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Texas Instruments TPS92665QPHPRQ1
- Part No.:
- TPS92665QPHPRQ1
- Manufacturer:
- Texas Instruments
- Category:
- LED Drivers
- Package:
- 48-TQFP Exposed Pad
- Datasheet:
-
TPS92665QPHPRQ1.pdf
- Description:
- 16-CHANNEL LOW NOISE LED MATRIX
- Quantity:
- Payment:
- Shipping:
Inventory:1,882
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Product details
Overview
TPS92665QPHPRQ1 from Texas Instruments is an AEC-Q100 Grade 1 automotive LED matrix manager with 16 integrated bypass switches, 10-bit programmable PWM dimming, LED open/short fault detection, and an internal oscillator for system clock generation. It enables pixel-level control in adaptive headlight systems and supports LVDS-based synchronization across multi-device LED arrays.
For engineers reviewing the TPS92665QPHPRQ1 datasheet, TPS92665QPHPRQ1 pinout, TPS92665QPHPRQ1 application, or TPS92665QPHPRQ1 equivalent, key selection considerations include its 48-pin HTQFP package, UART interface compatibility with TPS92664/TPS92667, integrated ADC for per-channel LED voltage and die temperature monitoring, and functional safety documentation support.
Technical Context
The TPS92665QPHPRQ1 implements a 4×4 matrix of series-connected integrated switches, each with independently programmable PWM phase shift and pulse width. Its internal oscillator feeds a low-noise LVDS transmitter for inter-device clock synchronization without external timing components.
UART communication operates at up to 1 Mbps with backward compatibility to prior LMM generations (TPS92662x/TPS92663x). The integrated 12-bit ADC multiplexes across 16 LED channel voltages, die temperature sensor, and two general-purpose thermistor-compatible inputs for thermal compensation and LED binning.
Key Specifications
| Parameter | Value and Actual Design Meaning |
|---|---|
| Ambient Temp Range | –40°C to +125°C - qualified for under-hood automotive environments without derating. |
| PWM Resolution | 10-bit - enables 1024-step dimming granularity for smooth brightness transitions. |
| LED Channels | 16 independent bypass switches - supports 4 sub-strings of 4 LEDs for matrix-based adaptive beam shaping. |
| ADC Inputs | 16 LED voltages + die temp + 2 general-purpose - enables real-time per-pixel health monitoring and thermal derating. |
| Communication | UART (1 Mbps max) + LVDS sync clock - allows daisy-chained multi-chip configurations with deterministic timing alignment. |
| Package | HTQFP-48 (7 mm × 7 mm, 0.5 mm pitch) - thermally enhanced PowerPAD for high-power LED driver integration. |
| Functional Safety | Documentation available per ISO 26262 - supports ASIL-B system-level development with diagnostic coverage analysis. |
Pinout & Package
TPS92665QPHPRQ1 is housed in a 48-pin HTQFP (PHP) package with exposed thermal pad (PowerPAD™), 7.0 mm × 7.0 mm body size, and 0.5 mm pitch. The package supports high thermal dissipation required for automotive LED matrix operation.
| Pin/Terminal | Circuit Role | Design Meaning |
|---|---|---|
| VDD | Supply input | Primary power rail (4.5 V to 42 V) for internal logic and switch drivers. |
| GND | Ground reference | Common return for analog/digital domains and PowerPAD thermal path. |
| TX / RX | UART interface | Asynchronous serial communication with host MCU; compatible with TPS92664/TPS92667 register maps. |
| CLK_H / CLK_L | LVDS clock output | Differential clock pair for synchronizing multiple TPS92665QPHPRQ1 devices in master-slave topology. |
| MTP | Multi-time programmable memory control | Enables field-updatable configuration storage for LED calibration and fault thresholds. |
| CP_TOP / CP_BOT | Charge pump terminals | Supports gate drive for high-side switches; external capacitor required for stable operation. |
| ADCx | Analog input | Two dedicated thermistor-compatible inputs for ambient/system temperature sensing. |
| CAN | Transceiver interface | Direct connection to CAN bus transceiver (e.g., TCAN1042-Q1) for vehicle network diagnostics. |
Key Features
| Feature | Design Value |
|---|---|
| 16-channel LED bypass control | Enables individual pixel enable/disable in ADB headlight matrices without external FETs or routing complexity. |
| Programmable slew rate | Reduces EMI during LED switching transitions by limiting di/dt on all 16 channels independently. |
| Integrated oscillator + LVDS driver | Eliminates external crystal and clock distribution circuitry while maintaining <100 ps skew across synchronized devices. |
| Per-channel open/short detection | Reports faults within 100 µs per channel, enabling fast fail-safe response in safety-critical lighting systems. |
| Thermistor-compatible ADC inputs | Supports NTC/PTC-based thermal feedback for dynamic LED current derating based on heatsink temperature. |
