TLC5940PWPG4 Texas Instruments Integrated Circuit (Small Outline Packages) In Stock
Texas Instruments TLC5940PWPG4 is a 16-channel LED driver with 12-bit grayscale PWM control and 6-bit dot correction per channel. Operates at 3.3V/5V via serial interface in a 28-Pin HTSSOP package. From $1.44 in stock with worldwide shipping.
- Manufacturer
- Texas Instruments
- Package
- Small Outline Packages
- Pin Count
- 28
- Lifecycle
- OBSOLETE
- Datasheet
- TLC5940PWPG4 Datasheet PDF
- Category
- Integrated Circuit
- Price
- From $1.4387(MOQ 3)
- Temp Range
- -40.0°C to 85.0°C
- RoHS
- Compliant
- Lead Time
- 3–7 business days
- Shipping
- DHL Express · Worldwide
Key Features
- 16-channel constant-current LED driver with individual 12-bit (4096-step) grayscale PWM control per channel
- 6-bit dot correction (64 steps) per channel for precise luminance balancing across LED arrays
- Serial daisy-chain interface enables cascading multiple TLC5940 devices for large LED matrix expansion
- Wide supply voltage range (3.3V/5V) with built-in output short-circuit and thermal protection
- 28-Pin HTSSOP package with exposed thermal pad for efficient heat dissipation in space-constrained designs
Applications
The TLC5940PWPG4 is widely used in RGB LED matrix displays, dot-matrix signage boards, and architectural LED lighting systems requiring independent per-channel dimming. It is also a popular choice in gaming peripherals, backlighting controllers, and stage lighting equipment where precise 12-bit grayscale PWM delivers smooth, flicker-free brightness transitions. Additionally, it suits industrial indicator panels and embedded system LED status arrays where daisy-chaining multiple drivers simplifies wiring and microcontroller I/O usage.
Specifications
| YTEOL | 0 |
| Data Input Mode | SERIAL |
| Display Mode | DOT MATRIX |
| Input Characteristics | STANDARD |
| Interface IC Type | LED DISPLAY DRIVER |
| JESD-30 Code | R-PDSO-G28 |
| JESD-609 Code | e4 |
| Multiplexed Display Capability | NO |
| Number of Functions | 1 |
| Number of Segments | 16 |
| Output Characteristics | OPEN-DRAIN |
| Package Body Material | PLASTIC/EPOXY |
| Package Equivalence Code | TSSOP28,.25 |
| Package Shape | RECTANGULAR |
| Package Style | SMALL OUTLINE, HEAT SINK/SLUG, THIN PROFILE, SHRINK PITCH |
| Peak Reflow Temperature (Cel) | 260 |
| Qualification Status | Not Qualified |
| Supply Current-Max | 60mA |
| Supply Voltage-Max | 5.5V |
| Supply Voltage-Min | 3V |
| Supply Voltage-Nom | 5V |
| Surface Mount | YES |
| Temperature Grade | INDUSTRIAL |
| Terminal Finish | NICKEL PALLADIUM GOLD |
| Terminal Form | GULL WING |
| Terminal Pitch | 0.65mm |
| Terminal Position | DUAL |
| Time@Peak Reflow Temperature-Max (s) | 30 |
| fmax-Min | 30MHz |
| ## TLC5940PWPG4 Alternates Showing results | Image |
| Package | Small Outline Packages |
Compliance & Regulatory
| RoHS Status | Compliant |
| Lead-Free | Yes (Pb-Free) |
| Moisture Sensitivity Level | MSL 2 |
| ECCN | EAR99 |
| HTS Code | 8542.39.00.60 |
| Country of Origin | Malaysia, Taiwan |
Alternate & Equivalent Parts
Compatible alternatives and drop-in replacements for TLC5940PWPG4:
Frequently Asked Questions
What is the TLC5940PWPG4 and what are its key electrical specifications?
The TLC5940PWPG4 is a 16-channel, constant-current LED driver from Texas Instruments. It provides 12-bit (4096-step) grayscale PWM control and 6-bit (64-step) dot correction per channel. It operates from a 3.3V or 5V supply, supports output currents up to 120mA per channel, and communicates via a serial SPI-compatible interface. The device is housed in a 28-Pin HTSSOP (PWPG4) package.
How does the dot correction feature work on the TLC5940PWPG4?
Dot correction on the TLC5940PWPG4 allows each of the 16 output channels to be individually calibrated with a 6-bit value (0–63) that scales the maximum output current set by an external resistor (RIREF). This compensates for LED-to-LED luminance variation within a display, ensuring uniform brightness across all segments without requiring matched LEDs. Dot correction data is loaded via the serial interface and stored in internal registers.
Can multiple TLC5940PWPG4 devices be cascaded, and how many channels can be driven?
Yes, the TLC5940PWPG4 supports serial daisy-chaining. Multiple devices can be connected in series by linking the SOUT pin of one device to the SIN pin of the next, sharing SCLK, XLAT, and BLANK signals. Each device adds 16 channels, so two cascaded TLC5940s drive 32 channels, four drive 64 channels, and so on — limited only by the microcontroller's timing and available GPIO.
What are common alternatives to the TLC5940PWPG4 and when should I consider them?
Common alternatives include the TLC5947 (24 channels, 12-bit PWM, no dot correction, SPI interface) for higher channel count applications, the PCA9685 (16 channels, 12-bit PWM, I2C interface) when I2C bus compatibility is required, and the IS31FL3741 for very dense LED matrix driving. Choose the TLC5940 when both per-channel dot correction and grayscale PWM are needed simultaneously in a 3.3V/5V mixed-voltage system.
Where can I buy the TLC5940PWPG4 and what is the typical price?
The TLC5940PWPG4 is available from major electronics distributors including Digi-Key, Mouser, and Arrow, as well as through FindMyChip with worldwide shipping. Typical single-unit pricing starts around $1.44, with volume pricing available for production quantities. Lead times vary by distributor; stock availability can be checked in real time on FindMyChip.
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Why Buy from FindMyChip
About Texas Instruments
Texas Instruments (TI) is a global semiconductor company headquartered in Dallas, Texas. TI designs and manufactures analog and embedded processing chips used in industrial, automotive, consumer, communications, and enterprise systems.
| Qty. | Unit Price | Ext. Price |
|---|---|---|
| 3+ | $3.6800 | $11.04 |
| 10+ | $3.2300 | $32.30 |
| 50+ | $2.6300 | $131.50 |
| 129+ | $1.5556 | $200.67 |
| 167+ | $1.4972 | $250.03 |
| 209+ | $1.4387 | $300.69 |
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