TLC5917IPWRG4

Overview

The TLC5917IPWRG4 is an 8-bit constant-current LED sink driver manufactured by Texas Instruments. It features eight independent output channels capable of sourcing up to 120 mA per channel, with a maximum supply voltage of 5.5 V and a minimum of 3 V. The device operates at frequencies up to 30 MHz and includes comprehensive fault detection capabilities such as open LED, short-to-ground, and short-to-VLED diagnostics via an error flag. Packaged in a TSSOP-16 surface-mount case, it supports an operating temperature range from -40°C to +125°C.

Feature Summary

• Provides eight independent constant-current sink outputs for precise LED control
• Integrates hardware-based fault detection including open circuit and short-circuit monitoring
• Supports high-speed serial data input for efficient daisy-chain configuration

Applications

• LED signage and display systems
• General LED lighting applications
• Portable electronic devices requiring LED indication

Procurement Notes

Verify the specific suffix G4 against the manufacturer's current datasheet to confirm compliance with RoHS directives and environmental standards. Ensure the TSSOP-16 package dimensions match your PCB footprint requirements. Confirm that the thermal dissipation characteristics are sufficient for your intended operating environment, particularly given the extended temperature range specifications.

Selection Notes

Select this component when designing circuits requiring multiple individually addressable LED channels with built-in diagnostic feedback. It is suitable for applications needing robust fault protection without external sensing components. Consider the power dissipation limits relative to the number of active channels and ambient temperature conditions during the design phase.

Part Context

This part belongs to the TLC5917 family of constant-current LED drivers from Texas Instruments. It shares core functional architecture with variants like the TLC5917ID and TLC5917INE4, differing primarily in packaging style and specific manufacturing revisions. The IPWRG4 designation indicates a TSSOP-16 package with specific environmental compliance attributes defined by the manufacturer.

Replacement Considerations

Direct pin-compatible alternatives within the same series include the TLC5917ID and TLC5917QDRQ1. Verify that the substitute part maintains the required TSSOP-16 or equivalent SOIC-Narrow-16 footprint and matches the electrical specifications for current sinking and voltage tolerance.