UC3843N


YeeHing #: Y012-UC3843N
Inventory: 5800

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Description

UC3843N Texas Instruments - Yeehing Electronics

Single ended 500KHz current mode PWM controller with 8.4V/7.6V UVLO 100% duty cycle, 0C to 70C

Pricing (USD)

Quantity Unit Price
1 — 99 1.018
100 — 249 0.783
250 — 999 0.576
1,000 + 0.29

The above prices are for reference only.

Specifications

Manufacturer Texas Instruments
Product Category Switching Controllers
RoHS Y
Topology Boost, Buck, Flyback, Forward
Number of Outputs 1 Output
Switching Frequency 450 kHz
Duty Cycle - Max 100 %
Output Current 1 A
Minimum Operating Temperature 0 C
Maximum Operating Temperature + 70 C
Mounting Style Through Hole
Package / Case PDIP-8
Packaging Tube
Operating Temperature Range 0 C to + 70 C
Series UC3843
Type Current Mode PWM Controllers
Brand Texas Instruments
Fall Time 50 ns
Product Type Switching Controllers
Rise Time 50 ns
Factory Pack Quantity 50
Subcategory PMIC - Power Management ICs
Unit Weight 0.018646 oz

For more information, please refer to datasheet

Documents

UC3843N 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.

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