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

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Subtotal (1 pack of 5 units)*

PHP258.97

(exc. VAT)

PHP290.045

(inc. VAT)

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Last RS stock
  • Plus 15 unit(s) shipping from February 23, 2026
  • Final 665 unit(s) shipping from March 02, 2026
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RS Stock No.:
661-5314
Mfr. Part No.:
UC3842AD8
Manufacturer:
Texas Instruments
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Brand

Texas Instruments

Maximum Switching Frequency

500kHz

Product Type

PWM Controller

Output Voltage

5.2 V

Supply Current

4mA

Zero Power Detection

No

Output Current

1A

Number of Outputs

1

Mount Type

Surface

Minimum Supply Voltage

-55V

Package Type

SOIC

Pin Count

8

Maximum Supply Voltage

125V

Minimum Operating Temperature

0°C

Maximum Duty Cycle

100%

Maximum Operating Temperature

70°C

PWM Controller Type

Current Mode

Length

4.9mm

Standards/Approvals

RoHS

Series

UC

Width

3.91 mm

Height

1.58mm

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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