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Texas Instruments TLC69612QPWPRQ1
- Part No.:
- TLC69612QPWPRQ1
- Manufacturer:
- Texas Instruments
- Category:
- LED Drivers
- Package:
- 28-PowerTSSOP (0.173", 4.40mm Width)
- Datasheet:
-
TLC69612QPWPRQ1.pdf
- Description:
- AUTOMOTIVE 32 MINI-LED MATRIX LO
- Quantity:
- Payment:
- Shipping:
Inventory:1,466
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Product details
Overview
TLC69612QPWPRQ1 from Texas Instruments is an AEC-Q100 Grade 1 (–40°C to +125°C) 16-channel automotive LED driver IC with constant-current sink outputs, adaptive headroom voltage control (AHVC), and daisy-chain interface for LCD local dimming backlight systems. It delivers 60mA per channel at up to 50V output compliance, ±2% channel-to-channel current matching, and supports 15-bit brightness resolution in hybrid PWM/control mode.
For engineers reviewing the TLC69612QPWPRQ1 datasheet, TLC69612QPWPRQ1 pinout, TLC69612QPWPRQ1 application, or TLC69612QPWPRQ1 equivalent, key selection criteria include its 28-pin HTSSOP package with PowerPAD™ thermal enhancement, UART/INT and SOUT/CLK_O diagnostic readback options, and functional safety documentation support for ASIL-B system integration.
Technical Context
The TLC69612QPWPRQ1 implements a daisy-chainable two-wire serial interface operating up to 20MHz, compatible with 1.8V/3.3V I/O levels, enabling scalable control of up to 1024 devices for 16,000 local dimming zones. Its AHVC scheme directly regulates external DC/DC converter feedback via a single FB pin from the last device in chain.
Diagnostics include per-channel LED open/short detection (LOD/LSD), thermal shutdown (TSD), and dual readback paths-programmable UART/INT or two-wire SOUT/CLK_O-supporting real-time fault reporting without interrupt latency penalties in safety-critical displays.
Key Specifications
| Parameter | Value and Actual Design Meaning |
|---|---|
| Output channels | 16 independent constant-current sinks for precise local dimming zone control |
| Max output current/voltage | 60mA per channel at 50V compliance - supports high-brightness LED strings in automotive HUDs and clusters |
| Current matching | ±2% (typ.) channel-to-channel error - ensures uniform luminance across display zones |
| Brightness resolution | Up to 15-bit - enables smooth grayscale transitions and eliminates visible contouring in dark scenes |
| Interface speed | Up to 20MHz daisy-chain data rate - reduces frame update latency for VRR and black insertion features |
| Supply voltage | 3V to 5.5V VCC - compatible with standard automotive 3.3V/5V rail architectures |
| Quiescent current | ≤3.5mA in normal mode; ≤200μA in standby - minimizes power loss during display sleep states |
Pinout & Package
Package: HTSSOP-28 (PWP) with exposed thermal pad (PowerPAD™), 9.7mm × 4.4mm body size, wettable flank option available. RoHS-compliant, NIPDAU lead finish, MSL Level-3 (260°C, 168hr).
| Pin/Terminal | Circuit Role | Design Meaning |
|---|---|---|
| VCC | Positive supply input | 3V–5.5V main power rail; decoupling required near pin for noise-sensitive analog current sinks |
| GND | Ground reference | Common return for all channels and logic; connects to thermal pad for thermal dissipation |
| OUT0–OUT15 | Constant-current sink outputs | 16 high-side referenced outputs driving LED cathodes; each rated for 60mA/50V max |
| CLK_I / CLK_O | Clock input/output | Enables synchronous daisy-chain timing; CLK_O drives next device's CLK_I in cascaded topology |
| SIN / SOUT | Data input/output | Serial data path for configuration and status readback; supports UART-style or two-wire diagnostic modes |
| FB | DC/DC feedback input | Single-point connection point for adaptive headroom control - only last device in chain uses this pin |
| INT | Interrupt output | Active-low open-drain flag signaling LOD, LSD, or TSD events - configurable per-zone masking |
Key Features
| Feature | Design Value |
|---|---|
| Adaptive Headroom Voltage Control (AHVC) | Reduces power loss by dynamically adjusting DC/DC output to match minimum required LED forward voltage across all active zones |
| Programmable EMI reduction | Four integrated phase-shifting schemes and adjustable drive strength minimize radiated emissions in sensitive automotive EMC environments |
| Diagnostic readback flexibility | UART/INT and SOUT/CLK_O dual-path reporting allows system designers to choose between low-latency interrupt-driven alerts or full register visibility |
