XBLW SG3525 Pulse Width Modulator Control Circuit

PublishTime：2023-11-02

●The SG3525 pulse width modulator control circuit offers improved performance and lower external parts count when Implemented for controlling all types of switching power supplies. The on−chip +5.1 V reference is trimmed to ±1% and the error amplifier has an input common−mode voltage range that includes the reference voltage, thus eliminating the need for external divider resistors.A sync input to the oscillator enables multiple units to be slaved or a single unit to be synchronized to an external system clock. A wide range of deadtime can be programmed by a single resistor connected between the CT and Discharge pins. This device also features built−in soft−start circuitry, requiring only an external timing capacitor. A shutdown pin controls both the soft−start circuitry and the output stages, providing instantaneous turn off through the PWM latch with pulsed shutdown, as well as soft−start recycle with longer shutdown commands. The under voltage lockout inhibits the outputs and the changing of the soft−start capacitor when V CC is below nominal. The output stages are totem−pole design capable of sinking and sourcing in excess of 200 mA. The output stage of the SG3525 features NOR logic resulting in a low output for an off−state.
●Features
■ 8.0 V to 35 V Operation
■ 5.1 V ± 1.0% Trimmed Reference
■ 100 Hz to 400 kHz Oscillator Range
■ Separate Oscillator Sync Pin
■ Adjustable Deadtime Control
■ Input Undervoltage Lockout
■ Latching PWM to Prevent Multiple Pulses
■ Pulse−by−Pulse Shutdown
■ Dual Source/Sink Outputs: ±400 mA Peak

Brand of Product：	XBLW
Part#：	XBLW SG3525 、 SG3525 、 SG3525AN 、 SG3525ADTR More Part#
Product Category：	Pulse Width Modulator Control Circuit More
Application：	More
Data Type：	Datasheet More
Safety & Environment Standards：	More
Operating Temperature：	Please see the document for details
Qualification Grade：	More
Qualification Approval：	More
Package：	DIP-16;SOP-16;DIP16;SOP16
Language：	English Chinese Chinese and English Japanese
Date of Creation：	2023/6/5
Version Number：	version 1.0
Data Encoding：
Data Size：	905 KB

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