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Product Detailed Parameters
- Description：IC LED DRIVER LINEAR 80MA 32VQFN
- Series：-
- Mfr：Texas Instruments
- Package：Tube
- Type：Linear
- Topology：Shift Register
- Internal Switch(s)：Yes
- Number of Outputs：16
- Voltage - Supply (Min)：3V
- Voltage - Supply (Max)：5.5V
- Voltage - Output：17V
- Current - Output / Channel：80mA
- Frequency：-
- Dimming：-
- Applications：Backlight, 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 TLC5941RHB is a 16-channel constant-current sink LED driver manufactured by Texas Instruments. It features individually adjustable 4096-step grayscale PWM brightness control and a 64-step DC dimming input for each channel. The device provides an output current of 80 mA per channel with a maximum supply voltage of 32 V. It utilizes a serial interface for data input and operates within a temperature range of -40°C to +85°C. The component is housed in a 32-VQFN (5x5) package.
Feature Summary
- Provides 16 channels of constant-current sinking capability for high-accuracy LED driving.
- Integrates 4096-step individual grayscale PWM control for precise brightness adjustment.
- Supports 64-step DC dimming input for global intensity management across all channels.
Applications
- High-resolution LED display panels requiring precise grayscale control
- Architectural lighting systems with multi-zone dimming requirements
- Automotive interior illumination modules demanding consistent current regulation
Procurement Notes
Verify the specific suffix 'RHB' corresponds to the 32-VQFN package and tape-and-reel configuration when sourcing. Confirm that the manufacturer designation remains Texas Instruments, as distributor listings may vary. Ensure compliance with RoHS standards if required for the specific project environment. Cross-reference the datasheet revision date to guarantee compatibility with existing design specifications.
Selection Notes
Select this component when a linear shift register architecture is preferred for daisy-chaining multiple drivers. The 80 mA constant current rating suits standard high-power LEDs without external heat sinks. Consider the 32-VQFN footprint for compact PCB layouts. Evaluate the serial interface speed against system timing constraints before finalizing the design.
Part Context
This part belongs to the TLC5941 family of LED drivers from Texas Instruments. It shares functional similarities with variants like the TLC5941NT but differs in packaging and surface-mount orientation. The RHB suffix specifically denotes the QFN package variant designed for automated surface-mount assembly processes.
Replacement Considerations
The TLC5941RHBT serves as a direct replacement option, offering identical electrical characteristics and pinout compatibility. Verify that the reel quantity matches production needs when substituting the T suffix version. No functional changes are expected between these package variants.
