Part Number : SDC2921
Function : Voltage Mode PWM Controller
Package : DIP 16 Pin
Manufacturers : Shaoxing Devechip Microelectronics ( http://www.sdc-semi.com/ )
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Description
The SDC2921 is a Pulse–Width Modulation (PWM) control circuit with complete protection circuits for the SMPS (Switching Mode Power Supply). It contains various functions, can minimize external components of switching power supply systems in personal computer.
Pinout
Features
1. Pulse width modulation circuit.
2. 3.3V, 5V, 12V overvoltage / undervoltage protection
3. Over power protection.
4. 280ms PG delay.
5. 280ms UVP delay.
6. PWM open-drain output.
7. Remote control.
8. Built-in soft-start.
9. High integration, fewer external components.