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參數(shù)資料
| 型號： | LM2931ACDR2 |
| 英文描述： | VOLT REGULATOR|ADJUSTABLE|+1.24 TO +29V|BIPOLAR|SOP|8PIN|PLASTIC |
| 中文描述： | 電壓調(diào)節(jié)器|調(diào)節(jié)| 1.24 29V |雙極|專科| 8引腳|塑料 |
| 文件頁數(shù)： | 5/20頁 |
| 文件大小： | 209K |
| 代理商： | LM2931ACDR2 |
LM2931 Series
http://onsemi.com
5
ELECTRICAL CHARACTERISTICS
(V
in
= 14 V, I
O
= 10 mA, C
O
= 100
μ
F, C
O(ESR)
= 0.3
, T
J
= 25
°
C [Note 6])
LM2931C
LM2931AC
Characteristic
Symbol
Min
Typ
Max
Min
Typ
Typ
Unit
ADJUSTABLE OUTPUT
Reference Voltage (Note 7, Figure 18)
I
O
= 10 mA, T
J
= 25
°
C
I
O
≤
100 mA, T
J
= –40 to +125
°
C
Output Voltage Range
V
ref
V
1.14
1.08
1.20
–
1.26
1.32
1.17
1.15
1.20
–
1.23
1.25
V
O range
3.0 to
24
2.7 to
29.5
–
3.0 to
24
2.7 to
29.5
–
V
Line Regulation (V
in
= V
O
+ 0.6 V to 26 V)
Reg
line
–
0.2
1.5
–
0.2
1.5
mV/V
Load Regulation (I
O
= 5.0 mA to 100 mA)
Reg
load
–
0.3
1.0
–
0.3
1.0
%/V
Output Impedance
I
O
= 10 mA,
I
O
= 1.0 mA, f = 10 Hz to 10 kHz
Bias Current
I
O
= 100 mA
I
O
= 10 mA
Output Inhibited (V
th(OI)
= 2.5 V)
Adjustment Pin Current
Z
O
m
/
V
–
40
–
–
40
–
I
B
mA
–
–
–
6.0
0.4
0.2
–
–
–
–
6.0
0.4
0.2
–
1.0
1.0
1.0
1.0
I
Adj
–
0.2
–
–
0.2
–
μ
A
Output Noise Voltage (f = 10 Hz to 100 kHz)
V
n
–
140
–
–
140
–
μ
Vrms/V
Long–Term Stability
S
–
0.4
–
–
0.4
–
%/kHR
Ripple Rejection (f = 120 Hz)
RR
0.10
0.003
–
0.10
0.003
–
%/V
Dropout Voltage
I
O
= 10 mA
I
O
= 100 mA
Over–Voltage Shutdown Threshold
V
I
–V
O
V
–
–
0.015
0.16
0.2
0.6
–
–
0.015
0.16
0.2
0.6
V
th(OV)
26
29.5
40
26
29.5
40
V
Output Voltage with Reverse Polarity Input
(V
in
= –15 V)
–V
O
–0.3
0
–
–0.3
0
–
V
Output Inhibit Threshold Voltages
Output “On”:
V
th(OI)
V
T
J
= 25
°
C
T
J
= –40
°
to +125
°
C
T
J
= 25
°
C
T
J
= –40
°
to +125
°
C
–
–
2.15
–
2.26
–
1.90
1.20
–
–
–
–
2.15
–
2.26
–
1.90
1.20
–
–
Output “Off”:
2.50
3.25
2.50
3.25
Output Inhibit Threshold Current (V
th(OI)
= 2.5 V)
6. Low duty cycle pulse techniques are used during test to maintain junction temperature as close to ambient as possible.
7. The reference voltage on the adjustable device is measured from the output to the adjust pin across R
1
.
I
th(OI)
–
30
50
–
30
50
μ
A
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