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Texas Instruments TLC69602YBHR
- Part No.:
- TLC69602YBHR
- Manufacturer:
- Texas Instruments
- Category:
- LED Drivers
- Package:
- 24-BGA, DSBGA
- Datasheet:
-
TLC69602YBHR.pdf
- Description:
- 32 MINI-LED MATRIX LOCAL DIMMING
- Quantity:
- Payment:
- Shipping:
Inventory:3,000
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Product details
Overview
TLC69602YBHR from Texas Instruments is a 16-channel constant-current LED driver for LCD local dimming backlight systems, supporting 2-time multiplexing with 30mA per channel at up to 20V compliance voltage, ±2% device-to-device and channel-to-channel current matching, and adaptive headroom voltage control (AHVC) for DC/DC optimization in TV and monitor applications.
For engineers reviewing the TLC69602YBHR datasheet, TLC69602YBHR pinout, TLC69602YBHR application, or TLC69602YBHR equivalent, key selection criteria include its 24-ball DSBGA package (1.58mm × 2.43mm), 15-bit brightness resolution, UART/interrupt or two-wire (CLK_O/SOUT) diagnostic readback, and support for variable refresh rate (VRR) without flicker in high-end display systems.
Technical Context
The TLC69602YBHR implements time-multiplexed local dimming using integrated 16-channel constant-current sinks with SRAM-based brightness storage and daisy-chainable two-wire serial interface (CLK_I/SIN) operating up to 20MHz. It supports hybrid PWM/digital dimming control with global 8-bit maximum current setting and programmable black insertion.
Its diagnostics include per-zone LED open/short detection (LOD/LSD), thermal shutdown (TSD), and dual readback options-UART + INT pin or CLK_O/SOUT two-wire output-configured via internal registers. AHVC dynamically adjusts VLED headroom by feeding back only the FB signal from the last device in chain.
Key Specifications
| Parameter | Value and Actual Design Meaning |
|---|---|
| Output Channels | 16 constant-current sinks for independent LED zone control |
| Max Output Current / Voltage | 30mA per channel at up to 20V compliance (supports standard LED strings) |
| Current Matching Accuracy | ±2% device-to-device and channel-to-channel error (enables uniform dimming across zones) |
| Brightness Resolution | Up to 15-bit (32,768 levels) for fine-grained luminance control |
| Interface Speed | Up to 20MHz daisy-chain data transfer (reduces update latency for large arrays) |
| Power Consumption | ≤3.5mA in normal mode; ≤200μA in standby (low system-level power overhead) |
| Operating Voltage | VCC = 3V to 5.5V (compatible with standard logic supply rails) |
Pinout & Package
Package: 24-ball DSBGA (YBH), 1.58mm × 2.43mm body size, 0.4mm pitch, SNAGCU ball finish, MSL Level-1, -40°C to +85°C operating range.
| Pin/Terminal | Circuit Role | Design Meaning |
|---|---|---|
| VCC | Supply input | 3V–5.5V logic and bias rail for internal circuitry |
| GND | Ground reference | Common return path for all analog/digital functions and current sinks |
| CLK_I | Serial clock input | Master-synchronized timing signal for daisy-chain data latching |
| SIN | Serial data input | Receives configuration and brightness data from upstream device or host |
| SOUT | Serial data output | Drives downstream device in daisy chain; used for diagnostic readback |
| CLK_O | Serial clock output | Propagates synchronized clock to next device; enables two-wire readback |
| FB | Feedback input | Only connected on last device in chain to regulate DC/DC converter output |
| INT | Interrupt output | Active-low open-drain flag for LOD/LSD/TSD events (configurable via register) |
| OUT0–OUT15 | Constant-current outputs | 16 dedicated sink terminals driving LED cathodes in local dimming zones |
Key Features
| Feature | Design Value |
|---|---|
| Adaptive Headroom Voltage Control (AHVC) | Reduces VLED overhead by dynamically adjusting DC/DC output based on worst-case forward voltage across chained devices |
| Programmable Black Insertion | Inserts controlled black frames between refresh cycles to enhance contrast and reduce motion blur |
| Variable Refresh Rate (VRR) Support | Enables flicker-free operation during dynamic frame-rate changes in gaming and video playback |
| Minimum Brightness Update Latency | Optimized register access and pipeline architecture ensure sub-frame brightness updates for smooth transitions |
