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IS31LT3957A |
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| Part Number | IS31LT3957A |
| Manufacturer | Lumissil |
| Description | The IS31LT3957A is a current mode PWM controller designed to drive a low side external NMOS FET for wide input/output voltage range and high LED current applications. An external resistor senses the high side output current of the LED string. A high side sense is the most flexible current sensing scheme, since it functions in either boost or buck-boost mode . |
| Features |
Wide high voltage input range: 5V to 75V Supports boost, buck-boost, SEPIC and buck topology ±2% output current accuracy Adjustable operating frequency range of 100kHz~1MHz Programmable soft start to avoid inrush current Fixed under voltage lockout threshold EMI reduction capabilities - Programmable spread spectrum function - Operating frequency synchronization with external clock source Supports either analog or PWM dimming Fault protection with reporting: - VCC under voltage lockout (not reported) - Programmable output over voltage protection - Output short circuit protecti. |
| Datasheet |
 IS31LT3957A Data Sheet
PDF 604.77KB |
| Distributor | Stock | Price | Buy |
|---|
| No. | Parte # | Fabricante | Descripción | Hoja de Datos |
|---|---|---|---|---|
| 1 | IS31LT3952 |
Lumissil |
CONSTANT-CURRENT 1.5-AMPERE PWM DIMMABLE BUCK REGULATOR LED DRIVER |
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| 2 | IS31LT3953 |
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CONSTANT-CURRENT 3-AMPERE PWM DIMMABLE BUCK REGULATOR LED DRIVER |
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| 3 | IS31LT3954A |
Lumissil |
CONSTANT-CURRENT 3-AMPERE PWM DIMMABLE BUCK REGULATOR LED DRIVER |
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| 4 | IS31LT3910 |
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| 5 | IS31LT3916 |
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| 6 | IS31LT3918 |
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| 7 | IS31LT3929 |
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| 8 | IS31LT3932 |
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| 9 | IS31LT3935 |
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| 10 | IS31LT3938 |
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Desde 2024. D4U Semiconductor.
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