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SN65240

更新时间： 2024-11-28 22:42:55
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德州仪器 - TI 瞬态抑制器
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6页 89K
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SINGLE AND DUAL UNIVERSAL SERIAL BUS PORT TRANSIENT SUPPRESSORS

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SN65240 数据手册

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SN65220, SN65240, SN75240  
SINGLE AND DUAL UNIVERSAL SERIAL BUS PORT  
TRANSIENT SUPPRESSORS  
SLLS266C – FEBRUARY 1997 – REVISED MARCH 2000  
SN65220  
SN65240, SN75240  
(Marked as A65240 or A75240)  
P OR PW PACKAGE  
(TOP VIEW)  
Design to Protect Submicron 3-V or 5-V  
Silicon from Noise Transients  
(Marked as SADI)  
DBV PACKAGE  
(TOP VIEW)  
Applicable to Two High- or Low-Speed  
Universal Serial Bus (USB) Host, Hub, or  
Peripheral Ports  
1
2
3
4
8
7
6
5
GND  
C
GND  
D
A
GND  
B
1
2
3
6
5
4
A
NC  
GND  
NC  
Port ESD Protection Capability Exceeds:  
– 15-kV Human Body Model  
– 2-kV Machine Model  
GND  
B
GND  
NC – No internal connection  
Low Current Leakage . . . 1 µA Max  
Stand-Off Voltage . . . 6.0 V Min  
Low Capacitance . . . 35 pF Typ  
schematic  
A or C  
description  
The SN65220 is a single transient voltage  
suppressor and the SN75240 and SN65240 are  
dual transient voltage suppressors designed to  
provide additional electrical noise transient  
protection to two USB ports. Any cabled I/O can  
be subjected to electrical noise transients from  
various sources. These noise transients can  
cause damage to the USB transceiver and/or the  
USB ASIC if they are of sufficient magnitude and  
duration. The USB ports are typically implement-  
ed in 3-V or 5-V digital CMOS with very limited  
ESD protection. The SN65220, SN75240, and  
SN65240 can significantly increase the port ESD  
protection level and reduce the risk of damage to  
the large and expensive circuits of the USB port.  
GND  
B or D  
(One Suppressor Shown)  
NOTE A: All four GND terminals should be connected to ground.  
CURRENT  
vs  
VOLTAGE  
7.5  
The SN75240 is characterized for operation from  
0°C to 70°C. The SN65220 and SN65240 are  
characterized for operation from –40°C to 85°C.  
IEC1000-4-2 ESD performance is measured at  
thesystemlevelandsystemdesigninfluencesthe  
resultsofthesetests. Ahighcompliancelevelmay  
be attained with proper system design.  
5
2.5  
0
IEC1000-4-2 Compliance Test Levels  
–2.5  
–5  
MAXIMUM TEST VOLTAGE  
IEC1000-4-2  
CONTACT  
DISCHARGE  
(kV)  
AIR  
DISCHARGE  
(kV)  
COMPLIANCE  
LEVEL  
–7.5  
–10  
1
2
3
4
2
4
6
8
2
4
8
–30  
–20  
–10  
0
10  
20  
30  
40  
Voltage – V  
15  
NOTE A: Typical current versus voltage curve was derived  
using the IEC 1.2/50-µs surge waveform.  
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.  
Copyright 2000, Texas Instruments Incorporated  
PRODUCTION DATA information is current as of publication date.  
Products conform to specifications per the terms of Texas Instruments  
standard warranty. Production processing does not necessarily include  
testing of all parameters.  
1
POST OFFICE BOX 655303 • DALLAS, TEXAS 75265  
123456

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SN65240 替代型号

型号 品牌 替代类型 描述 数据表
SN75240 TI

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