SD42525KTR

SD42525_Datasheet 32V/1A, HIGH-EFFICIENCY HYSTERESIS LED DRIVER WITH BUILT-IN MOSFET DESCRIPTION SD42525 is a step-down constant current converter with inductance current continuous-conduction mode, it is used for driving LED or LEDs in series. The output current is adjustable which is up to 1A in 6~32V input voltage range. LED whose power is tens of watts can be driven by SD42525 with different input voltages and peripheral elements. With built-in power switch, average current of LED can be set through external high-side current sensing. Analog dimming and wide range PWM dimming are available through pin DIM and soft-start time can be set by capacitor value which is connected between pin DIM and ground. It adopts two patent technologies: output current compensation when input voltage varies and current limiting through maximum duty factor when difference between input/output APPLICATIONS voltages is small. For SD42525, package of SOP-8-225, SOT-23-6L and SOT89-5L (no dimming) are available. * Low-voltage LED spotlight, replacing Halogen lamp * Car-mounted LED lamp FEATURES * LED backup lamp * LED signal lamp * Few peripheral elements * Built-in 36V power MOSFET * Wide input voltage range: 6V~32V * Maximum 1A output current * Excellent output current accuracy: ±3% * Multiplex pin DIM is used for chip switch, analog dimming and PWM dimming. * Soft start function * LED open/short-circuit protection * High efficiency up to 96% * Output constant current which ...