Part Number: SD6830
Function: CURRENT MODE PWM+PFM CONTROLLER WITH BUILT-IN HIGH VOLTAGE MOSFET
Package: DIP 8 Pin type
Manufacturer: Hangzhou Silan Microelectronics ( http://www.silan.com.cn/ ), AUK
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Description
The SD6830 is current mode PWM+PFM controller with built-in oscillator, high voltage MOSFET and frequency reduction function. It features perfect self recovery function. It is used in typical flyback circuit and composed SC/DC converter. It provides 12W continuous output power with wide voltage input of 85V-265V.
Block Diagram
Features
1. Built-in oscillator
2. Built-in 700V high voltage power switch
3. Fast high voltage start
4. Low start current and low operating current
Pin number Pin name I/O Functional description
1 OB I Start power input, external start resistance
2 VCC I Power input pin
3 GND I Ground pin
4 NC — Dangling feet
5 FB I/O Feedback foot
6 IS I/O Cycle by cycle current sampling pin, external current sampling resistor
7 , 8 OC O High voltage switch output pin, connected to transformer primary coil Functional
SD6830 Equivalent
SD6830 Is used in off-line switching power supply integrated circuits. The controller includes an oscillation frequency generator and various protection functions. by IS The terminal resistance can
adjust the limit peak current. At light load, the circuit adopts green mode, which can effectively reduce the standby power consumption of the circuit. Protection functions include: undervoltage, overvoltage,
overload, short circuit and temperature protection.
SD6830 Datasheet