| Black insertion & VRR support | Hardware-accelerated timing features improve motion clarity and reduce flicker in high-refresh-rate automotive displays |
| AEC-Q100 Grade 1 qualification | Validated for continuous operation from –40°C to +125°C ambient, meeting stringent automotive reliability and lifetime requirements |
Applications
| Automotive Central Information Display | Automotive Cluster Display |
|---|---|
Use Scenario: High-resolution TFT-LCD dashboard with dynamic local dimming for contrast enhancement and glare reduction under varying ambient light. IC Role / Device Role / Timing Role: TLC69612QPWPRQ1 acts as the primary 16-zone LED current controller, synchronizing with display timing controller via daisy-chain interface. Use Value: Enables >10,000:1 contrast ratio and eliminates halo artifacts around bright UI elements through precise per-zone current regulation. |
Use Scenario: Digital instrument cluster requiring wide temperature operation, fast boot-up, and ASIL-B compliant diagnostics. IC Role / Device Role / Timing Role: TLC69612QPWPRQ1 provides fault-aware backlight control with LOD/LSD/TSD reporting via INT pin to MCU safety monitor. Use Value: Meets ISO 26262 diagnostic coverage targets while maintaining <5ms brightness update latency for real-time warning indicators. |
| Automotive Heads-Up Display (HUD) | Advanced Driver Assistance System (ADAS) Display |
Use Scenario: Compact HUD projector module needing ultra-low EMI and minimal thermal footprint on PCB. IC Role / Device Role / Timing Role: TLC69612QPWPRQ1 serves as compact, thermally optimized LED driver with phase-shifted interface driving high-luminance micro-LED arrays. Use Value: Wettable flank HTSSOP package enables automated optical inspection (AOI); AHVC cuts thermal load by >30% vs fixed-headroom solutions. |
Use Scenario: ADAS camera feed overlay display requiring flicker-free rendering and fail-safe dimming behavior during sensor faults. IC Role / Device Role / Timing Role: TLC69612QPWPRQ1 operates in hybrid PWM/MC mode with black insertion to suppress motion blur during rapid scene changes. Use Value: 15-bit resolution prevents false-color banding in low-light night vision overlays; UART readback enables diagnostic logging for OTA updates. |
Equivalent & Alternatives
The following parts are listed as comparable options for similar automotive LED driver applications.
| Alternative Part | Technical Difference | Application Difference | Selection Advice |
|---|---|---|---|
| TLC69661QRTWRQ1 | Same 60mA/50V spec but in 24-pin WQFN (RTW) package; no PowerPAD™ thermal pad; MSL Level-1 vs Level-3 | Preferred for space-constrained layouts where thermal pad soldering is impractical; lower moisture sensitivity simplifies assembly | Select when board area is critical and thermal management relies on PCB copper rather than package-level conduction |
| TPS61196RGER | Single-channel 100mA boost LED driver with I²C interface; lacks daisy-chain, AHVC, or multi-zone diagnostics | Suitable for small-area indicator lighting, not scalable local dimming; no AEC-Q100 Grade 1 rating | Choose only for non-dimming auxiliary lighting; not a functional replacement for TLC69612QPWPRQ1's 16-zone architecture |
Compared with TLC69661QRTWRQ1, the TLC69612QPWPRQ1 offers superior thermal performance and automotive-grade moisture handling in HTSSOP; versus TPS61196RGER, it delivers full system-level local dimming capability with safety-certified diagnostics - neither alternative matches its integrated zone scalability and ASIL-B readiness.
Availability
TLC69612QPWPRQ1 is available at Aetrix Electronics and suitable for automotive central information displays, digital instrument clusters, and heads-up displays requiring stable component supply, long-term lifecycle support, and AEC-Q100-compliant manufacturing traceability.
Supply support for TLC69612QPWPRQ1 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 electronics, with decades of automotive qualification expertise and functional safety infrastructure.
The TLC696x1-Q1 product line was designed specifically for high-reliability automotive LCD backlighting, emphasizing scalable local dimming, diagnostic completeness, and seamless integration into ASIL-B display subsystems.
FAQ
What is the maximum number of TLC69612QPWPRQ1 devices that can be daisy-chained?
