G2PW1V860 BEL | Alldatasheet

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Technical content

Bel Power Inc. 155 Flanders Road, Westborough, MA 01581 • Tel 508-870-9775 • Fax 508-870-9796 • www.belpower.com ©2006 Bel Fuse Inc. Specifications subject to change without notice. 11.06 POWER PRODUCTS PISCES II DC/DC CONVERTERS G2PW1V860 48V Input – 1.8VDC – 60A Output † @ 60˚ C rise heat sink to ambient ‡ @ 300'/min. Typical Characteristics

  • Output setpoint accuracy: ± 1%
  • Load regulation: ± 0.2%
  • Line regulation: ± 0.2%
  • Regulation over line, load, and temperature: ± 2%
  • Low output ripple
  • Output trim ** T (Tuned Model) Option Designed for higher di/dt and ∆l applications, the transient response has been modified to take advantage of the capacitance on the customer’s PCB. This unit requires a minimum load capacitance of 5600µF with an impedance magnitude of less than 0.005Ω at 15kHz. It offers a minmum 3X improvement in the peak response compared to a standard unit. Consult factory. Typical Thermal Performance Part Number Height Natural Convection Power Dissipation† Forced Convection Thermal Resistance‡ 001 0.25" 5W 5.8˚ C/W 002 0.50" 7W 3.2˚ C/W 003 1.00" 11W 2.0˚ C/W 004 0.13" TBD TBD 005 0.70" TBD TBD Pisces II Heat Sink Part Numbers Example Part Number: (All options) G2PW1V860 PSRT 00X Part Number Options: Positive Logic Version Optional Pin Lengths E = 0.18" M = 0.145" S = 0.12" Heat Sink Ready Tuned Model Heat Sink Control Functions page 1 G2PW1V860 – 1/4 Brick Pisces II Series

Ordering Information

  • Industry standard pinout and footprint
  • Very low dissipation
  • No heat sink required for most applications
  • Low profile, 0.38"
  • High efficiency: 90% at 1.8V, 60A; 91% at 1.8V, 30A
  • Very low common-mode noise for a commercial DC/DC converter
  • Two-stage input filter
  • Constant switching frequency
  • Remote sense, wide trim range
  • Single board design, very low parts count
  • Optional baseplate or low profile heat sink for improved thermal performance
  • Header with M3 metal inserts for mechanical connection to PCB
  • Uses patented power supply control and architecture
  • Microprocessor controlled
  • Primary-side enable, choice of logic Protection Features
  • Over temperature protection
  • Over voltage protection
  • Over current protection
  • Over/Under input voltage protection Standard Model Number Input Voltage Output Voltage Max Current G2PW1V860* 48V 1.8V 60A * Options: P = Positive Logic Version; High = On R = Heat Sink Ready T = Tuned model**

©2006 Bel Fuse Inc. Specifications subject to change without notice. 11.06 POWER PRODUCTS PISCES II DC/DC CONVERTERS G2PW1V860 48V Input – 1.8VDC – 60A Output Bel Power Inc. 155 Flanders Road, Westborough, MA 01581 • Tel 508-870-9775 • Fax 508-870-9796 • www.belpower.com page 2 Input Specifications Parameter Min Typical Max Units Operating Input Voltage 36 48 75 VDC Input Current 6 A Input Capacitance 4 µF Input Hysteresis, Low Line 2 VDC VIN = 48VDC, TA@25˚ C, 300 LFM Airflow, VOUT = 1.8VDC, IOUT = Full load unless otherwise noted. Available output power depends on ambient temperature and good thermal management. (See application graphs for limits.) 1. During short circuit, converter will shut down and attempt to restart once per second. The average current during this condition will be very low and the device can be safely left in this condition continuously. Output Specifications Parameter Min Typical Max Units Regulation Over Line, Load & Temperature 98 102 %VNOM Voltage Ripple 25 mV RMS Voltage Ripple, 20MHz BW 85 mV P–P Current Range 0 60 A Current Limit Inception 103 140 %IOUT Short Circuit Current, Peak1 90 A Output Transient Response, 50% to 75% Load Change, 1A/µsec 5 %VOUT Settling Time to ± 1% 200 µS Turn-on Time to 98% Vnom 35 mS Output Overshoot at Turn-on 0 %VOUT Trim Range 70 110 %VOUT Over Voltage Protection, Latching 130 %VOUT

Bel Power Inc. 155 Flanders Road, Westborough, MA 01581 • Tel 508-870-9775 • Fax 508-870-9796 • www.belpower.com ©2006 Bel Fuse Inc. Specifications subject to change without notice. 11.06 POWER PRODUCTS PISCES II DC/DC CONVERTERS G2PW1V860 48V Input – 1.8VDC – 60A Output page 3 Isolation Specifications Parameter Min Typical Max Units Isolation Test Voltage, Input/Output (Basic) 2250 VDC Isolation Test Voltage, Input/Case 2000 VDC Isolation Test Voltage, Output Case 500 VDC Isolation Resistance 10 MΩ 2. PCB less than 130˚ C.

