Datasheet

LTC6103
14
6103f
TYPICAL APPLICATIONS
Intelligent High Side Switch with Current Monitor
48V Supply Current Monitor with Isolated Output
and 70V Survivability
±10A Differential Output Bidirectional Current Monitor
+
200ΩV
BATT
6103 TA02
DIFFERENTIAL OUTPUT*
±2.5V FS (+ IS CHARGE CURRENT)
OUTPUT SWING MAY BE LIMITED FOR
V
BATT
BELOW 6V
+
–
200Ω
4.99k
4V < V
BATT
< 60V
+OUTPUT MAY BE TAKEN SINGLE ENDED
AS CHARGE CURRENT MONITOR
–OUTPUT MAY BE TAKEN SINGLE ENDED
AS DISCHARGE CURRENT MONITOR
*
CHARGERLOAD
10mΩ
+
–
+
–
8 7 6 5
241
+INA
OUTA OUTB
V
SB
V
SA
LTC6103
–INA –INB +INB
V
–
4.99k
5A Absolute Value Bidirectional Current Monitor
6103 TA06
FAULT
OFF ON
15
4.99k
V
O
R
S
3
4
47k
2
8
6
100Ω
1%
10µF
63V
1µF
14V
V
LOGIC
SUB85N06-5
V
O
= 49.9 • R
S
• I
L
FOR R
S
= 5mΩ,
V
O
= 2.5V AT I
L
= 10A (FULL SCALE)
LT1910
1/2
LTC6103
I
L
V
–
OUT
–IN
+IN
LOAD
6103 TA07
1/2
LTC6103
R
IN
V
–
V
SENSE
R
SENSE
I
SENSE
LOAD
V
OUT
= V
LOGIC –
I
SENSE
• • N • R
OUT
R
SENSE
R
IN
N = OPTOISOLATOR CURRENT GAIN
V
S
ANY OPTOISOLATOR
R
OUT
V
OUT
V
LOGIC
V
+
V
–
OUT
–IN +IN
+
+
–
–
+
20mΩ
V
BATT
6103 TA03
200Ω200Ω
4.99k
V
OUT
2.5V FS
CHARGERLOAD
+
–
+
–
8 7 6 5
241
+INA
OUTA OUTB
V
SB
V
SA
LTC6103
–INA –INB +INB
V
–