The TLC69612QPWPRQ1 supports daisy-chain topologies of up to 1024 devices, enabling control of 16,000 independent local dimming zones. This scalability is achieved through its high-speed 20MHz two-wire interface and dedicated CLK_O/SOUT outputs. Each TLC69612QPWPRQ1 retains full register access and diagnostic reporting capability regardless of position in the chain, making it ideal for large-format automotive displays requiring fine-grained luminance control.
Does TLC69612QPWPRQ1 support functional safety certification for ASIL-B systems?
Yes, the TLC69612QPWPRQ1 is functional safety-capable with documentation available to aid ASIL-B system design. It includes integrated diagnostics such as per-channel LED open/short detection, thermal shutdown monitoring, and dual-reporting paths (UART/INT and SOUT/CLK_O). These features enable systematic fault coverage in accordance with ISO 26262, though final system-level certification remains the responsibility of the end equipment integrator.
How does Adaptive Headroom Voltage Control (AHVC) improve efficiency in TLC69612QPWPRQ1-based designs?
AHVC in the TLC69612QPWPRQ1 dynamically adjusts the external DC/DC converter's output voltage to match the highest forward voltage among all active LED strings, minimizing excess voltage drop across the current sinks. This reduces power dissipation by up to 40% compared to fixed-headroom architectures. Only the last device in the daisy chain requires FB pin connection, simplifying layout and eliminating redundant feedback routing.
What are the thermal management requirements for TLC69612QPWPRQ1 in HTSSOP-28 package?
The TLC69612QPWPRQ1 in HTSSOP-28 (PWP) package requires soldering of its exposed PowerPAD™ thermal pad to a dedicated PCB copper plane for effective heat dissipation. TI recommends using ≥4 thermal vias (0.3mm diameter, filled/plugged) beneath the pad connected to internal ground or power planes. Board layout must follow SLMA002/SLMA004 guidelines; junction-to-board thermal resistance is 22°C/W when properly implemented, supporting continuous 60mA/channel operation at +125°C ambient.
Can TLC69612QPWPRQ1 operate with 1.8V logic-level microcontrollers?
Yes, the TLC69612QPWPRQ1's daisy-chain interface is explicitly rated for 1.8V/3.3V I/O compatibility. Its SIN, SOUT, CLK_I, and CLK_O pins accept 1.8V logic thresholds and drive 3.3V-compatible levels, enabling direct interfacing with low-voltage automotive MCUs without level-shifting circuitry. The internal logic core operates from VCC (3V–5.5V), ensuring robust signal integrity across voltage domains while maintaining timing compliance at 20MHz data rates.
TLC69612QPWPRQ1 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:
- 20V
- 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
TLC69612QPWPRQ1 FAQ
1.How can I place an order for TLC69612QPWPRQ1 through Aetrix?
Please submit a Request for Quotation (RFQ) for TLC69612QPWPRQ1 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 TLC69612QPWPRQ1 reliable?
The price and inventory of TLC69612QPWPRQ1 are updated periodically and may fluctuate due to market conditions. Stock and pricing data are typically refreshed every 24 hours. Quotation validity for TLC69612QPWPRQ1 is usually 5 days.
3.What payment methods are accepted for TLC69612QPWPRQ1?
We accept Wire Transfer, PayPal, Credit Card, Western Union, MoneyGram, and Escrow for TLC69612QPWPRQ1 transactions.
Note: Certain payment methods may incur a processing fee.
4.How is shipping managed for TLC69612QPWPRQ1?
TLC69612QPWPRQ1 orders can be shipped via leading logistics carriers, including DHL, UPS, FedEx, TNT, or Registered Mail.
Once your TLC69612QPWPRQ1 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 TLC69612QPWPRQ1?
For technical support, including TLC69612QPWPRQ1 datasheets, pinout diagrams, or application guidance, please contact our engineering support team. They can provide detailed documentation and assistance for your TLC69612QPWPRQ1 requirements.
6.How does Aetrix verify that TLC69612QPWPRQ1 is sourced from the original manufacturer or authorized distributors?
All TLC69612QPWPRQ1 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 TLC69612QPWPRQ1 meets industry standards.
7.What is the process for return or replacement of TLC69612QPWPRQ1?
All TLC69612QPWPRQ1 units undergo pre-shipment inspection (PSI). If there is an issue with TLC69612QPWPRQ1, 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 TLC69612QPWPRQ1 part is unused and in its original packaging.
Return procedure for TLC69612QPWPRQ1:
1.Submit a request within 90 days.
2.Obtain a Return Material Authorization (RMA) from Aetrix.
TLC69612QPWPRQ1 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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