SP7619/19A

Supply Voltage (Vcc) ............6.0V
Input Voltage at any input ...-0.6V to Vcc +0.5V
8-pin DFN Package thermal resistance 59°C/W
Junction Temperature ......... -40°C to +170°C*
Storage Temperature .....-65°C to +150°C
Soldering Temperature .........+240°C**
*) Internally limited
**) Duration 10s maximum
These are stress ratings only and functional operation of the device at these ratings or any other above those  ndicated in the operation sections of the specifications below is not implied. Exposure to absolute maximum rating  onditions for extended periods of time may affect reliability.

The SP7619 is a linear low-side, constant-current driver designed to drive high power LEDs from an input voltage rail.  he driver acts as a current source, ensuring constant LED current across a range of input voltages. The SP7619  llows implementing the lowest cost LED driver for a variety of applications. Internal circuitry maintains the preset  onstant current output for a wide voltage range at the LED input. The LED current can be set at 200mA at torch  ode or 500mA (700mA SP7619A) at flash mode by selecting CTRL pin low/high respectively. Dimming or shutdown can be done by feeding a PWM signal to the EN pin. Fast EN turn-on/off time allows for very fast dimming  requencies ,completely eliminating flicker. The built-in thermal protection automatically stops LED current to prevent overheating. A timeout function serves as a fail safe, shutting down the output at 500mA (700mA) current after 4 seconds of  ontinuous operation if the enable input is not cycled. The Enable pin should be cycled HIGH/LOW/HIGH to restart the driver.