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Texas Instruments TLC69652QPWPRQ1
- Part No.:
- TLC69652QPWPRQ1
- Manufacturer:
- Texas Instruments
- Category:
- LED Drivers
- Package:
- 28-PowerTSSOP (0.173", 4.40mm Width)
- Datasheet:
-
TLC69652QPWPRQ1.pdf
- Description:
- AUTOMOTIVE 32 MINI-LED MATRIX LO
- Quantity:
- Payment:
- Shipping:
Inventory:2,718
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Product details
Overview
TLC69652QPWPRQ1 from Texas Instruments is an AEC-Q100 Grade 1 automotive LED driver IC designed for local dimming backlight control in LCD displays. It integrates 16 high-precision constant-current sinks (30mA/50V), supports 2/4/8 time-multiplexing, and delivers up to 15-bit brightness resolution with PWM/hybrid dimming control - deployed in central infotainment, cluster, and HUD systems.
For engineers reviewing the TLC69652QPWPRQ1 datasheet, TLC69652QPWPRQ1 pinout, TLC69652QPWPRQ1 application, or TLC69652QPWPRQ1 equivalent, key selection criteria include its 50V output compliance, adaptive headroom voltage control (AHVC), UART/interrupt and two-wire (CLK_O/SOUT) diagnostic reporting, and daisy-chain interface supporting >32,000 zones across 1024 devices.
Technical Context
The TLC69652QPWPRQ1 operates within a 3V–5.5V VCC range and implements adaptive headroom voltage control (AHVC) to dynamically regulate DC/DC feedback via the FB pin of the last device in chain - minimizing power loss and enabling simplified system layout. Its daisy-chain topology uses a two-wire serial interface (CLK_I/SIN) with 20MHz max data rate and 1.8V/3.3V I/O compatibility.
Each channel provides ±2% (typ.) channel-to-channel current matching and ±2% (typ.) device-to-device error. Diagnostics include per-zone LED open/short detection (LOD/LSD), thermal shutdown (TSD), and dual readback options: UART + INT pin or CLK_O/SOUT two-wire output - all programmable via register configuration.
Key Specifications
| Parameter | Value and Actual Design Meaning |
|---|---|
| Output Current / Voltage | 30mA per channel, 50V compliance - enables driving high-Vf LED strings in automotive LCD backlights without external boost stages. |
| Brightness Resolution | Up to 15-bit - supports fine-grained local dimming for high dynamic range (HDR) display quality and black-level fidelity. |
| Dimming Control | PWM + hybrid mode with global 8-bit maximum current (MC) setting - allows independent intensity scaling and temporal control per zone. |
| Daisy-Chain Interface | 20MHz max data rate, 1.8V/3.3V I/O compatible - ensures robust, high-speed communication across long chains (>1000 devices). |
| Power Consumption | ≤200μA standby, ≤3.5mA normal mode - reduces system-level quiescent load in always-on automotive displays. |
| Diagnostic Reporting | UART + INT pin OR CLK_O/SOUT two-wire output - provides flexible fault telemetry integration into host MCU without additional bus overhead. |
| AEC-Q100 Grade | Grade 1 (–40°C to +125°C TA), HBM Level 2, CDM Level C4B - certified for under-hood and instrument panel deployment. |
Pinout & Package
Package: HTSSOP-28 (PWP), 9.7mm × 4.4mm body, PowerPAD™ thermal-enhanced exposed pad, wettable flank option available.
