Texas Instruments UC3842AD8 1 PWM Controller, 500 kHz 125V 8-Pin, SOIC

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Subtotal (1 pack of 5 units)*

SGD7.70

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SGD8.40

(inc. GST)

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Last RS stock
  • Plus 50 unit(s) shipping from 01 June 2026
  • Final 525 unit(s) shipping from 08 June 2026

Units
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Per Pack*
5 - 10SGD1.54SGD7.70
15 - 20SGD1.484SGD7.42
25 +SGD1.39SGD6.95

*price indicative

RS Stock No.:
661-5314
Mfr. Part No.:
UC3842AD8
Manufacturer:
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

Surface

Minimum Supply Voltage

-55V

Package Type

SOIC

Maximum Supply Voltage

125V

Pin Count

8

Minimum Operating Temperature

0°C

Maximum Duty Cycle

100%

Maximum Operating Temperature

70°C

PWM Controller Type

Current Mode

Standards/Approvals

RoHS

Series

UC

Height

1.58mm

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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