STMicroelectronics UC3843BN, PWM Current Mode Controller, 1 A, 500 kHz 8-Pin PDIP

Technical data sheets
Legislation and Compliance
Product Details

PWM Controllers, STMicroelectronics

Pulse-width modulator (PWM) controllers can support isolated and non-isolated AC-DC and DC-DC switch mode power supplies. They are based on the most popular topologies in both single-ended, such as fly-back, forward or quasi-resonant controllers, and double-ended configurations, such as asymmetrical half-bridge, for Switch Mode Power Supplies (SMPS).
The PMW controllers also integrate a comprehensive set of protections for enhanced robustness and reliability.

PWM (Pulse Width Modulation) Controllers, STMicroelectronics

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 Through Hole
Package Type PDIP
Pin Count 8
Output Current 1 A
Minimum Operating Temperature -40 °C
Length 10.92mm
Dimensions 10.92 x 6.6 x 3.32mm
Height 3.32mm
Maximum Operating Temperature +150 °C
Width 6.6mm
80 Available for same day despatch or collection. (Delivery Terms & Conditions Apply)
170 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 10)
R 10.965
(exc. VAT)
R 12.61
(inc. VAT)
Per unit
Per Pack*
10 - 10
R 10.965
R 109.65
20 - 40
R 10.746
R 107.46
50 - 90
R 10.424
R 104.24
100 - 190
R 10.007
R 100.07
200 +
R 9.607
R 96.07
*price indicative
Packaging Options: