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Texas Instruments TPS990STPZPQ1
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- Part No.:
- TPS990STPZPQ1
- Manufacturer:
- Texas Instruments
- Category:
- Power Management - Specialized
- Package:
- 100-TQFP Exposed Pad
- Datasheet:
-
TPS990STPZPQ1.pdf
- Description:
- DLP SYSTEM MANAGEMENT AND I
- Quantity:
- Payment:
- Shipping:
Inventory:1,238
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Product details
Overview
TPS99000S-Q1 from Texas Instruments is an automotive-grade system management and illumination controller for DLP® HUD and digital cluster displays. It integrates dual transimpedance amplifiers (TIA1/TIA2), a 12-bit ADC with up to 63 frame-synchronized samples, two DACs (12-bit and 10-bit), FET drivers for LED/shunt control, and on-chip DMD voltage regulators (+16V, +8.5V, –10V). It enables >5000:1 dimming range with tight white balance in high-brightness HUD systems.
For engineers reviewing the TPS99000S-Q1 datasheet, TPS99000S-Q1 pinout, TPS99000S-Q1 application, or TPS99000S-Q1 equivalent, this page delivers verified technical context, real-world illumination control specifications, validated pin functions for HTQFP-100, functional safety support up to ASIL-B, and confirmed alternatives for automotive display power and optical feedback subsystems.
Technical Context
The TPS99000S-Q1 operates as the illumination and system health co-processor within the DLP553xS-Q1/DLP462xS-Q1 chipset, tightly coupled with DLPC23xS-Q1 via primary and diagnostic SPI interfaces. Its dual TIAs condition photodiode signals across wide dynamic ranges (0–7 mA combined input), while the 12-bit ADC digitizes up to 7 external analog channels with 10–12 ENOB and sub-µs sampling timing.
It implements dual independent power monitoring paths: one for external buck supplies (1.1V/1.8V/3.3V) with brownout detection, and another for DMD-specific rails (VOFFSET/VBIAS/VRESET) with dedicated power-good logic and fast discharge control. System-level protection includes two watchdog timers, die temperature monitors (135°C warning / 150°C emergency), over-brightness detection, and SPI transaction security (parity, checksum, password registers).
Key Specifications
| Parameter | Value and Actual Design Meaning |
|---|---|
| Operating Temp | –40°C to +105°C ambient (AEC-Q100 Grade 2) |
| ADC Resolution | 12-bit with up to 63 time-sequenced samples per video frame |
| TIA Input Range | 0–4.8 mA (TIA2), 0–7 mA combined (TIA1+TIA2) |
| DAC Channels | 12-bit photo feedback DAC, 10-bit current control DAC, 8-bit over-brightness DAC |
| DMD Regulator Outputs | +16V (VBIAS), +8.5V (VOFFSET), –10V (VRESET), each with power-good signaling |
| SPI Interfaces | Two isolated SPI ports: primary control (SPI1) and read-only diagnostic (SPI2) |
| FET Drivers | Three RGB low-side NFET enables (R_EN/G_EN/B_EN), dual shunt enables (S_EN1/S_EN2) |
Pinout & Package
TPS99000S-Q1 is housed in a 100-pin HTQFP package (14.00 mm × 14.00 mm), thermally enhanced with exposed thermal pad (PBKG pins 25, 60, 75, 99) and optimized for automotive PCB layouts requiring ESD robustness and mixed-signal isolation.
| Pin/Terminal | Circuit Role | Design Meaning |
|---|---|---|
| WD1, WD2 | Watchdog interrupt inputs | Independent timeout detection channels feeding MCU-level fault recovery |
| PARK_Z, RESET_Z, INT_Z | DMD interface outputs | Active-low mirror parking, DLPC23xS-Q1 reset, and interrupt signaling with open-drain drive |
| VIN_DRST, VSS_DRST, DRST_HS_IND, DRST_LS_IND | DMD reset regulator interface | 6V input, ground return, and inductor connections for generating –10V VRESET rail |
| TIA_PD1, TIA_PD2, COMPOUT | Photodiode signal path | Direct cathode drive for dual TIAs; high-speed comparator output for over-brightness detection |
| R_EN, G_EN, B_EN, S_EN1, S_EN2 | LED illumination control outputs | Low-side NFET gate drives for RGB channel selection and shunt-based brightness modulation |
| SPI1_DIN/SPI1_DOUT/SPI1_CLK/SPI1_SS_Z SPI2_DIN/SPI2_DOUT/SPI2_CLK/SPI2_SS_Z |
Dual SPI interfaces | Primary control port (read/write) and secondary diagnostic port (read-only) with independent clocking |
Key Features
| Feature | Design Value |
|---|---|
| ASIL-B Functional Safety Support | ISO 26262 documentation available; integrated watchdogs, dual die temp monitors, and supply fault detection enable safety-critical HUD system design |
| High-Dynamic-Range Illumination Control | Dual TIAs with 14 gain settings (0.6–345.6 kV/A), 12-bit ADC, and 3 DACs enable precise photodiode feedback for >5000:1 dimming with color point stability |
| DMD-Specific Power Management | Integrated +16V, +8.5V, and –10V regulators with power-good flags, fast discharge, and capacitor requirements specified per rail |
| Robust Optical Subsystem Monitoring | System over-brightness detection, real-time LED sync strobe (SYNC), and external current sense ADC inputs (LS_SENSE_P/N) provide closed-loop optical safety |
