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Product Detailed Parameters
- Description：IC LED DRIVER LINEAR NO 24VQFN
- Series：-
- Mfr：Texas Instruments
- Package：Tape & Reel (TR),Cut Tape (CT)
- Type：Linear
- Topology：Constant Current
- Internal Switch(s)：Yes
- Number of Outputs：16
- Voltage - Supply (Min)：3V
- Voltage - Supply (Max)：5.5V
- Voltage - Output：0V ~ 5.5V
- Current - Output / Channel：-
- Frequency：-
- Dimming：No
- Applications：LED Lighting
- Operating Temperature：-40°C ~ 85°C (TA)
- Mounting Type：Surface Mount
- Package / Case：24-VFQFN Exposed Pad
- Supplier Device Package：24-VQFN (4x4)
- Grade：-
- Qualification：-
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Overview
The TLC6946RGER is a 16-channel, 16-bit ES-PWM constant-current LED driver manufactured by Texas Instruments. It features 32 multiplexing capabilities and operates within a supply voltage range of 3 V to 5.5 V. The device supports an operating frequency of 33 MHz and provides a low-level output current of 2 mA. It is housed in a 24-pin VQFN (RGE) package with dimensions of 4x4 mm. The component functions reliably across a temperature range of -40 °C to 85 °C.
Feature Summary
- Integrates 16-bit enhanced serial pulse-width modulation for precise constant-current control across 16 channels.
- Supports 32 multiplexing modes to reduce pin count and simplify PCB layout for high-density displays.
- Includes internal gray scale clock generation to minimize external component requirements.
Applications
- High-resolution LED display panels
- Video wall systems requiring precise color consistency
- Digital signage applications
Procurement Notes
Verify the specific suffix RGE confirms the VQFN-24 package variant when sourcing. Ensure compatibility with the required 3 V to 5.5 V supply range and 33 MHz interface speed. Confirm moisture sensitivity level 3 handling procedures are followed during assembly to maintain device integrity.
Selection Notes
Select this component for designs requiring high channel counts with minimal I/O usage due to its 32-multiplexing capability. It is suitable for applications demanding accurate grayscale rendering via 16-bit resolution. Consider the thermal performance of the VQFN package for enclosed environments.
Part Context
This part belongs to the Texas Instruments TLC6946 series of LED drivers. It shares functional similarities with the TLC6948 but offers distinct multiplexing options. The RGE suffix specifically denotes the small outline quad flat no-lead package configuration used in space-constrained electronics.
Replacement Considerations
The TLC6946DBQR serves as a direct pin-compatible alternative using a different SSOP package. Verify that the package dimension changes do not impact the mechanical constraints of the target design before substitution.
