UC1843J Texas Instruments - Yeehing Electronics

Current Mode PWM Controller

Pricing (USD)

Quantity	Unit Price
1 — 99	10.423
100 — 249	9.105
250 — 999	7.02
1,000 +	4.40

The above prices are for reference only.

Specifications

For more information, please refer to datasheet

Documents

UC1843J 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.