34 VO+ 48 VO_SEN- 8 VR_Ready 22 VO- 33 VO- 47 VR_hot# 9 OUTEN 23 VO- 32 VO- 46 VID7 10 IMON 24 VO- 31 VO- 45 PSI 11 VID6 25 VO+ 30 VO+ 44 VRM_pres#0 12 VRM_pres#2 26 VO+ 29 VO+ 43 VRM_pres#1 13 VO+ 27 VO+ 28 VO+ 42 VO+ 14 VO+ 41 VO+ Note: 1) Undimensioned components are shown for visual reference only. 2) All dimensions in inches (mm); Tolerances: x.xx +/-0.02 in. (x.x +/-0.5mm) x.xxx +/-0.010 in. (x.xx +/-0.25mm). Bel Fuse Inc. 206 Van Vorst Street, Jersey City, NJ 07302 • Tel 201-432-0463 • Fax 201-432-9542 • www.belfuse.com NON-ISOLATED DC/DC CONVERTERS 10.8 Vdc - 13.2 Vdc Input 0.5 Vdc - 1.6 Vdc/120 A Outputs Bel Power Inc., a subsidiary of Bel Fuse Inc. Apr. 01, 2010 Signal Definitions Vin+ VRM Input Voltage Vin- VRM Input Ground VID0, VID1, VID2, VID3, VID4, VID5, VID6, VID7 Logic level inputs used to set the output voltage, refer to VID table. Connect VID0 thru VID7 pins to open-drain outputs with external pull-up resistors. Valid logic low is -0.3V to 0.4V, valid logic high level is 0.8V to 5.0V. VO_SEN+, VO_SEN- Remote voltage sense lines. Connect these at the point of load, to VO+ and VOrespectively. VR_Ready Open drain output signal indicating that the start-up sequence is complete output voltage has moved to the programmed VID value. VR_HOT# Open-drain output signal, pulled actively low indicating a thermal event has been detected on the VRM. OUTEN IMON PSI VRM_pres#1, VRM_pres#2, VRM_pres#3 Logic level input used to enable the converter when high. Valid logic low is -0.3V to 0.4V, valid logic high level is 1.0V to 5.0V Analog voltage signal representing the output load current Logic level input, indicates when the CPU is in a low power state VRM11.1 presence indicator(s) VO+ VRM Output Voltage VO- VRM Output Ground Bel Fuse Inc. 206 Van Vorst Street, Jersey City, NJ 07302 • Tel 201-432-0463 • Fax 201-432-9542 • www.belfuse.com NON-ISOLATED DC/DC CONVERTERS 10.8 Vdc - 13.2 Vdc Input 0.5 Vdc - 1.6 Vdc/120 A Outputs Bel Power Inc., a subsidiary of Bel Fuse Inc. Apr. 01, 2010 VID CODES (VRM11.0 CODES) HEX Vout HEX Vout HEX Vout HEX Vout (VID6 - VID0) 0 0 0 1 0 2 0 3 0 4 0 5 0 6 0 7 0 8 0 9 0 A 0 B 0 C 0 D 0 E 0 F 1 0 1 1 1 2 1 3 1 4 1 5 1 6 1 7 1 8 1 9 1 A 1 B 1 C 1 D 1 E 1 F 2 0 2 1 2 2 2 3 2 4 2 5 2 6 2 7 2 8 2 9 2 A 2 B 2 C 2 D 2 E 2 F (VDC) OFF OFF 1.60000 1.59375 1.58750 1.58125 1.57500 1.56875 1.56250 1.55625 1.55000 1.54375 1.53750 1.53125 1.52500 1.51875 1.51250 1.50625 1.50000 1.49375 1.48750 1.48125 1.47500 1.46875 1.46250 1.45625 1.45000 1.44375 1.43750 1.43125 1.42500 1.41875 1.41250 1.40625 1.40000 1.39375 1.38750 1.38125 1.37500 1.36875 1.36250 1.35625 1.35000 1.34375 1.33750 1.33125 1.32500 1.31875 (VID7 - VID0) 3 0 3 1 3 2 3 3 3 4 3 5 3 6 3 7 3 8 3 9 3 A 3 B 3 C 3 D 3 E 3 F 4 0 4 1 4 2 4 3 4 4 4 5 4 6 4 7 4 8 4 9 4 A 4 B 4 C 4 D 4 E 4 F 5 0 5 1 5 2 5 3 5 4 5 5 5 6 5 7 5 8 5 9 5 A 5 B 5 C 5 D 5 E 5 F (VDC) 1.31250 1.30625 1.30000 