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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 TLC59281DBQR is a Texas Instruments LED driver IC featuring 16 constant-current outputs in a 24-SSOP package. It operates on a 3V to 5.5V supply with a 35MHz clock frequency and 17V output voltage capability. Each channel delivers 35mA using linear topology and shift register control. The device supports PWM dimming, functions within -40°C to 85°C, and lacks LED open detection.
Feature Summary
- Provides sixteen independent constant-current channels for uniform LED illumination
- Integrates serial shift register interface for simplified data input and control
- Supports pulse-width modulation dimming for adjustable brightness levels
Applications
- LED backlighting systems
- General LED lighting fixtures
- Signage displays
- Indicator arrays
Procurement Notes
Verify the specific suffix DBQR confirms the tape-and-reel packaging format required for automated assembly processes. Ensure the component matches the 24-SSOP physical dimensions and pinout specifications. Confirm RoHS compliance status aligns with environmental regulations. Validate that the absence of LED open detection features meets the design requirements without requiring external monitoring circuits.
Selection Notes
Select this part when sixteen constant-current outputs are needed without fault detection capabilities. Compare against TLC5928 variants if LED open detection is required. Consider thermal dissipation limits due to linear regulation. Verify compatibility with system voltage ranges and clock frequencies. Evaluate package size constraints against available PCB real estate.
Part Context
This component belongs to the TLC5928 family of LED drivers from Texas Instruments. It shares the core architecture with other members like the TLC5928 and TLC59282 but differs in specific feature sets such as the exclusion of open-circuit detection. The family targets applications requiring multiple channels with precise current control.
Replacement Considerations
TLC59281DBQ serves as a tube-packaged equivalent. TLC59282DBQR offers similar functionality with added LED open detection features.
