WS2596B Datasheet, PDF (1/9 Pages) List of Unclassifed Manufacturers – High Efficiency Charger Control IC

WS2596B Product Description
WS2596B High Efficiency Charger Control IC
Features
 Standby power<75mw
 Low stat-up current,<1uA
 High efficiency(Meet Energy Star 6.0)
 Internal random Frequency jitter to Reduce System EMI
 Internal leading edge blanking
 Cycle by cycle current limit
 VCC UVLO and Over Voltage Protection
 ±5% CC、CV accuracy
 Good dynamic transient(10%--any load)
 CS pin and CS resistor Open/Short protection
 FB Upper/Lower resistor Open/Short protection
 IC GND open protection
 Output over voltage protection
 Output under voltage protection
 Over temperature protection
 Intelligent temperature regulation (When the
temperature over 133℃，the output power will be
reduced.)
 Secondary SBD short protection
 Transformer saturation protection
 CS double peak threshold，suppress audio noise
 Slope drive technology，reduce driving loss
 External proprietary adjustable cable voltage drop
Compensation
 Internal proprietary adjustable line compensation for CC
Variation
 Internal BJT
 SOP-7 package
Description
WS2596B 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.
WS2596B provides accurate constant voltage, constant
current (CV/CC) regulation without requiring an opto-coupler
and the secondary control circuitry. It also eliminates the need
of loop compensation circuitry while maintaining good stability.
WS2596B can achieve excellent regulation and high average
efficiency(meet Energy star 6.0), yet meets standby power
less than 75mW.
WS2596B has a proprietary cable voltage drop
compensation function. Internal random frequency
modulation to reduce system EMI.
WS2596B is available in SOP-7 package.
Typical Appliction
 Adapters/Chargers for Cell/cordless Phones, PDAs,
MP3 and Other Portable Devices
 LED driver
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