Datasheet Summary
Economy Primary Side Controller application INFO available
UCC1809-1/-2 UCC2809-1/-2 UCC3809-1/-2
Features
- User Programmable Soft Start With
Active Low Shutdown
- User Programmable Maximum Duty Cycle
- Accessible 5V Reference
- Undervoltage Lockout
- Operation to 1MHz
- 0.4A Source/0.8A Sink FET Driver
- Low 100µA Startup Current
PART
TURN ON TURN OFF
NUMBER THRESHOLD THRESHOLD
UCCX809-1
10V
8V
UCCX809-2
15V
8V
DESCRIPTION
The UCC3809 family of BCDMOS economy low power integrated circuits contains all the control and drive circuitry required for off-line and isolated DC-to-DC fixed frequency current mode switching power supplies with minimal external parts count. Internally...