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參數(shù)資料
| 型號： | SP720ABT |
| 廠商： | Harris Corporation |
| 英文描述： | Electronic Protection Array for ESD and Over-Voltage Protection |
| 中文描述： | 電子保護(hù)陣列ESD和過電壓保護(hù) |
| 文件頁數(shù)： | 4/6頁 |
| 文件大?。?/td> | 206K |
| 代理商： | SP720ABT |
6-6
Peak Transient Current Capability of the SP720
The peak transient current capability rises sharply as the
width of the current pulse narrows. Destructive testing was
done to fully evaluate the SP720’s ability to withstand a wide
range of transient current pulses. The circuit used to
generate current pulses is shown in Figure 5.
The test circuit of Figure 5 is shown with a positive pulse
input. For a negative pulse input, the (-) current pulse input
goes to an SP720 ‘IN’ input pin and the (+) current pulse
input goes to the SP720 V- pin. The V+ to V- supply of the
SP720 must be allowed to float. (i.e., It is not tied to the
ground reference of the current pulse generator.) Figure 6
shows the point of overstress as defined by increased
leakage in excess of the data sheet published limits.
The maximum peak input current capability is dependent on
the V+ to V- voltage supply level, improving as the supply
voltage is reduced. Values of 0, 5, 15 and 30 voltages are
shown. 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 Figure 6.
When adjacent input pins are paralleled, the sustained peak
current capability is increased to nearly twice that of a single
pin. For comparison, tests were run using dual pin
combinations 1+2, 3+4, 5+6, 7+9, 10+11, 12+13 and 14+15.
The overstress curve is shown in Figure 6 for a 15V supply
condition. The dual pins are capable of 10A peak current for
a 10
μ
s pulse and 4A peak current for a 1ms pulse. The
complete for single pulse peak current vs. pulse width time
ranging up to 1 second are shown in Figure 6.
+
-
CURRENT
SENSE
VOLTAGE
PROBE
14
15
16
9
13
12
11
10
1
2
3
4
5
7
6
8
IN
IN
IN
IN
IN
IN
V-
IN
V+
IN
IN
IN
IN
IN
IN
IN
+
-
R
1
~
10
TYPICAL
V
G
ADJ. 10V/A TYPICAL
C1
~
100
μ
F
SP720
V
G
R
1
(-)
(+)
C1
VARIABLE TIME DURATION
CURRENT PULSE GENERATOR
FIGURE 5. TYPICAL SP720 PEAK CURRENT TEST CIRCUIT
WITH A VARIABLE PULSE WIDTH INPUT
0.001
0.01
0.1
1
PULSE WIDTH TIME (ms)
P
10
7
6
5
4
3
2
1
0
0V
5V
15V
V+ TO V- SUPPLY
100
1000
10
9
30V
15V
CAUTION: SAFE OPERATING CONDITIONS LIMIT
THE MAXIMUM PEAK CURRENT FOR A GIVEN
OF THE VALUES SHOWN ON EACH CURVE.
SINGLE PIN STRESS CURVES
DUAL PIN STRESS CURVE
PULSE WIDTH TO BE NO GREATER THAN 75%
8
FIGURE 6. SP720 TYPICAL SINGLE PULSE PEAK CURRENT CURVES SHOWING THE MEASURED POINT OF OVER-STRESS IN
AMPERES vs PULSE TIME IN MILLISECONDS (T
A
= 25
o
C)
SP720
相關(guān)PDF資料 |
PDF描述 |
|---|---|
| SP720AP | Electronic Protection Array for ESD and Over-Voltage Protection |
| SP721 | ELECTRONIC PROTECTION ARRAY FOR ESD AND OVER-VOLTAGE PROTECTION |
| SP721AB | ELECTRONIC PROTECTION ARRAY FOR ESD AND OVER-VOLTAGE PROTECTION |
| SP721ABT | ELECTRONIC PROTECTION ARRAY FOR ESD AND OVER-VOLTAGE PROTECTION |
| SP721AP | ELECTRONIC PROTECTION ARRAY FOR ESD AND OVER-VOLTAGE PROTECTION |
相關(guān)代理商/技術(shù)參數(shù) |
參數(shù)描述 |
|---|---|
| SP720ABTG | 功能描述:TVS二極管陣列 30V 1A 3pF 14 Input RoHS:否 制造商:Littelfuse 極性: 通道:4 Channels 擊穿電壓: 鉗位電壓:11.5 V 工作電壓:2.5 V 峰值浪涌電流:20 A 安裝風(fēng)格:SMD/SMT 端接類型:SMD/SMT 系列: 最小工作溫度:- 40 C 最大工作溫度:+ 85 C |
| SP720ABTG | 制造商:Littelfuse 功能描述:Diode 制造商:Littelfuse 功能描述:DIODE, TVS, 3pF, SOIC-16 |
| SP720ABTG-CUT TAPE | 制造商:LITTELFUSE 功能描述:SP720 Series 3 pF Surface Mount Electronic Protection Array for ESD - SOIC-16 |
| SP720AP | 功能描述:TVS二極管陣列 SP720AP RoHS:否 制造商:Littelfuse 極性: 通道:4 Channels 擊穿電壓: 鉗位電壓:11.5 V 工作電壓:2.5 V 峰值浪涌電流:20 A 安裝風(fēng)格:SMD/SMT 端接類型:SMD/SMT 系列: 最小工作溫度:- 40 C 最大工作溫度:+ 85 C |
| SP720APP | 功能描述:TVS二極管陣列 14 CH DIODE ARRAY RoHS:否 制造商:Littelfuse 極性: 通道:4 Channels 擊穿電壓: 鉗位電壓:11.5 V 工作電壓:2.5 V 峰值浪涌電流:20 A 安裝風(fēng)格:SMD/SMT 端接類型:SMD/SMT 系列: 最小工作溫度:- 40 C 最大工作溫度:+ 85 C |
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