AP3101

Document number: DS37418 Rev. 2 - 2

1 of 12

www.diodes.com

July 2014

© Diodes Incorporated

AP3101

A Product Line of

Diodes Incorporated

GREEN MODE PWM CONTROLLER

Description

The AP3101 is a green PWM controller operating in current mode. It

is specifically 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 resistor. 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 features including

leading edge blanking, synchronized slope compensation, over-

current, over-temperature and short circuit protection.

The AP3101 is available in SO-8 package.

Features



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: 30

μA/3mA



Adjustable Oscillator Frequency



Totem Pole Output Including Soft Driving



Under-Voltage Lockout (UVLO)



Accurate Over-Temperature Protection with Hysteresis



Lead-Free Package: SO-8



Totally Lead-Free; RoHS Compliant (Notes 1 & 2)



Lead-

Free Package, Available in “Green” Molding Compound:

SO-8



Totally Lead-Free & Fully RoHS Compliant (Notes 1 & 2)



Halogen and Antimony Free. “Green” Device (Note 3)

Pin Assignments

(Top View)

1

2

3

4

8

7

6

5

GND

VIN

FB

RI

GATE

VCC

SENSE

ADJ

SO-8

Applications



Off-line AC-DC Adapter



Battery Charger Applications

Notes:

1. No purposely added lead. Fully EU Directive 2002/95/EC (RoHS) & 2011/65/EU (RoHS 2) compliant.

2. See http://www.diodes.com/quality/lead_free.html for mor

e information about Diodes Incorporated’s definitions of Halogen- and Antimony-free, "Green"

and Lead-free.

3. Halogen- and Antimony-

free "Green” products are defined as those which contain <900ppm bromine, <900ppm chlorine (<1500ppm total Br + Cl) and

<1000ppm antimony compounds.