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Texas Instruments TLC69662QPWPRQ1
- Part No.:
- TLC69662QPWPRQ1
- Manufacturer:
- Texas Instruments
- Category:
- LED Drivers
- Package:
- 28-PowerTSSOP (0.173", 4.40mm Width)
- Datasheet:
-
TLC69662QPWPRQ1.pdf
- Description:
- AUTOMOTIVE 32 MINI-LED MATRIX LO
- Quantity:
- Payment:
- Shipping:
Inventory:1,935
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Product details
Overview
TLC69662QPWPRQ1 from Texas Instruments is an AEC-Q100 Grade 1 automotive LED driver IC for local dimming backlight systems, integrating 16 high-precision constant-current sinks (60mA/50V), adaptive headroom voltage control (AHVC), and daisy-chain UART/INT diagnostics. It operates from 3V to 5.5V and supports 15-bit brightness resolution in automotive central display, cluster, and HUD applications.
For engineers reviewing the TLC69662QPWPRQ1 datasheet, TLC69662QPWPRQ1 pinout, TLC69662QPWPRQ1 application, or TLC69662QPWPRQ1 equivalent, key selection criteria include its 60mA/50V sink capability, ±2% channel-to-channel current matching, AHVC efficiency optimization, and diagnostic reporting via UART/INT or CLK_O/SOUT interfaces.
Technical Context
The TLC69662QPWPRQ1 implements time-multiplexed local dimming control with 2/4/8× scan support when paired with TLC696x0-Q1 scan MOSFET controllers. Its daisy-chain interface enables up to 1024 devices per chain for >32,000 zones, with programmable 4-phase EMI reduction and black insertion/VRR features.
Diagnostic architecture includes per-zone LED open/short detection (LOD/LSD) and thermal shutdown (TSD), with two configurable readback paths: UART + interrupt pin (INT) or two-wire serial output (CLK_O/SOUT). Adaptive headroom voltage control directly regulates external DC/DC via FB pin of last device in chain.
Key Specifications
| Parameter | Value and Actual Design Meaning |
|---|---|
| Output Current / Voltage | 60mA per channel up to 50V - enables driving high-Vf LED strings in automotive LCD backlights without external boost. |
| Current Matching | ±2% (typ.) channel-to-channel error - ensures uniform luminance across local dimming zones for high-contrast displays. |
| Brightness Resolution | Up to 15-bit PWM/hybrid dimming - supports fine-grained grayscale control and smooth transitions in HDR displays. |
| Daisy-Chain Speed | Up to 20MHz data rate - allows rapid update of thousands of zones with minimal latency in real-time video processing. |
| Supply Voltage Range | 3V to 5.5V VCC - compatible with standard automotive 3.3V/5V rail systems and robust against battery transients. |
| Quiescent Current | ≤200μA in standby mode - reduces system power draw during display sleep or low-brightness states. |
| AEC-Q100 Grade | Grade 1 (–40°C to +125°C TA) - qualified for under-hood and dashboard mounting locations in passenger vehicles. |
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 | Power supply input | 3V–5.5V main supply for logic and output drivers; decoupling required near pin. |
| GND | Ground reference | Common return for logic, analog, and output current sinks; connects to thermal pad for heat dissipation. |
| CLK_I | Input clock | Accepts master clock signal (up to 20MHz) for synchronous daisy-chain data transfer. |
| 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; used for diagnostic readback in SOUT/CLK_O mode. |
| CLK_O | Output clock | Propagates clock to next device; paired with SOUT for two-wire diagnostic reporting. |
| FB | Feedback input | Connects only to last device's FB pin to regulate external DC/DC converter output voltage dynamically. |
| INT | Interrupt output | Active-low open-drain flag signaling LOD, LSD, or TSD events; requires external pull-up. |
| OUT0–OUT15 | Constant-current sinks | 16 individually controlled outputs; each delivers up to 60mA into LED string cathodes. |
Key Features
| Feature | Design Value |
|---|---|
| Adaptive Headroom Voltage Control (AHVC) | Dynamically adjusts DC/DC output to minimize voltage overhead across all active LED strings, reducing power loss and heat generation. |
| Programmable EMI Reduction | Four selectable phase-shifting schemes and adjustable drive strength suppress radiated emissions without external filters. |
