TM0265 PDF Datasheet – Off-line Switching Power Supply Current

Part Number: TM0265, TMO265

Function: Off-line Switching Power Supply Current Mode Control Circuit

Package: DIP 8 Pin

Manufacturer: Titan Micro Electronics


TM0265 datasheet


The TM0265 chip integrates a high-voltage POWER MOS to meet the requirements of low power consumption. In standby mode, reduce the power consumption by reducing the operating frequency and output a stable operating voltage. The frequency reduction is limited to below 20KHz/21.5KHz to avoid audio noise. In failure modes such as open loop, overvoltage, or overload caused by short circuit, the chip switches the chip to restart mode through an internal protection circuit. Through internal precision current peak control, the size of the transformer and the secondary diode can be made smaller, thereby reducing the cost of the entire system. […]


TM0265 pinout


1. Integrated 650v high voltage POWERMOS device

2. User-defined soft start to reduce starting shock

3. Working current can be adjusted by external resistance

4. Input undervoltage protection

5. Built-in overheat protection

6. Built-in overload protection and open loop protection

7. Automatic restart, overvoltage protection during automatic restart

8. Frequency adjustment to reduce EMI

9. 100KHz switching frequency, maximum duty ratio 72%

10. Low-power standby mode to meet EU requirements

11. Simple application circuit design

12. Tolerance of output current <±5%

3 page

TM0265 PDF Datasheet