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Product Detailed Parameters
- Description：IC LED DRIVER LINEAR 30MA 48SSOP
- Series：-
- Mfr：Texas Instruments
- Package：Tube
- Type：Linear
- Topology：Shift Register
- Internal Switch(s)：-
- Number of Outputs：16
- Voltage - Supply (Min)：4.5V
- Voltage - Supply (Max)：5.5V
- Voltage - Output：-
- Current - Output / Channel：30mA
- Frequency：10MHz
- Dimming：-
- Applications：-
- Operating Temperature：-20°C ~ 85°C (TA)
- Mounting Type：Surface Mount
- Package / Case：48-BSSOP (0.295", 7.50mm Width)
- Supplier Device Package：48-SSOP
- Grade：-
- Qualification：-
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Overview
The TLC5920DL is a Texas Instruments LED lighting driver IC featuring 16 constant current outputs. It operates within a supply voltage range of 4.5 V to 5.5 V and supports a maximum clock frequency of 10 MHz. The device provides an output current of 30 mA per channel with adjustable output voltage capabilities. It utilizes Boost and Buck topologies for efficient power management. The component is housed in a 48-SSOP package and functions reliably across a temperature range of -20°C to +85°C.
Feature Summary
- Provides 16 independent constant current channels for precise LED control
- Integrates serial input shift register for simplified data transmission
- Supports external resistor programming for flexible current adjustment
- Includes thermal shutdown protection to ensure operational safety
Applications
- LED backlighting systems for displays
- General LED indicator arrays
- Portable electronic device illumination
- Low-power LED lighting modules
Procurement Notes
Verify the specific suffix against official Texas Instruments documentation to confirm package type and tape/reel specifications. Ensure compatibility with system voltage requirements and thermal constraints. Cross-reference datasheet parameters for current sinking capabilities and operating temperature ranges before integration. Confirm RoHS compliance status through manufacturer declarations.
Selection Notes
Select this component when 16-channel constant current driving is required with serial interface simplicity. Consider the SSOP-48 package size for PCB layout constraints. Evaluate the 30 mA output capability against LED forward current requirements. Verify that the 4.5 V to 5.5 V supply range aligns with the system power architecture.
Part Context
Part of the TLC5920 series, designed for low-cost LED driving applications. Offers a balance between channel count and interface complexity. Commonly used in consumer electronics where space efficiency and reliable current regulation are prioritized over high-speed PWM dimming.
Replacement Considerations
TLC5920DLR (Reel variant)
FAQ
How is the output current adjusted?
The output current is set by connecting an external resistor between the ISET pin and ground.
What is the maximum clock frequency?
The device supports a maximum clock frequency of 10 MHz for data shifting operations.
