SP7615

Cost Effective LED driver
Constant current output ideal for Driving LED strings
Four Channel LED Driver provides matched LED current
Current adjusted via an external resistor
PWM dimming possible
Small 2mm x 3mm DFN package
Outputs can be connected in parallel to increase drive
Constant current for wide cathode voltage range (1.0V to 16V)
Highly integrated design, minimal components
Thermal shutdown protects the driver

The SP7615 is a linear constant current driver designed to drive multiple LEDs in series from a high input voltage rail. The driver acts as a high current matched, four-channel current source ensuring constant LED current for a range of input voltages. The SP7615 allows implementing the lowest cost LED driver for a variety of applications. Internal circuitry maintains the pre-set constant current output for a wide voltage range at the LED outputs (LED1,2,3,4). LED current can be adjusted up to 125mA per string with an external resistor. The dimming can be achieved by controlling the I_SET input or by feeding a PWM signal to the EN pin. Fast EN turn-on and turn-off time allows for very fast PWM dimming frequencies, completely eliminating flicker. The built-in thermal protection automatically adjusts LED current to prevent overheating.