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參數(shù)資料
| 型號(hào)： | TLE4299 |
| 廠商： | INFINEON TECHNOLOGIES AG |
| 英文描述： | 5-V Low-Drop Fixed Voltage Regulator |
| 中文描述： | 5 - V低拖放固定穩(wěn)壓器 |
| 文件頁數(shù)： | 14/22頁 |
| 文件大小： | 356K |
| 代理商： | TLE4299 |
TLE 4299
Data Sheet Rev. 1.0
14
2002-01-17
Reset
The power on reset feature is necessary for a defined start of the microprocessor when
switching on the application. For the reset delay time after the output voltage of the
regulator is above the reset threshold, the reset signal is set High again. The reset delay
time is defined by the reset delay capacitor
C
D
at pin D.
The under-voltage reset circuitry supervises the output voltage. In case
V
Q
decreases
below the reset threshold the reset output is set LOW after the reset reaction time. The
reset LOW signal is generated down to an output voltage
V
Q
to 1 V. Both the reset
reaction time and the reset delay time is defined by the capacitor value.
The power on reset delay time is defined by the charging time of an external delay
capacitor
C
D
.
C
D
= (
t
d
I
D
) /
V
With
C
D
reset delay capacitor
t
d
reset delay time
V
=
V
UD
,
typical 1.8 V for power up reset
V
=
V
UD
–
V
LD
typical 1.35 V for undervoltage reset
I
D
charge current typical 6.5 A
For a delay capacitor
C
D
=100 nF the typical power on reset delay time is 28 ms.
The reset reaction time
t
RR
is the time it takes the voltage regulator to set reset output
LOW after the output voltage has dropped below the reset threshold. It is typically 1 s
for delay capacitor of 100 nF. For other values for
C
D
the reaction time can be estimated
using the following equation:
t
RR
= 10 ns / nF
C
D
[1]
[2]
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| TLE4299_04 | 制造商:INFINEON 制造商全稱:Infineon Technologies AG 功能描述:5-V Low Drop Fixed Voltage Regulator |
| TLE4299_07 | 制造商:INFINEON 制造商全稱:Infineon Technologies AG 功能描述:Low-Drop Fixed Voltage Regulator |
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| TLE42994E | 功能描述:線性穩(wěn)壓器 - 標(biāo)準(zhǔn) LINEAR VLTGE REG RoHS:否 制造商:STMicroelectronics 輸出類型: 極性: 輸出電壓:1.8 V 輸出電流:150 mA 負(fù)載調(diào)節(jié): 最大輸入電壓:5.5 V 線路調(diào)整率: 最大工作溫度:+ 125 C 安裝風(fēng)格:SMD/SMT 封裝 / 箱體:SOT-323-5L |
| TLE42994E V33 | 功能描述:低壓差穩(wěn)壓器 - LDO Low Dropout Fixed Voltage Regulator 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: 輸出類型:Fixed 最大工作溫度:+ 125 C 安裝風(fēng)格:SMD/SMT 封裝 / 箱體:VQFN-20 |
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