Transcript TVS

產品介紹(一)
E 系列介紹
一般特性:
◎ 晶片尺寸：從0402到0603( 英吋 )
◎ 薄膜和高精密技術
◎ 專為表面黏著設計之無接腳SMD式結構，防治ESD
◎ 低抑制電壓、高能量吸收
◎ 低電容值(2 pF)、快速反應(Rise Time 0.5 nS)
◎ 對電路電壓的高度穩定性
◎ 優異的溫度係數，低漏電流(0.1 uA)
◎ 適合自動插取設備，可以帶裝
◎ 與大部分表面黏著組裝設備及表面黏著技術相容
◎通過IEC 61000-4-2 Level 4 15KV/8KV
SFI Group-----Sun Flower Semiconductor Co-Leader Well Technology Co.
產品介紹(二)
C 系列介紹
一般特性:
◎ 晶片尺寸：從0402到2220( 英吋 )
◎ 薄膜和高精密技術
◎ 專為表面黏著設計之無接腳SMD式結構
◎ 額定交流電壓從2.5V~60V
◎ 額定能量最高到8.8焦耳
◎ 低抑制電壓、高能量吸收
◎ 低感量、快速反應
◎ 對電路電壓的高度穩定性
◎ 優異的溫度係數
◎ 適合自動插取設備，可以帶裝
◎ 與大部分表面黏著組裝設備及表面黏著技術相容
SFI Group-----Sun Flower Semiconductor Co-Leader Well Technology Co.
Comparison of Diode Protection Method
and TVS Protection Method
暫態電壓抑制器與集納二極體保護方式之比較
XCVR
XCVR
BUS
TVS
Diode
Single component solution
BUS
EMC
Capacitance
3 components solution
The circuit layout is greatly simplified by the implementation of varistor protection
methods. It saves PCB space and improves the reliability of the system.
藉由TVS之運用，可簡化並節省電路空間之設計，並增加系統之穩定度。
SFI Group-----Sun Flower Semiconductor Co-Leader Well Technology Co.
3
TVS and the Equivalent Circuit
暫態電壓抑制器與等效電路之對比
L
Rv
R
C
L
Body Inductance
C
Device Capacitance
Rv
R
The circuit layout is greatly
simplified by the implementation
of varistor protection methods.
It saves PCB space and
improves system reliabilty.
Voltage Variable Resistor
Insulation Resistor
藉由TVS之運用，可簡化
並節省電路空間之設計，
並增加系統之穩定度。
TVS Equivalent Model
SFI Group-----Sun Flower Semiconductor Co-Leader Well Technology Co.
4
SFI
Transient Voltage Suppressor
Typical Circuits Protection Application
典型之電路保護運用範例。
The following applications and diagrams demonstrate
where the TVS might be used to suppress various transient events.
LCD Protection
Keyboard Protection
NOTEBOOK & WORK STATION
LM319 Relay Driver
Hall Device Protection
Laser Diode Protection
MOSFET Protection
ASIC Protection
IC Protection
Typical Sensor Protection
Preamplifier Protection
Audio Circuit Protection
CMOS RELAY DRIVERS
SFI Group-----Sun Flower Semiconductor Co-Leader Well Technology Co.
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SFI
Transient Voltage Suppressor
NOTEBOOK
IC Protection
& WORK STATION
OUTPUT
D
D
IC
INPUT
D
D
MAX211
DRVR/RCVR
＋Vcc
R
R
R
R
R
= TVS
SFI Group-----Sun Flower Semiconductor Co-Leader Well Technology Co.
6
手機-系統產品應用參考
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一般需求為接觸放電8KV以上
RF收發系統,SAW保護
COG LCM 驅動IC之保護.
觸控面板控制IC之保護
按鍵區域線路之保護.
電池電源區域線路之保護
I/O接線接頭區域線路之保護.
通訊用纜線保護.
Microphone and Earphone
建議使用 :
SFI 0402 ESD Series for I/O
SFI 0402 C Series for Power
Microphone or Earphone
Wireless Module
Memory Card
Battery Charger
Data Connector
PDA-系統產品應用參考
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•
•
•
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一般需求為接觸放電8KV以上
LCD顯示幕驅動IC之保護.
觸控面板控制IC之保護
按鍵區域線路之保護.
電池電源區域線路之保護
I/O接線接頭區域線路之保護.
Microphone or Earphone
Wireless Module
Memory Card
Battery Charger
Data Connector
SFI
Transient Voltage Suppressor
LCD Protection
LSI
Audio Circuit Protection
88
D0-D7
LCD
240×64
IN
68 
WR
RD
44
C/D
FS
68 
240
33
CE
33
SEG
DRIVER
X3
1K 
RESET
4.91MHZ
64
COM.
DRIVER
X1
CONTROLLER
IN
12
2N2222
88
S-RAM
= TVS
SFI Group-----Sun Flower Semiconductor Co-Leader Well Technology Co.
7
SFI
Transient Voltage Suppressor
Keyboard Protection
Keyboard
Controller
74AHCT05
ASIC Protection
FERRITE
BEAD
ASIC
Vcc
DATA
74AHCT05
GND
FERRITE
BEAD
CLOCK
RESET
= TVS
SFI Group-----Sun Flower Semiconductor Co-Leader Well Technology Co.
8
SFI
Transient Voltage Suppressor
MOSFET Protection
CMOS RELAY DRIVERS
Vcc
TO LOAD AND SUPPLY
DRAIN
IN1
IN2
INPUT
GATE
SOURCE
½ MM74C908 MM74C918
RELAY
= TVS
SFI Group-----Sun Flower Semiconductor Co-Leader Well Technology Co.
9
SFI
Transient Voltage Suppressor
LM319 Relay Driver
＋ 5V
Typical Sensor Protection
＋ 28V
1μF
180Ω
1N4004
1N4004
RELAY
120MOV
0.01μF
1N4004
IN 1
½ LM319
IN 2
= TVS
SFI Group-----Sun Flower Semiconductor Co-Leader Well Technology Co.
10
SFI
Transient Voltage Suppressor
Preamplifier Protection
Hall Device Protection
＋5V
DC12V（Vdd）
15pF
8
H1
H2
H1,H2,H3 ：Hall Device
H3
10 μ h
10
Vcc
1
16
2
15
3
14
4
μ PC1246C 13
5
12
6
11
7
1.8kΩ
RF INPUT
0.01 μF
MPF102
1MΩ
0.01 μ F
NEXT
STAGE
180pF
100Ω
GND
9
= TVS
SFI Group-----Sun Flower Semiconductor Co-Leader Well Technology Co.
11
SFI
Transient Voltage Suppressor
Laser Diode Protection
1N4148
1Ω
0.1μF
100 Ω
2N4400
LASER DIODE
2N6659
100pF
1kΩ
1N4148
VN64GA
2N4400
2N6659
= TVS
SFI Group-----Sun Flower Semiconductor Co-Leader Well Technology Co.
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