AP3101 Datasheet, PDF (1/14 Pages) BCD Semiconductor Manufacturing Limited – GREEN MODE PWM CONTROLLER

GREEN MODE PWM CONTROLLER
General Description
Features
Preliminary Datasheet
AP3101
The AP3101 is a green PWM controller operating in
current mode. It is specially designed for off-line AC-
DC adapter and battery charger applications where the
needs for low standby power and better protection
function are increasing.
The AP3101 features adjustable oscillator frequency in
normal operation, which is done by an external resis-
tor. It automatically switches to skip cycle mode when
output power drops below a given level. The IC also
features low start-up and operation current for its
BiCMOS process.
The AP3101 provides comprehensive protection fea-
tures including leading edge blanking, synchronized
slope compensation, over-current, over-temperature
and short circuit protection.
The AP3101 is available in 2 packages: SOIC-8 and
DIP-8.
· Green Current Mode PWM Controller
· Adjustable Skip Level
· Leading Edge Blanking (LEB)
· Cycle by Cycle Current Limit
· Built-in Short Circuit Protection
· Built-in Synchronized Slope Compensation
· Low Start-up/Operating Current: 30µA/3mA
· Adjustable Oscillator Frequency
· Totem Pole Output Including Soft Driving
· Under-Voltage Lockout (UVLO)
· Accurate Over-Temperature Protection with Hys-
teresis
Applications
· Off-line AC-DC Adapter
· Battery Charger Applications
SOIC-8
DIP-8
Apr. 2007 Rev. 1. 3
Figure 1. Package Types of AP3101
BCD Semiconductor Manufacturing Limited
1