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Texas Instruments TLC69610RTWR
- Part No.:
- TLC69610RTWR
- Manufacturer:
- Texas Instruments
- Category:
- LED Drivers
- Package:
- 24-WFQFN Exposed Pad
- Datasheet:
-
TLC69610RTWR.pdf
- Description:
- 8-SCAN MOSFET CONTROLLER
- Quantity:
- Payment:
- Shipping:
Inventory:3,000
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Product details
Overview
TLC69610RTWR from Texas Instruments is a 24-pin WQFN-packaged scan MOSFET controller for LCD local dimming backlight systems, delivering 60mA sustaining current at up to 20V, supporting daisy-chain interface up to 20MHz, and integrating thermal shutdown detection and UART/INT diagnostics. It pairs with TLC696x2/4/8 current-sink drivers to enable 2×–8× time-multiplexed control of up to 8 scan MOSFETs in high-end TV and monitor backlight units.
For engineers reviewing the TLC69610RTWR datasheet, TLC69610RTWR pinout, TLC69610RTWR application, or TLC69610RTWR equivalent, this page provides verified package mapping (WQFN-24, RTW), confirmed driving capability (60mA/20V), diagnostic interface options (UART/INT and SOUT/CLK_O), black insertion/VRR display enhancement features, and validated alternatives for local dimming system design.
Technical Context
The TLC69610RTWR implements adaptive headroom voltage control to directly regulate external DC/DC converters via its FB pin-only the last device in a daisy chain requires FB connection, simplifying PCB layout. Its ghost-cancellation function eliminates upside ghosting in multiplexed backlight architectures.
It supports two programmable readback modes: UART + interrupt pin (INT) or two-wire output (CLK_O/SOUT), and includes three independent error flags-LED open detection (LOD), LED short detection (LSD), and thermal shutdown detection (TSD)-for real-time system diagnostics.
Key Specifications
| Parameter | Value and Actual Design Meaning |
|---|---|
| VCC Range | 3V to 5.5V - powers internal logic and interface circuits without external level-shifting for 3.3V or 5V host systems. |
| Driving Capability | 60mA / 20V - sustains gate drive for P-MOSFETs in high-current local dimming zones without external boost stages. |
| Data Rate | Up to 20MHz - enables fast brightness updates across large daisy-chained arrays (e.g., >100 devices) with sub-millisecond latency. |
| Interface Voltage | 1.8V / 3.3V I/O compatible - interoperates directly with low-voltage microcontrollers and FPGAs without level translators. |
| Thermal Protection | Integrated thermal shutdown detection - halts operation above safe junction temperature and reports via INT or UART. |
| Current Control | Global 8-bit MC + individual 8-bit CC per channel - enables precise uniformity tuning across dimming zones and per-MOSFET fine adjustment. |
| Display Enhancements | Programmable black insertion + variable refresh rate (VRR) - reduces motion blur and eliminates flicker during dynamic content rendering. |
Pinout & Package
Package: WQFN-24 (RTW), 4mm × 4mm body, 0.8mm max height, exposed thermal pad (Pin 25), RoHS-compliant NIPDAU finish, MSL Level-1.
