UC2843D8 Texas Instruments - Yeehing Electronics

30-V, 1-A, 500KHz current mode PWM controller with 8.4V/7.6V UVLO 100% duty cycle, -40C to 85C

Pricing (USD)

Quantity	Unit Price
1 — 99	1.235
100 — 249	0.95
250 — 999	0.7
1,000 +	0.35

The above prices are for reference only.

Specifications

For more information, please refer to datasheet

Documents

UC2843D8 Datasheet

More Information

The UCx84x series of control integrated circuits provide the features that are necessary to implement off-line or DC-to-DC fixed-frequency current-mode control schemes, with a minimum number of external components. The internally implemented circuits include an undervoltage lockout (UVLO), featuring a start-up current of less than 1 mA, and a precision reference trimmed for accuracy at the error amplifier input. Other internal circuits include logic to ensure latched operation, a pulse-width modulation (PWM) comparator that also provides current-limit control, and a totem-pole output stage that is designed to source or sink high-peak current. The output stage, suitable for driving N-channel MOSFETs, is low when it is in the off state.