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參數(shù)資料
| 型號(hào)： | TLE4278G |
| 廠商： | SIEMENS A G |
| 元件分類(lèi)： | 基準(zhǔn)電壓源/電流源 |
| 英文描述： | 5-V Low-Drop Fixed Voltage Regulator |
| 中文描述： | 5 V FIXED POSITIVE LDO REGULATOR, 0.5 V DROPOUT, PDSO14 |
| 文件頁(yè)數(shù)： | 14/18頁(yè) |
| 文件大?。?/td> | 88K |
| 代理商： | TLE4278G |
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TLE 4278 G
Semiconductor Group
14
1998-11-01
Watchdog Timing
The frequency of the watchdog pulses has to be higher than the minimum pulse
sequence which is set by the external reset delay capacitor
C
d
. Calculation can be done
according to the formulas given in figure 8.
The watchdog output is internally connected to the output Q via a 30 k
pull-up resistor.
To generate a watchdog created reset signal for the microcontroller the pin WO can be
connected to the reset input of the microcontroller. It is also allowed to parallel the
watchdog out to the reset out.
Figure 8
Timing of the Watchdog Function
AED01543
W
V
V
V
Q
D
V
V
WO
V
DU
-V
DWL
(
)
Ι
(
d
+
Ι
dis
dis
)
Ι
d
Ι
x
T
WP
=
C
D
;
WR
t
WP
T
WT
T
WR
t
=
V
V
DU
-
Ι
d
DWL
)
C ;
T
=
V
V
DU
-
DWL
)
Ι
dis
D
C
DU
V
V
DWL
Ι
Ι
WT
DUL
V
=
DRL
V
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| TLE4279 | 5-V Low-Drop Fixed Voltage Regulator |
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| TLE4278GXT | 功能描述:低壓差穩(wěn)壓器 - LDO Voltage Regulator 5V RoHS:否 制造商:Texas Instruments 最大輸入電壓:36 V 輸出電壓:1.4 V to 20.5 V 回動(dòng)電壓（最大值）:307 mV 輸出電流:1 A 負(fù)載調(diào)節(jié):0.3 % 輸出端數(shù)量: 輸出類(lèi)型:Fixed 最大工作溫度:+ 125 C 安裝風(fēng)格:SMD/SMT 封裝 / 箱體:VQFN-20 |
| TLE4278GXUMA1 | 制造商:Infineon Technologies AG 功能描述:LDO Regulator Pos 5V 0.2A 14-Pin DSO 制造商:Infineon Technologies AG 功能描述:LINEAR VOLTAGE REGULATOR - Tape and Reel 制造商:Infineon Technologies AG 功能描述:IC REG LDO 5V 0.15A 14DSO |
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