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參數(shù)資料
| 型號： | TLE4290D |
| 廠商： | INFINEON TECHNOLOGIES AG |
| 英文描述： | 5-V Low-Drop Voltage Regulator |
| 中文描述： | 5V的低壓降穩(wěn)壓器 |
| 文件頁數(shù)： | 2/18頁 |
| 文件大?。?/td> | 210K |
| 代理商： | TLE4290D |
TLE 4290
Data Sheet Rev. 1.4
2
2001-10-18
Power Good
The Power Good PG pin informs e.g. the microcontroller in case the output voltage has
fallen below the lower threshold
V
Q,pgt-d
of typ. 3.65 V. Connecting the regulator to a
battery voltage at first the power good signal remains LOW. When the output voltage has
reached the higher threshold
V
Q,pgt-i
the power good output remains still LOW for the
power good delay time
t
rd
. Afterwards the power good output turns HIGH. The delay time
can be set by the user with an external capacitor at pin D according to the requirements
of the application.
The Power Good circuitry supervises the output voltage. In case
V
Q
falls below the lower
Power Good switching threshold
V
Q,pgt-d
the PG output is set LOW after the Power Good
reaction time. The Power Good LOW signal is generated down to an output voltage
V
Q
to 1 V. A LOW signal at the Power Good pin informs that the battery was lost and
memory is no longer valid.
The feature should be used in combination with a microcontroller with internal reset.
Figure 1
Block Diagram
AEB02823
Current
and
Saturation
Control
Band-
Gap-
Reference
TLE 4290
Power
Good
Control
PG
Q
I
D
GND
1
5
2
4
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相關(guān)代理商/技術(shù)參數(shù) |
參數(shù)描述 |
|---|---|
| TLE4290DATMA1 | 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 0.4A TO252-5 |
| TLE4290DNTMA1 | 制造商:Infineon Technologies AG 功能描述:LDO Regulator Pos 5V 0.45A 5-Pin(4+Tab) TO-252 制造商:Infineon Technologies AG 功能描述:LINEAR VOLTAGE REGULATOR - Tape and Reel |
| TLE4290DXT | 功能描述:低壓差穩(wěn)壓器 - LDO 5-V Low Drop 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 |
| TLE4290G | 功能描述:低壓差穩(wěn)壓器 - LDO 5V LW Drop VOLT REGULATOR 200mA 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 |
| TLE4290GATMA1 | 制造商:Infineon Technologies AG 功能描述:LDO Regulator Pos 5V 0.45A 6-Pin(5+Tab) TO-263 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 0.4A TO263-5 |
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