My Inquiry
My Account
Texas Instruments TPS929160QDCPRQ1
- Part No.:
- TPS929160QDCPRQ1
- Manufacturer:
- Texas Instruments
- Category:
- LED Drivers
- Package:
- 38-PowerTFSOP (0.173", 4.40mm Width)
- Datasheet:
-
TPS929160QDCPRQ1.pdf
- Description:
- AUTOMOTIVE 16-CHANNEL 40-V HIGH-
- Quantity:
- Payment:
- Shipping:
Inventory:1,083
Please send an inquiry. Send us your inquiry, and we will respond immediately.
Product details
Overview
TPS929160QDCPRQ1 from Texas Instruments is an AEC-Q100 Grade 1 automotive 16-channel high-side LED driver with FlexWire™ interface, 4.5V–40V VBAT supply, 4V–36V LED supply, ±5% current accuracy at 5–100mA, and 12-bit independent PWM dimming up to 20kHz - designed for pixel-level control in exterior headlight and rear light modules.
For engineers reviewing the TPS929160QDCPRQ1 datasheet, TPS929160QDCPRQ1 pinout, TPS929160QDCPRQ1 application, or TPS929160QDCPRQ1 equivalent, key selection considerations include fail-safe state programmability via EEPROM, FlexWire bus scalability (up to 16 devices), integrated 5V/80mA LDO for CAN transceivers, and diagnostic coverage for LED open/short and single-LED short circuits.
Technical Context
The TPS929160QDCPRQ1 implements a UART-based FlexWire™ interface with embedded CRC and watchdog, supporting up to 1MHz clock and 24-byte frames across daisy-chained devices. Its 16-channel architecture uses resistor-set global + 6-bit per-channel current control and independent 12-bit PWM with phase-shift capability to reduce EMI.
Each channel integrates analog current regulation with <750mV dropout at 100mA, while diagnostics include 8-bit ADC for voltage monitoring, programmable SUPPLY undervoltage thresholds (2.875V rising), and configurable FAIL-SAFE states triggered by communication loss or thermal events (TSD1 = 175°C).
Key Specifications
| Parameter | Value and Actual Design Meaning |
|---|---|
| Channel count | 16 independent high-side constant-current outputs for individual LED string control |
| Supply range (VBAT) | 4.5V to 40V - supports direct connection to automotive battery with jump-start and load-dump tolerance |
| Output current accuracy | ±5% at 5–100mA - enables precise brightness matching across pixels without external calibration |
| PWM resolution & frequency | 12-bit independent dimming, programmable up to 20kHz - eliminates visible flicker and supports high-speed animation |
| FlexWire™ interface | UART-based, up to 1MHz, 16-device bus - replaces CAN/LIN PHY with lower-cost, EMC-robust off-board communication |
| Fault diagnostics | LED open-circuit, short-to-ground, single-LED short, SUPPLY UVLO, overtemperature - all with deglitch timers and ERR pin indication |
| Fail-safe operation | User-programmable EEPROM stores pre-defined output states (on/off per channel) activated automatically on MCU disconnect |
Pinout & Package
TPS929160QDCPRQ1 is housed in a 38-pin HTSSOP (DCP) package with PowerPAD™, measuring 9.70mm × 4.40mm, optimized for thermal dissipation in automotive lighting modules.
