參數(shù)資料
型號(hào): LTC1921IMS8
廠商: LINEAR TECHNOLOGY CORP
元件分類(lèi): 電源管理
英文描述: Dual .48V Supply and Fuse Monitor
中文描述: 2-CHANNEL POWER SUPPLY SUPPORT CKT, PDSO8
封裝: PLASTIC, MSOP-8
文件頁(yè)數(shù): 3/12頁(yè)
文件大?。?/td> 177K
代理商: LTC1921IMS8
3
LTC1921
1921i
TYPICAL PERFOR U
Supply Current vs Supply Voltage
SUPPLY VOLTAGE (V)
0
S
μ
A
400
350
300
250
200
150
100
50
0
80
1921 G01
20
40
60
100
70
10
30
50
90
V
A
= V
B
= V
FUSEA
= V
FUSEB
TEMPERATURE (
°
C)
U
1921 G04
–37.5
–37.7
–37.9
–38.1
–38.3
–38.5
–38.7
–38.9
–39.1
–39.3
–39.5
–50
–30
–10
10
30
50
70
90
Undervoltage Threshold
vs Temperature
Supply Current vs Temperature
TEMPERATURE (
°
C)
–50
S
μ
A
100
I
A
+ I
B
I
A
, I
B
120
140
90
1921 G02
80
60
0
–30
–10
10
30
50
70
40
20
180
160
V
A
= –48V
V
B
= –48V
V
FUSEA
= –48V
V
FUSEB
= –48V
Undervoltage Recovery Threshold
vs Temperature
TEMPERATURE (
°
C)
–50
–30
–10
10
U
30
50
70
90
1921 G05
–42.5
–42.6
–42.7
–42.8
–42.9
–43.0
–43.1
–43.2
–43.3
–43.4
–43.5
Overvoltage Threshold
vs Temperature
TEMPERATURE (
°
C)
O
1921 G06
–68.0
–68.5
–69.0
–69.5
–70.0
–70.5
–71.0
–71.5
–72.0
–50
–30
–10
10
30
50
70
90
Overvoltage Hysteresis
vs Temperature
Fuse Window Positive Threshold
vs Temperature
Fuse Window Negative Threshold
vs Temperature
TEMPERATURE (
°
C)
O
1921 G07
1.50
1.45
1.40
1.35
1.30
1.25
1.20
1.15
1.10
1.05
1.00
–50
–30
–10
10
30
50
70
90
TEMPERATURE (
°
C)
F
1921 G08
2.7
2.5
2.3
2.1
1.9
1.7
1.5
–50
–30
–10
10
30
50
70
90
TEMPERATURE (
°
C)
F
1921 G09
–2.0
–2.2
–2.4
–2.6
–2.8
–3.0
–3.2
–50
–30
–10
10
30
50
70
90
Output R
DS(ON)
vs Temperature
TEMPERATURE (
°
C)
–50
O
D
)
20
25
30
10
50
1921 G03
15
10
–30
–10
30
70
90
5
0
OUT A (OUT F = 0V)
OUT F, OUT B (OUT A = 0V)
V
A
= –35V
V
= –35V
I = –10mA
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