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Texas Instruments TLC69660QRTWRQ1
- Part No.:
- TLC69660QRTWRQ1
- Manufacturer:
- Texas Instruments
- Category:
- LED Drivers
- Package:
- 24-WFQFN Exposed Pad
- Datasheet:
-
TLC69660QRTWRQ1.pdf
- Description:
- AUTOMOTIVE 8-SCAN MOSFET CONTROL
- Quantity:
- Payment:
- Shipping:
Inventory:2,510
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Product details
Overview
TLC69660QRTWRQ1 from Texas Instruments is an AEC-Q100 Grade 1 automotive scan MOSFET controller designed for local dimming backlight systems, delivering 60mA per channel at up to 50V, supporting daisy-chained configurations of up to 1024 devices, and featuring UART/INT and SOUT/CLK_O diagnostic readback for LCD central information displays.
For engineers reviewing the TLC69660QRTWRQ1 datasheet, TLC69660QRTWRQ1 pinout, TLC69660QRTWRQ1 application, or TLC69660QRTWRQ1 equivalent, this device serves as a high-channel-count, fault-aware P-MOSFET gate driver optimized for automotive display power management with adaptive headroom control and ghost-cancellation functionality.
Technical Context
The TLC69660QRTWRQ1 implements a time-multiplexed scan architecture compatible with current-sink drivers TLC696x2/4/8-Q1, integrating 16 constant-current sinks to control up to 8 scan MOSFETs per device. It supports full-array local dimming via cascaded daisy-chain topology with programmable interface drive strength for EMI reduction.
Its diagnostic system includes LED open (LOD), LED short (LSD), and thermal shutdown (TSD) detection, with two configurable readback modes: UART + interrupt pin (INT) or two-wire serial output (SOUT/CLK_O). Adaptive headroom voltage control directly interfaces with DC/DC converters via a single FB pin from the last device in chain.
Key Specifications
| Parameter | Value and Actual Design Meaning |
|---|---|
| Channel current / voltage | 60mA per channel at up to 50V - enables direct driving of high-side P-MOSFETs in automotive LCD backlight strings. |
| Operating VCC range | 3V to 5.5V - compatible with standard automotive 3.3V and 5V supply rails without level-shifting. |
| Data transfer rate | Up to 20MHz - supports fast configuration and real-time brightness updates across large daisy chains. |
| Temperature grade | AEC-Q100 Grade 1 (–40°C to +125°C ambient) - qualified for under-hood and instrument cluster environments. |
| Diagnostics | LOD, LSD, and TSD flags with dual readback (UART/INT or SOUT/CLK_O) - enables robust fault isolation in safety-critical displays. |
| Package | WQFN-24 with wettable flanks (4mm × 4mm) - supports automated optical inspection (AOI) and high-reliability solder joint formation. |
| ESD rating | HBM Level 2 (±2kV), CDM Level C4B (±1kV) - meets automotive board-level ESD immunity requirements. |
Pinout & Package
Package: WQFN-24 (RTW), 4mm × 4mm body with exposed thermal pad and wettable flank leads for enhanced solder joint reliability and thermal dissipation.
