LTC6102/LTC6102HV
TYPICAL APPLICATIONS
Bidirectional Current Sense Circuit with Separate Charge/Discharge Output
CHARGER
IDISCHARGE
RSENSE
ICHARGE
RIN D
100
+IN
L
O
V–
A
D
RIN D
–INS 100
–INF
V+
VREG 0.1μF
RIN C
100 –INS
–INF
V+
0.1μF VREG
–+
RIN C
100
+IN
V–
VBATT
LTC6102
OUT
ROUT D
4.99k
+
VOUT D
–
+
VOUT C
–
OUT
ROUT C
4.99k
( ) DISCHARGING:
VOUT D = IDISCHARGE • RSENSE
ROUT D
RIN D
WHEN IDISCHARGE ≥ 0
( ) CHARGING:
VOUT C = ICHARGE • RSENSE
ROUT C
RIN C
WHEN ICHARGE ≥ 0
LTC6102
6102 TA02
LTC6102 Monitors Its Own Supply Current
ILOAD
RSENSE
+IN
L
O
A
D
V–
R1
100
–INS
ISUPPLY
–INF
V+
VREG 0.1μF
VBATT
LTC6102
OUT
R2
4.99k
( ) VOUT = 49.9 • RSENSE ILOAD + ISUPPLY
+
VOUT
–
6102 TA03
6102fb
16