Texas Instruments
LP8868YQDGNRQ1
Automotive 65-V 4-A buck-boost LED driver with flexible dimming and spread spectrum
The LP8868Y-Q1 is a non-synchronous multi-topology LED driver with a 4.5-V to 65-V wide input range. It integrates a low-side 5.2-A, 150-mΩ NMOS switch, supporting buck, buck-boost, and boost topologies. The device features a configurable switching frequency from 100 kHz to 2.2 MHz with optional spread spectrum for EMI reduction. It supports four dimming options: analog (256:1), PWM (150-ns pulse width), hybrid, and flexible dimming, configured via PWM and ADIM pins. Protection features include LED open/short protection, cycle-by-cycle current limit, and thermal foldback.
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Technical Specifications
Texas Instruments LP8868YQDGNRQ1 technical specifications.
General
| Input Voltage (Min) | 4.5V |
| Input Voltage (Max) | 65V |
| Output Current (Buck Mode) | 4A |
| Integrated MOSFET Current Limit | 5.2A |
| MOSFET RDS(on) | 150mΩ |
| Switching Frequency (Min) | 100kHz |
| Switching Frequency (Max) | 2.2MHz |
| Operating Temperature Range (Ta) | -40 to 125°C |
| Analog Dimming Ratio | 256:1ratio |
| Minimum PWM Pulse Width | 150ns |
| Number of Pins | 12pins |
Compliance
| Automotive Qualification | AEC-Q100 Qualified |
| RoHS | Yes |
| REACH | Yes |
| Msl Rating | Level-1-260C-UNLIM |
Datasheet
Texas Instruments LP8868YQDGNRQ1 Datasheet
Download the complete datasheet for Texas Instruments LP8868YQDGNRQ1 to view detailed technical specifications.
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