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48V Input - 1.5VDC - 60A Output
PISCES II DC/DC CONVERTERS
POWER PRODUCTS
G2PW1V560
G2PW1V560 - 1/4 Brick Pisces II Series
* * * * * * * * * * * * Industry standard pinout and footprint Very low dissipation No heat sink required for most applications Low profile, 0.38" High efficiency: 88% at 1.5V, 60A; 90% at 1.5V, 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
Control Functions
* * * Uses patented power supply control and architecture Microprocessor controlled Primary-side enable, choice of logic
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 Example Part Number: (All options)
Protection Features
* * * * Over temperature protection Over voltage protection Over current protection Over/Under input voltage protection
Ordering Information
Standard Model Number G2PW1V560* * Options: P = Positive Logic Version; High = On Input Voltage 48V Output Voltage 1.5V Max Current 60A R = Heat Sink Ready T = Tuned model**
G2PW1V560 PS RT 0 0 X
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 ** 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 5600F with an impedance magnitude of less than 0.005 at 15kHz. It offers a minmum 3X improvement in the peak response compared to a standard unit. Consult factory.
Specifications subject to change without notice. 11.06
E = 0.18" Pins ( .01") M = 0.145" Pins ( .01") S = 0.12" Pins ( .01")
Pisces II Heat Sink Part Numbers
Part Number 001 002 003 004 005 Height 0.25" 0.50" 1.00" 0.13" 0.70"
Typical Thermal Performance Natural Convection Power Dissipation 5W 7W 11W TBD TBD @ 300'/min.
(c)2006 Bel Fuse Inc.
Forced Convection Thermal Resistance 5.8 C/W 3.2 C/W 2.0 C/W TBD TBD
@ 60 C rise heat sink to ambient
Bel Power Inc. 155 Flanders Road, Westborough, MA 01581 * Tel 508-870-9775 * Fax 508-870-9796 * www.belpower.com page 1
POWER PRODUCTS
G2PW1V560
48V Input - 1.5VDC - 60A Output
PISCES II DC/DC CONVERTERS
Input Specifications
Parameter Operating Input Voltage Input Current Input Capacitance Input Hysteresis, Low Line 4 2 Min 36 Typical 48 Max 75 6 Units VDC A F VDC
VIN = 48VDC, TA@25 C, 300 LFM Airflow, VOUT = 1.5VDC, IOUT = Full load unless otherwise noted. Available output power depends on ambient temperature and good thermal management. (See application graphs for limits.)
Output Specifications
Parameter Regulation Over Line, Load & Temperature Voltage Ripple Voltage Ripple, 20MHz BW Current Range Current Limit Inception Short Circuit Current, Peak1 Output Transient Response, 50% to 75% Load Change, 1A/sec Settling Time to 1% Turn-on Time to 98% Vnom Output Overshoot at Turn-on Trim Range Over Voltage Protection, Latching 70 130 0 110 0 103 Min 98 Typical Max 102 25 85 60 140 90 5 200 35 Units %VNOM mV RMS mV P-P A %IOUT A %VOUT S mS %VOUT %VOUT %VOUT
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.
(c)2006 Bel Fuse Inc.
Specifications subject to change without notice. 11.06
Bel Power Inc. 155 Flanders Road, Westborough, MA 01581 * Tel 508-870-9775 * Fax 508-870-9796 * www.belpower.com page 2
48V Input - 1.5VDC - 60A Output
PISCES II DC/DC CONVERTERS
POWER PRODUCTS
G2PW1V560
Isolation Specifications
Parameter Isolation Test Voltage, Input/Output (Basic) Isolation Test Voltage, Input/Case Isolation Test Voltage, Output Case Isolation Resistance Min 2250 2000 500 10 Typical Max Units VDC VDC VDC M
Features
Parameter Over Temperature Protection, Thermal Sensor, Latching2 Switching Frequency, Fixed 2. PCB less than 130 C. 250 Min Typical Max 110 Units
C
kHz
General Specifications
Operating Temperature Storge Temperature Relative Humidity Vibration Material Flammability Weight MTBF Telcordia (Bellcore) -40 C to + 100 C -55 C + 125 C 10% to 95% RH, Non-condensing 2 to 9 Hz, 3mm disp., 9 to 200 Hz, 1g UL V-0 35 grams 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.
(c)2006 Bel Fuse Inc.
Specifications subject to change without notice. 11.06
Bel Power Inc. 155 Flanders Road, Westborough, MA 01581 * Tel 508-870-9775 * Fax 508-870-9796 * www.belpower.com page 3
POWER PRODUCTS
G2PW1V560
48V Input - 1.5VDC - 60A Output
PISCES II DC/DC CONVERTERS
Application Notes
CoolConverterTM
Bel Power's Proprietary CoolConverterTM * Patented single-stage power conversion architecture, control and magnetic design allow unprecedented power density and efficiency in an isolated power supply. * * 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.
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 100A. 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 100k 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 nonlatching is required, consult factory.
Output Voltage (V)
Over Voltage Hysteresis
6 5 4 3 2 1 0 76.5
Output Voltage (V)
77
77.5
78
78.5
79
79.5
80
80.5
Input Voltage (V)
Under Voltage Hysteresis
6 5 4 3 2 1 0 30
31
32
33
34
35
36
37
Input Voltage (V)
(c)2006 Bel Fuse Inc.
