ChipApex | Global Electronic Components Supplier
SEARCH
Search Product
Search Post
— IC芯片 | 连接器 | 传感器 | 被动器件 —
Consult the customer manager about the wholesale price.
consultation hotline：86-132-6715-2157
email：[email protected]
Contact the product manager for consultation. One-stop consultation is available.
Do you want a lower wholesale price? Please send us your inquiry and we will reply immediately.
Product Detailed Parameters
- Description：IC LED DRV LIN 24.4/34.9MA 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)：3.6V
- Voltage - Output：10V
- Current - Output / Channel：24.4mA, 34.9mA
- 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：-
Download product information
Overview
The TLC5954RTQR is a Texas Instruments LED lighting driver IC featuring 48 constant current outputs in a QFN-56 package. It utilizes a boost topology with an input voltage range of 3 V to 3.6 V. The device supports a maximum operating frequency of 30 MHz and delivers output voltages up to 10 V. Channel currents are specified at 24.4 mA and 34.9 mA. It operates within a temperature range of -40°C to +85°C.
Feature Summary
- Integrates 48 channels of constant current regulation for uniform LED brightness control.
- Employs a boost converter topology to manage higher voltage requirements from lower supply rails.
- Includes diagnostic capabilities such as error flagging, fault detection, and open/short circuit monitoring.
Applications
- LED backlighting systems
- General LED illumination arrays
- Signage displays
Procurement Notes
Verify the specific suffix 'RTQR' against the manufacturer's official datasheet to confirm the exact reel quantity and tape specifications. Ensure the component matches the required RoHS compliance status and moisture sensitivity level (MSL) ratings for your assembly process. Cross-reference the ordering number with authorized distributors to validate authenticity and traceability before purchase.
Selection Notes
Select this component when designing circuits requiring high-density LED driving with integrated boost conversion. It is suitable for applications needing precise current regulation across multiple channels without external power switches. Consider the thermal performance of the QFN-56 package and the 3.6 V maximum supply limit during system architecture planning.
Part Context
This part belongs to the TLC5954 series of LED drivers from Texas Instruments. It is designed specifically for lighting applications where space efficiency and channel count are critical. The RTQR suffix indicates a specific tape-and-reel packaging configuration intended for automated surface-mount assembly processes.
Replacement Considerations
Public confirmed substitute part numbers are not available in the provided documentation. Verify compatibility with existing PCB footprints and firmware if considering alternative models from the same family or different manufacturers.
