Texas Instruments UC3525AQ, Dual PWM Voltage Mode Controller, 400 mA, 400 kHz 20-Pin, PLCC

Technical data sheets
Legislation and Compliance
RoHS Certificate of Compliance
Product Details

Flyback Controller, Voltage Control, 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

Specifications
Attribute Value
Number of PWM Outputs 2
Control Method Voltage
Topology Boost, Buck, Flyback, Forward, Full Bridge, Half Bridge, Push-Pull
Rise Time 100ns
Fall Time 50ns
Maximum Switching Frequency 400 kHz
Mounting Type Surface Mount
Package Type PLCC
Pin Count 20
Maximum Duty Cycle 49%
Output Current 400 mA
On/Off Pin Yes
Synchronous Pin Yes
Dimensions 8.96 x 8.96 x 4.06mm
Length 8.96mm
Maximum Operating Temperature +70 °C
Height 4.06mm
Minimum Operating Temperature 0 °C
Typical Operating Supply Voltage 4.5 → 35 V
Width 8.96mm
345 In stock for delivery within 2 working days
Unit of sale: Each (In a Pack of 5)
0.968
(exc. VAT)
1.191
(inc. VAT)
units
Per unit
Per Pack*
5 +
€0.968
€4.84
*price indicative
Packaging Options:
Related Products
Current mode and voltage mode DC-DC controllers for ...
Description:
Current mode and voltage mode DC-DC controllers for power conversion circuits
A range of integrated Step-down (Buck) DC-DC controllers ...
Description:
A range of integrated Step-down (Buck) DC-DC controllers for applications where external power MOSFETs are used to implement complete switching regulator designs
From Texas Instruments, a range of Pulse Width ...
Description:
From Texas Instruments, a range of Pulse Width Modulation controllers and associated devices to suit a variety of applications and specifications
Pulse-width modulator (PWM) controllers can support isolated and ...
Description:
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 ...