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Product Detailed Parameters
- Description：IC LED DRIVER LINEAR DIE
- Series：-
- Mfr：Texas Instruments
- Package：Tube
- Type：Linear
- Topology：-
- Internal Switch(s)：-
- Number of Outputs：24
- Voltage - Supply (Min)：3V
- Voltage - Supply (Max)：5.5V
- Voltage - Output：-
- Current - Output / Channel：-
- Frequency：-
- Dimming：-
- Applications：Signage
- Operating Temperature：-
- Mounting Type：-
- Package / Case：Die
- Supplier Device Package：Die
- Grade：-
- Qualification：-
Download product information
Overview
The TLC5951TDA3 is a 24-channel constant-current LED sink driver manufactured by Texas Instruments. It features individual 12-bit grayscale PWM control for each channel, allowing precise brightness adjustment. The device includes a 4096-step grayscale and 16-brightness global dimming capability. It utilizes a serial interface for data input and supports multiple output voltage ranges. The TDFN package provides thermal efficiency suitable for compact designs.
Feature Summary
- Provides independent 12-bit grayscale PWM control per channel
- Supports global dimming with 16 selectable brightness levels
- Features a serial interface for simplified data transmission
- Integrates constant-current sinks for direct LED driving
Applications
- LED backlighting for mobile devices
- General-purpose LED illumination systems
- Display panel bias circuits
- Portable electronic device lighting
Procurement Notes
Verify the specific suffix 'A3' indicates the correct tape and reel packaging configuration as defined in the manufacturer's ordering information. Confirm that the operating temperature range and pinout compatibility match your PCB layout requirements before finalizing procurement decisions.
Selection Notes
Select this component when high-resolution grayscale control is required for LED arrays. Ensure the system design accommodates the serial clock speeds and current sinking capabilities specified in the electrical characteristics table. Verify power supply constraints align with the device's maximum voltage ratings.
Part Context
This part belongs to the TLC595x family of LED drivers, which are designed for applications requiring multiple channels of constant-current control. The TLC5951 variant specifically offers 24 channels, distinguishing it from lower or higher channel count siblings within the same product line.
Replacement Considerations
Consult official substitution guides for compatible parts. Direct replacements must maintain identical pinouts and electrical specifications. Verify functional equivalence through cross-reference documentation provided by the manufacturer.