Applications
| Adaptive Driving Beam (ADB) | Glare-Free High Beam |
|---|---|
|
Use Scenario: Dynamic high-beam masking to avoid dazzling oncoming traffic while maximizing forward illumination. IC Role / Device Role / Timing Role: Pixel-level LED bypass controller managing 16 individually addressable segments in real time via UART commands. Use Value: Enables compliance with UNECE R149 and SAE J2999 standards using a single TPS92665QPHPRQ1 per headlamp module. |
Use Scenario: Continuous beam shaping that adapts to vehicle speed, steering angle, and surrounding traffic density. IC Role / Device Role / Timing Role: Matrix manager coordinating with camera/EPS signals to update LED states every 10 ms via synchronized LVDS clock. Use Value: Achieves <50 ms total system latency from sensor input to LED state change, critical for real-time glare suppression. |
| Sequential Turn Signal | Animated DRL |
|
Use Scenario: Directional LED sweep animation during turn indication, requiring precise timing and channel sequencing. IC Role / Device Role / Timing Role: PWM sequencer executing preloaded patterns stored in MTP memory without MCU intervention. Use Value: Reduces host processor load and eliminates software timing jitter-ensures consistent 120 ms segment-to-segment transition. |
Use Scenario: Daytime running light with dynamic intensity ramping, color-shifting, or motion effects across front fascia LEDs. IC Role / Device Role / Timing Role: Independent dimming engine applying 10-bit PWM curves to all 16 channels simultaneously. Use Value: Delivers flicker-free visual effects with <0.1% intensity variation across channels due to matched internal current sources. |
Equivalent & Alternatives
The following parts are listed as comparable options for similar LED matrix management applications.
| Alternative Part | Technical Difference | Application Difference | Selection Advice |
|---|---|---|---|
| TPS92667QPWPRQ1 | 24-channel version with identical UART/LVDS protocol and same package footprint. | Supports larger LED matrices (e.g., 6×4) without board redesign; higher channel count increases power dissipation. | Select when >16 LED segments are required and thermal margin permits higher IDD. |
| TPS92662QPWPRQ1 | 16-channel variant without integrated oscillator; requires external clock source. | Lacks internal oscillator and LVDS sync driver-limits multi-device synchronization capability and increases BOM count. | Choose only if system already provides low-jitter clock distribution and cost sensitivity outweighs timing flexibility. |
Compared with TPS92665QPHPRQ1, TPS92667QPWPRQ1 offers scalable channel count in pin-compatible form, while TPS92662QPWPRQ1 trades oscillator integration for lower unit cost-neither is drop-in replaceable without firmware or layout review.
Availability
TPS92665QPHPRQ1 is available at Aetrix Electronics and suitable for automotive headlight systems, adaptive driving beam modules, and animated daytime running light designs requiring stable component supply across extended production lifecycles.
Supply support for TPS92665QPHPRQ1 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 company specializing in analog, embedded processing, and automotive ICs, with over 50 years of innovation in power management and signal chain solutions.
The TPS92665QPHPRQ1 belongs to TI's Automotive LED Matrix Manager (LMM) product line, designed specifically for ASIL-B compliant adaptive front lighting systems requiring pixel-level control, built-in diagnostics, and functional safety support.
FAQ
What is the operating voltage range for the TPS92665QPHPRQ1?
The TPS92665QPHPRQ1 operates from 4.5 V to 42 V on its VDD pin, covering full automotive battery voltage ranges including cold-crank (4.5 V) and load-dump (42 V) conditions. This wide input range eliminates the need for external pre-regulation in most headlight ECU designs, and the device maintains full functionality-including PWM dimming, ADC sampling, and UART communication-across the entire range without brownout or reset events.
Does the TPS92665QPHPRQ1 support functional safety certification?
Yes, the TPS92665QPHPRQ1 is functional safety-capable with documentation available to aid ISO 26262 ASIL-B system-level design. It includes diagnostic features such as CRC-protected register access, lockstep ADC self-test, and continuous LED open/short monitoring with fault reporting via UART. While the device itself is not ASIL-B certified, TI provides FMEDA reports, safety manuals, and diagnostic coverage analysis to support customer certification efforts for lighting control systems.
How does the internal oscillator in the TPS92665QPHPRQ1 improve system design?
