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Texas Instruments TLC69601QRTWRQ1
- Part No.:
- TLC69601QRTWRQ1
- Manufacturer:
- Texas Instruments
- Category:
- LED Drivers
- Package:
- 24-WFQFN Exposed Pad
- Datasheet:
-
TLC69601QRTWRQ1.pdf
- Description:
- AUTOMOTIVE LOCAL DIMMING MINI-LE
- Quantity:
- Payment:
- Shipping:
Inventory:2,215
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Product details
Overview
TLC69601QRTWRQ1 from Texas Instruments is an AEC-Q100 Grade 1 (–40°C to +125°C) 16-channel automotive LED driver IC for local dimming backlight systems, delivering 30mA per channel at up to 20V output compliance, ±2% device-to-device and channel-to-channel current matching, and integrated UART/INT or SOUT/CLK_O diagnostic readback - deployed in central infotainment displays requiring precise zone control and functional safety support.
For engineers reviewing the TLC69601QRTWRQ1 datasheet, TLC69601QRTWRQ1 pinout, TLC69601QRTWRQ1 application, or TLC69601QRTWRQ1 equivalent, this page delivers verified package mapping (WQFN-24), daisy-chain interface timing (20MHz), adaptive headroom voltage control (AHVC), thermal shutdown detection, and real-world automotive display use cases - all grounded in TI's production-grade SNVSCK8 documentation.
Technical Context
The TLC69601QRTWRQ1 implements a constant-current sink architecture with SRAM-based brightness storage per channel, enabling up to 15-bit PWM/hybrid dimming resolution and black insertion/VRR features to enhance LCD contrast and motion clarity. Its daisy-chain two-wire serial interface supports up to 1024 devices for 16,000-zone local dimming scalability.
Adaptive Headroom Voltage Control (AHVC) dynamically regulates DC/DC feedback via the FB pin of the last device in chain, minimizing power loss while maintaining LED forward voltage margin. Diagnostics include per-zone LED open/short detection and thermal shutdown, reported via programmable UART/INT or CLK_O/SOUT outputs.
Key Specifications
| Parameter | Value and Actual Design Meaning |
|---|---|
| Output channels | 16 independent constant-current sinks for local dimming zones |
| Max output current/voltage | 30mA per channel at up to 20V compliance - sufficient for typical automotive LED strings |
| Current accuracy | ±2% (typ.) device-to-device and channel-to-channel error - enables uniform luminance across display zones |
| Dimming resolution | Up to 15-bit brightness control - supports fine-grained contrast adjustment and HDR rendering |
| Interface speed | Up to 20MHz daisy-chain data rate - ensures sub-millisecond update latency for dynamic content |
| Supply voltage | 3V to 5.5V VCC - compatible with standard automotive 3.3V/5V rails |
| Quiescent current | ≤200μA standby / ≤3.5mA normal mode - reduces system-level power budget impact |
Pinout & Package
Package: WQFN-24 (RTW), 4mm × 4mm wettable flank, 0.8mm max height, exposed thermal pad (Pin 25), JEDEC MO-220 compliant, MSL Level-1 (UNLIM reflow).
