Analog Devices LT8355-1
The LT8355-1 senses output current at the high or low side of the load. The product of CTRL2 and IADJ2 inputs provides analog programming of the output current for channel 2. The PWM input and PWMTG high side PMOS driver provides precision time-based LED dimming capability.| Part No. | LT8355-1 |
|---|---|
| Datasheet | LT8355-1 Download |
| Manufacturer |  Analog Devices |
| Description | Dual LED Controller |
| Buy | Stock & Price |
FEATURES
n Two independent High Voltage LED Driver Controllers Channels n 128:1 Internal Exponential PWM Dimming n Two-Pin Multiplying Analog Dimming (CH2) n Spread Spectrum Frequency Modulation n 20,000:1 External PWM Dimming at 100Hz n Rail-to-Rail LED Current Sensing: 0V to 120V n ±2% LED Current Regulation n ±2% Output Voltage Regulation n LED Short/Open Protection and Indication n Wide Input Voltage Range (5V to 60V) n PMOS Switch Driver for PWM and Output Disconnect n Independent Channel Dimming n Constant-Voltage and Constant-Current Regulation n Adjustable Switching Frequency 100kHz to 2MHz n Independent OPEN/SHORT LED FAULT per channel n Programmable VIN UVLO with Hysteresis n Side Solderable 28-Lead 4mm × 5mm QFN Package n AEC-Q100 Qualified for AutomotiveAPPLICATIONS
APPLICATIONS
n High Voltage LEDAPPLICATIONS
n Automotive Head Lamps/Running Lamps n Accurate Current Limited Voltage RegulatorDESCRIPTION
The LT®8355-1 a dual-channel DC/DC controller designed to drive two strings of high current LEDs.
