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Product Detailed Parameters
- Description：IC LED DRIVER LINEAR 30MA 32VQFN
- Series：-
- Mfr：Texas Instruments
- Package：Tape & Reel (TR),Cut Tape (CT)
- Type：Linear
- Topology：Shift Register
- Internal Switch(s)：Yes
- Number of Outputs：24
- Voltage - Supply (Min)：3V
- Voltage - Supply (Max)：5.5V
- Voltage - Output：30V
- Current - Output / Channel：30mA
- Frequency：4MHz
- Dimming：-
- Applications：Backlight
- 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 TLC5947RHBR is a Texas Instruments LED lighting driver IC featuring 24 constant-current sink channels with 12-bit PWM dimming. It operates on a 3V to 5.5V supply and delivers up to 30mA per channel at output voltages up to 30V. The device utilizes a serial interface for data input and includes an internal GS clock. Packaged in a 32-VQFN (5x5mm) format, it supports surface-mount installation and functions within a temperature range of -40°C to +85°C.
Feature Summary
- Integrates 24-channel constant-current sinks with independent 12-bit PWM control for precise brightness adjustment.
- Features an internal gray-scale clock generator to simplify system timing requirements.
- Includes thermal shutdown protection to maintain operational safety under high-temperature conditions.
Applications
- LED backlighting systems
- General LED illumination circuits
- Display driver modules
Procurement Notes
Verify the specific suffix 'R' indicates reel packaging when sourcing. Confirm RoHS compliance status through official manufacturer documentation. Ensure the VQFN-32 package dimensions match PCB layout constraints. Check moisture sensitivity levels for proper storage and handling procedures prior to assembly.
Selection Notes
Select this component for designs requiring high channel density with individual PWM control. The 30mA output current suits standard indicator and low-power lighting applications. Consider the 32-VQFN package for compact board space. Validate that the 3V to 5.5V supply range aligns with the system power architecture.
Part Context
This part belongs to the TLC5947 series of LED drivers from Texas Instruments. It shares core functionality with variants like the TLC5947RHBT, differing primarily in packaging configuration. The series provides a scalable solution for multi-channel LED control without external clock components.
Replacement Considerations
The TLC5947RHBT serves as a direct alternative with identical electrical specifications but differs in tape-and-reel packaging type. Verify package compatibility before substitution.
