AP3102/V/L

Document number: DS37419 Rev.2 - 2

1 of 14

www.diodes.com

July 2014

© Diodes Incorporated

AP3102/V/L

A Product Line of

Diodes Incorporated

GREEN MODE PWM CONTROLLER

Description

The AP3102/V/L series is a green-mode PWM controller with low

start-up current. At normal operation, the switching frequency is

externally programmable and trimmed to tight range, and the

frequency dithering technique is also equipped to improve the EMI

performance. When the load is very low or zero, the IC enters green

mode and skip mode to minimize switching loss. In skip mode, the

PWM switching frequency is about 20kHz to avoid the audible noise

and reduce the standby loss.

The AP3102/V/L series features a lot of functions such as the

Leading-Edge Blanking (LEB) of the current sensing, internal slope

compensation, line compensation, and several protection functions

including cycle-by-cycle current limit (OCP), over voltage protection

(VCC or line voltage), OTP, OLP and brownout protection.

The AP3102/V/L series provides 3 different versions with optional

protection functions. AP3102 has external trigger latch shutdown only

(VOVP and OLP are auto recoverable). AP3102V supports both

VOVP and external latch shutdown.

AP3102L provides latch

shutdown control for VOVP, OLP and external trigger.

This IC is available in SO-8 package.

Features



Bi-CMOS Process with Excellent Performance



Very Low Start-up Current: 5

μA Typical



Current Mode Control



Non-audible-noise Green Mode Control



Frequency Foldback for High Average Efficiency



Internal Slope Compensation



Programmable Brownout Protection



Programmable Line Compensation



Useful Pin Fault Protection:

SENSE Pin Floating

RI Pin Short to Ground

RI Pin Floating



Smart Latch/Auto-recoverable Protection Option



Comprehensive Protection Feature:

VCC Over Voltage Protection (VOVP)

Line Over Voltage Protection (LOVP)

Over Temperature Protection (OTP)

Over Load Protection (OLP)



Internal Soft Start Function During Start-up



500mA Gate Output Current Capability



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



Halogen and Antimony Free.

“Green” Device (Note 3)

Pin Assignments

(Top View)

SO-8

Applications



Switching AC-DC Adapter



LCD Monitor/TV Power



Open Frame Switching Power Supply

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 more 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.

1

2

3

4

8

7

6

5

GND

FB

BOK

RI

GATE

VCC

SENSE

ADJ