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Texas Instruments TLC5930PWPR
- Part No.:
- TLC5930PWPR
- Manufacturer:
- Texas Instruments
- Category:
- LED Drivers
- Package:
- 24-PowerTSSOP (0.173", 4.40mm Width)
- Datasheet:
-
TLC5930PWPR.pdf
- Description:
- IC LED DRVR LINEAR 40MA 24HTSSOP
- Quantity:
- Payment:
- Shipping:
Inventory:3,272
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Product details
Overview
TLC5930PWPR from Texas Instruments is a 12-channel constant-current LED sink driver with 1024-step PWM grayscale control, 0.2–40 mA per channel adjustable via external IREF resistor, and DS-Link serial interface supporting up to 20 Mbps data rate in 24-pin HTSSOP (PWP) package. It enables high-fidelity full-color LED display driving with integrated dot correction, plane brightness adjustment, and OVM-based LED open-circuit detection.
For engineers reviewing the TLC5930PWPR datasheet, TLC5930PWPR pinout, TLC5930PWPR application, or TLC5930PWPR equivalent, key selection considerations include its 12-bit constant-current sink architecture, 25-MHz max grayscale clock support, three independent brightness control modes (plane/frequency/dot), thermal error flag (TEF), and cascade-compatible DS-Link packet protocol for multi-device LED panel synchronization.
Technical Context
The TLC5930PWPR implements a 12-bit PWM grayscale engine synchronized to an external or internally generated GCLK signal, with precise current regulation across all 12 outputs using a single external resistor at IREF. Its DS-Link interface uses dual-wire (DTIN/STIN) packetized communication with 2-bit output delay and automatic cascade propagation timing compensation.
It integrates four functional layers: (1) analog current regulation with ±4% channel-to-channel matching, (2) digital grayscale counter and latch logic triggered by HSYNC packets, (3) error monitoring subsystem (TEF, GEF, HEF, LKD, OVM), and (4) programmable operation modes including force-on, blanking, and dual-source grayscale clock (DSG) selection.
Key Specifications
| Parameter | Value and Actual Design Meaning |
|---|---|
| Output Channels | 12 constant-current sink outputs (OUT0–OUT11), each independently controllable for RGBx4 pixel mapping. |
| Grayscale Resolution | 1024 steps (10-bit PWM), enabling smooth intensity gradation without visible contouring in LED displays. |
| Current Range | 0.2 mA to 40 mA per channel, set by external IREF resistor; max 45 mA absolute rating ensures margin for transient loads. |
| DS-Link Data Rate | Up to 20 Mbps, supporting fast update of grayscale/dot-correction data across cascaded devices with minimal bus overhead. |
| GCLK Frequency | Up to 25 MHz, enabling full 1024-step grayscale refresh at >240 Hz for flicker-free operation in high-brightness panels. |
| Supply Voltage | 3.0 V to 3.6 V (LVTTL-compatible), optimized for low-noise 3.3-V systems without level-shifting requirements. |
| Operating Temperature | –20°C to +85°C ambient, validated for industrial indoor LED signage and instrumentation displays. |
Pinout & Package
Package: 24-pin HTSSOP (PowerPAD™ TSSOP, PWP), thermally enhanced with exposed thermal pad for improved power dissipation (3.7 W rating at 25°C).
