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Texas Instruments TLC69664QPWPRQ1
- Part No.:
- TLC69664QPWPRQ1
- Manufacturer:
- Texas Instruments
- Category:
- LED Drivers
- Package:
- 28-PowerTSSOP (0.173", 4.40mm Width)
- Datasheet:
-
TLC69664QPWPRQ1.pdf
- Description:
- AUTOMOTIVE 64 MINI-LED MATRIX LO
- Quantity:
- Payment:
- Shipping:
Inventory:2,000
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Product details
Overview
TLC69664QPWPRQ1 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 constant-current sinks with 60mA/50V output capability, ±2% channel-to-channel current matching, and supports 4-time multiplexing. Used in central infotainment displays requiring precise per-zone brightness control and thermal-safe operation up to +125°C.
For engineers reviewing the TLC69664QPWPRQ1 datasheet, TLC69664QPWPRQ1 pinout, TLC69664QPWPRQ1 application, or TLC69664QPWPRQ1 equivalent, key selection criteria include its 60mA/50V sink rating, adaptive headroom voltage control (AHVC), UART/interrupt diagnostic reporting, and HTSSOP-28 daisy-chain interface compatibility with up to 1024 devices.
Technical Context
The TLC69664QPWPRQ1 implements a time-multiplexed 4-channel local dimming architecture, enabling dynamic zone control across high-resolution LCD backlights. Its integrated SRAM stores 15-bit brightness values per channel and supports hybrid PWM/global current control modes.
It features programmable interface drive strength and four integrated phase-shifting schemes to reduce EMI, while diagnostics include per-zone LED open/short detection and thermal shutdown reporting via UART/INT or CLK_O/SOUT outputs.
Key Specifications
| Parameter | Value and Actual Design Meaning |
|---|---|
| Output Current | 60mA per channel - enables driving higher-brightness LEDs or longer strings without external boosters |
| Output Voltage Compliance | 50V - supports multi-LED series strings in automotive display stacks |
| Current Matching | ±2% (channel-to-channel) - ensures uniform luminance across dimming zones |
| Brightness Resolution | Up to 15-bit - provides fine-grained contrast control for HDR-capable displays |
| Daisy-Chain Data Rate | Up to 20MHz - allows fast update of >32,000 zones across cascaded devices |
| Supply Voltage Range | 3V to 5.5V - compatible with standard automotive 3.3V or 5V rail systems |
| Quiescent Current | ≤3.5mA (normal mode); ≤200μA (standby) - minimizes system power in always-on display architectures |
Pinout & Package
Package: HTSSOP-28 (PWP), 9.7mm × 4.4mm body, PowerPAD™ thermally enhanced leadframe, wettable flank option available.
| Pin/Terminal | Circuit Role | Design Meaning |
|---|---|---|
| VCC | Power supply input | 3V–5.5V main supply for logic and output drivers; decoupling required near pin |
| GND | Ground reference | Analog/digital common return; connects to exposed thermal pad for thermal dissipation |
| CLK_I / CLK_O | Clock input/output | Enables synchronous daisy-chain timing; CLK_O drives next device's CLK_I |
| SIN / SOUT | Serial data in/out | Two-wire daisy-chain interface; SIN receives config/data, SOUT forwards to next device |
| FB | Feedback input | Connects only to last device's FB pin to regulate DC/DC converter headroom voltage |
| INT | Interrupt output | Active-low open-drain flag for LOD/LSD/TSD events; requires external pull-up |
| OUT0–OUT15 | Constant-current sinks | 16 high-side referenced outputs; each drives LED cathodes to GND |
Key Features
| Feature | Design Value |
|---|---|
| Adaptive Headroom Voltage Control (AHVC) | Directly regulates DC/DC feedback to minimize VLED overhead, reducing power loss and heat generation |
| Programmable EMI Reduction | Four selectable phase-shifting schemes and adjustable drive strength lower radiated emissions without external filters |
| Per-Zone Diagnostics | Detects open-circuit, short-circuit, and thermal shutdown per output channel with configurable reporting path |
