E36SC120 Datasheet, PDF (7/16 Pages) Delta Electronics, Inc. – Industry standard footprint and pinout

FEATURES DESCRIPTIONS
Over-Current Protection
The module 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 module will
automatically shut down, and enter hiccup mode.
For hiccup mode, the module will try to restart after
shutdown. If the over current condition still exists, the
module will shut down again. This restart trial will continue
until the over-current 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 module will shut down, and enter in hiccup mode.
For hiccup mode, the module will try to restart after
shutdown. If the over voltage condition still exists, the
module will shut down again. This restart trial will continue
until the over-voltage condition is corrected.
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, and enter in auto-restart mode.
For auto-restart mode, the module will detect temperature
after shutdown. If the over temperature condition still exists,
the module will remain shutdown. This restart trial will
continue until the over-temperature condition is corrected.
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 floating.
Vi(+) _Vo(+)
Sense(+)
ON/OFF _trim
Sense(-)
Vi(-) Vo(-)
Rload
Figure 14: Remote on/off implementation
Remote Sense
Remote sense compensates for voltage drops on the
output by sensing the actual output voltage at the point
of load. The voltage between the remote sense pins
and the output terminals must not exceed the output
voltage sense range given here:
[Vo(+) – Vo(–)] – [SENSE(+) – SENSE(–)] ≤ 10% × Vout
This limit includes any increase in voltage due to
remote sense compensation and output voltage set
point adjustment (trim).
Vi(+) _Vo(+)
Conduct resistance
Sense(+)
ON/OFF _trim
Sense(-)
Vi(-) Vo(-)
Rload
Figure 15: Effective circuit configuration for remote sense
operation
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