TLC5941RHBRG4 Texas Instruments Integrated Circuit (Quad Flat No-Lead) In Stock
TLC5941RHBRG4 is a 16-channel constant-current LED driver from Texas Instruments with 12-bit grayscale PWM and 6-bit dot-correction per channel. It operates from 3.3 V or 5 V logic and fits a compact 32-pin VQFN package for high-density LED matrix applications.
- Manufacturer
- Texas Instruments
- Package
- Quad Flat No-Lead
- Pin Count
- 32
- Lifecycle
- OBSOLETE
- Datasheet
- TLC5941RHBRG4 Datasheet PDF
- Category
- Integrated Circuit
- Temp Range
- -40.0°C to 85.0°C
- RoHS
- Compliant
- Lead Time
- 3–7 business days
- Shipping
- DHL Express · Worldwide
What are the key features of TLC5941RHBRG4?
- 16 independent constant-current sink channels each with 12-bit (4096-step) grayscale PWM for smooth, flicker-free LED dimming
- Per-channel 6-bit dot-correction trims channel-to-channel current mismatch down to ±3% without external resistors
- Serial daisy-chain interface allows cascading multiple TLC5941 devices to drive large LED arrays from a single SPI port
What is TLC5941RHBRG4 used for?
TLC5941RHBRG4 is used in RGB LED panels, professional stage lighting, and multi-segment display systems that demand precise per-channel brightness control. Its 12-bit grayscale depth and integrated dot-correction make it ideal for color-calibrated signage, wearable LED matrices, and gaming peripherals. The SPI-compatible serial interface simplifies connection to ARM, AVR, or PIC microcontrollers for real-time animation and effect rendering.
What are the specifications of TLC5941RHBRG4?
| YTEOL | 0 |
| Data Input Mode | SERIAL |
| Interface IC Type | LED DISPLAY DRIVER |
| JESD-30 Code | S-PQCC-N32 |
| JESD-609 Code | e4 |
| Multiplexed Display Capability | NO |
| Number of Functions | 1 |
| Number of Segments | 16 |
| Package Body Material | PLASTIC/EPOXY |
| Package Equivalence Code | LCC32,.2SQ,20 |
| Package Shape | SQUARE |
| Package Style | CHIP CARRIER, HEAT SINK/SLUG, VERY THIN PROFILE |
| Peak Reflow Temperature (Cel) | 260 |
| Qualification Status | Not Qualified |
| 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 | NO LEAD |
| Terminal Pitch | 0.5mm |
| Terminal Position | QUAD |
| Time@Peak Reflow Temperature-Max (s) | 30 |
| fmax-Min | 30MHz |
| Package | Quad Flat No-Lead |
Compliance & Regulatory
| RoHS Status | Compliant |
| Lead-Free | Yes (Pb-Free) |
| Moisture Sensitivity Level | MSL 2 |
| ECCN | EAR99 |
| HTS Code | 8542.39.00.60 |
Where can I find the TLC5941RHBRG4 datasheet?
TLC5941RHBRG4 Datasheet DownloadOfficial datasheet from Texas Instruments
What are equivalent replacements for TLC5941RHBRG4?
Compatible alternatives and drop-in replacements for TLC5941RHBRG4:
Frequently Asked Questions
How many grayscale levels does TLC5941RHBRG4 support per channel, and how does that compare to 8-bit drivers?
TLC5941RHBRG4 provides 12-bit grayscale control per channel, giving 4096 brightness steps compared to only 256 steps in an 8-bit driver. The higher resolution eliminates visible banding in low-brightness LED fade effects and allows smoother color transitions in RGB panels. Combined with 6-bit dot-correction that individually trims each of the 16 channels, the driver achieves visually accurate brightness matching across an entire LED array without extra calibration hardware.
How many TLC5941RHBRG4 devices can be cascaded, and what is the maximum number of LED channels achievable?
TLC5941RHBRG4 can be chained in a serial daisy-chain configuration with no practical limit imposed by the device itself. Each device adds 16 constant-current channels, so 10 cascaded devices control 160 LED channels over a single 3-wire SPI bus (SDI, CLK, XLAT). This scalability makes it popular for driving large 8×8 or 16×16 RGB LED matrices where hundreds of channels must be updated in real time at refresh rates above 100 Hz.
For a compact LED wearable design, how much PCB area does the TLC5941RHBRG4 VQFN package occupy?
The 32-pin VQFN package measures 5 mm × 5 mm with a 0.5 mm pitch, occupying only 25 mm² of PCB area. This is significantly smaller than equivalent 32-pin TQFP packages, which typically exceed 80 mm². The exposed thermal pad on the bottom also improves heat dissipation, allowing the driver to handle up to 17 mA per channel across all 16 channels without excessive junction temperature rise in wearable or handheld products.
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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.
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