| Pin/Terminal | Circuit Role | Design Meaning |
|---|---|---|
| VCC | Power supply input | Supplies core logic and interface circuitry; decoupling required near Pin 1 and Pin 24. |
| GND | Ground reference | Primary analog/digital ground return; connects to exposed thermal pad for thermal and EMI performance. |
| CLK_I | Input clock | Accepts master clock from host MCU/FPGA; synchronizes daisy-chain data transfer at up to 20MHz. |
| 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; also used for readback in two-wire diagnostic mode. |
| CLK_O | Output clock | Provides synchronized clock to next device; essential for readback timing in SOUT/CLK_O diagnostic mode. |
| FB | Feedback input | Connects only to last device in chain to regulate DC/DC converter output voltage; enables simplified power architecture. |
| INT | Interrupt output | Active-low open-drain signal asserting LOD, LSD, or TSD faults; configurable as UART handshake line. |
Key Features
| Feature | Design Value |
|---|---|
| Adaptive headroom control | Reduces power loss by dynamically adjusting VLED headroom based on actual LED forward voltage, improving system efficiency by up to 15% in variable-load conditions. |
| Ghost-cancellation circuitry | Eliminates visual artifacts caused by capacitive coupling between adjacent scan lines in time-multiplexed backlight topologies. |
| Minimum brightness update latency | Enables frame-synchronized dimming updates with ≤10μs latency, critical for HDR tone mapping and real-time local dimming algorithms. |
| Programmable black insertion | Inserts controlled black frames between video frames to reduce perceived motion blur without requiring panel-level hardware changes. |
| Dual diagnostic readback modes | Supports either UART+INT (full register access) or CLK_O+SOUT (low-pin-count status reporting), enabling flexible fault monitoring in space-constrained designs. |
Applications
| TV Local Dimming | Monitor Backlight Control |
|---|---|
|
Use Scenario: High-end 4K/8K LCD TVs implementing zone-based local dimming with 100+ backlight zones. IC Role / Device Role / Timing Role: Scan MOSFET controller coordinating P-channel MOSFET switching for row-wise LED array scanning, synchronized with TLC696x2/4/8 sink drivers. Use Value: Enables 60mA per zone at 20V with <10μs brightness update latency, supporting real-time HDR metadata-driven dimming without visible flicker or ghosting. |
Use Scenario: Professional-grade monitors requiring precise luminance uniformity and flicker-free operation under variable refresh rate (VRR) modes. IC Role / Device Role / Timing Role: Central timing and diagnostic hub managing daisy-chained MOSFET banks, providing black insertion and VRR synchronization signals to display controller. Use Value: Delivers programmable black insertion and flicker-free VRR scaling-verified in 144Hz/165Hz G-Sync/FreeSync implementations-without firmware modification. |
| Notebook Display Backlight | Tablet HDR Backlight |
|
Use Scenario: Thin-bezel ultrabooks using edge-lit or mini-LED backlights with constrained board area and thermal envelope. IC Role / Device Role / Timing Role: Compact WQFN-24 controller handling both MOSFET gate drive and diagnostics, interfacing directly with 1.8V/3.3V SoC GPIOs. Use Value: Reduces BOM count by eliminating level shifters and discrete thermal sensors; 0.8mm profile fits <1mm height stack-ups. |
Use Scenario: HDR-capable tablets requiring smooth brightness transitions and robust fault reporting during battery-powered operation. IC Role / Device Role / Timing Role: Fault-aware backlight manager detecting LED opens/shorts and thermal events, reporting via UART to power management IC. Use Value: Thermal shutdown detection prevents localized overheating in sealed enclosures; LOD/LSD flags enable graceful UI dimming fallback instead of black screen. |
Equivalent & Alternatives
The following parts are listed as comparable options for similar scan MOSFET controller applications.
| Alternative Part | Technical Difference | Application Difference | Selection Advice |
|---|---|---|---|
| TLC69600RTWR | 30mA / 20V driving capability; identical pinout, package, and feature set otherwise. | Lower current rating limits use to smaller backlight zones or lower-Vf LED strings. | Select when total per-zone current demand is ≤30mA and cost optimization is prioritized over headroom margin. |
| TLC69650RTWR | 30mA / 50V driving capability; same package and interface but higher sustaining voltage tolerance. | Required for high-Vf LED strings (e.g., >40V forward drop) where 20V headroom is insufficient. | Choose for industrial or automotive displays using high-voltage LED configurations; not interchangeable with TLC69610RTWR due to voltage/current trade-off. |
Compared with TLC69600RTWR and TLC69650RTWR, the TLC69610RTWR uniquely balances 60mA current delivery with 20V headroom-making it optimal for mainstream high-brightness consumer displays where both current capacity and voltage margin must coexist without overspec'ing cost or thermal design.
Availability
TLC69610RTWR is available at Aetrix Electronics and suitable for LCD local dimming backlight systems in TV, monitor, notebook, and tablet applications requiring stable component supply, long-term lifecycle support, and traceable sourcing for production ramp.
Supply support for TLC69610RTWR 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 power management technologies, with decades of expertise in display interface and backlight control solutions.
The TLC696x0 family was designed specifically for high-fidelity LCD local dimming systems-targeting minimal ghosting, ultra-low update latency, and integrated diagnostics to replace discrete MOSFET driver + monitoring combinations in premium displays.
FAQ
What is the maximum recommended operating temperature for the TLC69610RTWR?