| Black Insertion & VRR Support | Hardware-accelerated timing features improve motion clarity and reduce flicker in variable-refresh-rate displays |
| AEC-Q100 Grade 1 Qualification | Validated for –40°C to +125°C ambient operation with HBM ESD Level 2 and CDM Level C4B robustness |
Applications
| Automotive Central Infotainment Display | Automotive Digital Cluster Display |
|---|---|
Use Scenario: High-resolution TFT-LCD backlight with >1000 local dimming zones for glare-free navigation and media UI. IC Role / Device Role / Timing Role: Primary 4× multiplexed LED sink controller managing 16 zones per IC, synchronized via daisy-chained CLK_I/CLK_O. Use Value: Enables deep black levels and >10,000:1 contrast ratio using 60mA/50V output capability and 15-bit dimming resolution. | Use Scenario: Compact instrument cluster with segmented backlight zones for speedometer, tachometer, and warning indicators. IC Role / Device Role / Timing Role: Local dimming driver operating in hybrid PWM/current mode to maintain consistent color temperature across zones. Use Value: Achieves uniform luminance (±2% matching) and failsafe diagnostics (LOD/LSD/TSD) required for ASIL-B–aligned instrumentation. |
| Automotive Head-Up Display (HUD) | Advanced Driver Assistance Systems (ADAS) Display |
Use Scenario: Projection-based HUD requiring ultra-low latency brightness updates and minimal thermal drift. IC Role / Device Role / Timing Role: Time-multiplexed LED driver with minimum brightness update latency and AHVC for stable VLED regulation during rapid scene changes. Use Value: Reduces update latency and eliminates visible stepping artifacts during dynamic HUD content transitions. | Use Scenario: Safety-critical ADAS overlay display (e.g., lane departure, blind spot) with redundant backlight control. IC Role / Device Role / Timing Role: Functional safety-capable driver with UART/INT diagnostic reporting and thermal shutdown detection. Use Value: Supports ISO 26262 ASIL-B system-level fault detection through configurable error flagging and readback options. |
Equivalent & Alternatives
The following parts are listed as comparable options for similar LED driver applications.
| Alternative Part | Technical Difference | Application Difference | Selection Advice |
|---|---|---|---|
| TLC69664QRTWRQ1 | Same electrical specs; WQFN-24 package (4mm × 4mm), no exposed PowerPAD leadframe, Level-1 MSL rating | Better thermal performance in space-constrained layouts; requires different PCB land pattern and stencil design | Select when board area is limited and reflow profile supports Level-1 handling |
| TLC69662QPWPRQ1 | Identical HTSSOP-28 package but rated for 60mA/20V output (lower VCOMPL) | Suitable for shorter LED strings (<10 LEDs @ 2V) where 50V compliance is unnecessary | Choose for cost-sensitive designs with lower voltage backlight stacks and no need for extended string length support |
Compared with TLC69664QRTWRQ1 and TLC69662QPWPRQ1, the TLC69664QPWPRQ1 uniquely balances 50V compliance, thermal robustness via PowerPAD, and AEC-Q100-compliant packaging-making it optimal for high-string-count, thermally demanding automotive displays.
Availability
TLC69664QPWPRQ1 is available at Aetrix Electronics and suitable for automotive central infotainment displays, digital instrument clusters, and head-up displays requiring stable component supply, long-term lifecycle support, and AEC-Q100-compliant traceability.
Supply support for TLC69664QPWPRQ1 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 and embedded processing technologies, with leadership in automotive-grade power management and signal chain solutions.
The TLC696x-Q1 product line was engineered specifically for automotive LCD local dimming, integrating time-multiplexing, diagnostics, and EMI mitigation to meet stringent ASIL and thermal requirements in modern cockpit displays.
FAQ
What is the maximum LED string voltage supported by the TLC69664QPWPRQ1?
