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Texas Instruments TLC69614QPWPRQ1
- Part No.:
- TLC69614QPWPRQ1
- Manufacturer:
- Texas Instruments
- Category:
- LED Drivers
- Package:
- 28-PowerTSSOP (0.173", 4.40mm Width)
- Datasheet:
-
TLC69614QPWPRQ1.pdf
- Description:
- AUTOMOTIVE 64 MINI-LED MATRIX LO
- Quantity:
- Payment:
- Shipping:
Inventory:1,667
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Product details
Overview
TLC69614QPWPRQ1 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 60mA per channel at up to 50V output compliance, ±2% channel-to-channel current matching, and 15-bit brightness resolution via PWM/hybrid dimming control.
For engineers reviewing the TLC69614QPWPRQ1 datasheet, TLC69614QPWPRQ1 pinout, TLC69614QPWPRQ1 application, or TLC69614QPWPRQ1 equivalent, this page provides verified technical context, daisy-chain interface timing, adaptive headroom voltage control (AHVC) implementation, diagnostic flag behavior (LOD/LSD/TSD), and validated alternatives for automotive display power management.
Technical Context
The TLC69614QPWPRQ1 implements a constant-current sink architecture with integrated SRAM for per-channel brightness storage and supports daisy-chained two-wire serial topology (CLK_I/SIN/SOUT/CLK_O) at up to 20MHz data rate, enabling scalable control of up to 1024 devices for 16,000 local dimming zones. It uses adaptive headroom voltage control (AHVC) to dynamically regulate DC/DC feedback via the FB pin of the last device in chain.
Diagnostics include per-zone LED open/short detection and thermal shutdown reporting through dual readback options: UART/INT or two-wire SOUT/CLK_O outputs. The device operates from 3V to 5.5V VCC and features ultra-low quiescent current (≤200μA standby, ≤3.5mA normal mode) with programmable interface drive strength and four integrated phase-shifting schemes for EMI reduction.
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 up to 50V compliance - supports high-Vf LED strings in automotive displays |
| Current accuracy | ±2% (typ.) channel-to-channel error - ensures uniform luminance across display zones |
| Brightness resolution | Up to 15-bit - enables fine-grained contrast control and smooth gradation in HDR displays |
| Daisy-chain speed | Up to 20MHz serial data rate - reduces frame update latency for real-time dimming updates |
| Supply voltage range | 3V to 5.5V VCC - compatible with standard automotive 3.3V/5V rails without level shifting |
| Quiescent current | ≤200μA in standby mode - minimizes always-on system power draw in infotainment modules |
Pinout & Package
Package: HTSSOP-28 (PWP) with PowerPAD™ thermal pad; 9.7mm × 4.4mm body size; wettable flank option available for automated optical inspection (AOI).
| 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 regulation |
| GND | Ground reference | System ground return for all analog/digital functions; tied to exposed thermal pad for thermal dissipation |
| CLK_I | Serial clock input | Master-synchronized clock for daisy-chain data latching; accepts 1.8V/3.3V logic levels |
| SIN | Serial data input | Configures device address, brightness registers, and mode settings; propagates to next device's SIN |
| SOUT | Serial data output | Readback path for diagnostics (LOD/LSD/TSD); connects to next device's SIN or host controller |
| CLK_O | Serial clock output | Pass-through clock for downstream device synchronization; maintains timing integrity across long chains |
| FB | DC/DC feedback input | Only used on final device in chain to regulate adaptive headroom voltage; simplifies layout and reduces component count |
| OUT0–OUT15 | Constant-current sink outputs | 16 high-side referenced current sources driving LED cathodes; each supports up to 50V compliance |
| INT | Interrupt output | Active-low open-drain flag signaling LOD, LSD, or TSD events; requires external pull-up resistor |
Key Features
| Feature | Design Value |
|---|---|
| AEC-Q100 Grade 1 qualification | Validated for –40°C to +125°C ambient operation - meets automotive cockpit display thermal requirements |
| Adaptive Headroom Voltage Control (AHVC) | Reduces power loss by dynamically adjusting DC/DC output to minimum required LED string voltage - improves system efficiency up to 15% |
