SG3524 is a monolithic integrated circuit that contains all the control circuitry for a regulating power supply inverter or switching regulator. Included in a 16-pin dual-in-line package are the voltage reference, error amplifier, oscillator, pulse-width modulator, pulse steering flip-flop, dual alternating output switches, and current-limiting and shut-down circuitry.
This device can be used for switching regulators of either polarity, transformer-coupled DC-to-DC converters, transformerless voltage doubler, and polarity converters as well as other power control applications. The SG3524 is designed for commercial applications of 0°C to +70°C.
SG3524 Pinout
SG3524 Pin Configuration
| Pin No | Pin Name | Description |
|---|---|---|
| 1 | INV-IN | Inverting-Input Pin |
| 2 | N-INV IN | Non-Inverting Input Pin |
| 3 | OSC OUT | Oscillator Output Pin |
| 4 | (+)CL SENSE | +ve Collector Sense Pin |
| 5 | (-)CL SENSE | -ve Collector Sense Pin |
| 6 | RT | Resistor Timing Pin |
| 7 | CT | Capacitor Timing Pin |
| 8 | GND | Ground Pin |
| 9 | COMP: | Compensation Pin |
| 10 | SHUTDOWN | Shutdown Pin |
| 11 | EMITTER A | Emitter Pin A |
| 12 | COLLECTOR A | Collector Pin A |
| 13 | COLLECTOR B | Collector Pin B |
| 14 | EMITTER B | Emitter Pin B |
| 15 | +Vin | Positive Input Voltage |
| 16 | Vref | Voltage Reference Pin |
SG3524 Features
- Complete PWM power control circuitry
- Single ended or push-pull outputs
- Line and load regulation of 0.2%
- Maximum temperature variation 1%
- Total supply current is less than 10mA
- Operation beyond 100kHz
Application
- Switching Regulators
- Transformer-coupled DC-to-DC converters
- Transformer less
- Voltage Doubler
- Polarity converters
- Power control applications
You can download this datasheet for SG3524 Regulating Pulse Width Modulator – Datasheet from the link given below:
