Texas Instruments TLC69639-Q1 LED Drivers
Texas Instruments TLC69639-Q1 LED Drivers are 100mA, 48-channel drivers with an integrated oscillator and advanced diagnostics. These LED drivers can provide up to 16-bit individual pixel-level LED PWM control. The TLC69639-Q1 LED drivers are high-performance, automotive-grade, with 48 constant current sink channels. The additional 7-bit Dot Correction (DC) is also implemented for each channel to control peak current. Each device shares a data stream by Cascaded Serial Interface (CSI), which supports up to 511 device connections. The TLC69639-Q1 devices are AEC-Q100 qualified for automotive applications. These LED drivers are equipped with diagnostics for LEDs, current sinks, communication, and devices. The TLC69639-Q1 LED drivers are ideal for automotive central information displays, automotive cluster displays, and automotive head-up displays.
Features
- AEC-Q100 qualified for automotive applications:
- Grade 1 –40°C to 125°C ambient operating temperature range
- Device HBM classification level H1C
- Device CDM classification level C4B
- Functional safety-compliant:
- Developed for functional safety applications
- Documentation available to aid ISO 26262 system design up to ASIL B targeted
- 48 integrated current sinks:
- Programmable 16-bit PWM / hybrid dimming
- Programmable 7-bit analog Dot Correction (DC)
- Maximum output current, voltage: 100mA, 16V
- Integrated 33MHz oscillator:
- 16-bit PWM output at 500Hz
- > 20KHz refresh rate with Enhanced Spectrum (ES) PWM
- High-speed communication:
- Cascaded Serial Interface (CSI)
- Data rates up to 17Mbps
- Power efficiency optimization:
- Adaptive Headroom Voltage Control (AHVC)
- Device Power Save Mode (PSM)
- EMI mitigation:
- Programmable buffer driving capability interface
- Phase shifting / spread spectrum current sinks
- Protection and diagnostic:
- LED open short detection/health check
- Current sinks are adjacent-pin short / health check
- CRC / command error / time-out error / communication watchdog interfaces
- Under voltage / ISET out of range / thermal shutdown / memory CRC / OTP CRC / OSC watchdog devices
Applications
- Automotive central information display
- Automotive cluster display
- Automotive head-up display
Schematic
