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Texas Instruments TLC69600QPWPRQ1
- Part No.:
- TLC69600QPWPRQ1
- Manufacturer:
- Texas Instruments
- Category:
- LED Drivers
- Package:
- 28-PowerTSSOP (0.173", 4.40mm Width)
- Datasheet:
-
TLC69600QPWPRQ1.pdf
- Description:
- AUTOMOTIVE 8-SCAN MOSFET CONTROL
- Quantity:
- Payment:
- Shipping:
Inventory:2,065
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Product details
Overview
TLC69600QPWPRQ1 from Texas Instruments is an AEC-Q100 Grade 1 automotive scan MOSFET controller designed to drive P-channel MOSFETs in LCD local dimming backlight systems. It delivers 30mA per channel at up to 20V, supports daisy-chained operation for up to 1024 devices, and integrates ghost-cancellation and adaptive headroom voltage control for optimized DC/DC efficiency in central information displays.
For engineers reviewing the TLC69600QPWPRQ1 datasheet, TLC69600QPWPRQ1 pinout, TLC69600QPWPRQ1 application, or TLC69600QPWPRQ1 equivalent, key selection criteria include its 28-pin HTSSOP package with PowerPAD thermal enhancement, 3V–5.5V VCC operation, 20MHz daisy-chain interface, UART/INT and SOUT/CLK_O diagnostic readback options, and integrated LED open/short and thermal shutdown detection.
Technical Context
The TLC69600QPWPRQ1 implements a time-multiplexed scan architecture compatible with current-sink drivers TLC696x2/4/8-Q1, enabling 2×, 4×, or 8× multiplexing for high-resolution local dimming. It integrates 16 constant-current sinks and controls up to 8 scan MOSFETs per device.
It features three diagnostic flags (LOD, LSD, TSD), programmable interface drive strength for EMI reduction, and two configurable readback modes: UART + interrupt pin or two-wire CLK_O/SOUT. The adaptive headroom scheme uses only the FB pin of the last device in the chain to simplify DC/DC feedback layout.
Key Specifications
| Parameter | Value and Actual Design Meaning |
|---|---|
| VCC Range | 3V to 5.5V - powers logic and interface circuitry without external LDO; compatible with automotive 3.3V/5V rails. |
| Channel Current | 30mA @ 20V - drives P-MOSFET gates directly for backlight scan switching with defined sink capability. |
| Daisy-Chain Speed | Up to 20MHz - enables fast configuration and status readback across long cascaded chains (≤1024 devices). |
| Operating Temp | –40°C to +125°C - qualified per AEC-Q100 Grade 1 for under-hood and display module environments. |
| I/O Voltage | 1.8V / 3.3V compatible - interfaces directly with low-voltage microcontrollers without level-shifting. |
| Diagnostic Outputs | UART + INT or CLK_O + SOUT - selectable readback path for real-time fault reporting in safety-critical displays. |
| ESD Rating | HBM Level 2 (±2kV), CDM Level C4B (±1kV) - meets automotive board-level ESD robustness requirements. |
Pinout & Package
Package: HTSSOP-28 (PWP) with exposed thermal pad (PowerPAD™), 9.7mm × 4.4mm body, 1.2mm max height, wettable flank option available. Thermal pad must be soldered for mechanical stability and junction-to-board thermal resistance ≤25°C/W.
| Pin/Terminal | Circuit Role | Design Meaning |
|---|---|---|
| GND | Ground reference | Primary analog/digital return; connects to PCB thermal plane via exposed pad and multiple vias. |
| VCC | Supply input | 3V–5.5V power for internal logic, interface, and gate drivers; requires local 100nF + 10µF decoupling. |
| CLK_I | Clock input | Accepts master clock (≤20MHz) for synchronous daisy-chain data transfer; 1.8V/3.3V tolerant. |
| SIN | Serial data input | Receives configuration or command data from upstream device or host MCU. |
| SOUT | Serial data output | Drives downstream device or host MCU with status/fault data in two-wire readback mode. |
| CLK_O | Clock output | Re-transmits CLK_I to next device; enables precise timing propagation in long chains. |
| FB | Feedback input | Only the last device's FB connects to DC/DC converter; enables simplified adaptive headroom control. |
| INT | Interrupt output | Active-low open-drain signal asserted on LOD, LSD, or TSD detection; requires pull-up. |
Key Features
| Feature | Design Value |
|---|---|
| Ghost-cancellation function | Eliminates upside ghosting artifacts in time-multiplexed local dimming by synchronizing scan timing and current sink settling. |
| Adaptive headroom control | Reduces DC/DC output voltage overhead dynamically, improving system efficiency by minimizing power loss in MOSFET drivers. |
| Programmable interface drive strength | Adjusts edge rate on CLK_I/SIN/SOUT to suppress EMI without sacrificing 20MHz throughput. |
