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EM8822A Datasheet

Single stage Buck/Buck-Boost PFC Controller

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EM8822A
Single stage Buck/Buck-Boost PFC Controller for LED Lighting
Applications
General Description
EM8822A is a voltage mode Buck/Buck-boost PFC
controller operating at transition mode. It keeps
the Buck / Buck-boost converter in constant on
time operation to achieve high power factor.
This device provides protections of internal soft
start, over voltage protection, over current
protection and thermal shutdown. It can minimize
the external components counts, and makes the
design easy.
This part is available in SOP-23-6 package.
Applications
General LED lighting applications
Bulb lamp
Tube lamp
PAR lamp
Pin Configuration
Ordering Information
Part Number Package
EM8822AJ SOP-23-6
Remark
EM8822A
Features
Single stage Buck/Buck-Boost PFC controller
Voltage Mode Control
Valley turn on of the MOSFET to achieve
lower switching loss
Low Start Up Current : 6uA typical
Maximum gate drive voltage at 19.5V
Over Voltage Protection for IC bias voltage
LED Open/Short Protection
Internal over-thermal Shutdown
2014/03/21
preliminary
1
Excelliance MOS
Excelliance MOS



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