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SG3525 KA3525 PWM Controller IC 16-DIP

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SG3525 KA3525 PWM Controller IC 16-DIP
PKR 50.00

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Product code : 1981
SG3525 KA3525 PWM Controller IC 16-DIP
SMPS Controller
1. Dual source/sink Output Drivers
2. Latching PWM to Prevent multiple pulses
3. Pulse-by-pulse Shutdown
4. Internal soft-start
5. 8.0 V to 35 V Operation
6. 5.1 V +- 1.0% Trimmed Reference
7. 100 Hz to 400 kHz Oscillator Range
8. Separate Oscillator Sync Pin
9. Adjustable Deadtime Contro
10. INput Undervoltage Lockout with Hysteresis
Description

Details

Product Description:

SG3525 KA3525 PWM Controller IC 16-DIP
Description:
The SG3525A 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 +5.1V 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 dead time
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 VCC 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
SG3525A features NOR logic resulting in a low output for an off−state.
Specification:
SMPS Controller
1. Dual source/sink Output Drivers
2. Latching PWM to Prevent multiple pulses
3. Pulse-by-pulse Shutdown
4. Internal soft-start
5. 8.0 V to 35 V Operation
6. 5.1 V +- 1.0% Trimmed Reference
7. 100 Hz to 400 kHz Oscillator Range
8. Separate Oscillator Sync Pin
9. Adjustable Deadtime Contro
10. INput Undervoltage Lockout with Hysteresis
Package Includes :
1x IC SG3525 KA3525 PWM Controller IC 16-DIP

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