| Pin/Terminal | Circuit Role | Design Meaning |
|---|---|---|
| VCC | Power supply input | 3V–5.5V main supply for logic and driver circuitry; bypass capacitor required |
| GND | Ground reference | Common return path for logic, analog, and high-current LED sinks |
| CLK_I | Serial clock input | Accepts 1.8V/3.3V-compatible clock for daisy-chain synchronization |
| SIN | Serial data input | Receives configuration and brightness data from upstream device or host controller |
| SOUT | Serial data output | Drives downstream device in daisy chain; supports diagnostic readback in two-wire mode |
| CLK_O | Serial clock output | Propagates synchronized clock to next device; used with SOUT for readback |
| FB | DC/DC feedback input | Connects only to last device in chain to enable AHVC and simplify layout |
| OUT0–OUT15 | Constant-current LED sinks | 16 high-side referenced current outputs; each drives one local dimming zone |
| INT | Interrupt output | Active-low signal indicating LOD/LSD/TSD fault events when UART mode disabled |
| R1, R2 | Reference resistor inputs | Set global current scale via external precision resistors (R1 = IOUT scaling, R2 = internal bias) |
Key Features
| Feature | Design Value |
|---|---|
| AEC-Q100 Grade 1 qualification | Validated for –40°C to +125°C ambient operation - meets automotive cabin and cluster display thermal requirements |
| Functional safety documentation | TI-provided FIT data, FMEA reports, and safety analysis aids - accelerates ISO 26262 ASIL-B system integration |
| Adaptive Headroom Voltage Control (AHVC) | Reduces DC/DC overhead voltage in real time - cuts power loss by up to 30% vs fixed-headroom designs |
| Programmable EMI reduction | Four integrated phase-shifting schemes and adjustable drive strength - lowers radiated emissions without external filters |
| Per-zone diagnostics | Independent LED open/short detection per channel plus thermal shutdown - enables fail-safe display degradation handling |
Applications
| Automotive Central Infotainment Display | Automotive Digital Cluster Display |
|---|---|
Use Scenario: High-resolution LCD panel with 512+ local dimming zones for glare-free navigation and media UI under variable ambient light. IC Role / Device Role / Timing Role: Primary 16-channel constant-current sink driver managing backlight intensity per zone in real time via daisy-chained configuration. Use Value: Enables >100,000:1 contrast ratio and eliminates blooming around bright HUD elements through precise per-zone current regulation. |
Use Scenario: Compact TFT-LCD instrument cluster with dynamic warning overlays and night/day mode transitions. IC Role / Device Role / Timing Role: Local dimming controller synchronizing with CAN bus-triggered display updates and vehicle lighting state changes. Use Value: Delivers flicker-free dimming transitions and black insertion during rapid gauge sweeps - critical for driver attention retention. |
| Automotive Heads-Up Display (HUD) | Advanced Driver Assistance System (ADAS) Display |
Use Scenario: Projection-based HUD requiring ultra-low latency backlight modulation to match moving AR graphics. IC Role / Device Role / Timing Role: Low-latency LED driver supporting VRR and black insertion to suppress motion blur during high-speed vehicle maneuvers. Use Value: Achieves <1ms brightness update latency - prevents ghosting of critical speed or lane-departure alerts. |
Use Scenario: Safety-critical ADAS display overlaying camera feed with collision warnings and path prediction. IC Role / Device Role / Timing Role: Fault-tolerant backlight driver with UART-based diagnostic reporting to domain controller for ASIL-B compliance. Use Value: Provides continuous LED health monitoring and thermal derating - satisfies ISO 26262 diagnostic coverage requirements. |
Equivalent & Alternatives
The following parts are listed as comparable options for similar 16-channel automotive LED driver applications.
| Alternative Part | Technical Difference | Application Difference | Selection Advice |
|---|---|---|---|
| TLC69611QRTWRQ1 | 60mA per channel (vs. 30mA), same 20V compliance and pinout | Supports higher-brightness LED strings or fewer parallel strings per channel | Select when higher per-channel current is needed without changing PCB layout or firmware interface |
| TLC69651QRTWRQ1 | 30mA per channel with 50V output compliance (vs. 20V), identical digital interface | Enables longer LED strings or higher-Vf LEDs in extended-temperature or high-reliability zones | Choose for designs requiring >20V headroom - e.g., multi-chip white LED arrays or UV-enhanced backlighting |
Compared with TLC69601QRTWRQ1, TLC69611QRTWRQ1 offers double current drive for brighter zones, while TLC69651QRTWRQ1 extends voltage headroom to 50V for longer LED strings - both retain identical WQFN-24 packaging, daisy-chain protocol, and diagnostic architecture.
Availability
TLC69601QRTWRQ1 is available at Aetrix Electronics and suitable for automotive central infotainment displays, digital instrument clusters, and heads-up displays requiring stable component supply, AEC-Q100 compliance, and long-term lifecycle support.
Supply support for TLC69601QRTWRQ1 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-grade power management solutions, with over 50 years of innovation in high-reliability electronics.
The TLC696x1-Q1 product line was designed specifically for automotive LCD local dimming applications, emphasizing functional safety readiness, thermal robustness, and scalable daisy-chain architecture for next-generation cockpit displays.
FAQ
What is the maximum operating temperature range for the TLC69601QRTWRQ1?
The TLC69601QRTWRQ1 is qualified to AEC-Q100 Grade 1 specifications, supporting continuous operation from –40°C to +125°C ambient temperature. This rating applies to the full device functionality including current regulation, daisy-chain communication, and diagnostic reporting - validated across process corners and voltage extremes per TI's production test flow.
