STMicroelectronics UC3845BN, PWM Current Mode Controller, 1 A, 500 kHz 8-Pin PDIP

Technical data sheets
Legislation and Compliance
RoHS Certificate of 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

Specifications
Attribute Value
Number of PWM Outputs 1
Control Method Current
Topology Boost, Flyback
Rise Time 50ns
Fall Time 50ns
Maximum Duty Cycle 50%
Maximum Switching Frequency 500 kHz
Mounting Type Through Hole
Package Type PDIP
Pin Count 8
Output Current 1 A
Length 10.92mm
Width 6.6mm
Maximum Operating Temperature +150 °C
Height 3.32mm
Dimensions 10.92 x 6.6 x 3.32mm
Minimum Operating Temperature -40 °C
200 In Global stock for delivery within 4 - 6 working days
Price Each (In a Pack of 10)
MYR 2.93
units
Per unit
Per Pack*
10 - 10
MYR2.93
MYR29.30
20 - 40
MYR2.79
MYR27.90
50 - 90
MYR2.314
MYR23.14
100 - 190
MYR2.294
MYR22.94
200 +
MYR2.285
MYR22.85
*price indicative
Packaging Options:
Related Products
VIPer® high-voltage converters from the mains voltage (230VAC) ...
Description:
VIPer® high-voltage converters from the mains voltage (230VAC) are fixed frequency offline converter ICs, integrating a PWM controller and a 700V vertical power MOSFET.Typical applications cover offline power supplies. They are compatible from either the primary side or the secondary ...
The isolated-flyback power supply controller provides Constant-Voltage (CV) ...
Description:
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. Current-Mode and Voltage-Mode PWM ControllerPrimary-Side RegulationPeak ...
The Flyback controllers, Line Level Control (LLC) controllers, ...
Description:
The Flyback controllers, Line Level Control (LLC) controllers, and Primary-Side Regulation controllers offer Crucial energy savings to address the needs of Switch Mode Power Supply (SMPS) designs.All controllers come with integrated soft-start, and protection features from over-voltage, open-feedback, overload, ...
Power supply secondary side, synchronous rectification controllers. Fixed ...
Description:
Power supply secondary side, synchronous rectification controllers. Fixed frequency flyback and forward PWM controllers.