TLD5501-2QV
Overview
Features
- Dual-Channel synchronous DC/DC Controller for HIGH POWER LED drivers
- Wide LED forward voltage Range (2 V up to 50 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
- Limp Home Function (Fail Safe Mode)
- EMC optimized device: Features an auto Spread Spectrum
- LED current sense with dedicated monitor Output
- 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 package
- Automotive AEC Q100 Grade 1 (-40°C to 125°C) qualified
Figure 1
Vbat
CIN1
CIVCC
RP1 VIN
IVCC
IVCC_ext
Digital dimminig CH1
PWM I1
BST1
CP1 Analog Dimming CH1 Output Current Monitoring CH1
Device Enable Fail Safe Activation Digital Supply (+5V)
µC SYNC...