| Pin/Terminal | Circuit Role | Design Meaning |
|---|---|---|
| RX / TX | FlexWire™ serial interface I/O | Asynchronous UART receive/transmit pins enabling daisy-chain configuration without external crystal |
| VLDO | 5V LDO output | Supplies up to 80mA to external CAN transceivers (e.g., TCAN1042-Q1); regulated from VBAT input |
| ERR | Open-drain fault indicator | Asserts low on any detected fault (open/short/UVLO/overtemp); requires external pull-up for system-level monitoring |
| EN / NSTB | Enable & FlexWire NSTB output | EN controls device sleep mode (5µA shutdown current); NSTB provides synchronized timing signal for multi-device PWM alignment |
| ADDR0–ADDR3 | 4-bit hardware address inputs | Set unique device address (0–15) on shared FlexWire bus; internal 240kΩ pull-down resistors enable default addressing |
| OUTA0–OUTH1 | 16 high-side current outputs | Individually controllable channels (A–H, 0/1 pairs); each supports analog + PWM dimming and dropout <750mV @100mA |
| FS0 / FS1 | Fail-safe state selection inputs | Hardware-selectable of four pre-programmed FAIL-SAFE configurations (e.g., one-fails-all-fail or per-channel override) |
| REF | Current reference input | Analog pin setting global current scale via external resistor (6.34kΩ–31.6kΩ); supports 1mA–100mA full-scale range |
Key Features
| Feature | Design Value |
|---|---|
| FlexWire™ interface | UART-based, CRC-protected, watchdog-monitored bus supporting up to 16 devices - eliminates need for external CAN PHY while meeting automotive EMC requirements |
| Programmable fail-safe states | EEPROM-stored output configurations (per-channel on/off) activated automatically during MCU failure or communication loss - satisfies ASIL-B functional safety requirements |
| Phase-shift PWM dimming | Independent 12-bit PWM timing per channel with adjustable phase offset - reduces peak current and conducted EMI in multi-string systems |
| Integrated 5V/80mA LDO | Dedicated VLDO pin supplies external CAN transceivers directly from VBAT - removes need for separate LDO IC and simplifies BOM |
| Comprehensive diagnostics | Real-time detection of LED open, short-to-ground, single-LED short, SUPPLY UVLO, and overtemperature - all with user-configurable thresholds and deglitch timers |
| 8-bit ADC monitoring | On-chip ADC measures voltages at REF, SUPPLY, and channel outputs - enables closed-loop thermal derating and supply condition awareness without external sensors |
Applications
| Automotive Exterior Headlight | Automotive Exterior Rear Light |
|---|---|
|
Use Scenario: Adaptive driving beam (ADB) systems requiring independent control of >100 LED pixels for dynamic glare-free illumination. IC Role / Device Role / Timing Role: High-side current driver with 12-bit PWM and phase-shift capability per channel to manage pixel brightness and timing synchronization across multiple TPS929160QDCPRQ1 devices. Use Value: Enables smooth, flicker-free animation at 20kHz while reducing EMI through channel-phase shifting - critical for meeting CISPR 25 Class 5 emissions limits. |
Use Scenario: Sequential turn signal and brake light animations using segmented LED arrays on rear lamp PCBs. IC Role / Device Role / Timing Role: 16-channel driver managing discrete LED strings (e.g., CHMSL, turn, reverse) with independent current and PWM settings per function. Use Value: Achieves ±5% current matching across channels for consistent luminance, and leverages FlexWire™ for robust off-board communication between body controller and rear lamp module. |
| Automotive Interior Ambient Light | Automotive Cluster Display |
|
Use Scenario: Soft, uniform cabin lighting with dynamic color temperature and intensity adjustment across door panels, footwells, and overhead modules. IC Role / Device Role / Timing Role: Constant-current source for RGBW LED strings, using 2-bit global + 6-bit per-channel current control to balance white point and dimming linearity. Use Value: Supports linear and exponential dimming methods to match human eye response, while integrated diagnostics prevent single-LED failure from disrupting ambient light uniformity. |
Use Scenario: TFT backlight control in digital instrument clusters with localized dimming zones for contrast enhancement and power savings. IC Role / Device Role / Timing Role: High-voltage (up to 36V) high-side driver powering multiple parallel LED strings behind LCD layers, with fail-safe state preserving minimum visibility during MCU reset. Use Value: Fail-safe EEPROM configuration ensures cluster remains partially lit (e.g., speedometer only) during communication interruption - supporting ISO 26262 ASIL-B requirements. |
Equivalent & Alternatives
The following parts are listed as comparable options for similar high-side LED driver applications.
| Alternative Part | Technical Difference | Application Difference | Selection Advice |
|---|---|---|---|
| TPS92692QPWPRQ1 | 16-channel, 40V high-side driver with SPI interface; no FlexWire™, no integrated 5V LDO, no EEPROM-based fail-safe | Lacks daisy-chain capability and autonomous fail-safe operation; requires external LDO and MCU-managed fault recovery | Choose when SPI infrastructure exists and fail-safe autonomy is not required; lower system cost but higher software complexity |
| MAX20051ATPA/V+T | 8-channel, 45V high-side driver with I²C interface; includes boost converter, no phase-shift PWM, no ADC | Half the channel count; integrated boost enables low-VIN operation but adds switching noise; no built-in diagnostics beyond open/short | Prefer for space-constrained designs needing VIN down to 3.5V; unsuitable for pixel-level animation or fail-safe-critical rear lighting |
Compared with TPS929160QDCPRQ1, TPS92692QPWPRQ1 offers SPI compatibility but sacrifices FlexWire™ scalability and autonomous fail-safe, while MAX20051ATPA/V+T provides integrated boost at the expense of channel density, diagnostics depth, and PWM flexibility - making TPS929160QDCPRQ1 uniquely suited for ADB and sequential rear lighting where daisy-chain reliability and EEPROM-backed safety are mandatory.
