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Product Detailed Parameters
- Description：IC LED DRVR LINEAR 120MA 16TSSOP
- Series：-
- Mfr：Texas Instruments
- Package：Tube
- 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-TSSOP (0.173", 4.40mm Width)
- Supplier Device Package：16-TSSOP
- Grade：-
- Qualification：-
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Overview
The TLC5917IPW is an eight-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 delivers up to 120 mA per channel. The device features a boost topology with a maximum output voltage of 20 V and supports a clock frequency of 30 MHz. Packaged in a TSSOP-16, it includes thermal shutdown protection and functions across an extended temperature range from -40°C to +125°C.
Feature Summary
- Provides eight independent constant-current channels for precise LED brightness control
- Integrates internal boost converter to drive LEDs at voltages higher than the supply rail
- Includes thermal shutdown circuitry to protect the device during overtemperature conditions
Applications
- LED backlighting systems
- General LED illumination applications
- Portable electronic display modules
Procurement Notes
Verify the specific suffix IPW corresponds to the TSSOP-16 package variant when sourcing. Confirm that the required operating temperature range aligns with the industrial specification limits. Ensure the design accommodates the necessary external components for the boost topology as defined in the official datasheet electrical characteristics.
Selection Notes
Select this component for designs requiring multiple constant-current outputs without external current-setting resistors. Consider the TSSOP-16 package constraints regarding thermal dissipation and board space. Evaluate the 20 V output limit against the total forward voltage of the connected LED string to ensure proper regulation.
Part Context
This part belongs to the TLC5917 series of LED drivers. It shares functional similarities with other members like the TLC5917ID but differs in physical packaging. The ID variant utilizes a SOIC-Narrow-16 package, whereas the IPW version is housed in a TSSOP-16 footprint, affecting PCB layout requirements.
Replacement Considerations
The TLC5917ID serves as a direct pin-compatible alternative offering identical electrical performance in a different package format.
