Mfr Part #:

TLC5940NT

Q: Does the TLC5940NT have grayscale PWM control?

Yes, 12-bit grayscale PWM control.

The TLC5940NT is a 16-channel constant-current sink LED driver from Texas Instruments. It offers 12-bit grayscale PWM control and 6-bit dot correction for precise brightness adjustments.

✓ Total Stock: 46,697 pcs

$ Price Range: $0.17

TLC5940NT Available from 3 distributors

✓ Authorised

✓ Non-Authorised

Distributor		Stock	Pricing	MOQ	PKG	Lead Time	Date Code	On Order Quantity	On Order Delivery
Romaks Technologies ✓ Non-Authorised Inventory information	40,178 pcs On Request	40178 pcs	On Request	1	On Request	On Request	On Request	On Request	On Request
Optech Co.,Limited ✓ Non-Authorised Inventory information	5,744 pcs On Request	5744 pcs	On Request	1	On Request	On Request	09+	On Request	On Request
Smaxon Electronics ✓ Non-Authorised Inventory information	775 pcs On Request	775 pcs	On Request	1	On Request	On Request	09+	On Request	On Request

TLC5940NT Description

Short technical summary and product information.

The TLC5940NT is a versatile 16-channel, constant-current sink LED driver manufactured by Texas Instruments. Each channel provides individually adjustable 4096-step grayscale PWM brightness control and a 64-step constant-current sink for dot correction. This dot correction feature is crucial for minimizing brightness variations between LED channels and other LED drivers, with the correction data stored in an integrated EEPROM.

Designed for flexibility, both grayscale and dot correction are accessible via a serial interface. A single external resistor sets the maximum current for all 16 channels, which can range from 0 mA to 60 mA (at VCC < 3.6 V) or 0 mA to 120 mA (at VCC > 3.6 V). The device supports LED power supply voltages up to 17 V and operates within a VCC range of 3 V to 5.5 V. It features a 30 MHz data transfer rate and includes error detection circuits for LED open detection (LOD) and thermal error flag (TEF).

The TLC5940NT is suitable for various applications including monocolor, multicolor, and full-color LED displays, LED signboards, display backlighting, and general high-current LED drive. It is available in a 28-DIP package and supports through-hole mounting.

Key electrical specifications include a 12-bit grayscale PWM control, 6-bit dot correction, and a maximum output current of 120 mA. The operating temperature range is -40°C to 85°C (TA).

TLC5940NT Quick Information

Product Type: LED Driver

Canonical Name: TLC5940NT 16-Channel LED Driver

Subcategory: LED Driver ICs

TLC5940NT Compliance

RoHS Status: RoHS Compliant

Moisture Sensitivity Level (MSL): 1 Unlimited

REACH Status: REACH Unaffected

TLC5940NT Estimated Pricing

Qty	Low	High
1+	$0.17	$0.17

Estimated market price range - modelled values for guidance only, not live distributor offers.

TLC5940NT Features

16-channel constant-current sink LED driver.
12-bit grayscale PWM control (4096 steps).
6-bit dot correction for brightness consistency.
Maximum output current up to 120 mA.
3V to 5.5V supply voltage range.

TLC5940NT Applications

Ideal for LED displays and signboards.
Used in display backlighting applications.
Suitable for general high-current LED drive.
Enables monocolor and full-color LED systems.

TLC5940NT FAQs

7 frequently asked questions generated from this part’s specifications.

What is the operating voltage range of the TLC5940NT?

The VCC supply voltage range is 3V to 5.5V.

What is the package type of the TLC5940NT?

28-DIP (28-PDIP) through-hole package.

What is the operating temperature range of the TLC5940NT?

-40°C to 85°C.

How many outputs does the TLC5940NT have?

16 constant-current sink outputs.

What is the maximum current per output?

120mA when VCC > 3.6V, 60mA when VCC < 3.6V.

Does the TLC5940NT have grayscale PWM control?