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參數(shù)資料
| 型號： | ADP3170JRU |
| 廠商： | ANALOG DEVICES INC |
| 元件分類： | 穩(wěn)壓器 |
| 英文描述： | VRM 8.5 Compatible Single Phase Core Controller |
| 中文描述： | SWITCHING CONTROLLER, PDSO20 |
| 封裝： | TSSOP-20 |
| 文件頁數(shù)： | 2/16頁 |
| 文件大?。?/td> | 183K |
| 代理商： | ADP3170JRU |
REV. 0
–2–
ADP3170–SPECIFICATIONS
1
Parameter
Symbol
Conditions
Min
T yp
Max
Unit
FEEDBACK INPUT
Output Accuracy
1.05 V Output
1.5 V Output
1.825 V Output
Line Regulation
Input Bias Current
Crowbar Trip Point
Crowbar Reset Point
Crowbar Response Time
V
FB
Figure 1
Figure 1
Figure 1
VCC = 10 V to 14 V
1.039
1.485
1.807
1.05
1.5
1.825
0.06
5
120
50
400
1.061
1.515
1.843
V
V
V
%
nA
%
%
ns
V
OUT
I
FB
V
CROWBAR
50
125
60
% of Nominal DAC Voltage
% of Nominal DAC Voltage
Overvoltage to DRVL Going High
115
40
t
CROWBAR
REFERENCE
Output Voltage
Output Current
V
REF
I
REF
2.937
300
3.0
3.048
V
μ
A
VID INPUTS
Input Low Voltage
Input High Voltage
Input Current
Pull-up Resistance
Internal Pull-up Voltage
V
IL(VID)
V
IH(VID)
I
VID
R
VID
0.8
V
V
μ
A
k
V
2.3
VID(X) = 0 V
300
16
3.1
425
2.75
3.4
SHUTDOWN INPUT
Input Low Voltage
Input High Voltage
Input Current
V
IL(SD)
V
IH(SD)
I
SD
0.8
V
V
μ
A
2.0
1
OSCILLATOR
Off Time
CT Charge Current
T
A
= 25
°
C, CT = 200 pF
T
A
= 25
°
C, V
OUT
in Regulation
T
A
= 25
°
C, V
OUT
= 0 V
3.5
130
25
4.0
150
35
4.5
170
45
μ
s
μ
A
μ
A
I
CT
ERROR AMPLIFIER
Output Resistance
Transconductance
Output Current
Maximum Output Voltage
Output Disable Threshold
–3 dB Bandwidth
R
O(ERR)
g
m(ERR)
I
O(ERR)
V
COMP(MAX)
V
COMP(OFF)
BW
ERR
1
2.2
625
3.0
750
500
M
mmho
μ
A
V
mV
kHz
2.05
2.35
FB = 0
FB Forced to V
OUT
– 3%
600
900
COMP = Open
CURRENT SENSE
Threshold Voltage
V
CS(TH)
FB Forced to V
OUT
– 3%
FB
≤
0.45 V
0.8 V
≤
COMP
≤
1 V
CS+ = CS– = V
OUT
CS+ – (CS–)
>
87 mV
to DRVH going low
69
35
78
45
1
0.5
50
87
54
5
5
mV
mV
mV
μ
A
ns
Input Bias Current
Response Time
I
CS+
, I
CS–
t
CS
OUTPUT DRIVERS
Output Resistance
Output Transition Time
R
O(DRV[X])
t
R
, t
F
I
L
= 50 mA
C
L
= 3000 pF
4.5
75
ns
LINEAR REGULATOR
Feedback Current
LR Feedback Voltage
Driver Output Voltage
I
LRFB
V
LRFB
V
LRDRV
0.3
1.8
1
1.85
μ
A
V
V
Figure 2, VCC = 4.5 V to 12.6 V
VCC = 4.5 V, V
LRFB(X)
= 0 V
1.75
4.2
(VCC = 12 V, I
REF
= 150 A, T
A
= 0 C to 70 C, unless otherwse noted.)
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