AUK Corporation S3842
The S3842, high performance current mode controller, Provides the necessary features to off-line and DC-DC fixed frequency current control applications offering the designer a cost effective solution with minimal external components.FEATURES
● Optimized for off-line control● Low start up and operating current
● Pulse by pulse current limiting
● Enhanced load response characteristic
● Current mode operation to 500 ㎑
● Under voltage lockout with 6V hysteresis
● Internally trimmed bandgap reference about 5V
● Automatic feed forward compensation Ordering Information Type NO. S3842 Marking S3842 Package Code SOP-8 Outline Dimensions unit : mm PIN Connections 1. Output / Compensation 2. Voltage feedback. Input 3. Current sense Input 4. Rt/Ct 5. GND 6. Output 7. Vcc 8. Vref KSI-8006-003 1 S3842
ABSOLUTE MAXIMUM RATINGS
Characteristic Supply voltage Current Sense and Vfb Input Total Power Supply and Zener Current Output Sink of Source Current Error AMP Output Sink Current Operating Ambient Temperature Storage Temperature Range Power Dissipation at Ta≤ 50°C Ta=25°C Symbol Vcc VIN ICC+ IZ Io Ieo Ta Tstg Pd Ratings 30 -0.3 to Vcc 30 1 10 0 to 70 -65 to 150 1 Unit V V mA A mA °C °C W note) All voltages are with respect to PIN5, and current are positive into the specified pin.