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BOLERO HV Series
48V Input, 52VDC, 4A Output
The Bolero HV half brick is a High Power CoolConverterTM in the Galaxy family of high-efficiency DC/DC converters.
Industry Standard Pinout and Footprint Typical Efficiency: 93% at 52V, 4A; 91% at 52V, 2A No Heat Sink Required (Baseplate Standard) Very Low Common-mode Noise for a Commercial DC/DC Converter Two-stage Input Filter Constant Switching Frequency, 330kHz Remote Sense Single Board SMT Construction Low Profile, 0.4" Optional Low Profile Heatsink for Improved Thermal Performance Header with M3 Metal Inserts for Mechanical Connection to PCB Two Year Warranty
Low profile single board layout provides high reliability and metal baseplate improves thermal performance by >10C over open frame designs.
Control Functions
Optional Droop Current Sharing Microprocessor Controlled Primary-side Enable, Choice of Logic
Protection Features
Over Temperature Protection Over Voltage Protection Over/Under Input Voltage Protection Over Current Protection
Typical Characteristics
Output Setpoint Accuracy: 1% Load Regulation: 0.25% Line Regulation: 0.25% Regulation over Line, Load, and Temperature: 2% Low Output Ripple Industry Standard Output Trim
Bolero HV Series, Page 1
PRODUCT PREVIEw
Part No. 02-004 Rev. 1.9.5-102502
General Specifications
VIN = 48V DC, T A @25 C, 300 LFM airflow, V OUT = 52V, I OUT = Full Load unless otherwise noted. COUT = 180F Al-Elec Available output power depends on ambient temperature and good thermal management. (See application graphs for limits.)
Input Characteristics
Parameter Min Typ Max Units
Operating Input Voltage Input Current (Model Dependent) Input Capacitance Input Hysteresis, Low Line
36
48 4.0 2
75 7.0
V DC A F V DC %V NOM VDC mV RMS mV P-P A A A S mS %V OUT %V OUT %V OUT** V DC M
Output Characteristics
Regulation Over Line, Load & Temperature Optional Droop, No Load to Full Load Voltage Ripple Voltage Ripple, 20MHz BW Current Range Current Limit Inception Short Circuit Current, Peak (see Note below) Settling Time to 1% Turn-on Time to 98% Vnom Output Overshoot at Turn-on Trim Range Overvoltage Protection, Latching 98 102 2 30 200 4 5.0 6 300 30 1 105 115 2250 10 120 330
0 4.2
50
Isolation
Isolation Test Voltage, Input/Output (Basic) Isolation Resistance
Features
Overtemperature Protection, Thermal Sensor, Latching* Switching Frequency, Fixed C kHz
Notes: 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. For specific output voltage specifications, see the corresponding detailed data sheet. *PCB less than 130C. **OVP set to limit maximum voltage in system to a safe level. This can be adjusted for higher voltages if needed.
General Specifications
Operating Temperature, Baseplate Storage Temperature Relative Humidity Vibration Material Flammability Weight MTBF Telcordia (Bellcore) -40C to +100C -55C to +125C 10% to 95% RH, Non-condensing 2 to 9Hz, 3mm disp., 9 to 200Hz 1g UL V-0 55 grams 1,600,000 hours
Approvals and Standards
UL and c-UL Recognized Component, TUV, UL60950, CSA 22.2 No. 950, IEC/EN60950** pending. EMC Characteristics: Designed to meet emission and immunity requirements per EN55022, CISPR22, Class B and CISPR24.
** An external fuse shall be used to comply with the requirements.
Bolero HV Series, Page 2
PRODUCT PREVIEw
Part No. 02-004 Rev. 1.9.5-102502
Application Notes CoolConverterTM Family
Galaxy's COOLCONVERTERSTM feature: * 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.
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 below 1.0V with respect to the -INPUT pin to enable the converter. For Positive logic, the ON/OFF pin is brought to greater than 4.0V with respect to the Enable. To request the Positive logic version, add the suffix (P) to the standard part number. The Input pin has a built-in pull-up resistor of approximately 100k to +5.0V.
Bolero HV Series, Page 3
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Part No. 02-004 Rev. 1.9.5-102502
APPLICATION NOTES
Output Over Voltage Protection: The output voltage is constantly monitored by the microprocessor. If the output voltage exceeds the over-voltage specification, the microprocessor will latch the converter off. To turn the converter on requires either cycling the ON/OFF pin or power to the converter. This feature prevents the converter from damaging the load if there is a converter failure or application error. If non-latching is required, consult factory. 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. Control Options: As the behavior of the circuit is determined by firmware in the microcontroller, specific customer 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 we understand that customers often have their own requirements. Please consult Galaxy Power for your 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 2% of Vout, whichever is greater. Safety: An external input fuse must always be used to meet safety requirements.