Features

Parameter Min Typical Max Units Over Temperature Protection, Thermal Sensor, Latching2 110 ˚ C Switching Frequency, Fixed 250 kHz General Specifications Operating Temperature -40˚ C to + 100˚ C Storge Temperature -55˚ C + 125˚ C Relative Humidity 10% to 95% RH, Non-condensing Vibration 2 to 9 Hz, 3mm disp., 9 to 200 Hz, 1g Material Flammability UL V-0 Weight 35 grams MTBF Telcordia (Bellcore) 1.6 million hours Approvals and Standards UL and c-UL Recognized Component, TUV, UL60950, CSA 22.2 No. 950, IEC/EN 60950 EMC Characteristics: Designed to meet emission and immunity requirements per EN55022, CISPR 22, Class B, and CISPR 24. An external fuse shall be used to comply with the requirements.

©2006 Bel Fuse Inc. Specifications subject to change without notice. 11.06 POWER PRODUCTS PISCES II DC/DC CONVERTERS G2PW1V860 48V Input – 1.8VDC – 60A Output Bel Power Inc. 155 Flanders Road, Westborough, MA 01581 • Tel 508-870-9775 • Fax 508-870-9796 • www.belpower.com page 4 Application Notes CoolConverter™ Bel Power’s Proprietary CoolConverter™

  • Patented single-stage power conversion architecture, control and magnetic design allow unprecedented power density and efficiency in an isolated power supply. Protection and Control Valid Input Voltage Range The converter measures the input voltage and will not allow operation outside of the input voltage specification. As shown by the graphs, hysteresis is added to both the high and low voltage to prevent the converter from turning on and off repeatedly when the voltage is held near either voltage extreme. At low line, this assures the maximum input current is not exceeded; at high line, this assures the semiconductor devices in the converter are not damaged by excessive voltage stress. ON/OFF Logic Option The ON/OFF control logic can be either Negative (standard) or Positive to enable the converter. For Negative logic, the ON/OFF pin is brought to below 1.0V with respect to the –INPUT pin to enable the converter. The pull-down must be able to sink 100µA. For Positive logic, the ON/OFF pin is brought to greater than 4.0V with respect to the –INPUT pin and be limited to less than 10V. To request the Positive logic version, add the suffix (P) to the standard part number. The ON/OFF pin has a built-in pull-up resistor of approximately 100kΩ to +5V. Output Over Voltage Protection The output voltage is constantly monitored by the microprocessor with a redundant secondary-side measurement circuit that both shuts down the duty cycle and triggers the microprocessor to shut down. If the output voltage exceeds the over voltage specification, the microprocessor will latch the converter off. To turn the converter on required either cycling the ON/OFF pin or power to the converter. This advanced feature prevents the converter from damaging the load if there is a converter failure or application error. If non- latching is required, consult factory.
  • An advanced microcontroller reduces parts count while adding features, performance and flexibility in the design.
  • Low common-mode noise results from lower capacitance in the transformer from balanced winding design. Under Voltage Hysteresis 30 34 37 Input Voltage (V) Output Voltage (V) 3632 33 3531 Over Voltage Hysteresis 76.5 78.5 80.5 Input Voltage (V) Output Voltage (V) 79.577.5 78 807977

Bel Power Inc. 155 Flanders Road, Westborough, MA 01581 • Tel 508-870-9775 • Fax 508-870-9796 • www.belpower.com ©2006 Bel Fuse Inc. Specifications subject to change without notice. 11.06 POWER PRODUCTS PISCES II DC/DC CONVERTERS G2PW1V860 48V Input – 1.8VDC – 60A Output page 5 Protection and Control Thermal Shutdown The printed circuit board temperature is measured using a semiconductor sensor. If the maximum rated temperature is exceeded, the converter is latched off. To re-enable the converter requires cycling the ON/OFF pin or power to the converter. If non-latching is required, consult factory. Control Options As the behavior of the circuit is determined by firmware in the microcontroller, specific requirements, such as:

  • non-latching thermal protection
  • custom valid input voltage range
  • controlled delay from initiating an ON/OFF signal for power sequencing can be accomplished with no change to hardware. The standard behavior was chosen based on system design experience, but customers may have their own requirements. Please contact Bel Power for any special needs. Remote Sense The output voltage is regulated at the point where the sense pins connect to the power output pins. Total sense compensation should not exceed 0.4V or 10% of Vout, whichever is greater. Safety An external input fuse must always be used to meet these safety requirements. External Output Trimming Trim To trim the output voltage higher, connect the required trim resistor from the Trim pin to the +Sense pin. To trim the output voltage lower, connect the required trim resistor from the Trim pin to the –Sense pin. CoolConverter™ Trim-down + Sense Trim – Sense Increase in Output Voltage (%) 1000 100 0 1 2 3 4 5 6 7 8 9 1 0 Trim Resistance (kΩ) 1.8V Trim-up Decrease in Output Voltage (%) 1000 100 0 1 2 3 4 5 6 7 8 9 10 Trim Resistance (kΩ) Trim-down RTRIM-UP = 1.8 (100+∆%) _ (100+2∆%) RTRIM-DOWN = Trim-up

