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參數資料
| 型號： | LTC6103 |
| 廠商： | Linear Technology Corporation |
| 英文描述： | 36V Low Cost High Side Current Sense in a SOT-23 |
| 中文描述： | 36V的低成本高端電流檢測采用SOT - 23 |
| 文件頁數： | 6/12頁 |
| 文件大?。?/td> | 248K |
| 代理商： | LTC6103 |
LT6106
6
6106fa
BLOCK DIAGRAM
PIN FUNCTIONS
OUT (Pin 1):
Current Output. OUT will source a current
that is proportional to the sense voltage into an external
resistor.
V
–
(Pin 2):
Normally Connected to Ground.
–IN (Pin 3):
The internal sense amplifier will drive –IN to
the same potential as +IN. A resistor (R
IN
) tied from V
+
to –IN
sets the output current I
OUT
= V
SENSE
/R
IN
. V
SENSE
is the voltage developed across R
SENSE
.
+IN (Pin 4):
Must be tied to the system load end of the
sense resistor, either directly or through a resistor.
V
+
(Pin 5):
Positive Supply Pin. The V
+
pin should be con-
nected directly to either side of the sense resistor, R
SENSE
.
Supply current is drawn through this pin. The circuit may
be configured so that the LT6106 supply current is or is
not monitored along with the system load current. To
monitor only the system load current, connect
V
+
to the
more positive side of the sense resistor. To monitor the
total current, including that of the LT6106, connect
V
+
to
the more negative side of the sense resistor.
–
+
V
+
V
–
OUT
6106 F01
V
BATTERY
I
OUT
V
SENSE
R
SENSE
I
LOAD
R
OUT
–
+
L
O
A
D
V
OUT
= V
SENSE
R
OUT
R
IN
14k
14k
–IN
+IN
5
2
1
3
4
R
IN
Figure 1. LT6106 Block Diagram and Typical Connection
TYPICAL PERFORMANCE CHARACTERISTICS
V
SENSE
(mV)
0
V
O
4
8
12
2
6
10
40
80
120
160
6106 G21
200
20
0
60
100
140
180
V
+
= 12V
A
V
= 100
R
IN
= 100Ω
R
OUT
= 10k
V
SENSE
(mV)
0
V
O
4
8
12
2
6
10
200
400
600
800
6106 G22
1000
100
0
300
500
700
900
V
+
= 12V
A
V
= 20
R
IN
= 500Ω
R
OUT
= 10k
Supply Current vs Supply Voltage
SUPPLY VOLTAGE (V)
0
0
S
20
60
80
100
10
20
25
45
6106 G01
40
5
15
30
35
40
120
T
A
= –40°C
T
A
= 25°C
T
A
= 70°C
T
A
= 125°C
Output Voltage vs Input Sense
Voltage (0mV ≤ V
SENSE
≤ 1V)
Output Voltage vs Input Sense
Voltage (0mV ≤ V
SENSE
≤ 200mV)
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