lt6107mps5-trpbf Linear Technology Corporation, lt6107mps5-trpbf Datasheet - Page 6

• Manufacturer Part Number: lt6107mps5-trpbf
• Description: High Temperature High Side Current Sense Amp In Sot-23
• Manufacturer: Linear Technology Corporation

PIN FUNCTIONS
BLOCK DIAGRAM
LT6107
OUT (Pin 1): Current Output. OUT will source a current
that is proportional to the sense voltage into an external
resistor.
V
–IN (Pin 3): The internal sense amplifi er will drive –IN to
the same potential as +IN. A resistor (R
–IN sets the output current I
the voltage developed across R
+IN (Pin 4): Must be tied to the system load end of the
sense resistor, either directly or through a resistor.
TYPICAL PERFORMANCE CHARACTERISTICS
6
–
12
10
(Pin 2): Normally Connected to Ground.
8
6
4
2
0
Output Voltage vs Input Sense
Voltage (0mV ≤ V
0
V
A
R
R
+
V
IN
OUT
20
= 12V
= 100
= 100Ω
= 10k
40
60
V
80
SENSE
I
LOAD
100
SENSE
L
O
A
D
(mV)
120
–
140
≤ 200mV)
V
R
SENSE
SENSE
160
OUT
+
180
SENSE
6107 G21
R
= V
IN
200
3
4
Figure 1. LT6107 Block Diagram and Typical Connection
SENSE
–IN
+IN
.
IN
) tied from V
/R
12
10
IN
8
6
4
2
0
14k
14k
0
Output Voltage vs Input Sense
Voltage (0mV ≤ V
. V
V
A
R
R
+
V
IN
OUT
100
SENSE
= 12V
= 20
= 500Ω
= 10k
200
+
300
to
is
–
400
+
V
SENSE
500
V
nected directly to either side of the sense resistor, R
Supply current is drawn through this pin. The circuit may
be confi gured so that the LT6107 supply current is or is
not monitored along with the system load current. To
monitor only the system load current, connect V
more positive side of the sense resistor. To monitor the
total current, including that of the LT6107, connect V
the more negative side of the sense resistor.
SENSE
5
2
(mV)
+
V
V
600
+
–
(Pin 5): Positive Supply Pin. The V
700
≤ 1V)
V
800
BATTERY
900
6107 G22
OUT
1000
6107 F01
1
I
OUT
R
OUT
120
100
80
60
40
20
0
V
Supply Current vs Supply Voltage
OUT
0
= V
5
SENSE
10
SUPPLY VOLTAGE (V)
•
15
R
R
OUT
+
IN
pin should be con-
20
25
30
T
T
T
T
T
T
T
35
+
A
A
A
A
A
A
A
= –55°C
= –40°C
= 25°C
= 70°C
= 125°C
= 150°C
= 175°C
SENSE
to the
40
6107fb
6107 G01
+
to
45
.