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Product Detailed Parameters
- Description：IC LED DRIVER LINEAR 45MA 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：10V
- Current - Output / Channel：45mA
- 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 TLC59283DBQ is a 16-channel constant-current LED driver IC manufactured by Texas Instruments. It features an internal shift register and serial interface for data input. The device provides linear current sinking with programmable output levels. It operates within a supply voltage range of 3V to 5.5V and supports output voltages up to 17V. Each channel delivers a constant sink current of 35mA at VCC ≤ 3.6V, increasing to 45mA when VCC exceeds 3.6V. The component is housed in a 24-SSOP package and functions across a temperature range of -40°C to +85°C.
Feature Summary
- Integrates a 16-bit serial shift register for direct control of output states without external logic.
Applications
- LED lighting systems requiring constant current regulation
- Portable devices utilizing LED indicators or displays
- General-purpose LED matrix driving
Procurement Notes
Verify the specific suffix 'DBQ' corresponds to the 24-SSOP package variant. Confirm that the required sink current aligns with the datasheet specifications for your operating voltage, as current capability varies between 35mA and 45mA depending on VCC. Ensure compatibility with the 3V to 5.5V supply range for your application design.
Selection Notes
Select this component when a high-density solution for controlling multiple LEDs is required. It is suitable for designs needing independent channel control via a simple serial interface. Consider the thermal performance of the SSOP package if driving currents near the maximum limits. Verify that the 17V output voltage rating meets the forward voltage requirements of the connected LED strings.
Part Context
This part belongs to the TLC5928 family of LED drivers from Texas Instruments. The family includes variants such as the TLC5928, TLC59281, and TLC59282, which share similar core functionalities but may differ in pinouts, packaging, or specific electrical characteristics. The TLC59283 specifically adds features like pre-charge FET control for enhanced LED management.
Replacement Considerations
Publicly confirmed substitute part numbers include TLC59281DBQ, TLC59282DBQ, and TLC59282DBQR. These are listed as parameter-equivalent alternatives by distributors. Verify pinout compatibility and specific current ratings before substitution.
