ATC9501 Datasheet – SOP 8, Power Supply Control IC – Anachip

Part Number : ATC9501

Function : Power Supply Control IC

Package :  SOP 8 Pin type

Manufactures : Anichip, Txpower( Http:// )


ATC9501 Power Supply Control IC Anachip



The ATC9501 is suitable for low cost, high precision constant current (CC / CV) applications. Constant current constant voltage ring without optocoupler, TL431 and compensation circuit, the internal integration of 900V power tube, reducing system cost.

ATC9501 can meet the output voltage ± 5% of the production accuracy. Very low start-up current, quasi-valley detection can easily meet EPA2.0 energy efficiency requirements. Output voltage compensation cable can be adjusted according to customer requirements, greatly facilitate the customer’s system design.

ATC9501 also integrates a variety of protection features: undervoltage lockout, leading edge blanking, overvoltage protection, overcurrent protection, loop open circuit protection, output short circuit protection, greatly increasing the stability of the system.


ATC9501 datasheet pinout


1. Constant – voltage (CV) and constant – current (CC) control of primary – side feedback
2. 3% of the constant voltage accuracy, 2% of the constant current accuracy
3. Energy saving mode: Pulse frequency modulation control mode (PFM)
4. Built-in 900V power switch
5. Built-in jitter reduces EMI
6. Cycle-by-cycle current limit
7. Built-in soft start
8. Low starting current (5uA)
9. Feedback overvoltage protection (OVP)
10. Undervoltage Lockout (UVLO)
11. Over-temperature protection (OTP)
12. Output short circuit protection
13. Feedback loop open circuit protection
14. Adjustable output line compensation voltage


ATC9501 Datasheet