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Product Detailed Parameters
- Description：IC LED DRIVER LINEAR 25MA 56QFN
- Series：-
- Mfr：Texas Instruments
- Package：Tape & Reel (TR),Cut Tape (CT)
- Type：Linear
- Topology：Shift Register
- Internal Switch(s)：Yes
- Number of Outputs：48
- Voltage - Supply (Min)：3V
- Voltage - Supply (Max)：5.5V
- Voltage - Output：10V
- Current - Output / Channel：25mA
- Frequency：-
- Dimming：-
- Applications：Signage
- Operating Temperature：-40°C ~ 85°C (TA)
- Mounting Type：Surface Mount
- Package / Case：56-VFQFN Exposed Pad
- Supplier Device Package：56-QFN (8x8)
- Grade：-
- Qualification：-
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Overview
The TLC5958RTQT is a 48-channel constant-current sink driver designed for multiplexing systems with duty ratios from 1 to 32. It features 16-bit ES-PWM dimming, providing 65,536 intensity levels per channel. The device includes a pre-charge FET, LED open/short detection, and fault flags. Operating voltage ranges from 3V to 5.5V, with an output voltage up to 10V. It is housed in a 56-VFQFN package and operates between -40°C and +85°C.
Feature Summary
- Supports 16-bit ES-PWM dimming with individually adjustable intensity levels
- Integrates pre-charge FET for efficient LED driving
- Provides hardware-based LED open and short circuit detection
- Includes global brightness control and color brightness control capabilities
Applications
- LED display panels
- Signage applications
- Multiplexed lighting systems
Procurement Notes
Verify the specific suffix RTQT against official Texas Instruments documentation to confirm the reel packaging configuration. Ensure the ordering part number matches the required tape-and-reel specifications. Confirm RoHS compliance status through the manufacturer's current datasheet or product change notification records prior to final procurement decisions.
Selection Notes
Select this component when a high-density LED driver with precise grayscale control is required. The 48-channel capacity suits large displays. Verify that the system design supports the 16-bit PWM resolution. Ensure the application environment remains within the specified temperature range. Check compatibility with the host controller's serial interface requirements for data loading.
Part Context
This part belongs to the Texas Instruments TLC5958 family of LED drivers. It is functionally similar to the TLC59581 variant but may differ in specific electrical characteristics or pin configurations. The RTQT suffix indicates a specific reel quantity and packaging format provided by the manufacturer for surface-mount assembly processes.
Replacement Considerations
- TLC5958RTQR
FAQ
What is the maximum output voltage supported by the TLC5958RTQT?
The device supports an output voltage up to 10V.
Does the TLC5958RTQT include protection against LED faults?
Yes, it features dedicated LED open and short detection capabilities along with error flag outputs.
