Q48SK12025NRFH Delta Electronics, Q48SK12025NRFH Datasheet - Page 8

• Manufacturer Part Number: Q48SK12025NRFH
• Description: CONV DC/DC 25A 48V/IN 12V/O NEG
• Manufacturer: Delta Electronics
• Series: DELPHIr
• Type: Isolated with Remote On/Off and UVLOr

Specifications of Q48SK12025NRFH

• Output: 12V
• Number Of Outputs: 1
• Power (watts): 300W
• Mounting Type: Through Hole
• Voltage - Input: 48V
• Package / Case: 6-DIP Module, 1/4 Brick
• 1st Output: 12 VDC @ 25A
• Size / Dimension: 2.28" L x 1.45" W x 0.50" H (57.9mm x 36.8mm x 12.7mm)
• Power (watts) - Rated: 300W
• Operating Temperature: -40°C ~ 112°C
• Efficiency: 95.2%
• Approvals: cUL, UL
• Lead Free Status / RoHS Status: Lead free / RoHS Compliant
• 3rd Output: -
• 2nd Output: -
• 4th Output: -
• Other names: 941-1012

FEATURES DESCRIPTIONS
Over-Current Protection
The modules include an internal output over-current
protection circuit, which will endure current limiting for
an unlimited duration during output overload. If the
output current exceeds the OCP set point, the modules
will shut down (hiccup mode).
The modules will try to restart after shutdown. If the
overload condition still exists, the module will shut down
Figure 16: Remote on/off implementation
again. This restart trial will continue until the overload
condition is corrected.
Over-Voltage Protection
The modules include an internal output over-voltage
protection circuit, which monitors the voltage on the
output
terminals.
If
this
voltage
exceeds
the
over-voltage set point, the protection circuit will
constrain the max duty clcyle to limit the output voltage,
if the output voltage continlously increases the modules
will shut down, and then restart after a hiccup-time
(hiccup mode).
Over-Temperature Protection
The over-temperature protection consists of circuitry
that provides protection from thermal damage. If the
temperature exceeds the over-temperature threshold
the module will shut down. The module will restart after
the temperature is within specification.
Remote On/Off
The remote on/off feature on the module can be either
negative or positive logic. Negative logic turns the
module on during a logic low and off during a logic high.
Positive logic turns the modules on during a logic high
and off during a logic low.
Remote on/off can be controlled by an external switch
between the on/off terminal and the Vi (-) terminal. The
switch can be an open collector or open drain.
For negative logic if the remote on/off feature is not
used, please short the on/off pin to Vi (-). For positive
logic if the remote on/off feature is not used, please
leave the on/off pin to floating.
DS_Q48SK12025_07012010
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