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GPBR52V04A001 Datasheet(PDF) 5 Page - Bel Fuse Inc. |
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GPBR52V04A001 Datasheet(HTML) 5 Page - Bel Fuse Inc. |
5 / 9 page Bel Power Inc. 155 Flanders Road, Westborough, MA 01581 • Tel 508-870-9775 • Fax 508-870-9796 • www.belpower.com ©20 11 Bel Fuse Inc. Specifications subject to change without notice. 051811 POWER PRODUCTS GPB R52V04A BOLERO HV DC/DC CONVERTERS 48V Input – 52VDC – 4A Output page 5 CoolConverter ™ Trim-down Increase in Output Voltage (%) 10000 1000 100 0 1 23456 7 8 9 10 52V Trim-up Decrease in Output Voltage (%) 1000 100 10 0 0 1 23456 7 8 9 10 Trim-down R TRIM-UP = VO (100+ %) _ (100+2 %) k 1.225 % % { } R TRIM-DOWN = 100 _ 2k % { } Trim-up 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 shutdown 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 2% 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. See diagram above. 6 6 88 77 |
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