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參數(shù)資料
| 型號： | TDE1898 |
| 廠商： | 意法半導體 |
| 英文描述： | Monolithic Intelligent Power Switch(單片智能電源開關(guān)) |
| 中文描述： | 單片智能功率開關(guān)（單片智能電源開關(guān)） |
| 文件頁數(shù)： | 4/6頁 |
| 文件大小： | 59K |
| 代理商： | TDE1898 |
For a typical TDE1898 sample in SIP9 package
(see Fig. 5) in ”thermal” periodic repetition, the
current (self limited region) is limited to 1.15A and
the voltage across the D.U.T. is = 10.2V for
300msec.”on” time. The energy dissipated on the
D.U.T. in the demagnetization cycle is = 1.38J
(**). The repetition cycle rate = 0.52Hz (t =
1.92sec.).
P
don
(average)= 1.15A
10.2V
0.3s/1.92s= 1.83W
P
dem
(average)= 1.38J
0.522cycles/s = 0.72W
The total power = 2.6W
The R
th j-amb
for SIP9 ”on socket”
50
°
C/W that leads the average temperature on
the hot region of the chipto 150
°
C
.
is about
Note(**)
The formula to use is :
W= V
CL
L/R
l
*{I
O
-[(V
CL
-V
S
)/R
l
]
log[1+(I
O*
R
l
)/(V
CL
-V
S
)]}
It is also interestingto see (Fig. 4 and 6) the tem-
perature versus time (mesaured monitoring the
forward voltage drop of an internal diode placed
1.5mm from the center of the power DMOS) in a
region of the chip at lower average temperature.
On the ”hot” region, the estimated temperatureis
quite higher (up to + 60
°
C. on the peak tempera-
ture, during the demagnetizationphase)
However no failure could be observed on the
cheked devices
also reducing the R
l
value
down to 8
, on someMinidip samples.
Figure 5:
TDE1898 in SIP9 package Output Voltage (CH2) and Output Current (CH1) vs Time in Ther-
mal Periodic Repetition
CH1 =200mA/div
CH2 =10V/div
t = 100ms/div
300ms
Figure6:
TDE1898 in SIP9package Output Current and Test Point Temperaturevs. Time
CH1 =200mA/div
CH2 =50
°
C/div
t =100ms/div
Tmin
120
°
C
–
Tmax
165
°
C
APPLICATION NOTE
4/6
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相關(guān)代理商/技術(shù)參數(shù) |
參數(shù)描述 |
|---|---|
| TDE1898C | 制造商:STMICROELECTRONICS 制造商全稱:STMicroelectronics 功能描述:0.5A HIGH-SIDE DRIVER INDUSTRIAL INTELLIGENT POWER SWITCH |
| TDE1898CDP | 功能描述:開關(guān) IC - 各種 0.5A High Side RoHS:否 制造商:Fairchild Semiconductor 開啟電阻（最大值）: 電源電壓-最大:4.4 V 電源電壓-最小:2.5 V 最大工作溫度:+ 85 C 最小工作溫度:- 40 C 封裝 / 箱體:WLCSP-9 封裝:Reel |
| 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 |
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