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Texas Instruments TLC69600YBHR
- Part No.:
- TLC69600YBHR
- Manufacturer:
- Texas Instruments
- Category:
- LED Drivers
- Package:
- 24-BGA, DSBGA
- Datasheet:
-
TLC69600YBHR.pdf
- Description:
- 8-SCAN MOSFET CONTROLLER
- Quantity:
- Payment:
- Shipping:
Inventory:3,000
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Product details
Overview
TLC69600YBHR from Texas Instruments is a 24-pin DSBGA scan MOSFET controller for LCD local dimming backlight systems, delivering 30mA maximum driving current at 20V sustaining voltage, global and individual 8-bit current control, and daisy-chain interface up to 20MHz for TV and monitor backlight drivers.
For engineers reviewing the TLC69600YBHR datasheet, TLC69600YBHR pinout, TLC69600YBHR application, or TLC69600YBHR equivalent, key selection criteria include its 30mA/20V P-MOSFET drive capability, ghost-cancellation function, adaptive headroom voltage control for DC/DC optimization, and UART/INT or SOUT/CLK_O diagnostic readback options.
Technical Context
The TLC69600YBHR implements a 16-channel constant-current sink architecture synchronized with TLC696x2/4/8 current-sink drivers to enable 2×/4×/8× time-multiplexed scan control of backlight MOSFETs. It integrates ghost-cancellation logic to eliminate upside ghosting in high-contrast LCD displays.
Its adaptive headroom voltage control directly regulates external DC/DC converters via a single FB pin from the last device in the daisy chain, reducing layout complexity. Diagnostics include LED open (LOD), LED short (LSD), and thermal shutdown (TSD) detection with dual programmable readback paths: UART + INT pin or two-wire CLK_O/SOUT.
Key Specifications
| Parameter | Value and Actual Design Meaning |
|---|---|
| VCC Range | 3V to 5.5V - supports direct connection to standard logic supply rails without level-shifting. |
| Max Drive Current / Sustaining Voltage | 30mA / 20V - enables robust gate driving of P-MOSFETs in local dimming zones up to 20V VGS. |
| Daisy-Chain Data Rate | Up to 20MHz - allows fast brightness updates across multi-device chains for flicker-free variable refresh rate (VRR). |
| I/O Voltage Compatibility | 1.8V / 3.3V - interoperable with low-voltage microcontrollers and FPGAs without interface translation. |
| Thermal Shutdown Detection | Integrated TSD flag - triggers automatic shutdown and reports fault via UART/INT or SOUT/CLK_O for system-level thermal management. |
| Current Control Resolution | Global + per-channel 8-bit - provides 256-step fine-grained dimming control for uniform local dimming performance. |
| Operating Temperature | –40°C to +85°C - qualified for consumer and industrial display environments including notebooks and monitors. |
Pinout & Package
Package: 24-ball DSBGA (YBH), 1.58mm × 2.43mm body size, 0.4mm pitch, SNAGCU ball finish, MSL Level-1.
| Pin/Terminal | Circuit Role | Design Meaning |
|---|---|---|
| VCC | Power supply input | 3V–5.5V main supply for internal logic and interface drivers. |
| GND | Ground reference | Common return path for all analog and digital circuits; requires low-impedance PCB connection. |
| CLK_I | Input clock | Accepts master clock up to 20MHz for synchronous daisy-chain data transfer. |
| SIN | Serial data input | Receives configuration and brightness data from upstream controller or host MCU. |
| SOUT | Serial data output | Drives downstream device in daisy chain; also used for diagnostic readback in two-wire mode. |
| CLK_O | Output clock | Propagates synchronized clock to next device; paired with SOUT for diagnostic reporting. |
| FB | Feedback input | Connects only from last device in chain to DC/DC converter feedback node for adaptive headroom control. |
| INT | Interrupt output | Active-low open-drain signal indicating LOD, LSD, or TSD fault; used with UART readback option. |
| G0–G7 | Gate drive outputs | Eight dedicated outputs controlling P-MOSFET gates in local dimming scan rows. |
| D0–D7 | Dimming control outputs | Eight constant-current sink channels (30mA max) for LED string current regulation. |
Key Features
| Feature | Design Value |
|---|---|
| Ghost-cancellation function | Eliminates visual upside ghosting artifacts in time-multiplexed local dimming by synchronizing scan timing and current settling. |
| Adaptive headroom voltage control | Reduces power loss in DC/DC stage by dynamically adjusting output voltage to match minimum required VLED headroom across all zones. |
| Minimum brightness update latency | Enables sub-frame brightness updates for smooth VRR transitions without visible flicker or stepping. |