| Dual Diagnostic Readback | Selectable UART+INT or CLK_O+SOUT reporting paths simplify integration into host firmware or debug infrastructure |
Applications
| TV Local Dimming | Monitor Backlight Control |
|---|---|
Use Scenario: High-end 4K/8K LCD TVs requiring precise per-zone brightness control for HDR content rendering. IC Role / Device Role / Timing Role: Primary local dimming controller managing 16 LED zones per IC, cascaded to support >32,000 zones. Use Value: Enables >1,000,000:1 effective contrast ratio and eliminates blooming artifacts through real-time zone-specific current adjustment. | Use Scenario: Professional-grade monitors with wide color gamut and HDR certification demanding consistent luminance uniformity. IC Role / Device Role / Timing Role: Constant-current sink driver coordinating with scan MOSFET controller (TLC696x0) for 2× time-multiplexed backlight segmentation. Use Value: Delivers ±2% current matching across zones to maintain grayscale fidelity and prevent visible banding during gradient displays. |
| Notebook Display Backlight | Tablet Local Dimming System |
Use Scenario: Thin-bezel ultrabooks where space-constrained PCB layout requires minimal footprint and low thermal dissipation. IC Role / Device Role / Timing Role: Compact DSBGA-packaged LED driver enabling high-density local dimming in limited board area. Use Value: 1.58mm × 2.43mm YBH package reduces board area by >60% vs. comparable QFN solutions while maintaining full feature set. | Use Scenario: Premium tablets with always-on display and adaptive brightness requiring ultra-low standby power. IC Role / Device Role / Timing Role: Low-power backlight driver with ≤200μA standby current and fast wake-up for ambient light-triggered dimming updates. Use Value: Extends battery life during idle periods without compromising responsiveness when display content changes. |
Equivalent & Alternatives
The following parts are listed as comparable options for similar LED backlight driver applications.
| Alternative Part | Technical Difference | Application Difference | Selection Advice |
|---|---|---|---|
| TLC69602RTWR | Same electrical specs but in 4mm × 4mm WQFN-24 package with exposed thermal pad | Better thermal performance for higher ambient temperature or sustained full-brightness operation | Select when board layout allows larger footprint and thermal management prioritizes heat dissipation over miniaturization |
| TLC69604YBHR | Identical DSBGA-24 package and pinout, but supports 4-time multiplexing (vs. 2× for TLC69602YBHR) | Enables finer-grained local dimming zones per physical LED string, increasing dimming granularity | Choose when system architecture requires deeper time-multiplexing to reduce external MOSFET count or simplify LED wiring |
Compared with TLC69602RTWR and TLC69604YBHR, the TLC69602YBHR offers the smallest possible footprint for 2× multiplexed local dimming while retaining full diagnostic, VRR, and AHVC capabilities-ideal for space-constrained consumer displays where thermal load is moderate.
Availability
TLC69602YBHR is available at Aetrix Electronics and suitable for TV, monitor, and notebook backlight systems requiring stable component supply, high-precision current matching, and compact packaging for high-density PCB layouts.
Supply support for TLC69602YBHR 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 delivering analog and embedded processing solutions for industrial, automotive, personal electronics, and communications markets.
The TLC696x2/4/8 product line was designed specifically for high-performance LCD local dimming backlight systems, integrating precision current regulation, advanced diagnostics, and display-quality enhancements like VRR and black insertion.
FAQ
What is the maximum LED string voltage supported by the TLC69602YBHR?
The TLC69602YBHR supports up to 20V compliance voltage per output channel, enabling direct drive of typical 5–6 LED white strings (each ~3.2V VF) in series without external boost circuitry. This rating is confirmed in the official datasheet Section 1 (Features) and applies specifically to the TLC69602 variant family including TLC69602YBHR.
Does the TLC69602YBHR support daisy-chaining, and how many devices can be cascaded?
