APL3540,APL3542A is a high-side power distribution controller for an external N-channel MOSFET, allow for +12V and +19V power-supply rails. The wrong input voltage protection function protects a w
Features
High-Side Driver for an External N-Channel
MOSFET
Under-Voltage Lockout (UVLO)
Wrong VIN Input Voltage Protection
Output Under-Voltage Protection (UVP)
Short-Circuit Protection During Power-Up (SCP)
Over-Current Protection (OCP)
Shutdown Function
Power-Ok (POK) Function
Lead Free and Green Devices Available
(RoHS Compliant)
General Description
APL3540,APL3542A is a high-side power distribution controller for
an external N-channel MOSFET, allow for +12V and +19V
power-supply rails. The wrong input voltage protection
function protects a wrong input adapter insertion. When
input voltage is out of the target input voltage range, the IC
is off.
The built-in under-voltage protection monitors the output
voltage for short-circuit conditions. When output voltage
is less than 70% of VIN voltage, the IC will be shut down.
The over-current protection monitors the output current
by using the voltage drop across the external MOSFET’s
RDS(ON). When output current reaches the trip point, the IC
will be shut down. The APL3540 also provides a short-
Applications
circuit protection during power-up. The device monitors
DRV and VOUT voltages for a short-circuit detection. If a


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