AP3102 Datasheet, PDF (1/14 Pages) Diodes Incorporated – GREEN MODE PWM CONTROLLER

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AP3102/V/L
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: 5μA 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)
GND 1
FB 2
BOK 3
RI 4
SO-8
Applications
 Switching AC-DC Adapter
 LCD Monitor/TV Power
 Open Frame Switching Power Supply
8 GATE
7 VCC
6 _SENSE
5 ADJ
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.
AP3102/V/L
Document number: DS37419 Rev.2 - 2
1 of 14
www.diodes.com
July 2014
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