| Pin/Terminal | Circuit Role | Design Meaning |
|---|---|---|
| VCC | Supply input | 3V–5.5V main power rail; decoupling required near pin for noise-sensitive analog current sinks. |
| GND | Ground reference | Common return for analog/digital domains; tied to PowerPAD for thermal and EMI performance. |
| CLK_I | Input clock | Master clock input for daisy-chain timing; synchronous with SIN data edge for reliable shift-in. |
| SIN | Serial data input | Configures device registers and brightness SRAM; propagates to next device's SIN via SOUT. |
| SOUT | Serial data output | Shifts out internal status or diagnostic data (e.g., LOD/LSD flags) in readback mode. |
| CLK_O | Output clock | Drives downstream device CLK_I; maintains chain synchronization without external clock fanout. |
| FB | Feedback input | Only connected on final device in chain; controls DC/DC converter output voltage via AHVC loop. |
| INT | Interrupt output | Active-low open-drain flag signaling LOD, LSD, or TSD events - enables event-driven host response. |
| OUT0–OUT15 | Constant-current outputs | 16 dedicated sink terminals; each drives one LED string with matched 30mA capability and 50V headroom. |
Key Features
| Feature | Design Value |
|---|---|
| Adaptive Headroom Voltage Control (AHVC) | Reduces power dissipation by dynamically adjusting DC/DC output to match minimum required VLED, lowering thermal stress and improving efficiency. |
| Programmable Interface Driving Strength | Adjusts CLK_I/SIN slew rate to suppress EMI in noisy automotive environments without sacrificing 20MHz throughput. |
| Integrated 4-Phase Shifting Schemes | Staggered PWM timing across channels minimizes peak current draw and input capacitor ripple, easing EMC compliance. |
| Minimum Brightness Update Latency | Enables rapid frame-synchronized dimming updates - critical for motion blur reduction and variable refresh rate (VRR) support. |
| Black Insertion Support | Hardware-assisted blanking between frames improves contrast ratio and perceived black level in high-brightness ambient conditions. |
Applications
| Automotive Central Infotainment Display | Automotive Digital Instrument Cluster |
|---|---|
|
Use Scenario: High-resolution LCD backlight with localized dimming zones behind touch-sensitive UI layers. IC Role / Device Role / Timing Role: 16-channel constant-current sink managing per-zone luminance in real time via daisy-chained SPI-like interface. Use Value: Enables >10,000:1 contrast ratio and glare-free readability under direct sunlight while maintaining AEC-Q100 reliability. |
Use Scenario: Compact, thermally constrained gauge cluster requiring precise brightness uniformity across analog speedometer and digital tachometer zones. IC Role / Device Role / Timing Role: Local dimming controller synchronizing with display frame rate to eliminate flicker during rapid needle sweeps. Use Value: Delivers consistent color temperature and zero visible banding across wide viewing angles and temperature ranges (–40°C to +125°C). |
| Automotive Head-Up Display (HUD) | Advanced Driver Assistance Systems (ADAS) Display Overlay |
|
Use Scenario: Projection-based HUD with segmented backlight to enhance virtual image clarity against varying road illumination. IC Role / Device Role / Timing Role: Time-multiplexed 8x dimming control (via TLC696x8-Q1 variant pairing) enabling dynamic focus-area highlighting. Use Value: Supports black insertion and VRR features to reduce motion blur during high-speed driving scenarios. |
Use Scenario: Safety-critical overlay display showing ADAS alerts (e.g., lane departure, forward collision) atop primary navigation view. IC Role / Device Role / Timing Role: Fault-tolerant LED driver with integrated LOD/LSD/TSD diagnostics reported via UART or two-wire interface. Use Value: Meets ASIL-B functional safety requirements through deterministic fault detection and host-reportable status flags. |
Equivalent & Alternatives
The following parts are listed as comparable options for similar LED driver applications.
| Alternative Part | Technical Difference | Application Difference | Selection Advice |
|---|---|---|---|
| TLC69652QRTWRQ1 | Same electrical specs, but WQFN-24 (4mm × 4mm) package with Level-1 MSL rating - no moisture bake requirement. | Better suited for space-constrained PCB layouts and reflow processes requiring unlimited floor life. | Select when board area is limited and thermal pad soldering is feasible; verify thermal design with smaller footprint. |
| TLC69662QPWPRQ1 | 60mA/50V output capability vs. TLC69652QPWPRQ1's 30mA/50V - higher current per channel, same pinout and interface. | Required for high-luminance HUDs or displays using low-Vf LED arrays needing >30mA per zone. | Choose when higher per-channel drive strength is needed without changing layout or firmware interface logic. |
Compared with TLC69652QRTWRQ1, the TLC69652QPWPRQ1 offers identical functionality in a larger HTSSOP package with enhanced thermal mass and easier hand-soldering access; versus TLC69662QPWPRQ1, it trades current capability for lower power density and reduced thermal stress in moderate-brightness applications.
Availability
TLC69652QPWPRQ1 is available at Aetrix Electronics and suitable for automotive central infotainment, digital instrument clusters, and head-up display systems requiring stable component supply, AEC-Q100 compliance, and long-term production continuity.
Supply support for TLC69652QPWPRQ1 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 delivering analog, embedded processing, and automotive-grade ICs with decades of automotive qualification expertise and functional safety infrastructure.
The TLC696x2/4/8-Q1 product line was engineered specifically for high-reliability automotive LCD local dimming - emphasizing precision current matching, daisy-chain scalability, and integrated diagnostics for ASIL-ready display subsystems.
FAQ
What is the maximum output voltage compliance of the TLC69652QPWPRQ1?
The TLC69652QPWPRQ1 supports up to 50V output voltage compliance per channel, allowing direct drive of multi-LED series strings common in automotive LCD backlights without intermediate boost circuitry. This specification is confirmed in the device family datasheet Section 1 (Features) and applies specifically to the "x52" variant designation within the TLC696x2/4/8-Q1 family.