| Pin/Terminal | Circuit Role | Design Meaning |
|---|---|---|
| OUT0–OUT11 | Constant-current sink output | 12 dedicated LED cathode drive terminals; each delivers precisely regulated current based on grayscale + dot-correction data. |
| GCLK | Gray-scale clock input | Synchronizes PWM counter; supports external clock or internal generation via DS-Link edge detection (DSG function). |
| DTIN / STIN | DS-Link data/strobe inputs | Differential-like serial interface: DTIN carries packet data, STIN provides frame synchronization; enables daisy-chain topology. |
| DTOUT / STOUT | DS-Link data/strobe outputs | Re-timed, 2-bit-delayed echo of DTIN/STIN for seamless cascading without external buffering. |
| IREF | Current reference input/output | Connect external resistor to GND to set output current; 168× current gain enables fine resolution with standard resistor values. |
| XRST | Hardware reset input | Active-low asynchronous reset (internally pulled up); initializes registers and clears fault flags on power-up or error recovery. |
| VCC / GND | Power supply | Single 3.3-V supply with four GND pins (pins 4, 8, 12, 21) for low-impedance return paths and reduced ground bounce. |
Key Features
| Feature | Design Value |
|---|---|
| Triple brightness control | Independent plane-level (64-step), frequency-division (16-step), and per-output dot-correction (256-step) adjustments enable uniform luminance calibration across large LED arrays. |
| OVM LED open-detection | On-chip open-load comparator monitors each OUTn voltage; flags failure via OVM register for real-time panel health monitoring. |
| Thermal error flag (TEF) | Dedicated TEF pin asserts when junction temperature exceeds 150°C–170°C, enabling system-level thermal shutdown before damage occurs. |
| Active wire-check (AWC) | Validates DTIN/STIN communication integrity during packet transfer; prevents mislatched data due to noise or broken traces. |
| LED leakage detection (LKD) | Identifies reverse leakage current >0.1 µA at OUTn terminals, detecting degraded or moisture-compromised LEDs before catastrophic failure. |
Applications
| Indoor Full-Color LED Signage | RGB LED Video Wall Controller |
|---|---|
|
Use Scenario: Driving 16×16 RGB pixel modules in commercial retail signage with uniform brightness and color fidelity. IC Role / Device Role / Timing Role: Constant-current sink driver providing per-pixel grayscale and dot-correction data via DS-Link cascade; synchronized to global GCLK for frame coherence. Use Value: Eliminates manual LED binning via 256-step dot correction, reduces panel power variance by ±4% current matching, and enables remote fault reporting via OVM/LKD registers. |
Use Scenario: Backplane controller for modular video wall tiles requiring hot-swap capability and real-time brightness calibration. IC Role / Device Role / Timing Role: Primary grayscale engine receiving serialized video data over DS-Link; uses HSYNC packets to coordinate blanking and latch timing across 16+ cascaded TLC5930PWPRs. Use Value: Achieves sub-millisecond inter-tile sync via DS-Link packet propagation timing; supports dynamic recalibration without interrupting display operation. |
| Industrial Panel Meter Displays | Automotive Interior Ambient Lighting |
|
Use Scenario: High-reliability segmented LED indicators in factory HMIs where long-term luminance stability is critical. IC Role / Device Role / Timing Role: Precision current sink managing 12 discrete status LEDs; leverages plane brightness adjustment for daylight/night mode switching. Use Value: Maintains ±0.4% relative current accuracy over –20°C to +85°C via bandgap-referenced IREF circuitry and thermal derating compensation. |
Use Scenario: RGB ambient lighting control in vehicle cabins with adaptive color tuning and fault-safe dimming. IC Role / Device Role / Timing Role: LED driver implementing color-tone correction to compensate for LED wavelength drift; uses TEF for thermal derating during prolonged operation. Use Value: Enables perceptually consistent white-point maintenance across temperature gradients using 4-pixel color-tone correction (OUT0–OUT2, etc.). |
Equivalent & Alternatives
The following parts are listed as comparable options for similar constant-current LED driver applications.
| Alternative Part | Technical Difference | Application Difference | Selection Advice |
|---|---|---|---|
| TLC5940PWPR | 16-channel, 12-bit grayscale, no DS-Link; uses SPI + DCPR interface; higher max current (120 mA) but larger 28-pin TSSOP package. | Preferred for higher-current monochrome or dual-color LED arrays where DS-Link cascade is unnecessary. | Select TLC5940PWPR when >12 channels or >40 mA per channel is required; avoid if DS-Link daisy-chaining or 24-pin footprint is mandatory. |
| IS31FL3728-QFLS4 | 18-channel, I²C interface, built-in EEPROM for dot-correction storage; lower max current (45 mA), 24-pin QFN package with no exposed pad. | Better suited for space-constrained consumer electronics with firmware-driven calibration persistence. | Choose IS31FL3728-QFLS4 for I²C-based systems needing nonvolatile dot-correction settings; not drop-in due to different protocol and thermal design. |
Compared with TLC5940PWPR and IS31FL3728-QFLS4, the TLC5930PWPR uniquely balances 12-channel precision, DS-Link scalability, and thermal robustness in a compact HTSSOP package-making it optimal for cost-sensitive, high-channel-count LED signage where deterministic cascade timing and real-time fault visibility are essential.
Availability
TLC5930PWPR is available at Aetrix Electronics and suitable for indoor LED signage, industrial HMI displays, and automotive ambient lighting requiring stable component supply, long-lifecycle availability, and traceable sourcing.
Supply support for TLC5930PWPR 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 high-reliability power management solutions.
The TLC5930PWPR belongs to TI's LED driver product line, engineered specifically for high-fidelity, multi-channel LED display systems demanding precise grayscale control, robust fault diagnostics, and scalable serial interfacing.
FAQ
What is the maximum number of TLC5930PWPR devices that can be cascaded using DS-Link?
