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

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Subtotal (1 tube of 75 units)*

$118.05

(exc. VAT)

$135.75

(inc. VAT)

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  • Plus 75 unit(s) shipping from 15 December 2025
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Units
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Per Tube*
75 - 300$1.574$118.05
375 +$1.417$106.28

*price indicative

RS Stock No.:
922-3451
Mfr. Part No.:
UC3843AD8
Brand:
Texas Instruments
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Brand

Texas Instruments

Maximum Switching Frequency

500 kHz

Output Current

1 A

Number of Outputs

1

Control Method

Current

Fall Time

50ns

Mounting Type

Surface Mount

Rise Time

50ns

Package Type

SOIC

Topology

Boost, Buck, Flyback, Forward

Pin Count

8

Dimensions

4.9 x 3.91 x 1.58mm

Maximum Duty Cycle

100%

PWM Controller Type

Current Mode

Length

4.9mm

Width

3.91mm

Height

1.58mm

Maximum Operating Temperature

+70 °C

Minimum Operating Temperature

0 °C

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.

For these non-cancellable (NC), and non-returnable (NR) products, Terms and Conditions apply.



Flyback Controllers, Texas Instruments


Current-Mode and Voltage-Mode PWM Controller
Primary-Side Regulation
Peak Power Mode
Low Power

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