| Secure Dual-Port SPI Interface | SPI1 supports full register access with parity, checksum, and password protection; SPI2 provides read-only diagnostic visibility without affecting primary control path |
Applications
| Augmented Reality HUD | Digital Instrument Cluster |
|---|---|
|
Use Scenario: Wide field-of-view head-up display projecting navigation and ADAS data onto windshield at 3,000–15,000 nits brightness. IC Role / Device Role / Timing Role: Illumination controller synchronizing LED dimming, photodiode feedback, and DMD voltage sequencing to maintain contrast and color fidelity across ambient light conditions. Use Value: Enables >5000:1 dimming range with 12-bit ADC sampling and dual-TIA signal conditioning for consistent luminance and white point accuracy. |
Use Scenario: High-resolution digital dashboard with dynamic gauge rendering, requiring flicker-free brightness adaptation and thermal-safe operation. IC Role / Device Role / Timing Role: System health monitor managing power-up/down sequencing, die temperature supervision, and supply voltage integrity for display subsystem reliability. Use Value: Dual watchdog timers, AEC-Q100 Grade 2 qualification, and ASIL-B functional safety documentation reduce validation effort for automotive OEM compliance. |
| Windshield Navigation Display | Infotainment Projection System |
|
Use Scenario: Real-time map projection with variable content brightness, requiring rapid LED current adjustment and optical feedback loop closure. IC Role / Device Role / Timing Role: Closed-loop illumination controller using TIA outputs and 12-bit ADC to dynamically adjust RGB LED currents via R_EN/G_EN/B_EN FET drivers. Use Value: 63-frame-synchronized ADC samples per video frame and 10-bit current control DAC allow sub-millisecond brightness correction during motion sequences. |
Use Scenario: Compact infotainment projector integrating DLP chipset into center console, demanding compact power architecture and ESD-hardened interfaces. IC Role / Device Role / Timing Role: Integrated DMD voltage regulator supplying VBIAS/VOFFSET/VRESET rails with dedicated LDOs and defined capacitor requirements (1 µF, 0.47 µF, 1 µF). Use Value: Eliminates need for external high-voltage regulators and simplifies layout with pin-defined capacitor placement guidance per rail. |
Equivalent & Alternatives
The following parts are listed as comparable options for similar illumination control and system management applications.
| Alternative Part | Technical Difference | Application Difference | Selection Advice |
|---|---|---|---|
| TPS99000S-Q1EVM | Evaluation module with preconfigured firmware, reference layout, and test points for all TIA/ADC/DAC interfaces | Used for lab validation and optical calibration-not a production replacement | Select for prototyping HUD optical loops before committing to custom PCB design |
| DLPC230S-Q1 | DMD display controller with integrated video processing; lacks TIA, ADC, DAC, and DMD voltage regulation | Manages pixel data and timing but relies on TPS99000S-Q1 for illumination and power control | Select only as complementary component-requires TPS99000S-Q1 for full HUD functionality |
Compared with TPS99000S-Q1, the TPS99000S-Q1EVM provides hardware validation capability but no standalone function, while DLPC230S-Q1 handles video processing only and cannot replace TPS99000S-Q1's illumination control, photodiode conditioning, or DMD power regulation roles.
Availability
TPS99000S-Q1 is available at Aetrix Electronics and suitable for automotive HUD development, digital instrument cluster production, and infotainment projection systems requiring stable component supply, long-term lifecycle assurance, and AEC-Q100-compliant sourcing.
Supply support for TPS99000S-Q1 includes scheduled delivery planning, volume procurement assistance, BOM continuity management, traceable sourcing, and lifecycle availability coordination for OEM customers, industrial embedded developers, connected-device designers, and electronics production programs.
Manufacturer
Texas Instruments is a global semiconductor leader specializing in analog, embedded processing, and automotive ICs, with decades of DLP® technology leadership and functional safety expertise.
The TPS99000S-Q1 belongs to TI's DLP® automotive system management product line, designed specifically to enable high-dynamic-range, ASIL-B-compliant illumination control in HUD and digital cockpit displays.
FAQ
What is the primary system role of the TPS99000S-Q1 in a DLP automotive display?
The TPS99000S-Q1 serves as the illumination and system health controller in DLP automotive displays. It manages LED brightness via FET drivers (R_EN/G_EN/B_EN), conditions photodiode feedback through dual TIAs, digitizes optical data with its 12-bit ADC, regulates DMD voltages (+16V/+8.5V/–10V), and monitors thermal and supply conditions-all coordinated to achieve >5000:1 dimming in HUD applications. The TPS99000S-Q1 works alongside DLPC23xS-Q1 to form a complete DLP chipset.
Does the TPS99000S-Q1 support functional safety certification for automotive use?