The TLC5930PWPR supports arbitrary-length DS-Link daisy chains; however, timing constraints require adding 2 dummy bits per device beyond the final unit to ensure complete packet propagation. For example, cascading 16 devices requires 32 additional bits after the main packet. The TLC5930PWPR's DS-Link architecture maintains signal integrity across >50 devices when using proper PCB layout practices and termination.
How does the IREF pin set output current in the TLC5930PWPR?
The TLC5930PWPR uses an internal 168× current mirror referenced to the current flowing through an external resistor (RIREF) connected between IREF and GND. With VIREF = 1.23 V, RIREF = 5.1 kΩ yields 40 mA per channel. The formula is IO(LC) = (1.23 V / RIREF) × 168. Values ≤4.88 kΩ ensure compliance with the 45 mA absolute maximum rating.
Does the TLC5930PWPR support both external and internal grayscale clock sources?
Yes-the TLC5930PWPR implements dual-source grayscale clock (DSG) functionality. When DSGSL = 0 (default), GCLK is used directly. When DSGSL = 1, the device generates GCLK internally from DTIN/STIN edges, enabling fully synchronous operation without an external clock generator-ideal for isolated or clock-constrained designs.
What fault conditions does the TLC5930PWPR monitor and report?
The TLC5930PWPR monitors five distinct fault types: thermal error (TEF), gray-scale clock error (GEF), HSYNC error (HEF), LED open-circuit (OVM), and LED reverse leakage (LKD). Each condition sets a dedicated flag bit readable via DS-Link packet; TEF and OVM also assert dedicated output pins for hardware interrupt handling.
Can the TLC5930PWPR drive common-anode LED configurations?
No-the TLC5930PWPR is a constant-current sink only, designed exclusively for common-anode LED connections where the anodes are tied to VCC (or higher voltage) and cathodes connect to OUT0–OUT11. It cannot source current or drive common-cathode configurations without external high-side switches.
TLC5930PWPR Specifications
- Product attributes
- Attribute value
- Manufacturer:
- Texas Instruments
- Series:
- -
- Package/Case:
- 24-PowerTSSOP (0.173", 4.40mm Width)
- Packaging:
- Tape & Reel (TR)
- Product Status:
- Obsolete
- Type:
- Linear
- Topology:
- Shift Register
- Internal Switch(s):
- Yes
- Number of Outputs:
- 12
- Voltage - Supply (Min):
- 3V
- Voltage - Supply (Max):
- 3.6V
- Voltage - Output:
- 17V
- Current - Output / Channel:
- 40mA
- Frequency:
- 25MHz
- Dimming:
- -
- Applications:
- -
- Operating Temperature:
- -20°C ~ 85°C (TA)
- Grade:
- -
- Qualification:
- -
- Mounting Type:
- Surface Mount
- Supplier Device Package:
- 24-HTSSOP
TLC5930PWPR FAQ
1.How can I place an order for TLC5930PWPR through Aetrix?
Please submit a Request for Quotation (RFQ) for TLC5930PWPR 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 TLC5930PWPR reliable?
The price and inventory of TLC5930PWPR are updated periodically and may fluctuate due to market conditions. Stock and pricing data are typically refreshed every 24 hours. Quotation validity for TLC5930PWPR is usually 5 days.
3.What payment methods are accepted for TLC5930PWPR?
We accept Wire Transfer, PayPal, Credit Card, Western Union, MoneyGram, and Escrow for TLC5930PWPR transactions.
Note: Certain payment methods may incur a processing fee.
4.How is shipping managed for TLC5930PWPR?
TLC5930PWPR orders can be shipped via leading logistics carriers, including DHL, UPS, FedEx, TNT, or Registered Mail.
Once your TLC5930PWPR 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 TLC5930PWPR?
For technical support, including TLC5930PWPR datasheets, pinout diagrams, or application guidance, please contact our engineering support team. They can provide detailed documentation and assistance for your TLC5930PWPR requirements.
6.How does Aetrix verify that TLC5930PWPR is sourced from the original manufacturer or authorized distributors?
All TLC5930PWPR 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 TLC5930PWPR meets industry standards.
7.What is the process for return or replacement of TLC5930PWPR?
All TLC5930PWPR units undergo pre-shipment inspection (PSI). If there is an issue with TLC5930PWPR, 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 TLC5930PWPR part is unused and in its original packaging.
Return procedure for TLC5930PWPR:
1.Submit a request within 90 days.
2.Obtain a Return Material Authorization (RMA) from Aetrix.
TLC5930PWPR Tags
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BCR420UE6433HTMA1
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HV9910CLG-G
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