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APL3542A
Active
High-Side Power Distribution Controller
Features
General Description
APL3542A is a high-side power distribution controller for an external N-channel MOSFET, allow for +12V, +19V or +5V power-supply rail. 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 over-current protection monitors the output current by using the voltage drop across the external sensing resistor, when output current reaches the trip point the IC will be shut down. The APL3542A also provides a shortcircuit protection during power-up. The device monitors VOUT voltages for a short-circuit detection, if a short-circuit condition is detected the IC will be shut down. Other features include a POK output to indicate the output voltage is ready, and a logic-controlled shutdown mode.
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)
- Selectable VIN Monitor Voltage
- Shutdown Function
- Power Okay (POK) Function
- Lead Free and Green Devices Available (RoHS Compliant)
General Description
APL3542A is a high-side power distribution controller for an external N-channel MOSFET, allow for +12V, +19V or +5V power-supply rail. 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 over-current protection monitors the output current by using the voltage drop across the external sensing resistor, when output current reaches the trip point the IC will be shut down. The APL3542A also provides a shortcircuit protection during power-up. The device monitors VOUT voltages for a short-circuit detection, if a short-circuit condition is detected the IC will be shut down. Other features include a POK output to indicate the output voltage is ready, and a logic-controlled shutdown mode.
