Texas Instruments TPS99000x-Q1 System & Illumination Controller

Texas Instruments TPS99000x-Q1 System Management and Illumination Controller is part of the DLP553x-Q1 chipset, including the DLPC230x-Q1 DMD display controller. The chipset provides all functions needed to support and exceed typical 5000:1 display dimming requirements for Head-Up Display (HUD) applications, with typical requirements of 3 to 15,000 nits brightness range and tight color point control. An integrated DMD high-voltage regulator supplies DMD mirror reference voltages, meeting the required tight tolerances. The power supply sequencer and monitor provide robust coordination of power-up and power-down events for the entire chipset.

The Texas Instruments TPS99000x-Q1 illumination controller integrates a 12-bit ADC, two DACs (12-bit and 10-bit), and two high-performance photodiode signal conditioning transimpedance amplifiers (TIAs) as the core components of the illumination control system. The ADC can automatically sample up to 63 events per video frame. Advanced system status monitoring circuits provide real-time visibility into display sub-system operational conditions. These include two processor watchdog circuits, two die temperature monitors, comprehensive supply monitoring for overvoltage and undervoltage detection, checksum and password register protection with byte-level parity on SPI bus transactions, excessive brightness monitor circuit, and other built-in test functions.

Features

Qualified for automotive applications
AEC-Q100 qualified with the following results
- –40°C to 105°C ambient operating temperature (temperature grade 2)
- Device HBM ESD classification level 2
- Device CDM ESD classification level C4B
Functional safety quality-managed
- Documentation available to aid the ISO 26262 functional safety system design up to ASIL-B
Automotive system management device for TI DLP® products
- Advanced power monitoring, sequencing, and protection circuits
- Two die temperature monitors, MCU external watchdog timer, and clock frequency monitor
- System over-brightness detection
- SPI port with parity, checksum, and password register protection
- Second SPI port for independent system monitoring

On-chip DMD mirror voltage regulators
- Generates +16V, +8.5V, and –10V DMD control voltages
High dynamic range dimming and color control, enabling > 5000:1 dimming range with high bit depth and white color balance
- Two transimpedance amplifiers (TIA) with a wide dynamic range supporting numerous optical designs
- 12-bit ADC with up to 63-time sequence samples per frame
- DAC and comparator functions for color and pulse control
- FET drivers for LED and shunt control