參數(shù)資料
型號(hào): TDE1897C
廠商: 意法半導(dǎo)體
英文描述: 0.5A High-Side Driver Industrial Intelligent Power Switch(0.5A 高邊驅(qū)動(dòng)工業(yè)智能功率開(kāi)關(guān))
中文描述: 0.5A的高邊驅(qū)動(dòng)器工業(yè)智能功率開(kāi)關(guān)(0.5A的高邊驅(qū)動(dòng)工業(yè)智能功率開(kāi)關(guān))
文件頁(yè)數(shù): 7/12頁(yè)
文件大?。?/td> 112K
代理商: TDE1897C
(625mA instead of 500mA).
- All electrical parameters of the device, con-
cerning the calculation, are at maximum val-
ues.
- Thermal shutdown threshold is at minimum
value.
- No heat sink nor air circulation (R
th
equal to
R
thj-amb
).
Therefore:
V
s
= 30V, R
DSON0
= 0.6
, I
q
= 6mA, I
os
= 4mA @
V
os
= 2.5V,
Θ
Lim = 135
°
C
R
thj-amb
= 100
°
C/W (Minidip); 90
°
C/W (SO20);
70
°
C/W (SIP9)
It follows:
I
outx
= 0.625mA, R
DSONx
= 1.006
, P
q
= 180mW,
P
os
= 110mW
From equation4, we can find:
T
ambx
= 66.7
°
C (Minidip);
73.5
°
C(SO20);
87.2
°
C(SIP9).
Therefore, the IPS TDE1897/1898, although
guaranteed to operate up to 85
°
C ambient tem-
perature, if used in the worstconditions,can meet
some limitations.
SIP9 package, which has the lowest R
thj-amb
, can
work at maximum operative current over the en-
tire ambienttemperature range in the worst condi-
tions too. For other packages, it is necessary to
consider some reductions.
With the aid of equation 3, we can draw a derat-
ing curve giving the maximum current allowable
versus ambient temperature. The diagrams, com-
puted using parameter values above given, are
depicted in figg. 6 to 8.
If an increase of the operating area is needed,
heat dissipation must be improved (R
th
reduced)
e.g. by means of air cooling.
+
-
+IN
-IN
D1
D2
CONTROL
LOGIC
Ios
LOAD
OUTPUT
OUTPUT STATUS
GND
μ
P POLLING
+Vs
DC BUS 24V +/-25%
D93IN014
Figure 5:
Application Circuit.
TDE1897C - TDE1898C
7/12
相關(guān)PDF資料
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TDE1898C 0.5A High-Side Driver Industrial Intelligent Power Switch(0.5A 高邊驅(qū)動(dòng)工業(yè)智能功率開(kāi)關(guān))
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參數(shù)描述
TDE1897C_03 制造商:STMICROELECTRONICS 制造商全稱(chēng):STMicroelectronics 功能描述:0.5A HIGH-SIDE DRIVER INDUSTRIAL INTELLIGENT POWER SWITCH
TDE1897CDP 功能描述:電源開(kāi)關(guān) IC - 配電 0.5A High Side RoHS:否 制造商:Exar 輸出端數(shù)量:1 開(kāi)啟電阻(最大值):85 mOhms 開(kāi)啟時(shí)間(最大值):400 us 關(guān)閉時(shí)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
TDE1897CFP 功能描述:電源開(kāi)關(guān) IC - 配電 0.5A High Side RoHS:否 制造商:Exar 輸出端數(shù)量:1 開(kāi)啟電阻(最大值):85 mOhms 開(kāi)啟時(shí)間(最大值):400 us 關(guān)閉時(shí)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
TDE1897CFPT 功能描述:電源開(kāi)關(guān) IC - 配電 0.5A High Side RoHS:否 制造商:Exar 輸出端數(shù)量:1 開(kāi)啟電阻(最大值):85 mOhms 開(kāi)啟時(shí)間(最大值):400 us 關(guān)閉時(shí)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
TDE1897R 制造商:STMICROELECTRONICS 制造商全稱(chēng):STMicroelectronics 功能描述:0.5A HIGH-SIDE DRIVER INDUSTRIAL INTELLIGENT POWER SWITCH