IS32LT3953 - ISSI

IS32LT3953 CONSTANT-CURRENT 3-AMPERE PWM DIMMABLE BUCK REGULATOR LED DRIVER

The IS32LT3953 is a DC-to-DC switching converter with an integrated N-channel MOSFET operating in a buck configuration. The device is connected to a voltage higher than the LED voltage; between 6V and 48V and provides a constant current of up to 3.0A for driving a single LED or multiple series connected LEDs. The LED output current is set by an external curr.

Features

 Supply voltage 6V ~ 48V
 True average output current control
 3.0A maximum output over operating temperature range
 Cycle-by-cycle current limit
 Integrated MOSFET switch
 Dimming via direct logic input or power supply voltage
 Internal control loop compensation
 Under-voltage lockout (UVLO) and thermal shutdown protection
 Low power shutdown (1μA typical)
 Robust protection against: -Adjacent pin-to-pin short -Pin-to-GND short -Component open/short faults
 Automotive AEC-Q100 Qualified (Pending) APPLICATIONS
 Automotive and avionic lighting
 Daytime running lights
 Front and re.