Trim-down (%)
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. See diagram below. Trim-down
RTRIM-DOWN =
{
100 - 2 k %
}
Trim-up (for 3.3V)
Trim-up (%)
RTRIM-UP =
{
Vo (100+%) (100+2%) - 1.225% %
}
k
External Output Trimming
+ Sense
Trim
- Sense
Bolero HV Series, Page 4
PRODUCT PREVIEw
Part No. 02-004 Rev. 1.9.5-102502
GPBW52V04R OPERATION
Efficiency
94
Power Dissipation
Efficiency (%)
90 88 86 84 82 80 0 1 2 3 4
40V Vin 48V Vin 60V Vin
Power Dissipation (W)
92
36V Vin 48V Vin 75V Vin
Load Current (A)
Load Current (A)
Start-up Waveform
[
T
T
Voltage Ripple
[ ]
]
Ch1 Pk-Pk 104.0mV Ch1 RMS 16.38mV
1
VOUT
2
Ch1 20.0V
BW
Ch2
5.00 V
BW
M 10.0ms A
Ch2
1.80V
100mV
1
32.0mV
Transient Reponse
1
CH1: Vout Response
CH2: Load (2A/div) 2
BW
50.0mV
BW
1.00ms
2
Bolero HV Series, Page 5
PRODUCT PREVIEw
Part No. 02-004 Rev. 1.9.5-102502
Package Detail
MOUNTING INSERT CONNECTED TO CASE PIN 2.000 PIN 1 1.700 * PIN 2 1.300 2.40 PIN 3 .700 PIN 4 .300 0 .20 .19 BOTTOM VIEW A A (CASE) A A B B A A .700 PIN 7 A B B .500 PIN 6 (Omitted) .300 PIN 5 0 MOUNTING INSERT M3 X 0 .5 4 PLACES 2.28 2.000 1.700 PIN 11 1.500 PIN 10 (Omitted) 1.300 PIN 9 1.000 PIN 8
Pin No. Function Pin Dia. (in.)
1 2* 3 4 5 6 7 8 9 10 11
Notes:
- Input 0.040 Case Ground Pin 0.040 On/Off 0.040 + Input 0.040 + Output 0.080 N/C (No Pin) + Sense 0.040 Trim 0.040 - Sense 0.040 N/C (No Pin) - Output 0.080
0.40 SIDE VIEW
Bolero HV Series, Page 6
1.900
*NON-STANDARD PIN OUT
1. "A" = 0.040 dia. pins 2. "B" = 0.080 dia. pins 3. Optional pins marked* 4. Mechanical tolerances x.xxx in. = 0.005 in. x.xx in. = 0.01 in. 5. Pin material: brass with tin/lead plating over nickel 6. Workmanship: Meets or exceeds IPC-A-610B Class II
0
PRODUCT PREVIEw
Part No. 02-004 Rev. 1.9.5-102502
ORDERING INFORMATION
Bolero HV Part Numbers
Standard Model Number Output Voltage Max Current Typical Efficiency Half Load Full Load
Heatsink Part Numbers
Part Number Height Typical Thermal Performance Natural Convection Forced Convection Power Dissipation Thermal Resistance**
GPBW52V04R*
52V
4A
93%
91%
001 002 003 004
0.25" 0.50" 1.00" 0.13"
5W 7W 11W TBD
5.8C/W 3.2C/W 2.0C/W TBD
** @ 300'/min.
* Options: P = Positive Logic Version; High = On M = 0.145" Pins (.01") S = 0.12" Pins (.01") R = Heatsink Ready G00X = Case Ground Pin + Heatsink Heatsinks optional, consult factory.
@ 60C rise heatsink to ambient
Ordering Information Example Part No.: GPBW52V04R 48V input 52V@ 4A output Negative Logic 0.20" Pin Length Heatsink Ready Plate Options Code:
(All options shown)
GPBW 52V04 P S R G 00X
Part Number (from chart above) Options: Positive Logic Version Optional Pin Length M = 0.145" S = 0.12" Heatsink Ready Case Ground Pin Heatsink 001 = 0.25" 002 = 0.50" 003 = 1.00" 004 = 0.15"
Galaxy Power Inc. warrants to the original purchaser that the products conform to this data sheet and are free from material and workmanship defects for a period of two (2) years from the date of manufacture, if this product is used within specified conditions. Galaxy Power Inc. reserves the right to make changes to the product(s) or information contained herein without notice. No liability is assumed as a result of their use or application. No rights under any patent accompany the sale of any such products or information. For additional details on this limited warranty consult the factory.
155 Flanders Road Westborough, MA 01581 508-870-9775 Fax: 508-870-9796 e-mail: galaxy@galaxypwr.com website: http://www.galaxypwr.com
(c) Copyright 2002 Galaxy Power, Inc. Specifications subject to change without notice.
Bolero HV Series, Page 7
PRODUCT PREVIEw
Part No. 02-004 Rev. 1.9.5-102502

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