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參數(shù)資料
| 型號： | NCV8184DT |
| 廠商： | ON SEMICONDUCTOR |
| 元件分類： | 基準(zhǔn)電壓源/電流源 |
| 英文描述： | Micropower 70 mA Low Dropout Tracking Regulator/Line Driver |
| 中文描述： | ADJUSTABLE POSITIVE LDO REGULATOR, 0.6 V DROPOUT, PSSO4 |
| 封裝： | DPAK-5 |
| 文件頁數(shù)： | 7/14頁 |
| 文件大?。?/td> | 143K |
| 代理商： | NCV8184DT |
NCV8184
http://onsemi.com
7
APPLICATION NOTES
V
OUT
Short to Battery
The NCV8184 will survive a short to battery when hooked
up the conventional way as shown in Figure 19. No damage
to the part will occur. The part also endures a short to battery
when powered by an isolated supply at a lower voltage as in
Figure 20. In this case the NCV8184 supply input voltage is
set at 7 V when a short to battery (14 V typical) occurs on
V
OUT
which normally runs at 5 V. The current into the
device (ammeter in Figure 20) will draw additional current
as displayed in Figure 21.
V
OUT
GND
GND
Adj
V
IN
GND
GND
V
REF
/
ENABLE
V
OUT
5.0 V
70 mA
C1*
1.0 F
Automotive Battery
typically 14 V
Short to battery
N
Figure 19.
C2**
10 F
V
OUT
GND
GND
Adj
V
IN
GND
GND
V
REF
/
ENABLE
V
OUT
C1*
1.0 F
N
Figure 20.
C2**
10 F
C3***
10 nF
V
OUT
= V
REF
5.0 V
+
Loads
B+
5.0 V
70 mA
Automotive Battery
typically 14 V
Short to battery
V
OUT
= V
REF
5.0 V
+
Loads
B+
C3***
10 nF
A
7 V
** C2 is required for stability.
*** C3 is recommended for EMC susceptibility.
* C1 is required if the regulator is far from the power source filter.
+
+
Figure 21. V
OUT
Short to Battery
18
16
14
12
10
6
4
2
0
6
5
10
15
20
25
V
OUT
VOLTAGE (V)
C
8
7 8 9
11121314
16171819
21222324
26
Switched Application
The NCV8184 has been designed for use in systems where
the reference voltage on the V
REF
/ENABLE pin is
continuously on. Typically, the current into the
V
REF
/ENABLE pin will be less than 1.0 A when the
voltage on the V
IN
pin (usually the ignition line) has been
switched out (V
IN
can be at high impedance or at ground.)
Reference Figure 22.
V
OUT
GND
GND
Adj
V
IN
GND
GND
V
REF
/
ENABLE
V
OUT
V
REF
5.0 V
V
BAT
C1
1.0 F
Ignition
Switch
< 1.0 A
N
Figure 22.
C2
10 F
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相關(guān)代理商/技術(shù)參數(shù) |
參數(shù)描述 |
|---|---|
| NCV8184DTRK | 功能描述:低壓差穩(wěn)壓器 - LDO 70mA Tracking 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 |
| NCV8184DTRKG | 功能描述:低壓差穩(wěn)壓器 - LDO 70mA Tracking 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 |
| NCV8184PDG | 功能描述:低壓差穩(wěn)壓器 - LDO 70mA SNGL TRCKNG REG 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 |
| NCV8184PDR2G | 功能描述:低壓差穩(wěn)壓器 - LDO 70mA SNGL TRCKNG REG 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 |
| NCV8401 | 制造商:ONSEMI 制造商全稱:ON Semiconductor 功能描述:Self-Protected Low Side Driver with Temperature and Current Limit |
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