Texas Instruments UC3843AN 5 PWM Controller, 500 kHz 125 V 8-Pin, PDIP

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Subtotal (1 pack of 5 units)*

£5.40

(exc. VAT)

£6.50

(inc. VAT)

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  • 90 left, ready to ship
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  • Plus 15 left, shipping from 28 April 2026
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Per unit
Per Pack*
5 - 20£1.08£5.40
25 +£0.84£4.20

*price indicative

RS Stock No.:
526-842
Mfr. Part No.:
UC3843AN
Brand:
Texas Instruments
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Brand

Texas Instruments

Product Type

PWM Controller

Maximum Switching Frequency

500kHz

Supply Current

4mA

Output Current

1A

Zero Power Detection

No

Mount Type

Through Hole

Minimum Supply Voltage

-55V

Package Type

PDIP

Maximum Supply Voltage

125V

Pin Count

8

Maximum Duty Cycle

100%

Minimum Operating Temperature

0°C

Maximum Operating Temperature

70°C

PWM Controller Type

Current Mode

Length

9.81mm

Standards/Approvals

No

Height

4.57mm

Series

UC

Automotive Standard

No

Flyback Controller, Current Control, UC18/UC28/UC38 Series, Texas Instruments


The isolated-flyback power supply controller provides Constant-Voltage (CV) and Constant-Current (CC) output regulation to improve transient response to large load steps. Primary-Side Regulation (PSR) eliminates the need for an Optocoupler.

Flyback Controllers, Texas Instruments


Current-Mode and Voltage-Mode PWM Controller

Primary-Side Regulation

Peak Power Mode

Low Power

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