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

Technical data sheets
Legislation and Compliance
COO (Country of Origin): MX
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
Height 1.58mm
Maximum Operating Temperature +85 °C
Length 8.65mm
Width 3.91mm
Minimum Operating Temperature -40 °C
Dimensions 8.65 x 3.91 x 1.58mm
Price (Excl VAT) Each (In a Tube of 50)
R 19.961
(exc. VAT)
R 22.955
(inc. VAT)
Per unit
Per Tube*
50 - 200
R 19.961
R 998.05
250 - 450
R 19.561
R 978.05
500 - 1200
R 18.975
R 948.75
1250 +
R 18.216
R 910.80
*price indicative
Due to temporarily constrained supply, RS is unable to accept backorders at this time