Texas Instruments UC3843AD8 5 PWM Controller, 500 kHz 125 V 8-Pin, SOIC

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Subtotal (1 pack of 5 units)*

PHP255.78

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PHP286.475

(inc. VAT)

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  • Plus 5 left, shipping from March 30, 2026
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Units
Per Unit
Per Pack*
5 - 20PHP51.156PHP255.78
25 - 95PHP49.622PHP248.11
100 - 245PHP48.132PHP240.66
250 - 495PHP46.688PHP233.44
500 +PHP45.286PHP226.43

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Packaging Options:
RS Stock No.:
661-5333
Mfr. Part No.:
UC3843AD8
Manufacturer:
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

Surface

Package Type

SOIC

Minimum Supply Voltage

-55V

Maximum Supply Voltage

125V

Pin Count

8

Minimum Operating Temperature

0°C

Maximum Duty Cycle

100%

PWM Controller Type

Current Mode

Maximum Operating Temperature

70°C

Standards/Approvals

No

Height

1.58mm

Series

UC

Length

4.9mm

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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