| Programmable black insertion | Inserts controlled black frames between refresh cycles to enhance contrast ratio and motion clarity in fast-moving content. |
| Dual diagnostic readback modes | UART + INT or CLK_O + SOUT - allows flexible integration into host systems with constrained GPIO or UART resources. |
Applications
| TV Local Dimming | Monitor Backlight Control |
|---|---|
Use Scenario: High-dynamic-range (HDR) television with zone-based backlight dimming for enhanced contrast and black level fidelity. IC Role / Device Role / Timing Role: Scan MOSFET controller coordinating 8 P-MOSFETs per device to enable 2×/4×/8× time-multiplexed local dimming zones. Use Value: Achieves >10,000:1 contrast ratio using ghost-cancellation and adaptive headroom control while minimizing power dissipation. | Use Scenario: Professional-grade desktop monitor requiring flicker-free variable refresh rate (VRR) and precise luminance uniformity. IC Role / Device Role / Timing Role: Constant-current sink and gate driver managing 16 LED strings per device with per-channel 8-bit dimming resolution. Use Value: Enables seamless VRR operation up to 144Hz with minimum brightness update latency and programmable black insertion. |
| Notebook Display Dimming | Tablet Backlight System |
Use Scenario: Thin-and-light notebook with edge-lit or full-array local dimming backlight for battery-efficient HDR viewing. IC Role / Device Role / Timing Role: Low-power scan controller interfacing to 1.8V/3.3V host processor via high-speed daisy chain (≤20MHz). Use Value: Reduces BOM count via simplified DC/DC control (single FB connection) and supports thermal-safe operation down to –40°C ambient. | Use Scenario: Portable tablet requiring compact, thermally efficient backlight control with diagnostic visibility for field reliability. IC Role / Device Role / Timing Role: DSBGA-packaged controller (1.58mm × 2.43mm) providing LOD/LSD/TSD detection with UART or two-wire readback. Use Value: Enables compact PCB layout and real-time fault logging without adding external monitoring ICs or GPIO overhead. |
Equivalent & Alternatives
The following parts are listed as comparable options for similar scan MOSFET controller applications.
| Alternative Part | Technical Difference | Application Difference | Selection Advice |
|---|---|---|---|
| TLC69610YBHR | 60mA / 20V drive capability vs. TLC69600YBHR's 30mA - higher gate charge handling for larger P-MOSFETs. | Required where local dimming zones demand higher peak gate drive current or faster switching slew rates. | Select when driving high-capacitance MOSFETs or extending dimming zone count beyond 8 per controller. |
| TLC69650YBHR | 30mA / 50V sustaining voltage vs. TLC69600YBHR's 20V - supports higher VGS bias for wide-VDS MOSFETs. | Needed in high-voltage backlight architectures (e.g., >30V VLED) where 20V gate drive margin is insufficient. | Choose for designs using 48V DC bus or requiring extended gate overdrive safety margin under transient conditions. |
Compared with TLC69610YBHR and TLC69650YBHR, the TLC69600YBHR offers optimal balance of drive strength, voltage rating, and thermal efficiency for mainstream 24V-class LCD backlight systems in TVs, monitors, and notebooks - avoiding overdesign while maintaining full diagnostic and VRR feature support.
Availability
TLC69600YBHR is available at Aetrix Electronics and suitable for LCD local dimming backlight systems in TVs, monitors, and notebooks requiring stable component supply, long-term lifecycle support, and traceable sourcing for volume production.
Supply support for TLC69600YBHR 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 over 90 years of innovation in high-reliability electronic components.
The TLC696x0 product line is designed specifically for high-fidelity LCD local dimming backlight control, integrating scan timing, current regulation, diagnostics, and EMI-optimized interfaces to simplify system-level implementation.
FAQ
What is the maximum driving current and sustaining voltage specification for the TLC69600YBHR?
The TLC69600YBHR delivers a maximum driving current of 30mA at a sustaining voltage of 20V. This specification enables reliable gate control of P-MOSFETs used in LCD local dimming backlight circuits, supporting typical VGS requirements while maintaining thermal stability under continuous operation. The 30mA/20V rating is confirmed in TI's SNVSCJ8 datasheet and applies specifically to the TLC69600 variant, distinguishing it from TLC69610 (60mA/20V) and TLC69650 (30mA/50V).
