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データシート AP3105R ( PDF ダウンロード )


AP3105R 電子部品 詳細情報 ( 特性, スペック, ピン接続図 )

部品番号 AP3105R
部品説明 COST EFFECTIVE GREEN PWM CONTROLLER
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AP3105R Datasheet, ピン配置, 機能
A Product Line of
Diodes Incorporated
AP3105/V/L/R
COST EFFECTIVE GREEN PWM CONTROLLER
Description
Pin Assignments
The AP3105/V/L/R is a low startup current, current mode PWM
controller with green-mode power-saving operation. The PWM
switching frequency at normal operation is set with 65kHz typically
and the dithering of frequency will also improve the EMI feature.
When the load decreases, the frequency will reduce and when at a
very low load, the IC will enter the „burst mode‟ to minimize switching
loss.
About 20kHz frequency switching is to avoid the audible noise as well
as reducing the standby loss. The skip mode point can be adjusted
through the external resistor connected to the current sense resistor.
The AP3105/V/L/R features a lot of functions such as the Leading-
Edge Blanking (LEB) of the current sensing, internal slope
compensation and several protection functions including cycle-by-
cycle current limit (OCP), VCC Over Voltage Protection (VOVP), OTP
and OLP protection. The versatile latch function can be set by the
customer through few components.
(Top View)
Pin 1 Mark
GND 1
FB 2
CTRL 3
6 GATE
5 VCC
4 SENSE
SOT-23-6 (K Package)
This IC is available in SOT-23-6 package.
Features
Very Low Start-up Current
Current Mode Control
Non-audible-noise Green-mode Control
Skip Mode Adjustable
Internal Slope Compensation
Soft Start During Startup Process
Frequency Fold Back for High Average Efficiency
Secondary Short Winding Protection with FOCP
Soft Switching for Reducing EMI
VCC Maintain Mode
Latch Function for OTP/OVP
Useful Pin Fault Protection:
SENSE Pin Floating
CTRL Pin Short to Ground
FB/Opto-coupler Open/Short
Comprehensive System Protection Feature:
VCC Over Voltage Protection (VOVP)
Over Load Protection (OLP)
Mini Size with Packages
Pin to Pin Compatible with AP3103
Applications
Switching AC-DC Adapter/Charger
ATX/BTX Auxiliary Power
Set-top Box(STB) Power Supply
Open Frame Switching Power Supply
AP3105/V/L/R
Document number: DS36927 Rev. 2 - 2
1 of 13
www.diodes.com
February 2014
© Diodes Incorporated





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