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Regulating Pulse-Width Modulators
275
ic
The SGx524 is a fixed-frequency pulse-width modulation (PWM) voltage regulator control circuit designed for use in power supplies, inverters, or switching regulators.
In stock
Specifications
8- Operating Voltage
- 8 V to 40 V
- Supply Current
- 8 mA (TYP) (TYP)
- Interface
- PWM, GPIO, ADC
- Resolution
- Not specified
- Range
- 4.6 V to 5.4 V (Reference output voltage) (V)
- Accuracy
- Not specified
- Temperature Range
- -25°C to 85°C (SG2524), 0°C to 70°C (SG3524) (°C)
- Package
- SOIC (16), PDIP (16), NS (16)
Pinout
16| Pin | Name | Functions | Notes |
|---|---|---|---|
| 1 | IN- | GPIO | Negative input of the error amplifier |
| 2 | IN+ | GPIO | Positive input of the error amplifier |
| 3 | OSC OUT | PWM | Oscillator output used for blanking and pulse steering |
| 4 | CURR LIM+ | GPIO | Positive input of the current limiting amplifier |
| 5 | CURR LIM- | GPIO | Negative input of the current limiting amplifier |
| 6 | RT | GPIO | Resistor terminal used to set oscillator frequency |
| 7 | CT | GPIO | Capacitor terminal used to set oscillator frequency |
| 8 | GND | GND | Ground reference |
| 9 | COMP | GPIOADC | Error amplifier compensation and gain control node |
| 10 | SHUTDOWN | GPIO | Shutdown input to disable the device |
| 11 | EMIT 1 | PWM | Emitter terminal of BJT output 1 |
| 12 | COL 1 | GPIO | Collector terminal of BJT output 1 |
| 13 | COL 2 | GPIO | Collector terminal of BJT output 2 |
| 14 | EMIT 2 | PWM | Emitter terminal of BJT output 2 |
| 15 | VCC | POWER | Positive supply voltage |
| 16 | REF OUT | GPIOADC | Reference regulator output for error amplifier |
Interactive pinout
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275
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