Texas Instruments UC2843D, PWM Current Mode Controller, 1 A, 500 kHz 14-Pin SOIC

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Product Details

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

Attribute Value
Number of PWM Outputs 1
Control Method Current
Topology Boost, Flyback, Forward
Rise Time 50ns
Fall Time 50ns
Maximum Duty Cycle 100%
Maximum Switching Frequency 500 kHz
Mounting Type Surface Mount
Package Type SOIC
Pin Count 14
Output Current 1 A
Maximum Operating Temperature +85 °C
Height 1.58mm
Dimensions 8.65 x 3.91 x 1.58mm
Width 3.91mm
Minimum Operating Temperature -40 °C
Length 8.65mm
80 Available in 4-6 working days for collection or delivery to major cities, unless heavy, bulky, hazardous or lithium metal (T&C’s Apply)
Price (Excl VAT) Each (In a Pack of 5)
R 23.486
(exc. VAT)
R 27.009
(inc. VAT)
Per unit
Per Pack*
5 - 120
R 23.486
R 117.43
125 - 495
R 23.016
R 115.08
500 - 1245
R 22.326
R 111.63
1250 - 2495
R 21.432
R 107.16
2500 +
R 20.574
R 102.87
*price indicative
Not Available for premium delivery
Due to temporarily constrained supply, RS is unable to accept backorders at this time
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