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參數(shù)資料
| 型號： | SMP75-8 |
| 廠商： | 意法半導(dǎo)體 |
| 英文描述： | TRISILTM |
| 中文描述： | TRISILTM |
| 文件頁數(shù)： | 5/6頁 |
| 文件大?。?/td> | 63K |
| 代理商： | SMP75-8 |
TYPICAL APPLICATION : T1 / E1 protection
The above schematic shows a T1 / E1 application
circuit. This type of line protection may be used in
premises
equipment
or
equipment on ports directly connected to metallic
plantlines.
telephone company
During the lightning surge, the low voltage Trisil
SMP75-8
provides an efficient crowbar protection
on the primary sideof the transformer.
The SMP75-8 has a maximum peak pulse current
of 75A (10/1000
μ
s pulse) and a maximum
breakover voltage of 15V. This low voltage
prevents the transformer to be satured when a
surge occurs on the line. Additionally, the low
capacitance(65pF) is requiredto avoid significant
signaldegradationin thecase of highspeeddigital
pulses.
To protectthe IC line interfacefrom the remaining
energy which is coupledthrough the transformer,
additional voltage protection is recommended on
the line input / output pins of the IC. The diode
array DA108S1 connected between +Vcc and
GND is then
used to limit the
overvoltagewithin a safe level.
The DA108S1 is especially dedicated to this
application because. Its fast response time and
low forward voltage drop enable it to clamp any
surge before the
IC line
protection fails. Additionally, the low capacitance
(30pF)is requiredto preventsignal degradationof
thehigh speeddatd.
The DA108S1 is a fully integrated (1 chip) device
and results from the ST ASD
TM
Specific Discretes) technology. ASDs
TM
combine
the functions of several components into a single
monolithicdevice that is tailored to meet the exact
requirement of a specific application, allowing
higherdensity and improvedreliability.
remaining
interface internal
TX LINE
SMP75-8
5 V
0 V
SM6T6V8A
RX LINE
SMP75-8
RTIP
RRING
TTIP
TRING
+Vcc
+Vcc
+Vcc
+Vcc
IC
DA108S1
ORDER CODE
SMP
75 - 8
TRISIL75 A
VOLTAGE
SURFACE MOUNT
SMP75-8
5/6
相關(guān)PDF資料 |
PDF描述 |
|---|---|
| SMP80MC-200 | TRISIL FOR TELECOM EQUIPMENT PROTECTION |
| SMP80MC | TRISIL FOR TELECOM EQUIPMENT PROTECTION |
| SMP80MC-120 | TRISIL FOR TELECOM EQUIPMENT PROTECTION |
| SMP80MC-140 | TRISIL FOR TELECOM EQUIPMENT PROTECTION |
| SMP80MC-160 | TRISIL FOR TELECOM EQUIPMENT PROTECTION |
相關(guān)代理商/技術(shù)參數(shù) |
參數(shù)描述 |
|---|---|
| SMP75-8 | 制造商:STMicroelectronics 功能描述:DIODE TVS SMB 8V |
| SMP8.0A | 制造商:VISHAY 制造商全稱:Vishay Siliconix 功能描述:Surface Mount TRANSZORB Transient Voltage Suppressors |
| SMP8.0A-M3/84A | 制造商:Vishay Semiconductors 功能描述:400W, 8.0V 5%, UNIDIR, SMP TVS |
| SMP8.0A-M3/85A | 制造商:Vishay Semiconductors 功能描述:400W, 8.0V 5%, UNIDIR, SMP TVS |
| SMP80MC | 制造商:STMICROELECTRONICS 制造商全稱:STMicroelectronics 功能描述:TRISIL for telecom equipment protection |
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