Availability
TPS929160QDCPRQ1 is available at Aetrix Electronics and suitable for automotive exterior headlight, rear light, and digital cluster display applications requiring stable component supply, AEC-Q100 qualification, and long-term production continuity.
Supply support for TPS929160QDCPRQ1 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 experience delivering AEC-Q100-qualified solutions for safety-critical vehicle systems.
The TPS929160QDCPRQ1 belongs to TI's automotive LED driver portfolio, engineered specifically for pixel-controlled exterior lighting with emphasis on EMC resilience, functional safety, and daisy-chain scalability in distributed lamp architectures.
FAQ
What is the maximum number of TPS929160QDCPRQ1 devices supported on a single FlexWire™ bus?
The TPS929160QDCPRQ1 supports up to 16 devices on one FlexWire™ bus using hardware address pins ADDR0–ADDR3. Each device must be assigned a unique 4-bit address (0–15) to avoid command collisions. The interface uses frame-based addressing with CRC validation, ensuring reliable communication even in noisy automotive environments.
Does TPS929160QDCPRQ1 support both analog and PWM dimming simultaneously on the same channel?
Yes, the TPS929160QDCPRQ1 supports concurrent analog (via REF resistor and 2-bit global + 6-bit per-channel current scaling) and PWM (12-bit independent duty cycle) dimming on each of its 16 channels. This dual-mode capability allows fine-grained brightness control - analog sets baseline current, while PWM handles dynamic modulation without affecting color consistency.
How does the fail-safe functionality of TPS929160QDCPRQ1 operate during MCU communication loss?
When MCU communication is lost, the TPS929160QDCPRQ1's internal watchdog triggers automatic entry into a pre-programmed FAIL-SAFE state stored in EEPROM. This state defines per-channel on/off status and can be selected via FS0/FS1 pins. No external intervention is needed - the device maintains defined lighting behavior autonomously, satisfying ASIL-B functional safety requirements.
What is the role of the VLDO pin on TPS929160QDCPRQ1, and what load can it drive?
The VLDO pin on TPS929160QDCPRQ1 delivers a regulated 5V output (4.75–5.25V) sourced from VBAT, capable of supplying up to 80mA continuous current. It is designed to power external CAN transceivers such as TCAN1042-Q1, eliminating the need for a separate LDO. A 1–10µF ceramic capacitor is required on VLDO for stability and transient response.
Can TPS929160QDCPRQ1 detect a single LED short within a multi-LED string?
Yes, the TPS929160QDCPRQ1 includes dedicated single-LED short-circuit detection per channel, with programmable thresholds (e.g., 2.5V rising) and 8µs deglitch timing. This feature distinguishes partial shorts (e.g., one LED shorted in a 3-LED series string) from full string shorts, enabling precise fault isolation in high-reliability lighting systems.
TPS929160QDCPRQ1 Specifications
- Product attributes
- Attribute value
- Manufacturer:
- Texas Instruments
- Series:
- -
- Package/Case:
- 38-PowerTFSOP (0.173", 4.40mm Width)
- Packaging:
- Tape & Reel (TR)
- Product Status:
- Active
- Type:
- Linear
- Topology:
- Constant Current
- Internal Switch(s):
- No
- Number of Outputs:
- 16
- Voltage - Supply (Min):
- 4.5V
- Voltage - Supply (Max):
- 40V
- Voltage - Output:
- 4V ~ 36V
- Current - Output / Channel:
- 100mA
- Frequency:
- 32.15MHz
- Dimming:
- Analog, PWM
- Applications:
- -
- Operating Temperature:
- -40°C ~ 125°C (TA)
- Grade:
- Automotive
- Qualification:
- AEC-Q100
- Mounting Type:
- Surface Mount
- Supplier Device Package:
- 38-HTSSOP
TPS929160QDCPRQ1 FAQ
1.How can I place an order for TPS929160QDCPRQ1 through Aetrix?
