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Product Detailed Parameters
- Description：IC LED DRIVER LINEAR 35MA 24SSOP
- 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：35mA
- Frequency：35MHz
- Dimming：-
- Applications：-
- Operating Temperature：-40°C ~ 85°C (TA)
- Mounting Type：Surface Mount
- Package / Case：24-SSOP (0.154", 3.90mm Width)
- Supplier Device Package：24-SSOP
- Grade：-
- Qualification：-
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Overview
The TLC5928DBQR is a 16-channel constant-current LED driver IC manufactured by Texas Instruments, housed in a 24-pin QSOP package. It operates on a supply voltage range of 3 V to 5.5 V and delivers an output current of 35 mA per channel. The device utilizes a boost topology with a maximum output voltage of 17 V and supports data transfer rates up to 35 MHz. It functions within a temperature range of -40°C to +85°C and includes features such as LED open detection and ON/OFF control.
Feature Summary
- Provides 16 independent constant-current outputs for precise LED brightness regulation
- Integrates LED open detection circuitry for fault monitoring and system reliability
- Supports serial data input via standard shift register interface for efficient control
Applications
- LED lighting driver circuits requiring constant current regulation
- Portable electronic devices utilizing low-voltage power supplies
- General-purpose LED display systems
Procurement Notes
Verify the specific suffix 'DBQR' corresponds to the QSOP-24 package and reel packaging configuration. Confirm that the 35 mA output current specification aligns with the target application requirements. Ensure compatibility with the 3 V to 5.5 V supply voltage range and check for RoHS compliance status before integration into the design.
Selection Notes
Select this component when a 16-channel solution with integrated LED open detection is required. The 35 mA output current suits standard indicator LEDs or low-power arrays. Consider the QSOP-24 package constraints for PCB layout. Compare against variants like TLC59281DBQR if open detection is not needed, or TLC59282DBQR if higher current capacity is necessary.
Part Context
This part belongs to the TLC5928 family of LED drivers from Texas Instruments. The family offers various configurations differing in output current capabilities and diagnostic features. The DBQR variant specifically denotes the surface-mount QSOP package with tape-and-reel delivery, distinguishing it from tube-packaged versions or other package types within the same functional series.
Replacement Considerations
TLC59281DBQR serves as a parameter-equivalent substitute lacking LED open detection. TLC59282DBQR offers a higher 45 mA output current while maintaining similar functionality. Verify pinout compatibility and thermal performance when substituting these alternatives.