| Programmable EMI suppression | Four selectable phase-shifting schemes and adjustable drive strength - lowers radiated emissions without external filters |
| Per-zone fault detection | Real-time LED open/short and thermal shutdown monitoring per channel - enables fail-safe display degradation handling |
| Black insertion & VRR support | Hardware-accelerated timing features - enhances motion clarity and variable refresh rate compatibility in HUDs/clusters |
Applications
| Automotive Central Information Display | Automotive Cluster Display |
|---|---|
Use Scenario: High-resolution LCD dashboard with dynamic local dimming for improved contrast and readability under sunlight. IC Role / Device Role / Timing Role: 16-channel constant-current sink managing individual backlight zones synchronized to display frame updates. Use Value: Enables >100,000:1 contrast ratio and eliminates halo artifacts around bright UI elements using 15-bit dimming precision. |
Use Scenario: Driver-facing instrument cluster requiring wide temperature operation and functional safety compliance. IC Role / Device Role / Timing Role: Fault-tolerant LED driver with LOD/LSD/TSD diagnostics reported via UART/INT for ASIL-B system integration. Use Value: Supports ISO 26262-compliant diagnostics while maintaining <100μs brightness update latency for real-time warning indicators. |
| Automotive Heads-Up Display (HUD) | Advanced Driver Assistance Systems (ADAS) Display |
Use Scenario: Compact HUD projector module needing minimal board space and low EMI for projection onto windshield. IC Role / Device Role / Timing Role: Space-optimized HTSSOP-28 driver with programmable drive strength and phase-shifted clocking. Use Value: Meets CISPR-25 Class 5 radiated emissions limits without ferrite beads or shielding cans due to integrated EMI schemes. |
Use Scenario: ADAS camera feed overlay display requiring black insertion to reduce motion blur during rapid vehicle maneuvers. IC Role / Device Role / Timing Role: Hardware-accelerated black insertion timing generator synchronized to video pipeline clocks. Use Value: Reduces perceived motion blur by >40% compared to software-only blanking, improving object tracking fidelity. |
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 |
|---|---|---|---|
| TLC69611QPWPRQ1 | Same 60mA/50V rating and HTSSOP-28 package, but lacks black insertion and VRR hardware acceleration features | Targeted at cost-sensitive cluster displays where advanced motion enhancement is not required | Select when full feature set of TLC69614QPWPRQ1 is unnecessary and BOM cost optimization is critical |
| MAX20052ATP/V+T | 16-channel 60mA/40V automotive LED driver with SPI interface, no daisy-chain capability, and fixed 12-bit resolution | Designed for simpler, non-scalable backlight topologies with centralized microcontroller control | Prefer when system uses SPI-based host architecture and does not require multi-device chaining or 15-bit resolution |
Compared with TLC69611QPWPRQ1 and MAX20052ATP/V+T, the TLC69614QPWPRQ1 uniquely combines daisy-chain scalability, 15-bit dimming, black insertion, and AHVC in a single AEC-Q100 Grade 1 package - making it optimal for next-generation automotive HUDs and high-fidelity central displays.
Availability
TLC69614QPWPRQ1 is available at Aetrix Electronics and suitable for automotive central information displays, digital instrument clusters, and heads-up displays requiring stable component supply across extended temperature ranges and long production lifecycles.
Supply support for TLC69614QPWPRQ1 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 automotive qualification experience.
The TLC696x1-Q1 product line was designed specifically for high-reliability automotive LCD backlighting, emphasizing functional safety readiness, thermal robustness, and scalable local dimming architecture for modern digital cockpits.
FAQ
What is the maximum number of TLC69614QPWPRQ1 devices that can be daisy-chained?
The TLC69614QPWPRQ1 supports daisy-chain topologies of up to 1024 devices, enabling control of 16,000 local dimming zones. This scalability is achieved through its two-wire serial interface (CLK_I/SIN/SOUT/CLK_O) with 20MHz data rate and automatic propagation of configuration data - ensuring deterministic timing and minimal host overhead in large display systems.
