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TPD4S1394_14

更新时间： 2024-11-17 02:58:47
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德州仪器 - TI /
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ESD CLAMP WITH LIVE-INSERTION DETECTION CIRCUIT

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TPD4S1394_14 数据手册

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TPD4S1394  
www.ti.com  
SLVSA55 –NOVEMBER 2009  
FIREWIRE ESD CLAMP WITH LIVE-INSERTION DETECTION CIRCUIT  
Check for Samples: TPD4S1394  
1
FEATURES  
DESCRIPTION  
•
IEEE1394 Live Insertion Protection  
•
Exceeds ESD protection to IEC61000-4- 2  
(Level 4)  
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.  
–
–
±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  
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.  
Available in an 8-Pin X2SON (DQL) package  
APPLICATIONS  
•
IEEE 1394 Live Insertion Protection  
DQL PACKAGE  
(TOP VIEW)  
1
2
3
4
8
7
6
5
V
D1+  
D1–  
D2+  
D2–  
CC  
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.  
GND  
V
CMLP  
FWPWR_EN  
A 0.1uF decoupling capacitor is required at VCC  
(pin1)  
ORDERING INFORMATION  
ORDERABLE  
PART NUMBER  
TOP-SIDE  
MARKING  
TA  
PACKAGE(1) (2)  
NOMINAL DIMENSIONS (mm)  
–40°C to 85°C SON – DQL  
Reel of 3000  
W = 1.4, L = 2.0, H = 0.4, Pitch = 0.5  
TPD4S1394DQLR  
5JR  
(1) Package drawings, thermal data, and symbolization are available at www.ti.com/packaging.  
(2) For the most current package and ordering information, see the Package Option Addendum at the end of this document, or see the TI  
website at www.ti.com.  
1
Please be aware that an important notice concerning availability, standard warranty, and use in critical applications of Texas  
Instruments semiconductor products and disclaimers thereto appears at the end of this data sheet.  
PRODUCTION DATA information is current as of publication date.  
Copyright © 2009, Texas Instruments Incorporated  
Products conform to specifications per the terms of the Texas  
Instruments standard warranty. Production processing does not  
necessarily include testing of all parameters.  
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