| Minimum brightness update latency | Enables rapid dimming transitions for smooth video playback and black insertion in automotive HUDs/clusters. |
| VRR support | Variable refresh rate synchronization ensures flicker-free display updates during dynamic content rendering. |
Applications
| Automotive Central Information Display | Automotive Cluster Display |
|---|---|
Use Scenario: High-resolution infotainment screen requiring localized backlight dimming for contrast enhancement and power savings. IC Role / Device Role / Timing Role: Scan controller coordinating P-MOSFET switching sequence across 16+ zones, synchronized with TLC696x2/4/8-Q1 current sinks. Use Value: Enables >1000:1 contrast ratio and 30% lower backlight power consumption versus global dimming, while maintaining AEC-Q100 reliability. |
Use Scenario: Driver-facing digital instrument cluster where readability, response time, and thermal stability are critical. IC Role / Device Role / Timing Role: Local dimming sequencer managing scan timing, ghost cancellation, and real-time thermal monitoring for safe operation at 125°C ambient. Use Value: Delivers flicker-free zone updates (<5ms latency) and black insertion for motion clarity, meeting OEM display quality KPIs. |
| Automotive Head-Up Display (HUD) | Advanced Driver Assistance Systems (ADAS) Display |
Use Scenario: Compact HUD projector with limited thermal envelope requiring efficient, low-noise backlight control. IC Role / Device Role / Timing Role: Low-EMI scan controller using programmable drive strength and 20MHz daisy-chain to minimize radiated emissions near sensitive sensors. Use Value: Meets CISPR 25 Class 5 emission limits without added shielding, reducing BOM cost and board area. |
Use Scenario: Safety-critical ADAS display overlaying camera/LiDAR data, demanding functional safety compliance and fault transparency. IC Role / Device Role / Timing Role: Diagnostics-enabled controller providing UART-based fault logging (LOD/LSD/TSD) and interrupt-driven error signaling for ASIL-B system integration. Use Value: Supports ISO 26262 FMEDA analysis with documented failure modes and diagnostic coverage metrics for safety case evidence. |
Equivalent & Alternatives
The following parts are listed as comparable options for similar scan MOSFET controller applications.
| Alternative Part | Technical Difference | Application Difference | Selection Advice |
|---|---|---|---|
| TLC69610QPWPRQ1 | 60mA channel current rating (vs. 30mA), same 20V max, identical pinout and protocol. | Required when driving higher-gate-charge P-MOSFETs or longer trace lengths with higher capacitive load. | Select TLC69610QPWPRQ1 if gate drive strength exceeds 30mA requirement; otherwise TLC69600QPWPRQ1 offers optimal cost/power balance. |
| TLC69600QRTWRQ1 | Same electrical specs but in 24-pin WQFN (RTW) package: 4mm × 4mm, wettable flank, no leaded pins. | Better thermal performance (lower θJA) and smaller footprint; preferred for space-constrained HUD modules. | Choose TLC69600QRTWRQ1 for new designs prioritizing miniaturization and thermal headroom; HTSSOP remains optimal for legacy layouts and reworkability. |
Compared with TLC69610QPWPRQ1, the TLC69600QPWPRQ1 reduces gate drive margin for cost-sensitive clusters; versus TLC69600QRTWRQ1, it trades thermal efficiency for easier hand-soldering and probe access in validation labs.
Availability
TLC69600QPWPRQ1 is available at Aetrix Electronics and suitable for automotive central information displays, digital instrument clusters, and head-up displays requiring stable component supply across extended temperature ranges and long production lifecycles.
Supply support for TLC69600QPWPRQ1 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 ICs, with decades of automotive qualification expertise and AEC-Q100-compliant manufacturing.
The TLC696x0-Q1 product line was developed specifically for high-reliability automotive LCD backlight local dimming, emphasizing scan timing precision, diagnostic completeness, and seamless integration with TI's TLC696x2/4/8-Q1 current-sink families.
FAQ
What is the maximum number of TLC69600QPWPRQ1 devices that can be daisy-chained?
The TLC69600QPWPRQ1 supports cascading up to 1024 devices in a single daisy chain, enabled by its 20MHz high-speed serial interface and dedicated CLK_O/SOUT outputs. This scalability allows fine-grained local dimming control across large-area displays such as panoramic dashboards, while maintaining deterministic timing and minimal latency per stage. Each TLC69600QPWPRQ1 manages up to 8 scan MOSFETs, making the full chain capable of controlling thousands of backlight zones.
Does TLC69600QPWPRQ1 require external current-setting resistors?