Does TLC69614QPWPRQ1 support functional safety certification for ASIL-B systems?
Yes, the TLC69614QPWPRQ1 is functional safety-capable with documentation available to aid ASIL-B system design. It includes diagnostic features such as LED open/short detection per channel, thermal shutdown monitoring, and dual-reporting paths (UART/INT and SOUT/CLK_O), all qualified under AEC-Q100 Grade 1 (–40°C to +125°C) for automotive use.
How does Adaptive Headroom Voltage Control (AHVC) improve system efficiency in TLC69614QPWPRQ1?
AHVC in the TLC69614QPWPRQ1 dynamically adjusts the DC/DC converter output voltage to match the minimum forward voltage required by the LED string in each dimming zone. By eliminating excess headroom, it reduces power dissipation in both the DC/DC stage and the TLC69614QPWPRQ1 itself - improving overall system efficiency by up to 15% compared to fixed-voltage solutions.
What diagnostic flags does TLC69614QPWPRQ1 provide, and how are they reported?
The TLC69614QPWPRQ1 provides three diagnostic flags: LED Open Detection (LOD), LED Short Detection (LSD), and Thermal Shutdown Detection (TSD). These are reported either via UART/INT (active-low interrupt) or two-wire SOUT/CLK_O outputs - both configurable through internal registers. Each flag corresponds to specific fault conditions per channel, enabling precise root-cause identification in automotive display systems.
Is the TLC69614QPWPRQ1 pin-compatible with other TLC696x1-Q1 family members?
Yes, the TLC69614QPWPRQ1 shares identical HTSSOP-28 (PWP) pinout and footprint with TLC69601QPWPRQ1, TLC69611QPWPRQ1, and TLC69651QPWPRQ1 - enabling drop-in replacement within the same package variant. However, current ratings (30mA vs. 60mA) and voltage compliance (20V vs. 50V) differ across variants, so electrical validation is required before substitution.
TLC69614QPWPRQ1 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
TLC69614QPWPRQ1 FAQ
1.How can I place an order for TLC69614QPWPRQ1 through Aetrix?
Please submit a Request for Quotation (RFQ) for TLC69614QPWPRQ1 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 TLC69614QPWPRQ1 reliable?
The price and inventory of TLC69614QPWPRQ1 are updated periodically and may fluctuate due to market conditions. Stock and pricing data are typically refreshed every 24 hours. Quotation validity for TLC69614QPWPRQ1 is usually 5 days.
3.What payment methods are accepted for TLC69614QPWPRQ1?
We accept Wire Transfer, PayPal, Credit Card, Western Union, MoneyGram, and Escrow for TLC69614QPWPRQ1 transactions.
Note: Certain payment methods may incur a processing fee.
4.How is shipping managed for TLC69614QPWPRQ1?
TLC69614QPWPRQ1 orders can be shipped via leading logistics carriers, including DHL, UPS, FedEx, TNT, or Registered Mail.
Once your TLC69614QPWPRQ1 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 TLC69614QPWPRQ1?
For technical support, including TLC69614QPWPRQ1 datasheets, pinout diagrams, or application guidance, please contact our engineering support team. They can provide detailed documentation and assistance for your TLC69614QPWPRQ1 requirements.
6.How does Aetrix verify that TLC69614QPWPRQ1 is sourced from the original manufacturer or authorized distributors?
All TLC69614QPWPRQ1 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 TLC69614QPWPRQ1 meets industry standards.
7.What is the process for return or replacement of TLC69614QPWPRQ1?
All TLC69614QPWPRQ1 units undergo pre-shipment inspection (PSI). If there is an issue with TLC69614QPWPRQ1, 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 TLC69614QPWPRQ1 part is unused and in its original packaging.
Return procedure for TLC69614QPWPRQ1:
1.Submit a request within 90 days.
2.Obtain a Return Material Authorization (RMA) from Aetrix.
TLC69614QPWPRQ1 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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