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Product Detailed Parameters
- Description：48 CURRENT SOURCES, 64 SCANS, CO
- Series：-
- Mfr：Texas Instruments
- Package：Tape & Reel (TR),Cut Tape (CT)
- Type：Linear
- Topology：-
- Internal Switch(s)：Yes
- Number of Outputs：48
- Voltage - Supply (Min)：2.5V
- Voltage - Supply (Max)：5.5V
- Voltage - Output：-
- Current - Output / Channel：20mA
- Frequency：-
- Dimming：No
- Applications：General Purpose
- Operating Temperature：-40°C ~ 85°C (TA)
- Mounting Type：Surface Mount
- Package / Case：76-VFQFN Exposed Pad
- Supplier Device Package：76-VQFN (9x9)
- Grade：-
- Qualification：-
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Overview
The TLC6984RRFR is a Texas Instruments LED display driver featuring 48 constant current sources and support for 64 scan lines in a common cathode matrix configuration. It utilizes a VQFN (RRF) package with 76 pins, operating within a temperature range of -40°C to 85°C. The device accepts SPI interface commands and provides separate power supply domains: VCC and VR/G/B, both ranging from 2.5 V to 5.5 V. Each output source delivers a linear current of 20 mA without dimming capabilities.
Feature Summary
- Supports 48 independent constant current sources for high-density LED matrices
- Enables 64-scan line operation for common cathode displays
- Features separated VCC and VR/G/B power supply domains
- Integrates SPI serial interface for command and data transmission
Applications
- Common cathode matrix LED display systems
- High-density LED signage drivers
- Multi-zone LED indicator panels
Procurement Notes
Verify the specific suffix RRF confirms the VQFN-76 package and tape-and-reel delivery format. Ensure the design accommodates the separate VCC and VR/G/B voltage requirements. Confirm thermal management meets the -40°C to 85°C operational range. Validate that the host controller supports the required SPI frame format for CCSI transmission.
Selection Notes
Select this component when driving large common cathode LED matrices requiring 48 outputs and 64 scan lines. It is suitable for applications needing separate color and logic power supplies. Consider the VQFN-76 footprint for space-constrained designs. Verify compatibility with the host microcontroller's SPI interface and voltage levels before integration.
Part Context
The TLC6984 belongs to Texas Instruments' family of LED display drivers designed for complex matrix configurations. It addresses the need for high-channel count drivers in professional display applications. The RRFR variant specifically denotes the reel packaging and VQFN form factor, distinguishing it from other pinout or package options within the same functional series.
Replacement Considerations
Direct substitutes within the same family include the TLC6984DYYR, though it differs in package type. Cross-reference pinouts and electrical characteristics carefully. No other TI part offers identical 48-source/64-scan architecture in a different package without redesigning the PCB layout.
