AP3106 Datasheet, PDF (1/10 Pages) BCD Semiconductor Manufacturing Limited – HIGH VOLTAGE GREEN MODE PWM CONTROLLER

NOT RECOMMENDED FOR NEW DESIGN
USE AP3125 Series
A Product Line of
Diodes Incorporated
AP3106
HIGH VOLTAGE GREEN MODE PWM CONTROLLER
Description
Features
The AP3106 is a high voltage start-up, current mode PWM controller
with green-mode power-saving operation.
The PWM switching frequency at normal operation is externally
programmable and trimmed to a narrow range.
The AP3106 integrates a proprietary internal frequency dithering
function that helps to reduce EMI emission of a power supply with
minimum line filters used.
To minimize the standby power consumption, a proprietary adaptive
green-mode function is available to implement frequency modulation
under light-load conditions. To avoid acoustic noise problems, the
minimum PWM frequency is set at about 26kHz.
The AP3106 integrates a lot of functions such as the Lead-Edge
Blanking (LEB) of the current sensing, internal slope compensation,
line compensation, and several protection features that include cycle-
by-cycle current limit (OCP), over voltage protection, OTP, OLP and
brownout protection.
The AP3106 is available in SO-7 package to realize a compact size.
Pin Assignments
(Top View)
 High-voltage Start-up Circuit
 Low Start-up Current: 15A (Max.)
 Current Mode Control
 Programmable PWM Switching Frequency
 Non-audible-noise Green Mode Control
 LEB (Leading-Edge Blanking) on SENSE Pin
 Fast OCP for Abnormal Short Circuit
 Frequency Linearly Decreasing at Light Load
 Soft Driving
 Internal Slope Compensation
 Built-in Brownout Protection
 Useful Pin Fault Protection
CS Pin Floating
RI Pin Short to Ground
RI Pin Floating
 Comprehensive System Protection
VCC Over Voltage Protection (VOVP)
Over Temperature Protection (OTP)
Constant Over Load Protection (COLP)
Short Circuit Protection (SCP)
 Compact Size SO-7 Package
 Totally Lead-free & Fully RoHS Compliant (Notes 1 & 2)
 Halogen and Antimony Free. “Green” Device (Note 3)
RI ₁
FB 2
SENSE ₃
GND 4
7 HV
6 VCC
5 GATE
Applications
 Switching AC/DC Adaptor
 LCD Monitor/TV Power
 Open Frame Switching Power Supply
SO-7
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.
AP3106
Document number: DS37450 Rev. 2 - 3
1 of 10
www.diodes.com
February 2015
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