TLD5542-1
Overview
Features
- Single inductor high power Buck-Boost controller
- Wide LED forward voltage range (2 V up to 55 V)
- Wide VIN range (IC 4.5 V to 40 V, power 4.5 V to 55 V)
- Switching frequency range from 200 k Hz to 700 k Hz
- SPI for diagnostics and control
- Maximum efficiency in every condition (up to 96%)
- Constant current (LED) and constant voltage regulation
- Drives multiple loads with a single IC thanks to the Fast Output Discharge operation
- Limp Home function (fail safe mode)
- EMC optimized device: features an Auto Spread Spectrum
- LED and input current sense with dedicated monitor outputs
- Advanced protection features for device and load
- Enhanced dimming features
: Analog and PWM dimming
- LED current accuracy +/- 3%
- Available in a small thermally enhanced PG-VQFN-48 or PG-TQFP-48 package
- Automotive AEC Qualified
VDD VDD
I/O
Micro controller
I/O I/O I/O
SPSIPI GND
RSPI1 RSPI2 RSPI3 RSPI4
RPU1 RPU2
VIN CIN1
VIN IIN2
IIN1
IVCC_ext
IVCC VFB_VIN
BST1...
