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DORADO HV DC/DC CONVERTER
48V Input - 34VDC - 3A Output GLDW34V03 - 1/4 Brick Dorado HV
* * * * * * * * * * Industry standard pinout and footprint High efficiency: 87% at 34V, 3A; 89% at 34V, 1.5A Droop feature allows current sharing Very low common-mode noise for a commercial DC/DC converter Two-stage input filter Constant switching frequency Remote sense Single board design Optional low profile heat sink for improved thermal performance Header with M3 metal inserts for mechanical connection to PCB
POWER PRODUCTS
GLDW34V03
Control Functions
* * * * * Compatible with fan turn-on requirements Designed to be stable with high capacitance load Uses innovative control and power topology for lower parts count Microprocessor controlled Primary-side enable, choice of logic
Protection Features
* * * * Over temperature protection Over voltage protection Over current protection Over/Under input voltage protection
Typical Characteristics
* * * * * Output setpoint accuracy: 0.2% Load regulation: - 0.77V/A untrimmed Line regulation: 0.2% Low output ripple Output trim Example Part Number: (All options)
Ordering Information
Standard Model Number GLDW34V03* * Options: P = Positive Logic Version; High = On Input Voltage 48V Output Voltage 34V Max Current 3A S = 0.12" Pins ( .01") R = Heat Sink-Ready
GLDW34V03 PSR 0 0 X 1 2 3
Part Number Options: Positive Logic Version Optional Pin Lengths E = 0.18" M = 0.145" S = 0.12" Heat Sink-Ready Heat Sink 001 = 0.25" 002 = 0.50" 003 = 1.00" 004 = 0.13" Latched OVP and OTP latch immediately OCP latches after 3 seconds
E = 0.18" Pins ( .01") M = 0.145" Pins ( .01")
Dorado HV Heat Sink Part Numbers
Part Number 001 002 003 004 Height 0.25" 0.50" 1.00" 0.13"
Typical Thermal Performance Natural Convection Power Dissipation 5W 7W 11W TBD @ 300'/min. Forced Convection Thermal Resistance 5.8 C/W 3.2 C/W 2.0 C/W TBD
@ 60 C rise heat sink to ambient
(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 1
POWER PRODUCTS
GLDW34V03
DORADO HV DC/DC CONVERTER
48V Input - 34VDC - 3A Output
Input Specifications
Parameter Operating Input Voltage Input Current Input Capacitance Maximum Turn-on Voltage Minimum Turn-on Voltage Input Hysteresis, Low Line 30.0 2 2 35.5 Min 36 Typical 48 Max 75 4 Units VDC A F V V VDC
VIN = 48VDC, TA@25 C, 300 LFM Airflow, VOUT = 34VDC, IOUT = 68F electrolytic capacitor across output pins. Available output power depends on ambient temperature and good thermal management. (See application graphs for limits.)
Output Specifications
Parameter Output Voltage/Trim Range1 Remote Sense Compensation Regulation Over Line, Load & Temperature Voltage Ripple Current Range - Trimmed to 26V Current Range - Untrimmed Current Limit Inception2 Turn-on Time to 98% Vnom Output Overshoot at Turn-on Over Voltage Protection 115 0 0 110 130 400 1 97 Min 16.5 Typical Max 35.5 1 103 30 3.6 3 Units VDC V %VNOM mVRMS A A %IOUT mS %VOUT %VOUT
1. Trimming is realized by connecting an external resistor between "trim" pin and "-sense" pin. See graph and formula on page 4. 2. Current limit inception is output voltage dependent. See Current Limit Graph on page 5.
(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
DORADO HV DC/DC CONVERTER
48V Input - 34VDC - 3A Output
POWER PRODUCTS
GLDW34V03
Isolation Specifications
Parameter Isolation Test Voltage, Input/Baseplate/Output (Basic) Isolation Resistance Min 2000 10 Typical Max Units VDC M
Features
Parameter Over Temperature Protection, Thermal Sensor3 Switching Frequency, Fixed 3. PCB less than 130 C. 333 Min Typical Max 117 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
GLDW34V03
DORADO HV DC/DC CONVERTER
48V Input - 34VDC - 3A Output
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 as a result of lower capacitance in the transformer compared to planar magnetics and metal baseplate designs. Higher reliability than planar transformer designs that can suffer from via fatigue from thermal cycling, and metal baseplate designs with board to board interconnects that are subject to mechanical stress on electrical connections.
*
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 monitored by a redundant secondaryside circuit. If the ouput voltage exceeds the over voltage specification, the microprocessor will restart every 2 seconds and limit voltage with a separate reference circuit. This advanced feature prevents the converter from damaging the load if there is a converter failure or application error. Latching is available as an option.
(c)2006 Bel Fuse Inc. Specifications subject to change without notice. 11.06
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
Output Voltage (V)
31
32
33
34
35
36
37
Input Voltage (V)
Bel Power Inc. 155 Flanders Road, Westborough, MA 01581 * Tel 508-870-9775 * Fax 508-870-9796 * www.belpower.com page 4
DORADO HV DC/DC CONVERTER
48V Input - 34VDC - 3A Output
POWER PRODUCTS
GLDW34V03
CoolConverterTM
Protection and Control
Over Current Protection If over current lasts more than 2 seconds the converter will shut down and try to restart every 10 seconds until the fault is removed. Latching is available as an option. 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 shutdown is required, consult factory. 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 2% of Vout, whichever is greater. Sharing Two modules can passively share a common load of 2 - 6A at 60/40% maximum imbalance with diode ORing when their output voltages are controlled with a common control on the trim pins, from 17V to 32V output range. Safety An external input fuse must always be used to meet these safety requirements. External Output Trimming RTRIM-DOWN = Trim-up =6.2Vout(V) 14.02 (2.5 - 0.055 Iout (A) - Vout (V)
RTRIM-UP
{
}
- 3 k
Trim-down
{
100_ 2 %
}
k
Resistor across Trim Pin
1.103
Trim Resistance (k)
100
10
1 0 5 10 15 20 25 30 35 40 45 50
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
GLDW34V03
DORADO HV DC/DC CONVERTER
48V Input - 34VDC - 3A Output
Efficiency Data
Power Dissipation
Start Up
Voltage Ripple
1. VOUT 10V/div 40mS/div 2. Enable 5V/div
1. VOUT 50mV/div 1S/div
Line/Load Regulation
36.000 35.500 35.000 34.500 34.000 33.500 33.000 32.500 32.000 31.500 31.000 30.500 30.000
Bode Plot
Output Voltage (V)
36V Vin 48V Vin 75V Vin
0
1.5
3
Output Current (A)
(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
DORADO HV DC/DC CONVERTER
48V Input - 34VDC - 3A Output
POWER PRODUCTS
GLDW34V03
Transient Response
Transient Response
50% to 75% Load Transients at VIN = 48V@TA = 25C
75% to 50% Load Transients at VIN = 48V@TA = 25C
Current Limit vs. Line/Trim Voltage
Setpoint vs. Line/Load
(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
DORADO HV DC/DC CONVERTER
48V Input - 34VDC - 3A Output Mechanical
GLDW34V03
POWER PRODUCTS
GLDW34V03
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 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
* Connected to -Output internally.
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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