参数资料
| 型号： | SP721APP |
| 厂商： | Littelfuse Inc |
| 文件页数： | 4/6页 |
| 文件大小： | 0K |
| 描述： | TVS ARRAY ESD 6 INPUT 8-DIP |
| 产品培训模块： | Transient Voltage Suppression (TVS) Diodes TVS Diode Array |
| 产品目录绘图： | SP72 Series Circuit |
| 标准包装： | 500 |
| 系列： | SP721 |
| 电压 - 工作： | 30V |
| 技术： | 混合技术 |
| 电路数： | 6 |
| 应用： | 通用 |
| 封装/外壳： | 8-DIP（0.300"，7.62mm） |
| 供应商设备封装： | 8-PDIP |
| 包装： | 管件 |
| 产品目录页面： | 2374 (CN2011-ZH PDF) |
| 其它名称： | F2720 |
TVS Diode Arrays (SPA ? Diodes)
General Purpose ESD Protection - SP721 Series
Peak Transient Current Capability of the SP721
The peak transient current capability rises sharply as the
width of the current pulse narrows. Destructive testing
was done to fully evaluate the SP721’s ability to withstand
a wide range of peak current pulses vs time. The circuit
Figure 4: Typical SP721 Peak Current Test Circuit
with a Variable Pulse Width Input
used to generate current pulses is shown in Figure 4.
The test circuit of Figure 4 is shown with a positive pulse
input. For a negative pulse input, the (-) current pulse input
+
V X
-
R 1
VARIABLE TIME DURATION
CURRENT PULSE GENERA TOR
CURRENT
SENSE
(-)
goes to an SP721 ‘IN’ input pin and the (+) current pulse
input goes to the SP721 V- pin. The V+ to V- supply of the
SP721 must be allowed to float. (i.e., It is not tied to the
ground reference of the current pulse generator.) Figure
5 shows the point of overstress as defined by increased
(+)
VOLTAGE
PROBE
1 IN
2 IN
3 IN
4 V-
SP721
V+ 8
IN 7
IN 6
IN 5
C1
+
-
leakage in excess of the data sheet published limits.
Capability A VARIABLE PULSE WIDTH INPUT
The maximum peak input current capability is dependent
on the ambient temperature, improving as the temperature
is reduced. Peak current curves are shown for ambient
temperatures of 25oC and 105oC and a 15V power supply
condition. The safe operating range of the transient peak
current should be limited to no more than 75% of the
measured overstress level for any given pulse width as
shown in the curves of Figure 5.
R 1 ~ 10 TYPICAL
V X ADJ. 10V/ATYPICAL
C1 ~ 100 μF
FIGURE 5. TYPICAL SP721 PEAK Peak TEST CIRCUIT
Figure 5: SP721 Typical Single CURRENT Current Pulse
WITH
Showing the Measured Point of Overstress in Amperes vs
pulse width time in milliseconds
7
Note that adjacent input pins of the SP721 may be
paralleled to improve current (and ESD) capability. The
sustained peak current capability is increased to nearly
twice that of a single pin.
6
5
4
3
T A = 105°C
T A = 25°C
CAUTION: SAFE OPERATING CONDITIONS LIMIT
THE MAXIMUM PEAK CURRENT FOR A GIVEN
PULSE WIDTH TO BE NO GREATER THAN 75%
OF THE VALUES SHOWN ON EACH CURVE.
V+ TO V-SUPPLY = 15V
2
1
0
0.001
0.01
0.1
1
10
100
1000
PULSE WIDTH TIME (ms)
? 2013 Littelfuse, Inc.
Specifications are subject to change without notice.
Revised: 04/24/13
相关PDF资料 |
PDF描述 |
|---|---|
| NPPN221BFCN-RC | CONN RECEPT 2MM SINGLE STR 22POS |
| MMD25-0261D1 | CONN RACK/PANEL 26POS 5A |
| SP720ABTG | TVS ARRAY ESD 14 INPUT 16-SOIC |
| MMA23-0441C1 | CONN RACK/PANEL 44POS 5A |
| 953118-2000-AR-PR | CONN SOCKET 18POS 2MM VERT SMD |
相关代理商/技术参数 |
参数描述 |
|---|---|
| SP721APP | 制造商:Littelfuse 功能描述:TVS DIODE ARRAY |
| SP721APP | 制造商:Littelfuse 功能描述:TVS Diode Array |
| SP721APP | 制造商:Littelfuse 功能描述:THYRISTOR ARRAY TVS |
| SP721APTG | 制造商:LITTELFUSE 制造商全称:Littelfuse 功能描述:SP721 Series 3pF 4kV Diode Array |
| SP72226 | 制造商:L-com Inc 功能描述: |
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