©2006 Bel Fuse Inc. Specifications subject to change without notice. 11.06 POWER PRODUCTS PISCES II DC/DC CONVERTERS G2PW1V860 48V Input – 1.8VDC – 60A Output Bel Power Inc. 155 Flanders Road, Westborough, MA 01581 • Tel 508-870-9775 • Fax 508-870-9796 • www.belpower.com page 6 Efficiency DataEfficiency 0 20 60 Output Current (A) Efficiency (%) 36V Vin 48V Vin 75V Vin 4010 5030 Power Dissipation 0 20 3 0 4 0 6050 Output Current (A) Power Dissipation (W) 36V Vin 48V Vin 75V Vin Start Up 1) Vout 500mV/div 4mS/div 2) Iout 10A/div 3) Enable 5V/div CH1 CH2 CH3 Voltage Ripple 1) Vout 20mV/div 2µS/div 10µF ext cap 2MHz BW Transient Response 1) Vout 200mV/div 200µS/div 2) Iout 10A/div CH2 CH1 Line/Load Regulation 1.81 1.80 1.79 1.78 1.77 0 1 0 2 0 Output Current (A) Output Voltage (V) 36V Vin 48V Vin 75V Vin 30 40 Setpoint Accuracy 0.3000% Line Regulation 0.0201% Load Regulation 0.0134% Line & Load Regulation 0.0234% 50 60 Power Dissipation Start Up Voltage Ripple Transient ResponseLine/Load Regulation 1. VOUT 500mV/div 4mS/div 2. IOUT 10A/div 3. Enable 5V/div 1. VOUT 20mV/div 2µS/div 10µF ext cap 2MHz BW 1. VOUT 200mV/div 200µS/div 2. IOUT 10A/div

Bel Power Inc. 155 Flanders Road, Westborough, MA 01581 • Tel 508-870-9775 • Fax 508-870-9796 • www.belpower.com ©2006 Bel Fuse Inc. Specifications subject to change without notice. 11.06 POWER PRODUCTS PISCES II DC/DC CONVERTERS G2PW1V860 48V Input – 1.8VDC – 60A Output page 7 Back Bias Back Bias 1) Vout 1V/div 20mS/div Over Voltage Protection 1) Vout 500mV/div 2mS/div Over-current Protection 2.0 1.8 1.6 1.4 1.2 1.0 0.8 0.6 0.4 0.2 61 71 Output Current (A) Output Voltage (V) 63 65 67 69 Note: Over-current protection is blip-mode (aka hiccup). 36V Vin 48V Vin 75V Vin Thermal Derating 0 2 0 3 0 80 9 0 Ambient Temperature (°C) Output Current (A) Open Frame:

300 LFM

200 LFM

100 LFM

Note: Over current protection is blip-mode (aka hiccup). Thermal DeratingOver Voltage Protection 1. VOUT 500mV/div 2mS/div 1. VOUT 1V/div 20mS/div

Bel Fuse Inc.

206 Van Vorst Street

Jersey City, NJ 07302 Tel 201-432-0463 Fax 201-432-9542 www.belfuse.com FAR EAST 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 EUROPE 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 ©2006 Bel Fuse Inc. Specifications subject to change without notice. 11.06 POWER PRODUCTS PISCES II DC/DC CONVERTERS G2PW1V860 48V Input – 1.8VDC – 60A Output page 8 SIDE VIEW (Surface Mount with studs) SIDE VIEW BOTTOM VIEW B A A A MOUNTING INSERT M3 X 0.5 4 PLACES .070 2.000 PIN TO PIN .210.210 1.45 2.28 1.030 .815PIN 1 .515PIN 2 .215PIN 3 PIN 4.215 PIN 8.815 PIN 6.515 1.860 1.030 TOP VIEW A A B A MOUNTING INSERT MOUNTING INSERT M3 X 0.5 4 PLACES .070 2.000 PIN TO PIN .210 .210 1.45 2.28 1.030 .815 PIN 1 .515 PIN 2 .215 PIN 3 PIN 4.215 PIN 8.815 PIN 7.665 PIN 6.515 .365 1.860 1.030 0.38 0.06 0.38 0.20 0.010 ±0.008 0.030 Pin Function Pin Dia. (In.) 1 – Input 0.040 2 On/Off 0.040 3 + Input 0.040 4 + Output 0.060 5 + Sense 0.040 6 Trim 0.040 7 – Sense 0.040 8 – Output 0.060 Notes: 1. Mechanical tolerances x.xxx in. = ± 0.005 in. x.xx in = ± 0.01 in. 2. Pin material: Brass with tin/lead plating over nickel 3. Workmanship: Meets or exceeds IPC-A-610B Class II 4. "A" = 0.040" dia. pins 5. "B" = 0.060" dia. pins 6. Min. screw length for heat sink attachment = 4.5mm + heat sink flange + locking hardware Pin Configuration – Bottom View Mechanical G2PW1V860 RoHS Compliance Complies with the European Directive 2002/95/EC, calling for the elimination of lead and other hazardous substances from electronic products. These parts are not however compatible with the higher temperatures associated with lead free solder processes and must be soldered using a reflow profile with a peak temperature of no more than 240˚C.