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Product Detailed Parameters
- Description：IC LED DRIVER LINEAR 60MA 32VQFN
- Series：-
- Mfr：Texas Instruments
- Package：Tape & Reel (TR),Cut Tape (CT)
- Type：Linear
- Topology：Shift Register
- Internal Switch(s)：Yes
- Number of Outputs：16
- Voltage - Supply (Min)：3V
- Voltage - Supply (Max)：5.5V
- Voltage - Output：3V ~ 15V
- Current - Output / Channel：60mA
- Frequency：30MHz
- Dimming：-
- Applications：Signage
- Operating Temperature：-40°C ~ 85°C (TA)
- Mounting Type：Surface Mount
- Package / Case：32-VFQFN Exposed Pad
- Supplier Device Package：32-VQFN (5x5)
- Grade：-
- Qualification：-
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Overview
The TLC5944RHBT is a 16-channel, 12-bit PWM LED driver manufactured by Texas Instruments in a VQFN-32 package. It operates within a supply voltage range of 3V to 5.5V and supports a maximum operating frequency of 30MHz. The device provides an output current of 120mA per channel with a boost topology capable of reaching 17V output voltage. It functions reliably across a temperature range of -40°C to +85°C.
Feature Summary
- Integrates 12-bit grayscale PWM control for precise brightness regulation across all channels.
- Includes 6-bit dot correction capability to ensure uniform luminance among individual LEDs.
- Features an internal pre-charge FET to manage external inductive loads efficiently.
Applications
- High-density LED matrix displays
- Backlighting systems for portable electronics
- General-purpose LED lighting arrays
Procurement Notes
Verify the specific suffix RHBT corresponds to the VQFN-32 tape-and-reel packaging configuration. Confirm that the component meets RoHS compliance standards required for your assembly process. Ensure the ordering quantity aligns with the manufacturer's standard reel sizes to avoid partial reel handling issues during production.
Selection Notes
Select this component when 16 independent channels with high-resolution grayscale control are required. The integrated dot correction simplifies hardware design by reducing the need for external calibration circuits. Consider the thermal performance of the VQFN-32 package if multiple channels operate at maximum current simultaneously.
Part Context
This part belongs to the TLC594x series of LED drivers from Texas Instruments. It shares architectural similarities with other members like the TLC59401 but offers enhanced features such as dot correction. The series is designed for applications requiring precise LED intensity management without complex microcontroller overhead.
Replacement Considerations
Public confirmed substitute part numbers are not available in the provided documentation. Verify compatibility with existing PCB footprints and software drivers before considering alternative components from other manufacturers.
