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SP721ABT

更新时间: 2024-11-25 04:03:19
品牌 Logo 应用领域
力特 - LITTELFUSE 电子
页数 文件大小 规格书
6页 97K
描述
Electronic Protection Array for ESD and Overvoltage Protection

SP721ABT 数据手册

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TVS Diode Arrays  
Electronic Protection Array for ESD and Overvoltage Protection  
SP721  
The SP721 is an array of SCR/Diode bipolar structures for ESD and  
over-voltage protection to sensitive input circuits. The SP721 has 2  
protection SCR/Diode device structures per input. There are a total of  
6 available inputs that can be used to protect up to 6 external signal or  
bus lines. Over-voltage protection is from the IN (Pins 1 - 3 and Pins  
5 - 7) to V+ or V-.  
The SCR structures are designed for fast triggering at a threshold of one  
+V  
diode threshold above V+ (Pin 8) or a -V  
diode threshold below  
BE  
BE  
V- (Pin 4). From an IN input, a clamp to V+ is activated if a transient  
pulse causes the input to be increased to a voltage level greater than  
one V  
one V  
above V+. A similar clamp to V- is activated if a negative pulse,  
less than V-, is applied to an IN input. Standard ESD Human  
BE  
BE  
Body Model (HBM) Capability is:  
Features  
HBM  
STANDARD  
• ESD Interface Capability for HBM Standards  
MODE  
R
C
ESD (V)  
>15kV  
>4kV  
- MIL STD 3015.7 . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 15kV  
- IEC 61000-4-2, Direct Discharge,  
- Single Input. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 4kV (Level 2)  
- Two Inputs in Parallel . . . . . . . . . . . . . . . . . . . . . . . . . . 8kV (Level 4)  
- IEC 61000-4-2, Air Discharge . . . . . . . . . . . . . . . . . . 15kV (Level 4)  
IEC 61000-4-2  
Air  
330150pF  
330150pF  
330150pF  
1.5k100pF  
Direct  
Direct, Dual Pins  
>8kV  
MIL-STD-3015.7 Direct, In-Circuit  
>15kV  
• High Peak Current Capability  
- IEC 61000-4-5 (8/20µs). . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . ±3A  
- Single Pulse, 100µs Pulse Width . . . . . . . . . . . . . . . . . . . . . . . . ±2A  
- Single Pulse, 4µs Pulse Width . . . . . . . . . . . . . . . . . . . . . . . . . . ±5A  
Refer to Figure 1 and Table 1 for further detail. Refer to Application  
Notes AN9304 and AN9612 for additional information.  
• Designed to Provide Over-Voltage Protection  
Ordering Information  
- Single-Ended Voltage Range to . . . . . . . . . . . . . . . . . . . . . . . . +30V  
- Differential Voltage Range to. . . . . . . . . . . . . . . . . . . . . . . . . . . ±15V  
TEMP. RANGE  
PKG.  
NO.  
Min.  
Order  
o
PART NO.  
SP721AP  
( C)  
PACKAGE  
8 Ld PDIP  
• Fast Switching . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 2ns Rise Time  
• Low Input Leakages . . . . . . . . . . . . . . . . . . . . . . . . 1nA at 25oC Typical  
• Low Input Capacitance. . . . . . . . . . . . . . . . . . . . . . . . . . . . . 3pF Typical  
• An Array of 6 SCR/Diode Pairs  
-40 to 105  
-40 to 105  
-40 to 105  
E8.3  
2000  
SP721AB  
8 Ld SOIC  
M8.15  
M8.15  
1960  
2500  
SP721ABT  
8 Ld SOIC  
Tape and Reel  
• Operating Temperature Range . . . . . . . . . . . . . . . . . . . . -40oC to 105oC  
Pinout  
Applications  
• Microprocessor/Logic Input Protection  
SP721 (PDIP, SOIC)  
TOP VIEW  
• Data Bus Protection  
• Analog Device Input Protection  
• Voltage Clamp  
IN  
IN  
IN  
V-  
1
2
3
4
8
7
6
5
V+  
IN  
IN  
IN  
Functional Block Diagram  
V+  
IN  
V-  
8
1
4
3, 5-7  
IN  
2
IN  
234  
www. lit t elf us e. c om  

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