| Pin/Terminal | Circuit Role | Design Meaning |
|---|---|---|
| VCC | Supply input | Primary power rail (3V–5.5V); powers internal logic and gate drivers. |
| GND | Ground reference | Common return path for logic, analog, and power sections; connects to thermal pad. |
| CLK_I | Clock input | Accepts master clock signal (up to 20MHz) to synchronize daisy-chain data transfer. |
| SIN | Serial data input | Receives configuration and control data from upstream device or host controller. |
| SOUT | Serial data output | Drives downstream device in daisy chain; supports diagnostic readback in SOUT/CLK_O mode. |
| CLK_O | Clock output | Propagates synchronized clock to next device; used with SOUT for two-wire diagnostics. |
| FB | Feedback input | Connects only from last device in chain to DC/DC converter for adaptive headroom control. |
| INT | Interrupt output | Active-low open-drain flag indicating LOD, LSD, or TSD event; used with UART mode. |
Key Features
| Feature | Design Value |
|---|---|
| Ghost-cancellation function | Eliminates upside ghosting artifacts in time-multiplexed local dimming by synchronizing scan timing and current sink settling. |
| Adaptive headroom voltage control | Reduces power loss by dynamically adjusting VLED supply based on real-time channel current demand and forward voltage. |
| Programmable interface drive strength | Configurable slew rate and output strength on CLK_I/SIN/SOUT/CLK_O pins to suppress EMI in noisy automotive environments. |
| Minimum brightness update latency | Enables rapid frame-to-frame dimming transitions without visible flicker or lag in HUD and cluster displays. |
| Black insertion & VRR support | Improves motion clarity and reduces blur in high-refresh-rate automotive displays through precise timing-controlled blanking. |
Applications
| Automotive Central Information Display | Automotive Cluster Display |
|---|---|
|
Use Scenario: High-resolution infotainment screen requiring dynamic local dimming for contrast enhancement and power efficiency. IC Role / Device Role / Timing Role: Scan MOSFET controller managing P-MOSFET gate timing and current for 16-zone backlight segments. Use Value: Enables 1024-device cascading for ultra-high-resolution panels while maintaining sub-millisecond update latency and thermal fault reporting. |
Use Scenario: Digital instrument cluster with variable ambient lighting and safety-critical warning indicators. IC Role / Device Role / Timing Role: Fault-aware backlight driver coordinating with MCU to adjust dimming zones during speed or alert events. Use Value: Provides LOD/LSD/TSD diagnostics via UART/INT to meet ASIL-B functional safety requirements for driver information systems. |
| Automotive Head-Up Display (HUD) | Advanced Driver Assistance Systems (ADAS) Display |
|
Use Scenario: Compact HUD projector requiring high-brightness, low-latency backlight control with minimal thermal footprint. IC Role / Device Role / Timing Role: Time-multiplexed scan controller enabling black insertion and VRR for motion artifact suppression. Use Value: Delivers 60mA/50V channel drive in 4mm × 4mm WQFN package, supporting compact optical engine layouts with wettable flank AOI verification. |
Use Scenario: ADAS overlay display integrated into windshield or combiner with real-time camera feed alignment. IC Role / Device Role / Timing Role: Cascadable local dimming node synchronizing with image processing pipeline for pixel-accurate luminance mapping. Use Value: Supports daisy-chain synchronization across multiple TLC69660QRTWRQ1 units to maintain <1μs inter-device timing skew for seamless overlay rendering. |
Equivalent & Alternatives
The following parts are listed as comparable options for similar scan MOSFET controller applications.
| Alternative Part | Technical Difference | Application Difference | Selection Advice |
|---|---|---|---|
| TLC69650QRTWRQ1 | 30mA/50V channel drive vs. 60mA/50V; identical pinout, package, and feature set. | Suitable for lower-current backlight strings where thermal margin allows reduced MOSFET sizing. | Select when total channel current demand is ≤30mA and cost optimization is prioritized over maximum drive capability. |
| TLC69660QPWPRQ1 | Same electrical specs but HTSSOP-28 (9.7mm × 4.4mm) vs. WQFN-24 (4mm × 4mm); different thermal pad layout and MSL rating (Level-3 vs. Level-1). | Better suited for legacy PCBs with larger pitch constraints or where PowerPAD thermal mass is preferred over wettable flank AOI. | Choose for designs requiring higher thermal dissipation headroom or compatibility with existing HTSSOP footprints and reflow profiles. |
Compared with TLC69650QRTWRQ1 and TLC69660QPWPRQ1, the TLC69660QRTWRQ1 uniquely combines 60mA/50V drive capability with the smallest automotive-qualified footprint (4mm × 4mm WQFN) and Level-1 unlimited reflow rating-making it optimal for space-constrained, high-density HUD and cluster modules requiring zero reflow cycle restrictions.
Availability
TLC69660QRTWRQ1 is available at Aetrix Electronics and suitable for automotive central information displays, digital instrument clusters, and head-up displays requiring stable component supply, AEC-Q100 compliance, and long-term production continuity.
Supply support for TLC69660QRTWRQ1 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 decades of leadership in high-reliability power management and display interface solutions.
The TLC696x0-Q1 product line was engineered specifically for automotive LCD local dimming systems, emphasizing functional safety readiness, thermal resilience, and scalable daisy-chain architecture for next-generation cockpit displays.
FAQ
What is the maximum number of TLC69660QRTWRQ1 devices that can be daisy-chained?
The TLC69660QRTWRQ1 supports up to 1024 devices in a single daisy chain, enabled by its high-speed 20MHz serial interface and dedicated CLK_O/SOUT signaling. This scalability allows full-array local dimming control across ultra-high-resolution automotive displays without external multiplexing logic.
