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參數(shù)資料
| 型號(hào)： | 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)： | 9/18頁 |
| 文件大小： | 210K |
| 代理商： | TLE4290D |
Data Sheet Rev. 1.4
9
2001-10-18
TLE 4290
The power good circuit supervises the output voltage. In case
V
Q
falls below the Power
Good switching threshold the Power Good output PG 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is no longer valid.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 only be used in combination to a microcontroller with internal reset.
For the power good 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 Power Good delay time is defined by the charging time of an external delay
capacitor
C
D
.
C
D
= (
t
rd
×
I
D,c
) /
V
With
C
D
Power Good delay capacitor
t
rd
Power Good delay time
V
=
V
DU
, typical 1.8 V
I
D,c
Charge current typical 6
μ
A
Figure 5
Power Good Timing
AED03074
Thermal
Shutdown
t
rd
Power-on
Power Good
Signal
Voltage Dip
at Input
Secondary
Spike
Overload
at Output
V
DL
V
Ι
V
D
V
PG
D, c
C
D
Ι
=
V
d
dt
V
Q
t
rr
<
rr
t
V
DU
Undervoltage
Q,pgt_d
V
Q,pgt_i
V
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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(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 |
| 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(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 |
| 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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