PJ3842B
feature a trimmed oscillator for precise duty cycle control, a temperature pensated reference, high gain error amplifier, current sensing parator,and a high current totem pole output ideally suited for driving a power MOSFET. Also included are protective features consisting of input and reference undervoltage lockouts each with hysteresis,
FEATURES
DIP-8 SOP-8
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Trimmed Oscillator Discharge Current for Precise Duty Cycle Control Current Mode Operation to 500KHz Automatic Feed Forward pensation Latching PWM for Cycle-By-Cycle Current Limiting Internally Lockout High Current Totem Pole Output Undervoltage Lockout with Hystersis Low Start-Up and Operating Current Trimmed Reference with Undervoltage
Pin：1. pensation Pin：2. Voltage Feedback Pin：3. Current Sense Pin：4. RT/CT
5. Gnd
6. Output 7. Vcc 8. Vref
ORDERING INFORMATION
Device PJ3842/3843BCD PJ3842/3843BCS SIMPLIFIED BLOCK DIAGRAM Operating Temperature (Ambient) -20℃ TO +85℃ Package DIP-8 SOP-8
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