ROHM Semiconductor BD18347AEFV-M Constant Current LED Driver

ROHM Semiconductor BD18347AEFV-M Constant Current LED Driver is a four-channel, 40V-withstanding constant current LED driver with built-in energy-sharing control. LED Open Detection, the OUTx (all later x=1 to 4) pin Short Circuit Protection, Overvoltage Mute, and a Thermal Shutdown function enable high reliability in internal and external automotive LED applications. The 5.0mm x 6.4mm x 1.0mm HHSSOP-B16 packaged device features a 5.5V to 20.0V input range and a 150mA maximum output current per channel in a -40°C to +125°C operating temperature range.

Features

AEC-Q100 Grade 1 qualified
Functional safety supportive automotive product
Energy sharing control
PWM dimming function
License lamp mode
LED open detection

OUTx pin short circuit protection
Overvoltage mute function
Disable LED open detection function at a reduced-voltage
LED failure I/O functions
Boost topology
5.0mm x 6.4mm x 1.0mm, HTSSOP-B16 package

Applications

Exterior automotive LED lamps
- Rear lamp
- License lamp
- DRL/position lamp
- Fog lamp

Interior automotive LED lamps
- Air conditioner lamp
- Interior lamp
- Cluster lights

Specifications

5.5V to 20.0V input range
40V output
150mA/ch maximum output current
±5% output current accuracy
±5% relative channel accuracy

750Hz maximum CR timer frequency
100µs minimum PWM pulse width
7mA maximum supply current
-40°C to +125°C operating temperature range

ROHM Semiconductor BD18347AEFV-M Constant Current LED Driver

Features

Applications

Specifications

Typical Application Circuit

Block Diagram

husseinkey ELECTRONICS®

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