Wing Shing Computer Components KA3842A
The KA3842A KA3842AM are fixe frequency current-mode PWM controller. They are specially designed for OFF−Line and DC−to−DC converter applications with minimal external components. These integrated circuits feature a trimmed oscillator for precise duty cycle control, a temperature compensated reference, high gain error amplifier, current sensing comparator, and a high current totempole output ideally suited for driving a power MOSFET.| Part No. | KA3842A |
|---|---|
| Datasheet | KA3842A Download |
| Manufacturer |  Wing Shing Computer Components |
| Description | PWM CONTROLLER |
| Buy | Stock & Price |
FEATURES
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● Low Start-Up Current Maximum Duty Cycle U/V Lockout With Hysteresis Operating Freguency Up To 500khz SO-8 DIP-8 ordering information Device KA3842AM KA3842AMM KA3842AN KA3842AMN Package SO-8 SO-8 DIP-8 DIP-8 Operating temperature 0 to +700C " " " BLOCK DIAGRAM
ABSOLUTE MAXIMUM RATINGS
Characteristic Supply Voltage Output Current Analog Inputs Error Amp Output Sink Current Power Dissipation (TA=250C) Symbol VCC IO VI ISINK (E.A) PO Value 30 ±1 −0.3 to VCC 10 1 Unit V A V mA W Wing Shing Computer Components Co., (H.K.)Ltd. Homepage: Tel:(852)2341 9276 Fax:(852)2797 8153 E-mail: wsccltd@hkstar.com 1 KA3842A/KA3842AM Electrical characteristics (*VCC=15V, RT=10kΩ , CT=3.3nF, TA=00C to +700C, unless otherwise specified) Characteristics Reference Section Reference Output Voltege Line Regulation Load Regulation Short Circit Output Current Oscillator Section Oscillation Freguency Frequency Change with Voltage Oscillator Amplitude Error Amplifier Section Input Bias Current Input...
