| Distributor | Stock | Pricing | MOQ | PKG | Lead Time | Date Code | On Order Quantity | On Order Delivery | |
|---|---|---|---|---|---|---|---|---|---|
|
2,000 pcs
|
2000 pcs | On Request | 1 | On Request | On Request | 1044+ | On Request | On Request |
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The UCC3809PWTR-1 from Texas Instruments is an integrated circuit designed for efficient power supply applications. This economy primary side controller is suitable for both off-line and isolated DC-to-DC fixed frequency current mode switching power supplies, requiring minimal external components.
Key features include operation up to 1MHz, a wide input voltage range of 8V to 19V, and a maximum duty cycle of 70%. It incorporates user-programmable soft start, active low shutdown, and an accessible 5V reference. The device also includes undervoltage lockout (UVLO) to ensure reliable startup and operation.
This controller is housed in an 8-TSSOP surface mount package, making it ideal for applications where board space is limited. The output stage is designed to sink or source peak current, suitable for driving N-Channel MOSFETs.
Applications for the UCC3809PWTR-1 include various off-line power supplies and isolated DC-to-DC converters where cost-effectiveness and minimal component count are important design considerations.
| Qty | Low | High |
|---|---|---|
| 1+ | $0.75 | $0.75 |
Estimated market price range - modelled values for guidance only, not live distributor offers.
8V to 19V.
8-TSSOP (0.173", 4.40mm Width) surface mount.
-55°C to 150°C (TJ).
Boost, buck, flyback, and forward.
1 MHz.
70%.
Frequency control and soft start.