Does the TLC69660QRTWRQ1 require external current-setting resistors?
No, the TLC69660QRTWRQ1 does not require external current-setting resistors. It features both global 8-bit Maximum Current (MC) and individual 8-bit Channel Current (CC) registers, enabling precise digital current control per channel without discrete components.
How does the adaptive headroom voltage control work in the TLC69660QRTWRQ1?
The TLC69660QRTWRQ1 implements adaptive headroom control by monitoring channel current demand and LED forward voltage via its internal sensing, then dynamically adjusting the FB pin voltage to minimize VLED overhead. Only the FB pin of the last device in the chain connects to the DC/DC converter, simplifying layout and reducing component count.
What diagnostic flags does the TLC69660QRTWRQ1 provide, and how are they reported?
The TLC69660QRTWRQ1 provides three hardware-detected flags: LED Open Detection (LOD), LED Short Detection (LSD), and Thermal Shutdown Detection (TSD). These are reported either via UART + active-low INT pin or two-wire SOUT/CLK_O serial output, both programmable through internal registers.
Is the TLC69660QRTWRQ1 pin-compatible with other members of the TLC696x0-Q1 family?
Yes, the TLC69660QRTWRQ1 shares identical pinout and package (WQFN-24 RTW) with TLC69600QRTWRQ1, TLC69610QRTWRQ1, and TLC69650QRTWRQ1 - enabling drop-in replacement across variants differing only in channel current/voltage ratings and firmware configuration.
TLC69660QRTWRQ1 Specifications
- Product attributes
- Attribute value
- Manufacturer:
- Texas Instruments
- Series:
- -
- Package/Case:
- 24-WFQFN Exposed Pad
- Packaging:
- Tape & Reel (TR)
- Product Status:
- Active
- Type:
- DC DC Controller
- Topology:
- -
- Internal Switch(s):
- No
- Number of Outputs:
- 16
- Voltage - Supply (Min):
- 3V
- Voltage - Supply (Max):
- 5.5V
- Voltage - Output:
- 50V
- Current - Output / Channel:
- 60mA
- Frequency:
- -
- Dimming:
- Yes
- Applications:
- Backlight
- Operating Temperature:
- -40°C ~ 125°C (TJ)
- Grade:
- Automotive
- Qualification:
- AEC-Q100
- Mounting Type:
- Surface Mount, Wettable Flank
- Supplier Device Package:
- 24-WQFN (4x4)
TLC69660QRTWRQ1 FAQ
1.How can I place an order for TLC69660QRTWRQ1 through Aetrix?
Please submit a Request for Quotation (RFQ) for TLC69660QRTWRQ1 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 TLC69660QRTWRQ1 reliable?
The price and inventory of TLC69660QRTWRQ1 are updated periodically and may fluctuate due to market conditions. Stock and pricing data are typically refreshed every 24 hours. Quotation validity for TLC69660QRTWRQ1 is usually 5 days.
3.What payment methods are accepted for TLC69660QRTWRQ1?
We accept Wire Transfer, PayPal, Credit Card, Western Union, MoneyGram, and Escrow for TLC69660QRTWRQ1 transactions.
Note: Certain payment methods may incur a processing fee.
4.How is shipping managed for TLC69660QRTWRQ1?
TLC69660QRTWRQ1 orders can be shipped via leading logistics carriers, including DHL, UPS, FedEx, TNT, or Registered Mail.
Once your TLC69660QRTWRQ1 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 TLC69660QRTWRQ1?
For technical support, including TLC69660QRTWRQ1 datasheets, pinout diagrams, or application guidance, please contact our engineering support team. They can provide detailed documentation and assistance for your TLC69660QRTWRQ1 requirements.
6.How does Aetrix verify that TLC69660QRTWRQ1 is sourced from the original manufacturer or authorized distributors?
All TLC69660QRTWRQ1 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 TLC69660QRTWRQ1 meets industry standards.
7.What is the process for return or replacement of TLC69660QRTWRQ1?
All TLC69660QRTWRQ1 units undergo pre-shipment inspection (PSI). If there is an issue with TLC69660QRTWRQ1, 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 TLC69660QRTWRQ1 part is unused and in its original packaging.
Return procedure for TLC69660QRTWRQ1:
1.Submit a request within 90 days.
2.Obtain a Return Material Authorization (RMA) from Aetrix.
TLC69660QRTWRQ1 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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