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參數(shù)資料
| 型號： | TDE1891V |
| 廠商： | 意法半導體 |
| 英文描述： | 2A HIGH-SIDE DRIVER INDUSTRIAL INTELLIGENT POWER SWITCH |
| 中文描述： | 甲高邊驅(qū)動器工業(yè)智能功率開關 |
| 文件頁數(shù)： | 8/12頁 |
| 文件大?。?/td> | 111K |
| 代理商： | TDE1891V |
- All electricalparametersof the device, con-
cerningthe calculation, are at maximum val-
ues.
- Thermal shutdownthresholdis at minimum
value.
Therefore:
V
s
= 30V, R
DSON0
= 0.23
, I
q
= 8mA, I
os
= 4mA
@ V
os
= 2.5V,
Θ
Lim = 135
°
C
R
thj-amb
= 35
°
C/W
It follows:
I
outx
= 2.5A,R
DSONx
= 0.386
, P
q
= 240mW,
P
os
= 110mW
From equation 4 we can see that, without any
heatsink, it is not possible to operate in the ON
steady state at the maximum current value. A
derating curve for this case is reported in fig. 7.
Usingan externalheatsink,in orderto obtain a to-
tal R
th
of 15
°
C/W, we obtain the derating curve
reportedin fig.8.
0
20
40
60
80
100
120
0.0
0.5
1.0
1.5
2.0
2.5
D93IN033
Io
(A)
Tamb(
°
C)
Figure 7:
Max. Output Current vs. Ambient
Temperature(Multiwatt without
heatsink,R
th j-amb
= 35
°
C/W)
0
20
40
60
80
100
120
0.0
0.5
1.0
1.5
2.0
2.5
D93IN020A
Io
(A)
Tamb(
°
C)
Figure8:
Max.OutputCurrent vs. Ambient
Temperature (Multiwattwith heatsink,
R
th j-amb
= 15
°
C/W)
+
-
+IN
-IN
D1
D2
CONTROL
LOGIC
Ios
LOAD
OUTPUT
OUTPUT STATUS
GND
μ
P POLLING
+Vs
DC BUS 24V +/-25%
D93IN014
Figure 6:
ApplicationCircuit
8/12
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相關代理商/技術參數(shù) |
參數(shù)描述 |
|---|---|
| TDE1897C | 制造商:STMICROELECTRONICS 制造商全稱:STMicroelectronics 功能描述:0.5A HIGH-SIDE DRIVER INDUSTRIAL INTELLIGENT POWER SWITCH |
| TDE1897C_03 | 制造商:STMICROELECTRONICS 制造商全稱:STMicroelectronics 功能描述:0.5A HIGH-SIDE DRIVER INDUSTRIAL INTELLIGENT POWER SWITCH |
| TDE1897CDP | 功能描述:電源開關 IC - 配電 0.5A High Side RoHS:否 制造商:Exar 輸出端數(shù)量:1 開啟電阻（最大值）:85 mOhms 開啟時間（最大值）:400 us 關閉時間（最大值）:20 us 工作電源電壓:3.2 V to 6.5 V 電源電流（最大值）: 最大工作溫度:+ 85 C 安裝風格:SMD/SMT 封裝 / 箱體:SOT-23-5 |
| TDE1897CFP | 功能描述:電源開關 IC - 配電 0.5A High Side RoHS:否 制造商:Exar 輸出端數(shù)量:1 開啟電阻（最大值）:85 mOhms 開啟時間（最大值）:400 us 關閉時間（最大值）:20 us 工作電源電壓:3.2 V to 6.5 V 電源電流（最大值）: 最大工作溫度:+ 85 C 安裝風格:SMD/SMT 封裝 / 箱體:SOT-23-5 |
| TDE1897CFPT | 功能描述:電源開關 IC - 配電 0.5A High Side RoHS:否 制造商:Exar 輸出端數(shù)量:1 開啟電阻（最大值）:85 mOhms 開啟時間（最大值）:400 us 關閉時間（最大值）:20 us 工作電源電壓:3.2 V to 6.5 V 電源電流（最大值）: 最大工作溫度:+ 85 C 安裝風格:SMD/SMT 封裝 / 箱體:SOT-23-5 |
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