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TI产品 - TPD4S1394介绍

TPD4S1394 - 具有带电插入检测电路的 Firewire ESD 钳位

TPD4S1394是TI德州仪器公司的一款集成ESD保护产品，TPD4S1394是具有带电插入检测电路的 Firewire ESD 钳位，本站介绍了TPD4S1394的封装应用图解、特点和优点、功能等，并给出了与TPD4S1394相关的TI元器件型号供参考。

TPD4S1394 - 具有带电插入检测电路的 Firewire ESD 钳位 - 集成ESD保护 - ESD保护二极管 - 德州仪器

产品描述

The TPD4S1394 provides robust system level ESD solution for the IEEE.1394 port along with a live insertion detection mechanism for high-speed lines interfacing a low-voltage, ESD sensitive core chipset. This device protects and monitors up to two differential input pairs. The optimized line capacitance allows to protect the data lines with data rate in excess of 1.6 GHz without degrading signal integrity.

The TPD4S1394 incorporates a live insertion circuit whose output state changes when improper voltage levels are present on the input data lines. The FWPWR_EN signal controls an external FireWire port power switch. During the live insertion event if there is a floating GND or a high level signal at the D+, D– pins, the internal comparator will detect the changes and pull the FWPWR_EN signal to low state. When FWPWR_EN is driven low, there is an internal delay mechanism preventing it from being driven to the high state regardless of the inputs to the comparator.

Additionally, the TPD4S1394 performs ESD protection on the four inputs pins: D1+, D1–, D2+, and D2–. The TPD4S1394 conforms to the IEC61000-4-2 (Level 4) ESD protection and ±15 kV HBM ESD protection. The TPD4S1394 is characterized for operation over ambient air temperature of –40°C to 85°C.

A 0.1µF decoupling capacitor is required at VCC (pin1)

产品特性

  • IEEE1394 Live Insertion Protection
  • Exceeds ESD protection to IEC61000-4- 2 (Level 4)
    • ±15-kV Human-Body Model (HBM)
    • ±6-kV IEC 61000-4-2 Contact Discharge
  • 4-Channel Matching ESD Clamps for High-Speed Differential Lines
  • Flow-Through, Single-in-Line Pin Mapping Simplifies Board Layout
  • Available in an 8-Pin X2SON (DQL) package
  • APPLICATIONS
    • IEEE 1394 Live Insertion Protection

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