| Per-Zone Diagnostics | Detects open-circuit (LOD), short-circuit (LSD), and overtemperature (TSD) conditions on each of 16 channels with fault reporting options. |
| Ultra-Low Standby Power | ICC ≤ 200μA in standby - enables always-on display subsystems while meeting automotive quiescent current budgets. |
| Flexible Dimming Architecture | Global 8-bit maximum current setting plus per-channel 15-bit brightness control supports hybrid PWM/analog dimming for flicker-free operation. |
Applications
| Automotive Central Information Display | Automotive Cluster Display |
|---|---|
Use Scenario: High-resolution infotainment screen requiring dynamic contrast enhancement and HDR rendering in varying ambient light. IC Role / Device Role / Timing Role: Local dimming controller managing 16 independent backlight zones per IC, synchronized with video frame timing via daisy-chain clock. Use Value: Enables >10,000:1 contrast ratio and reduced power consumption versus global dimming, improving readability and energy efficiency. |
Use Scenario: Driver-facing instrument cluster with safety-critical warning indicators and variable brightness requirements. IC Role / Device Role / Timing Role: Precision current sink for segmented LED backlighting, supporting fast brightness updates during speed/tachometer transitions. Use Value: ±2% channel matching ensures consistent luminance across gauge segments, eliminating visual artifacts during rapid UI changes. |
| Automotive Head-Up Display (HUD) | Advanced Driver Assistance Systems (ADAS) Display |
Use Scenario: Projection-based HUD requiring ultra-low latency and high reliability in direct sunlight conditions. IC Role / Device Role / Timing Role: Backlight driver with black insertion and VRR support to synchronize LED dimming with projection refresh cycles. Use Value: Minimizes motion blur and ghosting by enabling sub-frame-level dimming updates, critical for accurate speed/distance overlays. |
Use Scenario: Safety-critical ADAS display overlaying camera feed with lane departure or collision warnings. IC Role / Device Role / Timing Role: Fault-tolerant local dimming controller with integrated LOD/LSD/TSD diagnostics reported via UART or INT pin. Use Value: Real-time fault detection meets ASIL-B functional safety requirements without external monitoring circuitry. |
Equivalent & Alternatives
The following parts are listed as comparable options for similar LED driver applications.
| Alternative Part | Technical Difference | Application Difference | Selection Advice |
|---|---|---|---|
| TLC69662QRTWRQ1 | Same electrical specs but WQFN-24 package (4mm × 4mm, wettable flank); no PowerPAD thermal pad. | Preferred for space-constrained PCB layouts where thermal vias are feasible; lower profile (0.8mm max height). | Select when board area is limited and thermal management can be achieved via PCB copper and vias instead of exposed pad soldering. |
| TLC69612QPWPRQ1 | Lower output capability: 60mA/20V vs. 60mA/50V; identical pinout and protocol. | Suitable for low-Vf LED strings (e.g., red/green-only clusters); not viable for high-Vf white/blue strings in HUDs. | Choose only if system Vf < 20V and cost sensitivity outweighs future-proofing for higher-Vf LEDs. |
Compared with TLC69662QRTWRQ1, the TLC69662QPWPRQ1 offers superior thermal performance via PowerPAD and higher mechanical robustness in vibration-prone automotive environments; versus TLC69612QPWPRQ1, it provides 2.5× higher compliance voltage essential for modern wide-color-gamut LED stacks.
Availability
TLC69662QPWPRQ1 is available at Aetrix Electronics and suitable for automotive central display, cluster display, and head-up display applications requiring stable component supply, AEC-Q100 qualification, and long-term production continuity.
Supply support for TLC69662QPWPRQ1 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 ICs, with decades of experience in high-reliability power management and display solutions.
The TLC696x2/4/8-Q1 product line was designed specifically for automotive LCD local dimming systems, delivering precision current control, functional safety support, and scalable daisy-chain architecture for next-generation digital cockpits.
FAQ
What is the maximum LED string voltage supported by the TLC69662QPWPRQ1?