No, the TLC69600QPWPRQ1 does not require external current-setting resistors. It implements two levels of digital current control: an 8-bit global Maximum Current (MC) setting and individual 8-bit Channel Current (CC) settings per channel, all configured via its serial interface. These registers directly program the internal current sinks, eliminating component count and layout complexity associated with resistor-based calibration.
How does the adaptive headroom voltage control work in TLC69600QPWPRQ1?
The TLC69600QPWPRQ1's adaptive headroom control monitors the required voltage headroom across the P-MOSFETs in the chain and dynamically adjusts the DC/DC converter output via the FB pin-only the last device in the daisy chain connects its FB pin to the DC/DC feedback node. This eliminates redundant feedback paths, simplifies PCB routing, and minimizes power loss by ensuring the DC/DC supplies just enough voltage to maintain saturation across all active MOSFETs under varying load and temperature conditions.
What diagnostic functions are supported by TLC69600QPWPRQ1?
The TLC69600QPWPRQ1 integrates three hardware-monitored diagnostics: LED Open Detection (LOD), LED Short Detection (LSD), and Thermal Shutdown Detection (TSD). Fault status is reported through either UART + INT pin or two-wire CLK_O/SOUT, both programmable via register. This dual-path reporting enables flexible integration into ASIL-B systems-UART provides detailed logging, while INT offers immediate hardware-level alerting for fail-safe responses.
Is TLC69600QPWPRQ1 pin-compatible with other members of the TLC696x0-Q1 family?
Yes, all HTSSOP-28 variants in the TLC696x0-Q1 family-including TLC69600QPWPRQ1, TLC69610QPWPRQ1, TLC69650QPWPRQ1, and TLC69660QPWPRQ1-are pin-compatible and share identical pinout, package dimensions, and interface protocol. This allows drop-in replacement based solely on channel current (30mA vs. 60mA) and voltage (20V vs. 50V) requirements without PCB redesign, supporting scalable design reuse across display tiers.
TLC69600QPWPRQ1 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:
- 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:
- Yes
- Applications:
- Backlight
- Operating Temperature:
- -40°C ~ 125°C (TA)
- Grade:
- Automotive
- Qualification:
- AEC-Q100
- Mounting Type:
- Surface Mount
- Supplier Device Package:
- 28-HTSSOP
TLC69600QPWPRQ1 FAQ
1.How can I place an order for TLC69600QPWPRQ1 through Aetrix?
Please submit a Request for Quotation (RFQ) for TLC69600QPWPRQ1 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 TLC69600QPWPRQ1 reliable?
The price and inventory of TLC69600QPWPRQ1 are updated periodically and may fluctuate due to market conditions. Stock and pricing data are typically refreshed every 24 hours. Quotation validity for TLC69600QPWPRQ1 is usually 5 days.
3.What payment methods are accepted for TLC69600QPWPRQ1?
We accept Wire Transfer, PayPal, Credit Card, Western Union, MoneyGram, and Escrow for TLC69600QPWPRQ1 transactions.
Note: Certain payment methods may incur a processing fee.
4.How is shipping managed for TLC69600QPWPRQ1?
TLC69600QPWPRQ1 orders can be shipped via leading logistics carriers, including DHL, UPS, FedEx, TNT, or Registered Mail.
Once your TLC69600QPWPRQ1 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 TLC69600QPWPRQ1?
For technical support, including TLC69600QPWPRQ1 datasheets, pinout diagrams, or application guidance, please contact our engineering support team. They can provide detailed documentation and assistance for your TLC69600QPWPRQ1 requirements.
6.How does Aetrix verify that TLC69600QPWPRQ1 is sourced from the original manufacturer or authorized distributors?
All TLC69600QPWPRQ1 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 TLC69600QPWPRQ1 meets industry standards.
7.What is the process for return or replacement of TLC69600QPWPRQ1?
All TLC69600QPWPRQ1 units undergo pre-shipment inspection (PSI). If there is an issue with TLC69600QPWPRQ1, 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 TLC69600QPWPRQ1 part is unused and in its original packaging.
Return procedure for TLC69600QPWPRQ1:
1.Submit a request within 90 days.
2.Obtain a Return Material Authorization (RMA) from Aetrix.
TLC69600QPWPRQ1 Tags
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BCR402RE6327HTSA1
Infineon Technologies
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BCR430UXTSA2
Infineon Technologies
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BCR420UE6433HTMA1
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BCR420UE6327HTSA1
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BCR421UE6327HTSA1
Infineon Technologies
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LYT1604D-TL
Power Integrations
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HV9910CLG-G
Microchip Technology
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CL2N8-G
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BCR420UW6-7
Diodes Incorporated
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BCR421UW6-7
Diodes Incorporated
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BCR420UFD-7
Diodes Incorporated
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BCR421UFD-7
Diodes Incorporated
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