TPS9260x-Q1 Single- and Dual-Channel Automotive Headlight LED Driver

1 Features

Qualified for Automotive Applications
AEC-Q100 Qualified With the Following Results:
- Device Temperature Grade 1: –40°C to 125°C Ambient Operating Temperature
- Device HBM ESD Classification Level 2
- Device CDM ESD Classification Level C4B
Input Voltage: 4 V–40 V (45 V Abs. Max.)
Output Voltage: 4 V–75 V (80 V Abs. Max.)
Fixed-Frequency Current-Mode Controller With Integrated Slope Compensation
Two Regulation Loops, Constant-Current Output and Constant-Voltage Output of Each Channel
High-Side Current Sense:
- 150-mV or 300-mV Sense Voltage (EEPROM Option)
- ±6-mV Offset (Achieving Approx. 4% or 2% LED Current Accuracy)
Output Voltage Sense, Internal Voltage Reference: 2.2 V ±5%
Integrated Low-Side NMOS-FET Driver: Peak Gate-Drive Current Typ. 0.7 A
Frequency Synchronization
Both PWM Dimming and Analog Dimming
Diagnostic:
- High-Side Current (LED Current) Available as Analog Output
- Open-LED and Short-to-GND Detection
- Shorted Output Protection
Internal Under- and Overvoltage Lockout