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參數(shù)資料
| 型號： | TDE1898CDP |
| 廠商： | 意法半導(dǎo)體 |
| 英文描述： | 0.5A HIGH-SIDE DRIVER INDUSTRIAL INTELLIGENT POWER SWITCH |
| 中文描述： | 0.5A的高邊驅(qū)動器工業(yè)智能功率開關(guān) |
| 文件頁數(shù)： | 5/12頁 |
| 文件大?。?/td> | 121K |
| 代理商： | TDE1898CDP |
APPLICATION INFORMATION
DEMAGNETIZATION OF INDUCTIVE LOADS
An internal zener diode, limiting the voltage
across the Power MOS to between 45 and 55V
(V
cl
), provides safe and fast demagnetization of
inductiveloads without external clamping devices.
The maximum energy that can be absorbed from
an inductive load is specified as 200mJ (at
T
j
= 85
°
C).
To define the maximumswitching frequencythree
pointshave to be considered:
1) The total power dissipation is the sum of the
On State Power and of the Demagnetization
Energy multiplied by the frequency.
2)
The total energy W dissipated in the device
during a demagnetizationcycle(figg. 2, 3) is:
W
=
V
cl
L
R
L
I
o
–V
cl
– V
s
R
L
log
1
+
V
s
V
cl
–V
s
Where:
V
cl
= clamp voltage;
L =inductive load;
R
L
= resistive load;
Vs = supply voltage;
I
O
= I
LOAD
In normal conditions the operating Junction
temperature should remainbelow 125
°
C.
3)
Figure 2:
InductiveLoad Equivalent Circuit
Figure3:
DemagnetizationCycle Waveforms
-25
0
25
50
75
100
125
Tj (
°
C)
0.6
0.8
1.0
1.2
1.4
1.6
1.8
α
D93IN018
α
=
RDSON (Tj)
RDSON (Tj=25
°
C)
Figure4:
Normalized R
DSON
vs. Junction
Temperature
TDE1897C - TDE1898C
5/12
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相關(guān)代理商/技術(shù)參數(shù) |
參數(shù)描述 |
|---|---|
| TDE1898CFP | 功能描述:電源開關(guān) 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(guān)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(fēng)格:SMD/SMT 封裝 / 箱體:SOT-23-5 |
| TDE1898CFPT | 功能描述:電源開關(guān) 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(guān)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(fēng)格:SMD/SMT 封裝 / 箱體:SOT-23-5 |
| TDE1898CSP | 制造商:STMICROELECTRONICS 制造商全稱:STMicroelectronics 功能描述:0.5A HIGH-SIDE DRIVER INDUSTRIAL INTELLIGENT POWER SWITCH |
| TDE1898R | 制造商:STMICROELECTRONICS 制造商全稱:STMicroelectronics 功能描述:0.5A HIGH-SIDE DRIVER INDUSTRIAL INTELLIGENT POWER SWITCH |
| TDE1898RDP | 功能描述:電源開關(guān) 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(guān)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(fēng)格:SMD/SMT 封裝 / 箱體:SOT-23-5 |
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