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Product Detailed Parameters
- Description：IC LED DRIVER LINEAR 35MA 24SSOP
- Series：-
- Mfr：Texas Instruments
- Package：Tube
- 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 TLC59281DBQ is a linear LED driver IC manufactured by Texas Instruments, housed in a 24-SSOP package. It provides sixteen constant-current outputs with a channel current of 35mA. The device operates on a supply voltage ranging from 3V to 5.5V and supports an output voltage up to 17V. It features a shift register topology for data input and functions within a temperature range of -40°C to +85°C.
Feature Summary
- Provides sixteen independent constant-current channels for LED control
- Integrates internal switches for direct LED connection
- Utilizes serial shift register interface for data transfer
- Supports dimming functionality via the input interface
Applications
- LED lighting systems requiring constant current regulation
- General-purpose LED indicator arrays
- Portable electronic devices with limited power budgets
Procurement Notes
Verify the specific suffix 'DBQ' confirms the 24-SSOP surface-mount package variant. Ensure compatibility with the required operating temperature range of -40°C to +85°C. Confirm that the design does not require LED open detection, as this specific part lacks that feature compared to other family members. Check RoHS compliance status for environmental regulations.
Selection Notes
Select this component when sixteen constant-current outputs are needed without LED open detection capabilities. It is suitable for applications where a linear driver topology is preferred over switching converters. Consider the 35mA per channel limit and the 24-SSOP footprint during PCB layout. Verify that the serial interface timing meets the system's clock requirements.
Part Context
This part belongs to the TLC5928 family of LED drivers. Unlike the standard TLC5928 which includes LED open detection, the TLC59281 variant omits this diagnostic feature. Both share similar electrical characteristics but differ in fault detection capabilities. The DBQ suffix specifically denotes the SSOP package type used in this configuration.
Replacement Considerations
TLC5928DBQ serves as a parameter-equivalent substitute, differing primarily by the inclusion of LED open detection features.