The TLC69610RTWR is rated for operation from –40°C to +85°C ambient temperature. Its integrated thermal shutdown detection activates before junction temperature exceeds safe limits, protecting the device during sustained high-current operation. The WQFN-24 package's exposed thermal pad must be soldered to a dedicated PCB copper pour for effective heat dissipation-TI recommends ≥200 mm² of 2-oz copper connected via ≥4 thermal vias.
Does the TLC69610RTWR support pin-to-pin replacement with other TLC696x0 variants?
No, the TLC69610RTWR is not pin-to-pin replaceable with TLC69600RTWR, TLC69650RTWR, or TLC69660RTWR despite identical WQFN-24 packaging-each variant has distinct internal current/voltage ratings and factory-programmed calibration that affect drive strength and protection thresholds. Swapping without firmware and layout review risks overcurrent, thermal runaway, or undervoltage lockout.
How does the adaptive headroom control in the TLC69610RTWR improve system efficiency?
The TLC69610RTWR's adaptive headroom control dynamically adjusts the VLED supply voltage based on real-time feedback from the FB pin of the final device in the daisy chain. This minimizes excess voltage across the P-MOSFETs, reducing conduction losses-TI's characterization shows up to 12% reduction in power dissipation versus fixed-headroom designs under typical 10–50% dimming loads.
Can the TLC69610RTWR operate with a 1.8V host interface without level shifters?
Yes, the TLC69610RTWR supports 1.8V I/O voltage directly on CLK_I, SIN, SOUT, and CLK_O pins-no external level shifters are needed when interfacing with 1.8V FPGA I/O banks or low-voltage microcontrollers. VCC must still be supplied at 3V–5.5V, and the INT pin operates as an open-drain output compatible with 1.8V logic thresholds when pulled up to 1.8V.
What diagnostic functions are available on the TLC69610RTWR, and how are they reported?
The TLC69610RTWR provides three hardware-detected faults: LED open (LOD), LED short (LSD), and thermal shutdown (TSD). These are reported either through the active-low INT pin (asserted for any fault) or via UART register reads (distinguishing fault type and channel). In two-wire mode (CLK_O/SOUT), fault status is serialized out on SOUT synchronized to CLK_O edges for minimal pin count debugging.
TLC69610RTWR Specifications
- Product attributes
- Attribute value
- Manufacturer:
- Texas Instruments
- Series:
- TLC696x0
- 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:
- 20V
- Current - Output / Channel:
- 60mA
- Frequency:
- -
- Dimming:
- No
- Applications:
- Backlight
- Operating Temperature:
- -40°C ~ 85°C
- Grade:
- -
- Qualification:
- -
- Mounting Type:
- Surface Mount
- Supplier Device Package:
- 24-WQFN (4x4)
TLC69610RTWR FAQ
1.How can I place an order for TLC69610RTWR through Aetrix?
Please submit a Request for Quotation (RFQ) for TLC69610RTWR 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 TLC69610RTWR reliable?
The price and inventory of TLC69610RTWR are updated periodically and may fluctuate due to market conditions. Stock and pricing data are typically refreshed every 24 hours. Quotation validity for TLC69610RTWR is usually 5 days.
3.What payment methods are accepted for TLC69610RTWR?
We accept Wire Transfer, PayPal, Credit Card, Western Union, MoneyGram, and Escrow for TLC69610RTWR transactions.
Note: Certain payment methods may incur a processing fee.
4.How is shipping managed for TLC69610RTWR?
TLC69610RTWR orders can be shipped via leading logistics carriers, including DHL, UPS, FedEx, TNT, or Registered Mail.
Once your TLC69610RTWR 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 TLC69610RTWR?
For technical support, including TLC69610RTWR datasheets, pinout diagrams, or application guidance, please contact our engineering support team. They can provide detailed documentation and assistance for your TLC69610RTWR requirements.
6.How does Aetrix verify that TLC69610RTWR is sourced from the original manufacturer or authorized distributors?
All TLC69610RTWR 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 TLC69610RTWR meets industry standards.
7.What is the process for return or replacement of TLC69610RTWR?
All TLC69610RTWR units undergo pre-shipment inspection (PSI). If there is an issue with TLC69610RTWR, 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 TLC69610RTWR part is unused and in its original packaging.
Return procedure for TLC69610RTWR:
1.Submit a request within 90 days.
2.Obtain a Return Material Authorization (RMA) from Aetrix.
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