STMicroelectronics ALED1262ZT Monolithic 12 Output LED Driver
STMicroelectronics ALED1262ZT Monolithic 12 Output LED Driver is designed for automotive exterior and interior lighting applications. The STMicroelectronics ALED1262ZT has a 19V output driving capability connecting several series LEDs. In the output stage, twelve regulated current sources provide a constant current from 6mA to 60mA to drive LEDs. A single external resistor programs the current. In the ALED1262ZT, LED open error detection is available.
Features
- Designed for automotive applications
- 12 constant current output channels
- 19V current generator-rated voltage
- Output current from 6mA to 60mA
- Current programmable by a single external resistor
- 7-bit PWM local brightness control
- Slow turn-on/off time, gradual output delay, and dithered clock for EMI reduction
- Error detection for open LEDs
- Supply voltage from 5.5V to 38V
- Thermal shutdown and over-temperature alert
- Standalone and bus-driven mode
- Custom configuration by OTP with Redundancy and ECC
- 400kHz fast I2C interface with selectable extended Hamming encoding
- Wired-OR error flag connection
Applications
- Automotive rear lights
- Automotive interior lighting
Block Diagram
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A broad range of drop-in replacements for general-purpose analog ICs, discretes, and serial EEPROMs.
Pubblicato: 2019-04-22
| Aggiornato: 2024-02-19