APL3540 Datasheet, PDF (1/19 Pages) Anpec Electronics Coropration – High-Side Power Distribution Controller

APL3540
High-Side Power Distribution Controller
Features
General Description
• 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)
Applications
• Desktop PCs
APL3540 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
R . When output current reaches the trip point, the IC
DS(ON)
will be shut down. The APL3540 also provides a short-
circuit protection during power-up. The device monitors
DRV and VOUT voltages for a short-circuit detection. If a
short-circuit condition is detected, the IC will be shut
down. Other features, including a POK output which indi-
cates that the output voltage is ready and a logic-con-
trolled shutdown mode.
Pin Configuration
VIN 1
OCSET 2
DRV 3
VOUT 4
SOP-8
(Top View)
8 VINSEL
7 POK
6 GND
5 EN
VIN 1
OCSET 2
DRV 3
VOUT 4
8 VINSEL
7 POK
6 GND
5 EN
TDFN2x2-8
(Top View)
=Exposed Pad
(Please connect to the ground)
ANPEC reserves the right to make changes to improve reliability or manufacturability without notice, and
advise customers to obtain the latest version of relevant information to verify before placing orders.
Copyright © ANPEC Electronics Corp.
1
Rev. A.9 - Oct., 2013
www.anpec.com.tw