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Product Detailed Parameters
- Description：IC LED DRVR LINEAR 120MA 16SOIC
- Series：-
- Mfr：Texas Instruments
- Package：Tape & Reel (TR)
- Type：Linear
- Topology：Shift Register
- Internal Switch(s)：Yes
- Number of Outputs：8
- Voltage - Supply (Min)：3V
- Voltage - Supply (Max)：5.5V
- Voltage - Output：20V
- Current - Output / Channel：120mA
- Frequency：30MHz
- Dimming：-
- Applications：Signage
- Operating Temperature：-40°C ~ 125°C (TA)
- Mounting Type：Surface Mount
- Package / Case：16-SOIC (0.154", 3.90mm Width)
- Supplier Device Package：16-SOIC
- Grade：-
- Qualification：-
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Overview
The TLC5917IDRG4 is an 8-channel constant-current LED sink driver manufactured by Texas Instruments. It operates within a supply voltage range of 3 V to 5.5 V and supports a maximum switching frequency of 30 MHz. Each output channel delivers up to 120 mA of current, with a maximum output voltage capability of 20 V. The device features integrated fault detection mechanisms, including open LED, short-to-ground, and short-to-VLED diagnostics. It is housed in a 16-pin SOIC package and functions across a temperature range of -40°C to +125°C.
Feature Summary
- Provides eight independent constant-current outputs for precise LED control
- Integrates comprehensive fault detection for open circuits and shorts
- Supports high-speed serial data input for efficient daisy-chaining
Applications
- LED signage systems
- General LED lighting applications
- Display backlighting modules
Procurement Notes
Verify the specific ordering suffix 'RG4' corresponds to the tape-and-reel packaging configuration required for your assembly process. Confirm that the industrial temperature grade (-40°C to +125°C) meets your environmental operating requirements. Ensure the 16-SOIC footprint matches your PCB design guidelines before finalizing procurement.
Selection Notes
Select this component when eight individually controllable constant-current sinks are required. It is suitable for designs needing integrated fault protection without external sensing components. Consider the 30 MHz interface speed if high refresh rates or long daisy-chain configurations are necessary for the target application.
Part Context
This part belongs to the TLC5916/5917 family of LED drivers from Texas Instruments. While sharing similar functionality, the TLC5917 specifically includes VLED short detection capabilities not present in all variants. It serves as a linear shift-register dimming solution for multi-segment LED arrays.
Replacement Considerations
The TLC5917ID is a pin-compatible alternative available in a tube package instead of the reel format. Verify that the functional specifications remain identical for your specific circuit requirements before substituting.