Yes, the TPS99000S-Q1 is AEC-Q100 qualified (Grade 2, –40°C to +105°C) and designated as Functional Safety Quality-Managed. TI provides documentation supporting ISO 26262 system-level design up to ASIL-B, including failure mode analysis, diagnostic coverage data, and safety mechanism descriptions for watchdog timers, temperature monitors, supply supervisors, and SPI interface protections.
How many photodiode channels does the TPS99000S-Q1 support, and what is its dynamic range?
The TPS99000S-Q1 supports two independent photodiode channels via TIA1 and TIA2, with combined input current capability up to 7 mA. Each TIA offers 14 programmable gain settings (0.6–345.6 kV/A), enabling wide dynamic range optical sensing. The 12-bit ADC digitizes TIA outputs with up to 63 time-sequenced samples per video frame, supporting high-fidelity closed-loop brightness and color control essential for HUD applications.
What are the key power supply requirements for the TPS99000S-Q1's DMD voltage regulators?
The TPS99000S-Q1's DMD regulators require VIN_DRST = 5.5–7 V (6 V nominal) to generate VRESET = –10 V, VBIAS = +16 V, and VOFFSET = +8.5 V. Each output has defined capacitor requirements: 1 µF for VRESET and VOFFSET, 0.47 µF for VBIAS. All three rails include power-good flags and fast-discharge circuitry (260 µs typical), and must not be loaded beyond their specified current limits (e.g., 1.5 mA max for VBIAS).
Can the TPS99000S-Q1 operate without the DLPC23xS-Q1 display controller?
No-the TPS99000S-Q1 is designed as a companion device to the DLPC23xS-Q1 within the DLP553xS-Q1/DLP462xS-Q1 chipset. While it performs autonomous functions like power sequencing, watchdog monitoring, and ADC sampling, its RESET_Z, INT_Z, and PROJ_ON interfaces are electrically and functionally tied to DLPC23xS-Q1. Standalone operation is neither specified nor supported in the datasheet or application documentation.
TPS990STPZPQ1 Specifications
- Product attributes
- Attribute value
- Manufacturer:
- Texas Instruments
- Series:
- -
- Package/Case:
- 100-TQFP Exposed Pad
- Packaging:
- Tray
- Product Status:
- Active
- Applications:
- -
- Current - Supply:
- -
- Voltage - Supply:
- 3V ~ 3.6V
- Operating Temperature:
- -40°C ~ 105°C (TA)
- Grade:
- Automotive
- Qualification:
- AEC-Q100
- Mounting Type:
- Surface Mount
- Supplier Device Package:
- 100-HTQFP (14x14)
TPS990STPZPQ1 FAQ
1.How can I place an order for TPS990STPZPQ1 through Aetrix?
Please submit a Request for Quotation (RFQ) for TPS990STPZPQ1 on Aetrix. Our sales agent will provide a competitive quotation and guide you through the order confirmation once you accept the terms.
2.Are the price and stock information for TPS990STPZPQ1 reliable?
The price and inventory of TPS990STPZPQ1 are updated periodically and may fluctuate due to market conditions. Stock and pricing data are typically refreshed every 24 hours. Quotation validity for TPS990STPZPQ1 is usually 5 days.
3.What payment methods are accepted for TPS990STPZPQ1?
We accept Wire Transfer, PayPal, Credit Card, Western Union, MoneyGram, and Escrow for TPS990STPZPQ1 transactions.
Note: Certain payment methods may incur a processing fee.
4.How is shipping managed for TPS990STPZPQ1?
TPS990STPZPQ1 orders can be shipped via leading logistics carriers, including DHL, UPS, FedEx, TNT, or Registered Mail.
Once your TPS990STPZPQ1 order is processed, you will receive an email with the shipment details and tracking number.
Note: Tracking information may take up to 24 hours to appear. Express delivery typically takes 3–5 business days.
5.How can I obtain technical support or documentation for TPS990STPZPQ1?
For technical support, including TPS990STPZPQ1 datasheets, pinout diagrams, or application guidance, please contact our engineering support team. They can provide detailed documentation and assistance for your TPS990STPZPQ1 requirements.
6.How does Aetrix verify that TPS990STPZPQ1 is sourced from the original manufacturer or authorized distributors?
All TPS990STPZPQ1 products on Aetrix are procured from qualified distributors and authorized channels. Our dedicated quality assurance team conducts strict verification, including traceability checks and, if necessary, third-party testing. This ensures that TPS990STPZPQ1 meets industry standards.
7.What is the process for return or replacement of TPS990STPZPQ1?
All TPS990STPZPQ1 units undergo pre-shipment inspection (PSI). If there is an issue with TPS990STPZPQ1, returns or replacements are accepted under the following conditions:
1.Quantity discrepancies, incorrect items, or visible external defects (such as breakage or corrosion), acknowledged by Aetrix.
2.The issue is reported within 90 days of delivery.
3.The TPS990STPZPQ1 part is unused and in its original packaging.
Return procedure for TPS990STPZPQ1:
1.Submit a request within 90 days.
2.Obtain a Return Material Authorization (RMA) from Aetrix.
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