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Product Detailed Parameters
- Description：IC LED DRVR LINEAR 120MA 20VQFN
- Series：-
- Mfr：Texas Instruments
- Package：Tape & Reel (TR),Cut Tape (CT)
- Type：Linear
- Topology：-
- Internal Switch(s)：Yes
- Number of Outputs：8
- Voltage - Supply (Min)：3V
- Voltage - Supply (Max)：5.5V
- Voltage - Output：17V
- Current - Output / Channel：120mA
- Frequency：25MHz
- Dimming：-
- Applications：-
- Operating Temperature：-40°C ~ 85°C (TA)
- Mounting Type：Surface Mount
- Package / Case：20-VFQFN Exposed Pad
- Supplier Device Package：20-VQFN (3.5x4.5)
- Grade：-
- Qualification：-
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Overview
The TLC59108IRGYR is an LED lighting driver IC from Texas Instruments, housed in a 20-VQFN package. It features eight constant current sink outputs capable of delivering up to 120 mA per channel. The device utilizes a boost topology with an internal switch and supports Fast-Mode Plus I2C bus control. Operating on a supply voltage range of 3 V to 5.5 V, it achieves output voltages up to 17 V. The component operates within a temperature range of -40°C to +85°C and includes PWM dimming capabilities.
Feature Summary
- Eight-channel constant current sink architecture for precise LED regulation
- Fast-Mode Plus I2C interface for digital control and data transmission
- Integrated boost converter topology enabling high-voltage LED driving
- Supports linear and PWM dimming methods for brightness adjustment
Applications
- LED backlighting systems for displays and monitors
- General LED illumination modules requiring multi-channel control
- Portable electronic devices with space-constrained LED arrays
- Industrial indicator lighting circuits
Procurement Notes
Verify the specific suffix IRGYR corresponds to the 20-VQFN package variant when sourcing. Confirm RoHS compliance status as indicated by manufacturer documentation. Ensure I2C bus speed requirements align with Fast-Mode Plus specifications during integration. Cross-reference the part number against official Texas Instruments databases to avoid counterfeit components. Validate thermal performance parameters for the intended operating environment.
Selection Notes
Select this component when eight independent constant current channels are required for LED control. The integrated boost topology eliminates external inductor requirements for high-side LED configurations. Choose the VQFN package for applications demanding compact surface-mount footprints. Ensure the system power supply remains within the 3 V to 5.5 V input range. Verify that the I2C address configuration meets the design constraints for multi-device addressing.
Part Context
This device belongs to the TLC59108 series of LED drivers from Texas Instruments. It shares functional similarities with other members like the TLC59108IPWR but differs in packaging. The series provides standardized I2C control for multi-channel LED applications. It complements other Texas Instruments PMIC solutions for comprehensive power management in display systems.
Replacement Considerations
The TLC59108FIRGYR is a confirmed public substitute offering identical electrical characteristics and pinout compatibility. Both variants share the same 20-VQFN package and functional specifications. Verify that any alternative sources maintain the same Fast-Mode Plus I2C interface support.
