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EM8636 Datasheet

PWM Controller

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EM8636
Green mode PWM with External Over Temperature Protection
General Description
EM8636 is a high performance, low startup
current, low cost, current mode PWM controller
with green mode power saving. The EM8636
integrates functions of Soft Start(SS), Under Voltage
Lockout(UVLO), Leading Edge Blanking(LEB),
internal and external Over Temperature
Protection(OTP), internal slope compensation. The
EM8636 also features more protection like Over
Load Protection(OLP) and Over Voltage
Protection(OVP) to prevent circuit damage
occurred under abnormal conditions.
The EM8636 provides the users a superior
AC/DC flyback power application of high efficiency,
excellent EMI performance, low external
component counts and lower cost solution.
Ordering Information
Part Number
EM8636J
Package
SOT-23-6
Remark
Typical Application Circuit
Features
Ultra Low Start Up Current (6uA)
Current Mode Control
Soft Start Function
Built-in Slope Compensation
Internal Leading-edge Blanking
Over Voltage Protection (OVP) on VDD pin
Over Load Protection (OLP)
Cycle-by-cycle Current Limit
Feedback Open Protection
External Over Temperature Protection (OTP)
Internal Over Temperature Protection (OTP)
Constant Output Power Limit (Full AC Input
Range)
Internal Frequency Jittering for Excellent EMI
Performance
Gate Voltage Clamping
Applications
Open-Frame SMPS
General Adapter and Charger
LCD Monitor Power
AC
INPUT
EMI
Filter
+ DC
OUTPUT
LATCH
COMP
VDD
EM8636
GATE
CS
GND
2014/3/21
A.1
1
Excelliance MOS
Excelliance MOS



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