GPBW24V08 Datasheet, PDF (5/8 Pages) Bel Fuse Inc. – BOLERO HV DC/DC CONVERTERS

BOLERO HV DC/DC CONVERTERS
48V Input – 24VDC – 8A Output
CoolConverter^™
POWER PRODUCTS
GPBW24V08
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.
Trim-up
{ } ^{Rtrim-UP =}
Vo (100+∆%) _{_} (100+2∆%)
1.225∆%
∆%
kΩ
10000
24V Trim-up
1000
100
0 1 2 3 4 5 6 7 8 9 10
Increase in Output Voltage (%)
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.
Trim-down
{ } ^{R = trim-DOWN}
100 _ ₂
∆%
kΩ
External Output Trimming
6
6
Trim-down
1000
7
7
100
8
8
10
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.
0
0 1 2 3 4 5 6 7 8 9 10
Decrease in Output Voltage (%)
©2006 Bel Fuse Inc. Specifications subject to change without notice. 11.06
Bel Power Inc. 155 Flanders Road, Westborough, MA 01581 • Tel [phone] • Fax [phone] • www.belpower.com
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