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AP3706 Datasheet(PDF) 1 Page - BCD Semiconductor Manufacturing Limited

Part # AP3706
Description  PRIMARY SIDE CONTROL IC FOR OFF-LINE BATTERY CHARGERS
PDF  2 Pages
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Manufacturer  BCDSEMI [BCD Semiconductor Manufacturing Limited]
Direct Link  http://www.bcdsemi.com
Logo BCDSEMI - BCD Semiconductor Manufacturing Limited

AP3706 Datasheet(HTML) 1 Page - BCD Semiconductor Manufacturing Limited

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Description
The AP3706 is a high performance AC/DC power supply
controller for battery charger and adapter applications.
The device uses Pulse Frequency Modulation (PFM)
method to build discontinuous conduction mode (DCM)
flyback power supplies.
The AP3706 provides constant voltage, constant current
(CV/CC) regulation without requiring an opto-coupler
and secondary control circuitry. It also eliminates the need
of loop compensation circuitry while maintaining stabil-
ity.
The AP3706 achieves excellent regulation and high power
efficiency, the no-load power consumption is less than
200mW at 265VAC input.
Features
·
Primary Side Control for Rectangular Constant
Current and Constant Voltage Output
·
Eliminates Opto-Coupler and Secondary CV/CC
Control Circuitry
·
Eliminates Control Loop Compensation Circuitry
·
Flyback Topology in DCM Operation
·
Random Frequency Modulation to Reduce System
EMI
·
Valley Turn on of External Power NPN Transistor
·
Built-in Soft Start
·
Open Circuit Protection
·
Over Voltage Protection
·
Short Circuit Protection
Applications
·
Adapters/Chargers for Cell/Cordless Phones, PDAs,
MP3 and Other Portable Apparatus
·
Standby and Auxiliary Power Supplies
Benefits
·
High Power Efficiency for Battery Chargers
·
Low Total Cost
Parametric Table
Startup Current (µA)(Typ)
70
UVLO Threshold on/off (V) (Typ)
18.5/7.4
Operating Current (µA) (Typ)
680
Standby Power (W)
<0.3
Package
SOIC-8
Additional Available Materials
·
Samples
·
Preliminary Datasheet
·
ESD Report
·
Demo Board
·
Application Note
Mar. 2008
BCD Semiconductor Manufacturing Limited
Product Brief
PRIMARY SIDE CONTROL IC FOR OFF-LINE BATTERY CHARGERS
AP3706


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