FEATURES
Automotive “load dump” protection (40V)
10 independent LED channels
Up to 50mA output per channel
Overvoltage detection at 19V
Serial interface for channel programming
Daisy chain output for multi-driver cascading
LED blanking control
Operating temperature from -40ºC to +125ºC
20-pin SOIC package
APPLICATIONS
Automotive lighting
White and other color high brightness LEDs
Multi-color high-brightness LED cluster displays
General LED lighting
PRODUCT DESCRIPTION
The CAT310 is a 10-channel LED driver for automotive and other lighting applications. All LED output channels are driven from a low on-resistance open-drain High Voltage CMOS Nch-FETs and are fully compliant with “Load Dump” transients of up to 40 volts. The LED bias current of each channel can be set independently using an external series ballast resistor, making the device ideal for multicolor instrumentation displays.
A high-speed serial interface (suitable with both 3.3 volt and 5 volt systems) feeding a 10 bit shift register is used to program the desired state (on/off) of each channel. The device offers a blanking control pin (BLANK) which can be used to disable all channels on demand. A serial output data pin (SOUT) is provided to daisy-chain devices in large
cluster LED applications During initial power up all channels are reset and cleared via an under-voltage lock out (UVLO) detector and for added protection all channels are disabled in the event of a battery over-voltage condition (19 volts or more).
Click to view :
CAT310.pdf
