KTA1142EUAT-TB

$3.94

Description：7ARMS VBUS PROTECTION LOAD
Series：-
Mfr：Kinetic Technologies
Package：Tape & Reel (TR),Cut Tape (CT)

SKU:1204a79ad237 Category: Power Over Ethernet (PoE) Controllers Brand: Kinetic Technologies

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Product introduction

Product Detailed Parameters

Description：7ARMS VBUS PROTECTION LOAD
Series：-
Mfr：Kinetic Technologies
Package：Tape & Reel (TR),Cut Tape (CT)
Type：Power Management
Number of Channels：-
Power - Max：-
Internal Switch(s)：-
Auxiliary Sense：-
Standards：-
Voltage - Supply：-
Current - Supply：-
Operating Temperature：-
Mounting Type：-
Package / Case：-
Supplier Device Package：-

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KTA1142EUAT-TB

Overview

The KTA1142EUAT-TB is a Powered Device (PD) power switch IC designed for PoE and LAN applications. It features seven independent channels with a maximum current limit of 1 A per channel. The device operates at a supply voltage of 48 V and includes an integrated 7A RMS VBUS protection load switch. Key electrical parameters include a maximum on-resistance of 200 mOhms and a typical operating supply current of 20 mA. It supports a wide operating temperature range from -40°C to +125°C and is housed in a WQFN44-32 surface-mount package.

Feature Summary

Integrates seven independent power switch channels for multi-port PoE powered devices
Includes built-in 7A RMS VBUS protection load switch for enhanced port safety
Supports high-temperature operation up to +125°C for robust industrial environments

Applications

Multi-port Power over Ethernet (PoE) Powered Devices
LAN interface power distribution circuits
Industrial networking equipment requiring high thermal stability

Procurement Notes

Verify the specific suffix TB against the manufacturer's official datasheet to confirm packaging and reel specifications. Ensure compatibility with the target PCB footprint, specifically the WQFN44-32 package dimensions. Cross-reference the RoHS status and lead-free requirements with current regulatory standards before finalizing procurement orders.

Selection Notes

Select this component when designing systems requiring multiple isolated power outputs from a single PoE input. The 1 A current limit per channel suits moderate-power loads. Consider the 200 mOhm on-resistance for efficiency calculations. The wide temperature range makes it suitable for harsh environments where standard commercial grade parts may fail.

Part Context

This part belongs to the Kinetic Technologies KTA1142 series, specialized for PoE/LAN power switching. It differs from single-channel controllers like the KTA1137 by offering multi-channel integration. Unlike bridge rectifiers such as the KTA1170, it focuses on downstream power distribution rather than input rectification.