The TLC69664QPWPRQ1 supports up to 50V output compliance per channel, enabling driving of longer LED strings-typically up to 20–25 white LEDs (2.0V–2.2V VF each) in series-without external voltage boosting. This rating is confirmed in the device's absolute maximum ratings table and applies across the full –40°C to +125°C operating range.
Does the TLC69664QPWPRQ1 support daisy-chaining, and what is the maximum number of devices?
Yes, the TLC69664QPWPRQ1 supports daisy-chaining via its two-wire serial interface (CLK_I/CLK_O and SIN/SOUT). The architecture supports up to 1024 devices in a single chain, enabling control of more than 32,000 independent local dimming zones-critical for ultra-high-resolution automotive displays.
How does the Adaptive Headroom Voltage Control (AHVC) function in the TLC69664QPWPRQ1?
The AHVC feature in the TLC69664QPWPRQ1 dynamically adjusts the DC/DC converter's output voltage by monitoring the highest forward voltage among active LED strings and regulating headroom to ~0.5V above that value. Only the FB pin of the last device in the chain connects to the DC/DC feedback node, simplifying layout and minimizing power loss.
What diagnostic capabilities does the TLC69664QPWPRQ1 provide, and how are they reported?
The TLC69664QPWPRQ1 provides per-channel LED open detection (LOD), LED short detection (LSD), and device thermal shutdown detection (TSD). These flags can be reported either through the INT pin (active-low interrupt) or via UART register readback-configurable at startup-and do not require continuous polling.
Is the TLC69664QPWPRQ1 pin-compatible with other members of the TLC696x-Q1 family?
Yes, all HTSSOP-28 variants-including TLC69662QPWPRQ1, TLC69664QPWPRQ1, and TLC69668QPWPRQ1-share identical pinouts and footprint. Differences lie solely in output current/voltage ratings (e.g., 60mA/20V vs. 60mA/50V) and internal SRAM configuration, allowing drop-in replacement where electrical specs align with system requirements.
TLC69664QPWPRQ1 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:
- 60mA
- 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
TLC69664QPWPRQ1 FAQ
1.How can I place an order for TLC69664QPWPRQ1 through Aetrix?
Please submit a Request for Quotation (RFQ) for TLC69664QPWPRQ1 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 TLC69664QPWPRQ1 reliable?
The price and inventory of TLC69664QPWPRQ1 are updated periodically and may fluctuate due to market conditions. Stock and pricing data are typically refreshed every 24 hours. Quotation validity for TLC69664QPWPRQ1 is usually 5 days.
3.What payment methods are accepted for TLC69664QPWPRQ1?
We accept Wire Transfer, PayPal, Credit Card, Western Union, MoneyGram, and Escrow for TLC69664QPWPRQ1 transactions.
Note: Certain payment methods may incur a processing fee.
4.How is shipping managed for TLC69664QPWPRQ1?
TLC69664QPWPRQ1 orders can be shipped via leading logistics carriers, including DHL, UPS, FedEx, TNT, or Registered Mail.
Once your TLC69664QPWPRQ1 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 TLC69664QPWPRQ1?
For technical support, including TLC69664QPWPRQ1 datasheets, pinout diagrams, or application guidance, please contact our engineering support team. They can provide detailed documentation and assistance for your TLC69664QPWPRQ1 requirements.
6.How does Aetrix verify that TLC69664QPWPRQ1 is sourced from the original manufacturer or authorized distributors?
All TLC69664QPWPRQ1 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 TLC69664QPWPRQ1 meets industry standards.
7.What is the process for return or replacement of TLC69664QPWPRQ1?
All TLC69664QPWPRQ1 units undergo pre-shipment inspection (PSI). If there is an issue with TLC69664QPWPRQ1, 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 TLC69664QPWPRQ1 part is unused and in its original packaging.
Return procedure for TLC69664QPWPRQ1:
1.Submit a request within 90 days.
2.Obtain a Return Material Authorization (RMA) from Aetrix.
TLC69664QPWPRQ1 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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