The TLC69662QPWPRQ1 supports up to 50V compliance voltage per output channel, enabling direct drive of multi-LED white/blue strings common in automotive HUDs and high-brightness displays without external boost converters. This 50V rating is confirmed in the device family datasheet and applies specifically to the TLC69662QPWPRQ1 variant.
Does the TLC69662QPWPRQ1 require external components for thermal management?
Yes - the HTSSOP-28 package uses a PowerPAD thermal pad that must be soldered to a large PCB copper area with thermal vias for effective heat dissipation. The datasheet specifies minimum pad size and via count; omitting this compromises safe operation at full 60mA/channel load across temperature range.
How does the TLC69662QPWPRQ1 implement adaptive headroom voltage control (AHVC)?
The TLC69662QPWPRQ1 monitors LED string voltage drop and communicates required headroom to an external DC/DC converter via the FB pin of the last device in the daisy chain. This closed-loop control minimizes excess voltage across all active channels, reducing power loss and thermal stress in the LED driver itself.
Can the TLC69662QPWPRQ1 operate without a host microcontroller?
No - the TLC69662QPWPRQ1 requires external configuration via its daisy-chain interface (CLK_I/SIN) for initialization, brightness settings, and diagnostic enablement. It has no internal nonvolatile memory or autonomous operation mode; all control is host-driven.
What diagnostic reporting modes does the TLC69662QPWPRQ1 support?
The TLC69662QPWPRQ1 supports two configurable diagnostic reporting paths: UART + interrupt pin (INT) for detailed fault logging, or two-wire serial output (CLK_O/SOUT) for compact status readback. Mode selection is register-programmable and mutually exclusive per device.
TLC69662QPWPRQ1 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
TLC69662QPWPRQ1 FAQ
1.How can I place an order for TLC69662QPWPRQ1 through Aetrix?
Please submit a Request for Quotation (RFQ) for TLC69662QPWPRQ1 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 TLC69662QPWPRQ1 reliable?
The price and inventory of TLC69662QPWPRQ1 are updated periodically and may fluctuate due to market conditions. Stock and pricing data are typically refreshed every 24 hours. Quotation validity for TLC69662QPWPRQ1 is usually 5 days.
3.What payment methods are accepted for TLC69662QPWPRQ1?
We accept Wire Transfer, PayPal, Credit Card, Western Union, MoneyGram, and Escrow for TLC69662QPWPRQ1 transactions.
Note: Certain payment methods may incur a processing fee.
4.How is shipping managed for TLC69662QPWPRQ1?
TLC69662QPWPRQ1 orders can be shipped via leading logistics carriers, including DHL, UPS, FedEx, TNT, or Registered Mail.
Once your TLC69662QPWPRQ1 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 TLC69662QPWPRQ1?
For technical support, including TLC69662QPWPRQ1 datasheets, pinout diagrams, or application guidance, please contact our engineering support team. They can provide detailed documentation and assistance for your TLC69662QPWPRQ1 requirements.
6.How does Aetrix verify that TLC69662QPWPRQ1 is sourced from the original manufacturer or authorized distributors?
All TLC69662QPWPRQ1 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 TLC69662QPWPRQ1 meets industry standards.
7.What is the process for return or replacement of TLC69662QPWPRQ1?
All TLC69662QPWPRQ1 units undergo pre-shipment inspection (PSI). If there is an issue with TLC69662QPWPRQ1, 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 TLC69662QPWPRQ1 part is unused and in its original packaging.
Return procedure for TLC69662QPWPRQ1:
1.Submit a request within 90 days.
2.Obtain a Return Material Authorization (RMA) from Aetrix.
TLC69662QPWPRQ1 Tags
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BCR402RE6327HTSA1
Infineon Technologies
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BCR430UXTSA2
Infineon Technologies
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BCR420UE6433HTMA1
Infineon Technologies
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BCR420UE6327HTSA1
Infineon Technologies
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BCR421UE6327HTSA1
Infineon Technologies
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LYT1604D-TL
Power Integrations
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HV9910CLG-G
Microchip Technology
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CL2N8-G
Microchip Technology
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BCR420UW6-7
Diodes Incorporated
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BCR421UW6-7
Diodes Incorporated
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BCR420UFD-7
Diodes Incorporated
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BCR421UFD-7
Diodes Incorporated
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