Current Mode PWM Controller
Product：AP8269
1、Product application

2、General Description
AP8269 is a highly integrated current mode PWM control IC optimized for highperformance, low standby power and cost effective offline flyback converter applications. At no load or light load condition, the IC operates in extended ‘burst mode’ to minimize switching loss. Lower standby power and higher conversion efficiency is thus achieved. Theinternal slope compensation improves system large signal stability and reduces the possible subharmonic oscillation at high PWM duty cycle output. Leading-edge blanking on current sense(CS) input removes the signal glitch due to snubber circuit diode reverse recovery and thus greatly reduces the externalcomponent count and system cost in the design. Excellent EMI performance is achievedwithproprietary frequencyshuffling technique together with soft switching control at the totem pole gate drive output.
3、 Features
Frequency jitter function to improve EMI performance of
power supply
No-audible-noise green mode Control
External Programmable PWM Switching Frequency
nternal Slope Compensation
Low VCC Startup Current and Operating Current
Leading Edge Blanking
UVLO
Gate Max Output Voltage Clamp at 18V
Overload Protection (OLP)
Line Compensation Over Current Protection (OCP)
With or without VCC OVP
External programmable OTP
4、Applications
Battery Charger
Power Adaptor
Set-Top Box Power Supplies
Open-frame SMPS
5、Package/Order Information

6、Typical Application


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