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Product Detailed Parameters
- Description：AUTOMOTIVE, 48-CHANNEL, 100MA, F
- Series：-
- Mfr：Texas Instruments
- Package：Tape & Reel (TR)
- Type：Linear
- Topology：Constant Current
- Internal Switch(s)：No
- Number of Outputs：48
- Voltage - Supply (Min)：3V
- Voltage - Supply (Max)：5.5V
- Voltage - Output：16V
- Current - Output / Channel：100mA
- Frequency：33MHz
- Dimming：Analog, PWM
- Applications：Automotive
- Operating Temperature：-40°C ~ 125°C (TA)
- Mounting Type：Surface Mount
- Package / Case：56-PowerTFSOP (0.240", 6.10mm Width)
- Supplier Device Package：56-HTSSOP
- Grade：Automotive
- Qualification：AEC-Q100
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Overview
The TLC69638QDCARQ1 is an automotive-grade LED driver IC featuring 48 constant current sink channels. It supports up to 100 mA output current per channel with 16-bit individual pixel-level PWM control. The device operates within a supply voltage range of 3 V to 5.5 V and delivers outputs up to 16 V. It is housed in a 56-pin HTSSOP package and meets AEC-Q100 Grade 1 standards for operation between -40°C and +125°C.
Feature Summary
- Provides 48 independent constant current sink channels for high-density LED arrays
- Enables precise 16-bit grayscale control for individual pixel dimming applications
- Complies with AEC-Q100 Grade 1 qualification for robust automotive reliability
Applications
- Automotive exterior lighting systems requiring multi-channel control
- Interior ambient lighting configurations with high channel counts
- Digital matrix headlamp implementations needing individual pixel management
Procurement Notes
Verify the specific suffix DCAR matches the required HTSSOP-56 package variant. Confirm AEC-Q100 Grade 1 compliance aligns with target thermal operating ranges. Ensure design accounts for humidity sensitivity classification during surface mount assembly processes.
Selection Notes
Select this component when designing systems requiring extensive channel counts without external multiplexing. The integrated 16-bit PWM resolution suits applications demanding high dynamic range. Consider the HTSSOP-56 footprint constraints against available PCB real estate for dense layouts.
Part Context
This part belongs to the Texas Instruments TLC69638-Q1 family, designed specifically for automotive LED driving. It shares functional similarities with other members like the QFN-packaged TLC69638QRTQRQ1 but differs in physical form factor. The series focuses on providing scalable solutions for complex lighting architectures.
Replacement Considerations
The TLC69638QRTQRQ1 serves as a pin-compatible alternative offering identical electrical specifications but utilizes a QFN-56 package instead of HTSSOP-56. Verify mechanical clearance and soldering profile compatibility before substitution.
