SP7121
SP7121 is 2-Channel Adjustable Low Dropout High Side Linear LED Driver manufactured by Exar.
DESCRIPTION
The SP7121 LED driver provides a simple solution for a matched current source for any color mon cathode LEDs. The mon cathode connection allows the user to increase the LED power dissipation by having the cathodes heat sinked to the ground plane of the circuit board. The SP7121 output current value is set by an external resistor. At shutdown mode (EN pin is LOW), the supply current drops to .04μA typical.
The SP7121 is available in a small footprint Ro HS pliant, lead-free and green/halogen free 6-pin SOT23 packages.
APPLICATIONS
- Mobile Phones
- PDA, DSC, MP3 Players
- Handheld puters
- Keypads and Displays Backlight
FEATURES
- LED Driver for mon Cathode
Parallel Connected LEDs
- Ultra Low Dropout Voltage of 300m V @ 25m A
- No EMI, no Switching Noise
- Integrated Current Matching
- PWM Brightness Control
- Enable/Shutdown Control
-...