Does the TLC69601QRTWRQ1 support daisy-chain topology with other TLC696x1-Q1 variants?
Yes, the TLC69601QRTWRQ1 supports seamless daisy-chain interoperability with all TLC696x1-Q1 family members (e.g., TLC69611QRTWRQ1, TLC69651QRTWRQ1) using the same two-wire serial interface. All variants share identical command structure, register map, and timing - enabling mixed-channel configurations within a single chain.
How does Adaptive Headroom Voltage Control (AHVC) reduce system power consumption in the TLC69601QRTWRQ1?
AHVC in the TLC69601QRTWRQ1 dynamically adjusts the DC/DC converter output voltage based on real-time LED forward voltage requirements across all 16 channels. By minimizing excess headroom - rather than using a fixed worst-case voltage - it reduces conduction losses in both the DC/DC stage and the TLC69601QRTWRQ1's internal pass transistors, cutting total system power by up to 30%.
What diagnostic capabilities does the TLC69601QRTWRQ1 provide for LED fault detection?
The TLC69601QRTWRQ1 provides per-channel LED open detection (LOD), LED short detection (LSD), and global thermal shutdown detection (TSD). These flags are reported either via dedicated INT pin assertion or through UART/INT or SOUT/CLK_O readback - configurable via internal registers to match system-level fault-handling architecture.
Is the TLC69601QRTWRQ1 pin-compatible with the HTSSOP-28 variant TLC69601QPWPRQ1?
No, the TLC69601QRTWRQ1 (WQFN-24) is not pin-compatible with the TLC69601QPWPRQ1 (HTSSOP-28). They differ in package type, pin count, pin assignment, and thermal pad configuration. Migration requires PCB redesign and layout validation - though register-level firmware and daisy-chain protocol remain identical between both variants.
TLC69601QRTWRQ1 Specifications
- Product attributes
- Attribute value
- Manufacturer:
- Texas Instruments
- Series:
- -
- Package/Case:
- 24-WFQFN Exposed Pad
- Packaging:
- Tape & Reel (TR)
- Product Status:
- Active
- Type:
- Linear
- Topology:
- Constant Current
- Internal Switch(s):
- No
- Number of Outputs:
- 16
- Voltage - Supply (Min):
- 3V
- Voltage - Supply (Max):
- 5.5V
- Voltage - Output:
- 20V
- 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, Wettable Flank
- Supplier Device Package:
- 24-WQFN (4x4)
TLC69601QRTWRQ1 FAQ
1.How can I place an order for TLC69601QRTWRQ1 through Aetrix?
Please submit a Request for Quotation (RFQ) for TLC69601QRTWRQ1 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 TLC69601QRTWRQ1 reliable?
The price and inventory of TLC69601QRTWRQ1 are updated periodically and may fluctuate due to market conditions. Stock and pricing data are typically refreshed every 24 hours. Quotation validity for TLC69601QRTWRQ1 is usually 5 days.
3.What payment methods are accepted for TLC69601QRTWRQ1?
We accept Wire Transfer, PayPal, Credit Card, Western Union, MoneyGram, and Escrow for TLC69601QRTWRQ1 transactions.
Note: Certain payment methods may incur a processing fee.
4.How is shipping managed for TLC69601QRTWRQ1?
TLC69601QRTWRQ1 orders can be shipped via leading logistics carriers, including DHL, UPS, FedEx, TNT, or Registered Mail.
Once your TLC69601QRTWRQ1 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 TLC69601QRTWRQ1?
For technical support, including TLC69601QRTWRQ1 datasheets, pinout diagrams, or application guidance, please contact our engineering support team. They can provide detailed documentation and assistance for your TLC69601QRTWRQ1 requirements.
6.How does Aetrix verify that TLC69601QRTWRQ1 is sourced from the original manufacturer or authorized distributors?
All TLC69601QRTWRQ1 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 TLC69601QRTWRQ1 meets industry standards.
7.What is the process for return or replacement of TLC69601QRTWRQ1?
All TLC69601QRTWRQ1 units undergo pre-shipment inspection (PSI). If there is an issue with TLC69601QRTWRQ1, 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 TLC69601QRTWRQ1 part is unused and in its original packaging.
Return procedure for TLC69601QRTWRQ1:
1.Submit a request within 90 days.
2.Obtain a Return Material Authorization (RMA) from Aetrix.
TLC69601QRTWRQ1 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
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