1.29375 1.28750 1.28125 1.27500 1.26875 1.26250 1.25625 1.25000 1.24375 1.23750 1.23125 1.22500 1.21875 1.21250 1.20625 1.20000 1.19375 1.18750 1.18125 1.17500 1.16875 1.16250 1.15625 1.15000 1.14375 1.13750 1.13125 1.12500 1.11875 1.11250 1.10625 1.10000 1.09375 1.08750 1.08125 1.07500 1.06875 1.06250 1.05625 1.05000 1.04375 1.03750 1.03125 1.02500 1.01875 (VID7 - VID0) 6 0 6 1 6 2 6 3 6 4 6 5 6 6 6 7 6 8 6 9 6 A 6 B 6 C 6 D 6 E 6 F 7 0 7 1 7 2 7 3 7 4 7 5 7 6 7 7 7 8 7 9 7 A 7 B 7 C 7 D 7 E 7 F 8 0 8 1 8 2 8 3 8 4 8 5 8 6 8 7 8 8 8 9 8 A 8 B 8 C 8 D 8 E 8 F (VDC) 1.01250 1.00625 1.00000 0.99375 0.98750 0.98125 0.97500 0.96875 0.96250 0.95625 0.95000 0.94375 0.93750 0.93125 0.92500 0.91875 0.91250 0.90625 0.90000 0.89375 0.88750 0.88125 0.87500 0.86875 0.86250 0.85625 0.85000 0.84375 0.83750 0.83125 0.82500 0.81875 0.81250 0.80625 0.80000 0.79375 0.78750 0.78125 0.77500 0.76875 0.76250 0.75625 0.75000 0.74375 0.73750 0.73125 0.72500 0.71875 (VID7 - VID0) 9 0 9 1 9 2 9 3 9 4 9 5 9 6 9 7 9 8 9 9 9 A 9 B 9 C 9 D 9 E 9 F A 0 A 1 A 2 A 3 A 4 A 5 A 6 A 7 A 8 A 9 A A A B A C A D A E A F B 0 B 1 B 2 F E F F (VDC) 0.71250 0.70625 0.70000 0.69375 0.68750 0.68125 0.67500 0.66875 0.66250 0.65625 0.65000 0.64375 0.63750 0.63125 0.62500 0.61875 0.61250 0.60625 0.60000 0.59375 0.58750 0.58125 0.57500 0.56875 0.56250 0.55625 0.55000 0.54375 0.53750 0.53125 0.52500 0.51875 0.51250 0.50625 0.50000 OFF OFF Bel Fuse Inc. 206 Van Vorst Street, Jersey City, NJ 07302 • Tel 201-432-0463 • Fax 201-432-9542 • www.belfuse.com NON-ISOLATED DC/DC CONVERTERS 10.8 Vdc - 13.2 Vdc Input 0.5 Vdc - 1.6 Vdc/120 A Outputs Bel Power Inc., a subsidiary of Bel Fuse Inc. Apr. 01, 2010 Revision History Date Revision Changes Detail Approval 1. Change to Bel new datasheet format; remove “Preliminary”. 2. In Absolute Maximum Ratings: 1)add remote on/off voltage; 2)update Ambient and storage temperature 3. Input spec: 1)update turn off voltage 2010-4-1 B 4. Output spec: 1)add load and temperature regulation; 2)add short circuit surge transient; 3)add rise time; 4)update output current limit Jack Fan 5. Update efficiency curve, add thermal derating curve, add startup and shutdown figures, add OCP, OTP and UVLO figure 6. Add Signal Definitions and VID CODES. RoHS Compliance Complies with the European Directive 2002/95/EC, calling for the elimination of lead and other hazardous substances from electronic products. ©2010 Bel Fuse Inc. Specifications subject to change without notice. 040110 CORPORATE FAR EAST EUROPE Bel Fuse Inc. 206 Van Vorst Street Jersey City, NJ 07302 Tel 201-432-0463 Fax 201-432-9542 www.belfuse.com Bel Fuse Ltd. 8F/ 8 Luk Hop Street San Po Kong Kowloon, Hong Kong Tel 852-2328-5515 Fax 852-2352-3706 www.belfuse.com Bel Fuse Europe Ltd. Preston Technology Management Centre Marsh Lane, Suite G7, Preston Lancashire, PR1 8UD, U.K. Tel 44-1772-556601 Fax 44-1772-888366 www.belfuse.com