Datasheet Details
| Part number | IS32LT3954A |
|---|---|
| Manufacturer | Lumissil |
| File Size | 811.41 KB |
| Description | CONSTANT-CURRENT 3-AMPERE PWM DIMMABLE BUCK REGULATOR LED DRIVER |
| Datasheet |
 IS32LT3954A Datasheet
|
|
|
General Description
The IS32LT3954A is a DC-to-DC switching converter that integrates an N-channel MOSFET to operate in a buck configuration.
The device can operate from a wide input voltage between 4.5V and 38V and provides a constant current of up to 3A for driving a single LED or multiple series connected LEDs.
Key Features
- Wide input voltage supply from 4.5V to 38V - Withstand 40V load dump.
- True average output current control.
- 3A maximum output over operating temperature range.
- Cycle-by-cycle current limit.
- Integrated high-side MOSFET switch.
- Dimming via direct logic input or power supply voltage.
- Internal control loop compensation.
- Under-voltage lockout (UVLO) and thermal shutdown protection.
- 2μA low power shutdown.
- Spread spectrum to optimize EMI.
- Robust f.