Texas Instruments UC3845AN 5 PWM Controller, 500 kHz 125 V 8-Pin, PDIP

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$12.77

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$14.045

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  • Plus 170 unit(s) shipping from 02 March 2026
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Units
Per unit
Per Pack*
5 - 10$2.554$12.77
15 - 70$2.52$12.60
75 +$2.072$10.36

*price indicative

Packaging Options:
RS Stock No.:
660-8085
Mfr. Part No.:
UC3845AN
Brand:
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

5

Mount Type

Through Hole

Minimum Supply Voltage

-55V

Package Type

PDIP

Pin Count

8

Maximum Supply Voltage

125V

Maximum Duty Cycle

50%

Minimum Operating Temperature

0°C

Maximum Operating Temperature

70°C

PWM Controller Type

Current Mode

Height

4.57mm

Length

9.81mm

Standards/Approvals

No

Series

UC

Width

6.35 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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