Specifications subject to change without notice. 11.06
Bel Power Inc. 155 Flanders Road, Westborough, MA 01581 * Tel 508-870-9775 * Fax 508-870-9796 * www.belpower.com page 4
48V Input - 1.5VDC - 60A Output
PISCES II DC/DC CONVERTERS
POWER PRODUCTS
G2PW1V560
CoolConverterTM
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-down RTRIM-DOWN = Trim-up
RTRIM-UP
=
{
1.5(100+%) _ 1.225%
(100+2%) %
}
5.11k
1.5V Trim-up
1000
Trim Resistance (k)
100
10
1 0 1 2 3 4 5 6 7 8 9 10
Increase in Output Voltage (%)
{
100 _ 2 %
}
5.11k
+ Sense
Trim Resistance (k)
Trim-down
1000
Trim
100
- Sense
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.
10
0
1
2
3
4
5
6
7
8
9
10
Decrease in Output Voltage (%)
(c)2006 Bel Fuse Inc.
Specifications subject to change without notice. 11.06
Bel Power Inc. 155 Flanders Road, Westborough, MA 01581 * Tel 508-870-9775 * Fax 508-870-9796 * www.belpower.com page 5
POWER PRODUCTS
G2PW1V560
48V Input - 1.5VDC - 60A Output
PISCES II DC/DC CONVERTERS
Efficiency Data Efficiency
91
18
Power Dissipation Power Dissipation
Power Dissipation (W)
16 14 12 10 8 6 4 2 0 0 10 20 30 40
89
Efficiency (%)
87 85 83 81 79 77 75 0 10 20 30
36V Vin 48V Vin 75V Vin
40 50 60
36V Vin 48V Vin 75V Vin
50 60
Output Current (A)
Output Current (A)
Start Up Start Up
Voltage Ripple Voltage Ripple
CH2 CH3 CH1
1) Vout 1V/div 4mS/div 2) Iout 10A/div 3) Enable 5V/div
1. VOUT 1V/div 4mS/div 2. IOUT 10A/div 3. Enable 5V/div
1. VOUT 10mV/div 2S/div 10F ext cap 2MHz BW 10F ext cap 2MHz BW
1) Vout 10mV/div 2S/div
Line/Load Regulation Line/Load Regulation
1.515
Transient Response Transient Response
Output Voltage (V)
Setpoint Accuracy 0.3000% Line Regulation 0.0201% Load Regulation 0.0134% Line & Load Regulation 0.0234%
CH1
1.505
36V Vin 48V Vin 75V Vin
CH2
1.495
1.485
0
10
20
30
40
50
60
Output Current (A)
1. Iout 10A/div 2) VOUT 200mV/div 200S/div 2. IOUT 10A/div
1) Vout 200mV/div 200S/div
(c)2006 Bel Fuse Inc.
Specifications subject to change without notice. 11.06
Bel Power Inc. 155 Flanders Road, Westborough, MA 01581 * Tel 508-870-9775 * Fax 508-870-9796 * www.belpower.com page 6
48V Input - 1.5VDC - 60A Output
PISCES II DC/DC CONVERTERS
POWER PRODUCTS
G2PW1V560
Back Bias
Back Bias
1.6 1.4
Over Current Protection
Note: Over current protection is blip-mode (aka hiccup). Over-current Protection
Note: Over-current protection is blip-mode (aka hiccup).
Output Voltage (V)
1.2 1.0 0.8 0.6 0.4 0.2 0 61
36V Vin 48V Vin 75V Vin
63 65 67 69 71
1) Vout 500mV/div 10mS/div
1. VOUT 500mV/div 10mS/div
Output Current (A)
Over VoltageProtection Over Voltage Protection
70 60
Thermal Derating Thermal Derating
Output Current (A)
50 40 30 20 10 0 0 Open Frame: 300 LFM 200 LFM 100 LFM 10 20 30 40 50 60 70 80 90
1) Vout 500mV/div 2mS/div
1. VOUT 500mV/div 2mS/div
Ambient Temperature (C)
(c)2006 Bel Fuse Inc.
Specifications subject to change without notice. 11.06
Bel Power Inc. 155 Flanders Road, Westborough, MA 01581 * Tel 508-870-9775 * Fax 508-870-9796 * www.belpower.com page 7
.815 .665 .515 .365 .215
PIN 8 PIN 7 PIN 6 PIN 4 0
B A A
.815 PIN 1 A .515 PIN 2 .215 PIN 3 0 TOP VIEW .210 .210 1.45
1.860
PISCES II DC/DC CONVERTERS
48V Input - 1.5VDC - 60A Output Mechanical
G2PW1V560
1.030 PIN 1 .815 1.45 PIN 2 .515 PIN 3 .215 0 .210
MOUNTING INSERT M3 X 0.5 4 PLACES
2.000 PIN TO PIN
POWER PRODUCTS
0
.070
G2PW1V560
2.28
1.030
A A A
B
.815 PIN 8 .515 PIN 6 .215 PIN 4 0
.210 .070 0
BOTTOM VIEW 1.860
MOUNTING INSERT M3 X 0.5 4 PLACES
2.000 PIN TO PIN
0.38
Pin Configuration - Bottom View
Pin 1 2 3 4 5 6 7 8 Function - Input On/Off + Input + Output + Sense Trim - Sense - Output Pin Dia. (In.) 0.040 0.040 0.040 0.060 0.040 0.040 0.040 0.060
0.20
SIDE VIEW
0.010 0.008
Notes: 0.38 1. Mechanical tolerances x.xxx in. = 0.005 in. x.xx in = 0.06 in. SIDE VIEW (Surface Mount with studs) 0.01 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
0.030
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 240C.
(c)2006 Bel Fuse Inc. Specifications subject to change without notice. 11.06
CORPORATE
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
page 8

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