Yes, the TLC69602YBHR supports daisy-chaining via its two-wire serial interface (CLK_I/SIN inputs and CLK_O/SOUT outputs). The datasheet confirms support for up to 1024 devices in a single chain, enabling control of more than 32,000 local dimming zones - a capability explicitly stated for the TLC696x2/4/8 family including TLC69602YBHR.
How does the Adaptive Headroom Voltage Control (AHVC) function in the TLC69602YBHR?
The TLC69602YBHR implements AHVC by monitoring the required VLED headroom across the entire daisy chain and feeding back only the FB signal from the last device to the DC/DC converter. This eliminates overvoltage margin stacking, reducing power loss and heat generation - a feature documented in the TLC69602YBHR's functional description and simplified schematic.
What diagnostic functions are available on the TLC69602YBHR, and how are they reported?
The TLC69602YBHR provides LED open detection (LOD), LED short detection (LSD), and thermal shutdown detection (TSD). These are reported either via UART + interrupt pin (INT) or two-wire output (CLK_O/SOUT), both configurable through internal registers - details confirmed in the "Diagnostics" subsection of the datasheet's Features section.
Is the TLC69602YBHR pin-compatible with other variants in the TLC696x2/4/8 family?
Yes, all TLC696x2/4/8 variants-including TLC69602YBHR, TLC69604YBHR, and TLC69608YBHR-share identical 24-ball DSBGA (YBH) package dimensions, pin assignment, and mechanical footprint. This allows direct PCB reuse across multiplexing variants, as verified in TI's Package Option Addendum and Mechanical Drawings for YBH package.
TLC69602YBHR Specifications
- Product attributes
- Attribute value
- Manufacturer:
- Texas Instruments
- Series:
- TLC696x2
- Package/Case:
- 24-BGA, DSBGA
- Packaging:
- Tape & Reel (TR)
- Product Status:
- Active
- Type:
- Linear
- Topology:
- Constant Current
- Internal Switch(s):
- No
- Number of Outputs:
- 16
- Voltage - Supply (Min):
- 3V
- Voltage - Supply (Max):
- 5.5V
- Voltage - Output:
- 20V
- Current - Output / Channel:
- 30mA
- Frequency:
- -
- Dimming:
- PWM
- Applications:
- Backlight
- Operating Temperature:
- -40°C ~ 85°C
- Grade:
- -
- Qualification:
- -
- Mounting Type:
- Surface Mount
- Supplier Device Package:
- 24-DSBGA (1.58x2.43)
TLC69602YBHR FAQ
1.How can I place an order for TLC69602YBHR through Aetrix?
Please submit a Request for Quotation (RFQ) for TLC69602YBHR 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 TLC69602YBHR reliable?
The price and inventory of TLC69602YBHR are updated periodically and may fluctuate due to market conditions. Stock and pricing data are typically refreshed every 24 hours. Quotation validity for TLC69602YBHR is usually 5 days.
3.What payment methods are accepted for TLC69602YBHR?
We accept Wire Transfer, PayPal, Credit Card, Western Union, MoneyGram, and Escrow for TLC69602YBHR transactions.
Note: Certain payment methods may incur a processing fee.
4.How is shipping managed for TLC69602YBHR?
TLC69602YBHR orders can be shipped via leading logistics carriers, including DHL, UPS, FedEx, TNT, or Registered Mail.
Once your TLC69602YBHR 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 TLC69602YBHR?
For technical support, including TLC69602YBHR datasheets, pinout diagrams, or application guidance, please contact our engineering support team. They can provide detailed documentation and assistance for your TLC69602YBHR requirements.
6.How does Aetrix verify that TLC69602YBHR is sourced from the original manufacturer or authorized distributors?
All TLC69602YBHR 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 TLC69602YBHR meets industry standards.
7.What is the process for return or replacement of TLC69602YBHR?
All TLC69602YBHR units undergo pre-shipment inspection (PSI). If there is an issue with TLC69602YBHR, 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 TLC69602YBHR part is unused and in its original packaging.
Return procedure for TLC69602YBHR:
1.Submit a request within 90 days.
2.Obtain a Return Material Authorization (RMA) from Aetrix.
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