Texas Instruments UC2843AD8, PWM Controller, 500 kHz 8-Pin, SOIC

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PHP375.14

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PHP420.155

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  • 1,050 unit(s) shipping from December 18, 2025
  • Plus 450 unit(s) shipping from December 25, 2025
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5 - 20PHP75.028PHP375.14
25 - 95PHP60.146PHP300.73
100 - 245PHP60.074PHP300.37
250 - 495PHP46.154PHP230.77
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Packaging Options:
RS Stock No.:
620-0458
Mfr. Part No.:
UC2843AD8
Manufacturer:
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, Flyback, Forward

Pin Count

8

Dimensions

4.9 x 3.91 x 1.58mm

Maximum Duty Cycle

100%

Length

4.9mm

PWM Controller Type

Current Mode

Width

3.91mm

Height

1.58mm

Maximum Operating Temperature

+85 °C

Minimum Operating Temperature

-40 °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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