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Product Detailed Parameters
- Description：IC LED DRVR LINEAR 120MA 32VQFN
- Series：-
- Mfr：Texas Instruments
- Package：Tape & Reel (TR),Cut Tape (CT)
- Type：Linear
- Topology：Shift Register
- Internal Switch(s)：Yes
- Number of Outputs：16
- Voltage - Supply (Min)：3V
- Voltage - Supply (Max)：5.5V
- Voltage - Output：17V
- Current - Output / Channel：120mA
- Frequency：30MHz
- Dimming：-
- Applications：Backlight, Signage
- 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 TLC59401RHBR is a Texas Instruments LED lighting driver IC featuring 16 constant current outputs. It operates on a 3 V to 5.5 V supply with a maximum output voltage of 17 V and an output current of 120 mA per channel. The device utilizes a boost topology and supports a 30 MHz serial clock frequency. Packaged in a 32-VQFN (5x5 mm) housing, it functions within a temperature range of -40°C to +85°C.
Feature Summary
- Provides independent 12-bit PWM grayscale control for each of the 16 channels
- Integrates an internal GSCLK generator for precise duty cycle regulation
- Features a daisy-chainable serial interface for efficient data transfer
- Includes thermal shutdown protection to ensure operational safety
Applications
- LED backlighting systems
- Signage displays
- General LED illumination
Procurement Notes
Verify the specific suffix 'RHBR' corresponds to the tape and reel packaging configuration when ordering. Confirm that the 32-VQFN footprint matches the target PCB layout. Ensure the design accommodates the required 3 V to 5.5 V supply range and thermal dissipation capabilities for the selected application environment.
Selection Notes
Select this component for applications requiring high-resolution 12-bit grayscale dimming across multiple LEDs. It is suitable for designs needing a compact surface-mount solution with integrated current regulation. Consider the 120 mA output capability and 17 V compliance voltage when determining load configurations.
Part Context
This part belongs to the TLC59401 series of LED drivers from Texas Instruments. It shares functional similarities with other members like the TLC59401PWPR but differs in package type. The RHBR variant specifically denotes the VQFN package format optimized for space-constrained printed circuit board assemblies.
Replacement Considerations
The TLC59401PWPR serves as a pin-compatible alternative offering the same electrical specifications in a TSSOP-28 package. Verify that the physical dimensions and thermal characteristics of the replacement package align with the existing mechanical constraints.
