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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Limited stock
  • Plus 90 left, shipping from 20 April 2026
  • Plus 40 left, shipping from 20 April 2026
  • Plus 15 left, shipping from 27 April 2026
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Units
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

Maximum Switching Frequency

500kHz

Product Type

PWM Controller

Supply Current

4mA

Output Current

1A

Zero Power Detection

No

Mount Type

Through Hole

Package Type

PDIP

Minimum Supply Voltage

-55V

Pin Count

8

Maximum Supply Voltage

125V

Maximum Duty Cycle

100%

Minimum Operating Temperature

0°C

Maximum Operating Temperature

70°C

PWM Controller Type

Current Mode

Height

4.57mm

Length

9.81mm

Series

UC

Standards/Approvals

No

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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