Does the TLC69600YBHR support daisy-chain communication, and what is its maximum data rate?
Yes, the TLC69600YBHR supports high-speed daisy-chain communication with a maximum data transfer rate of 20MHz. Its CLK_I, SIN, SOUT, and CLK_O pins enable synchronous serial configuration and brightness updates across multiple devices. The interface is I/O voltage compatible with both 1.8V and 3.3V logic families, eliminating level-shifting requirements in mixed-voltage systems. This capability is essential for coordinated local dimming in large-format displays using multiple TLC69600YBHR controllers.
How does the adaptive headroom voltage control function work in the TLC69600YBHR?
The TLC69600YBHR implements adaptive headroom voltage control by regulating an external DC/DC converter through the FB pin - but only the FB pin from the last device in the daisy chain must be connected. This scheme dynamically adjusts the DC/DC output voltage to match the minimum required headroom across all active LED strings, reducing power loss and heat generation. It simplifies PCB layout by eliminating per-device feedback routing and is explicitly documented in the "Description" section of the SNVSCJ8 datasheet.
What diagnostic functions does the TLC69600YBHR provide, and how are they reported?
The TLC69600YBHR provides three hardware-diagnostic flags: LED open detection (LOD), LED short detection (LSD), and thermal shutdown detection (TSD). These are reported via two programmable readback options: (1) UART serial interface plus active-low INT pin, or (2) two-wire CLK_O and SOUT signals. Configuration is register-controlled, allowing system designers to select the interface that best matches host processor capabilities - a feature confirmed in the "Diagnostics" subsection of the datasheet's Features table.
What package type and dimensions does the TLC69600YBHR use, and what is its moisture sensitivity level?
The TLC69600YBHR uses a 24-ball DSBGA (YBH) package with nominal body dimensions of 1.58mm × 2.43mm and 0.4mm ball pitch. It features SNAGCU (tin-silver-copper) ball finish and is rated MSL Level-1 (260°C peak reflow, unlimited floor life), per the Package Option Addendum in SNVSCJ8. This ultra-compact, low-profile package supports high-density PCB layouts typical in space-constrained notebook and tablet backlight modules.
TLC69600YBHR Specifications
- Product attributes
- Attribute value
- Manufacturer:
- Texas Instruments
- Series:
- TLC696x0
- Package/Case:
- 24-BGA, DSBGA
- 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:
- 30mA
- Frequency:
- -
- Dimming:
- No
- Applications:
- Backlight
- Operating Temperature:
- -40°C ~ 85°C
- Grade:
- -
- Qualification:
- -
- Mounting Type:
- Surface Mount
- Supplier Device Package:
- 24-DSBGA (1.58x2.43)
TLC69600YBHR FAQ
1.How can I place an order for TLC69600YBHR through Aetrix?
Please submit a Request for Quotation (RFQ) for TLC69600YBHR 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 TLC69600YBHR reliable?
The price and inventory of TLC69600YBHR are updated periodically and may fluctuate due to market conditions. Stock and pricing data are typically refreshed every 24 hours. Quotation validity for TLC69600YBHR is usually 5 days.
3.What payment methods are accepted for TLC69600YBHR?
We accept Wire Transfer, PayPal, Credit Card, Western Union, MoneyGram, and Escrow for TLC69600YBHR transactions.
Note: Certain payment methods may incur a processing fee.
4.How is shipping managed for TLC69600YBHR?
TLC69600YBHR orders can be shipped via leading logistics carriers, including DHL, UPS, FedEx, TNT, or Registered Mail.
Once your TLC69600YBHR 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 TLC69600YBHR?
For technical support, including TLC69600YBHR datasheets, pinout diagrams, or application guidance, please contact our engineering support team. They can provide detailed documentation and assistance for your TLC69600YBHR requirements.
6.How does Aetrix verify that TLC69600YBHR is sourced from the original manufacturer or authorized distributors?
All TLC69600YBHR 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 TLC69600YBHR meets industry standards.
7.What is the process for return or replacement of TLC69600YBHR?
All TLC69600YBHR units undergo pre-shipment inspection (PSI). If there is an issue with TLC69600YBHR, 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 TLC69600YBHR part is unused and in its original packaging.
Return procedure for TLC69600YBHR:
1.Submit a request within 90 days.
2.Obtain a Return Material Authorization (RMA) from Aetrix.
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