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

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Subtotal (1 pack of 5 units)*

£3.07

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£3.685

(inc. VAT)

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  • 675 unit(s) shipping from 09 March 2026
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Per Pack*
5 - 20£0.614£3.07
25 - 95£0.54£2.70
100 - 245£0.486£2.43
250 - 495£0.474£2.37
500 +£0.462£2.31

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RS Stock No.:
661-5314
Mfr. Part No.:
UC3842AD8
Brand:
Texas Instruments
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Brand

Texas Instruments

Product Type

PWM Controller

Maximum Switching Frequency

500kHz

Supply Current

4mA

Output Voltage

5.2 V

Output Current

1A

Zero Power Detection

No

Number of Outputs

1

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

RoHS

Length

4.9mm

Series

UC

Height

1.58mm

Width

3.91 mm

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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