10 Channel Automotive LED Display Driver
- 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
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
multi-color 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).
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Automotive lighting
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White and other color high brightness LEDs
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Up to 50mA output per channel
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Multi-color high-brightness LED cluster displays
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General LED lighting
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