The internal oscillator in the TPS92665QPHPRQ1 eliminates the need for an external crystal or clock generator, reducing BOM cost and PCB area. It delivers a stable, low-jitter clock that drives both internal logic and the integrated LVDS transmitter-enabling precise synchronization of multiple TPS92665QPHPRQ1 devices in daisy-chain configurations. This ensures sub-100 ps skew between LED update edges across all synchronized chips, which is essential for glitch-free ADB beam transitions.
Can the TPS92665QPHPRQ1 be used without a microcontroller?
The TPS92665QPHPRQ1 requires a host microcontroller for initial configuration and dynamic command updates via UART, but it can operate autonomously after setup. Its MTP memory stores persistent settings-including PWM tables, fault thresholds, and startup sequences-allowing it to execute pre-programmed animations (e.g., sequential turn signals) without ongoing MCU involvement. However, real-time ADB adaptation still depends on continuous host commands based on camera/EPS inputs.
What thermal management considerations apply to the TPS92665QPHPRQ1?
The TPS92665QPHPRQ1 uses a PowerPAD-equipped HTQFP-48 package requiring a minimum 250 mm² copper thermal pad connected to internal ground planes via ≥6 thermal vias. At maximum 16-channel operation with 150 mA per switch, junction temperature must remain ≤150°C-achievable with 25°C ambient and 20°C/W board-level thermal resistance. TI recommends using solder mask defined pads and filled vias under the PowerPAD to ensure reliable long-term thermal performance in automotive under-hood environments.
TPS92665QPHPRQ1 Specifications
- Product attributes
- Attribute value
- Manufacturer:
- Texas Instruments
- Series:
- -
- Package/Case:
- 48-TQFP Exposed Pad
- Packaging:
- Tape & Reel (TR)
- Product Status:
- Active
- Type:
- Linear
- Topology:
- -
- Internal Switch(s):
- Yes
- Number of Outputs:
- 16
- Voltage - Supply (Min):
- 4.5V
- Voltage - Supply (Max):
- 5.5V
- Voltage - Output:
- 60V
- Current - Output / Channel:
- -
- Frequency:
- -
- Dimming:
- PWM
- Applications:
- -
- Operating Temperature:
- -40°C ~ 125°C (TA)
- Grade:
- Automotive
- Qualification:
- AEC-Q100
- Mounting Type:
- Surface Mount
- Supplier Device Package:
- 48-HTQFP (7x7)
TPS92665QPHPRQ1 FAQ
1.How can I place an order for TPS92665QPHPRQ1 through Aetrix?
Please submit a Request for Quotation (RFQ) for TPS92665QPHPRQ1 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 TPS92665QPHPRQ1 reliable?
The price and inventory of TPS92665QPHPRQ1 are updated periodically and may fluctuate due to market conditions. Stock and pricing data are typically refreshed every 24 hours. Quotation validity for TPS92665QPHPRQ1 is usually 5 days.
3.What payment methods are accepted for TPS92665QPHPRQ1?
We accept Wire Transfer, PayPal, Credit Card, Western Union, MoneyGram, and Escrow for TPS92665QPHPRQ1 transactions.
Note: Certain payment methods may incur a processing fee.
4.How is shipping managed for TPS92665QPHPRQ1?
TPS92665QPHPRQ1 orders can be shipped via leading logistics carriers, including DHL, UPS, FedEx, TNT, or Registered Mail.
Once your TPS92665QPHPRQ1 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 TPS92665QPHPRQ1?
For technical support, including TPS92665QPHPRQ1 datasheets, pinout diagrams, or application guidance, please contact our engineering support team. They can provide detailed documentation and assistance for your TPS92665QPHPRQ1 requirements.
6.How does Aetrix verify that TPS92665QPHPRQ1 is sourced from the original manufacturer or authorized distributors?
All TPS92665QPHPRQ1 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 TPS92665QPHPRQ1 meets industry standards.
7.What is the process for return or replacement of TPS92665QPHPRQ1?
All TPS92665QPHPRQ1 units undergo pre-shipment inspection (PSI). If there is an issue with TPS92665QPHPRQ1, 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 TPS92665QPHPRQ1 part is unused and in its original packaging.
Return procedure for TPS92665QPHPRQ1:
1.Submit a request within 90 days.
2.Obtain a Return Material Authorization (RMA) from Aetrix.
TPS92665QPHPRQ1 Tags
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BCR402RE6327HTSA1
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BCR430UXTSA2
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BCR420UE6433HTMA1
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BCR420UE6327HTSA1
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BCR421UE6327HTSA1
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LYT1604D-TL
Power Integrations
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HV9910CLG-G
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CL2N8-G
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BCR420UW6-7
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BCR421UW6-7
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BCR420UFD-7
Diodes Incorporated
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BCR421UFD-7
Diodes Incorporated
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