Please submit a Request for Quotation (RFQ) for TPS929160QDCPRQ1 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 TPS929160QDCPRQ1 reliable?
The price and inventory of TPS929160QDCPRQ1 are updated periodically and may fluctuate due to market conditions. Stock and pricing data are typically refreshed every 24 hours. Quotation validity for TPS929160QDCPRQ1 is usually 5 days.
3.What payment methods are accepted for TPS929160QDCPRQ1?
We accept Wire Transfer, PayPal, Credit Card, Western Union, MoneyGram, and Escrow for TPS929160QDCPRQ1 transactions.
Note: Certain payment methods may incur a processing fee.
4.How is shipping managed for TPS929160QDCPRQ1?
TPS929160QDCPRQ1 orders can be shipped via leading logistics carriers, including DHL, UPS, FedEx, TNT, or Registered Mail.
Once your TPS929160QDCPRQ1 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 TPS929160QDCPRQ1?
For technical support, including TPS929160QDCPRQ1 datasheets, pinout diagrams, or application guidance, please contact our engineering support team. They can provide detailed documentation and assistance for your TPS929160QDCPRQ1 requirements.
6.How does Aetrix verify that TPS929160QDCPRQ1 is sourced from the original manufacturer or authorized distributors?
All TPS929160QDCPRQ1 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 TPS929160QDCPRQ1 meets industry standards.
7.What is the process for return or replacement of TPS929160QDCPRQ1?
All TPS929160QDCPRQ1 units undergo pre-shipment inspection (PSI). If there is an issue with TPS929160QDCPRQ1, 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 TPS929160QDCPRQ1 part is unused and in its original packaging.
Return procedure for TPS929160QDCPRQ1:
1.Submit a request within 90 days.
2.Obtain a Return Material Authorization (RMA) from Aetrix.
TPS929160QDCPRQ1 Tags
-
BCR402RE6327HTSA1
Infineon Technologies
-
BCR430UXTSA2
Infineon Technologies
-
BCR420UE6433HTMA1
Infineon Technologies
-
BCR420UE6327HTSA1
Infineon Technologies
-
BCR421UE6327HTSA1
Infineon Technologies
-
LYT1604D-TL
Power Integrations
-
HV9910CLG-G
Microchip Technology
-
CL2N8-G
Microchip Technology
-
BCR420UW6-7
Diodes Incorporated
-
BCR421UW6-7
Diodes Incorporated
-
BCR420UFD-7
Diodes Incorporated
-
BCR421UFD-7
Diodes Incorporated
Tech Hub
A practical engineering guide to 3.3V and 5V logic compatibility, input thresholds, resistor dividers, translator ICs, MOSFET level shifting, I2C pull-ups, timing limits and power-sequencing risks.
The 74HC595 uses push-pull logic outputs, while the TPIC6B595 uses 50 V open-drain DMOS sinks for higher-power loads. This guide compares timing, current limits, 3.3 V interfacing, load wiring, thermal…
The 74HC595 converts serial data into eight stable parallel outputs. This guide covers pin functions, shift and storage timing, OE and MR behavior, drive-current limits, cascading, voltage compatibilit…
A technical comparison of level-sensitive latches and edge-triggered flip-flops, covering timing windows, setup and hold limits, master–slave operation, time borrowing, race-through, HDL inference and…
A D latch stores one bit while Enable controls when data can pass. This reference covers gate-level operation, truth tables, transparency, setup and hold timing, LE versus OE, common ICs and practical …
An SR latch stores one bit through cross-coupled feedback. This engineering reference covers NOR and NAND implementations, truth tables, forbidden-state recovery, gated operation, switch debouncing, fa…
Latch circuits retain one bit through feedback. This technical reference covers SR and D latches, truth tables, transparency, timing limits, latch-versus-flip-flop behavior, applications and common log…
An engineering guide to LED driver operation, constant-current and constant-voltage outputs, linear and switching topologies, dimming, IC selection, calculations, replacement compatibility, and fault c…
Operational amplifier guide covering op amp basics, feedback, ideal vs real op amps, common configurations, buffer circuits, offset, bias current, gain-bandwidth, slew rate, rail-to-rail limits and sel…
Jumper cables guide covering safe connection order, red and black clamp placement, final ground connection, cable gauge, length, clamp quality, copper vs CCA cables, jump starter comparison and battery…