Does the TLC69652QPWPRQ1 support functional safety certification?
Yes, the TLC69652QPWPRQ1 is functional safety-capable with documentation available to aid ISO 26262 ASIL-B system design. It includes integrated diagnostics (LED open/short, thermal shutdown) and dual reporting paths (UART/INT or CLK_O/SOUT), all explicitly validated for the TLC69652QPWPRQ1 in TI's functional safety documentation package SNVSCK7.
What package type and thermal characteristics does the TLC69652QPWPRQ1 use?
The TLC69652QPWPRQ1 uses the HTSSOP-28 (PWP) package with PowerPAD™ thermal enhancement, measuring 9.7mm × 4.4mm and featuring an exposed thermal pad for improved heat dissipation. Its MSL Level-3 rating requires floor life management before reflow, and the package supports wettable flank inspection per J-STD-020.
How many devices can be daisy-chained using the TLC69652QPWPRQ1 interface?
The TLC69652QPWPRQ1 supports daisy-chaining up to 1024 devices using its two-wire serial interface (CLK_I/SIN), enabling control of over 32,000 local dimming zones. This scalability is documented in the device description section and verified in TI's application note SNVA924 for large-area automotive displays.
What diagnostic functions are built into the TLC69652QPWPRQ1?
The TLC69652QPWPRQ1 integrates three dedicated diagnostics: LED open detection (LOD), LED short detection (LSD), and thermal shutdown detection (TSD), each reportable via either UART + INT pin or CLK_O/SOUT two-wire output. These functions are register-programmable and operate independently per channel, as specified in the device's diagnostic architecture section.
TLC69652QPWPRQ1 Specifications
- Product attributes
- Attribute value
- Manufacturer:
- Texas Instruments
- Series:
- -
- Package/Case:
- 28-PowerTSSOP (0.173", 4.40mm Width)
- Packaging:
- Tape & Reel (TR)
- Product Status:
- Active
- Type:
- Linear
- Topology:
- Shift Register
- Internal Switch(s):
- No
- Number of Outputs:
- 16
- Voltage - Supply (Min):
- 3V
- Voltage - Supply (Max):
- 5.5V
- Voltage - Output:
- 50V
- Current - Output / Channel:
- 30mA
- Frequency:
- -
- Dimming:
- PWM
- Applications:
- Backlight
- Operating Temperature:
- -40°C ~ 125°C (TA)
- Grade:
- Automotive
- Qualification:
- AEC-Q100
- Mounting Type:
- Surface Mount
- Supplier Device Package:
- 28-HTSSOP
TLC69652QPWPRQ1 FAQ
1.How can I place an order for TLC69652QPWPRQ1 through Aetrix?
Please submit a Request for Quotation (RFQ) for TLC69652QPWPRQ1 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 TLC69652QPWPRQ1 reliable?
The price and inventory of TLC69652QPWPRQ1 are updated periodically and may fluctuate due to market conditions. Stock and pricing data are typically refreshed every 24 hours. Quotation validity for TLC69652QPWPRQ1 is usually 5 days.
3.What payment methods are accepted for TLC69652QPWPRQ1?
We accept Wire Transfer, PayPal, Credit Card, Western Union, MoneyGram, and Escrow for TLC69652QPWPRQ1 transactions.
Note: Certain payment methods may incur a processing fee.
4.How is shipping managed for TLC69652QPWPRQ1?
TLC69652QPWPRQ1 orders can be shipped via leading logistics carriers, including DHL, UPS, FedEx, TNT, or Registered Mail.
Once your TLC69652QPWPRQ1 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 TLC69652QPWPRQ1?
For technical support, including TLC69652QPWPRQ1 datasheets, pinout diagrams, or application guidance, please contact our engineering support team. They can provide detailed documentation and assistance for your TLC69652QPWPRQ1 requirements.
6.How does Aetrix verify that TLC69652QPWPRQ1 is sourced from the original manufacturer or authorized distributors?
All TLC69652QPWPRQ1 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 TLC69652QPWPRQ1 meets industry standards.
7.What is the process for return or replacement of TLC69652QPWPRQ1?
All TLC69652QPWPRQ1 units undergo pre-shipment inspection (PSI). If there is an issue with TLC69652QPWPRQ1, 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 TLC69652QPWPRQ1 part is unused and in its original packaging.
Return procedure for TLC69652QPWPRQ1:
1.Submit a request within 90 days.
2.Obtain a Return Material Authorization (RMA) from Aetrix.
TLC69652QPWPRQ1 Tags
-
BCR402RE6327HTSA1
Infineon Technologies
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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
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