LTC3305_15 Datasheet, PDF (24/28 Pages) Linear Technology – Lead-Acid Battery Balancer

LTC3305
Applications Information
100k 100k 100k 100k 100k 100k 100k
TO
µP
2.43k 2.43k 2.43k 2.43k 2.43k 2.43k 2.43k
CPC1301G
100k 100k 100k 100k 100k 100k 100k
TO
µP
2.43k 2.43k 2.43k 2.43k 2.43k 2.43k 2.43k
CPC1301G
VREG
EN1
1µF
EN2
6V
MODE
TERM1
TERM2
UVFLT
OVFLT
DONE
BAL
PTCFLT
BATX
BATY
CTON
CTOFF
10nF
CTBAT
20k
VL
32.4k
VH
8.06k
ISET
VREG
EN1
1µF
EN2
6V
MODE
TERM1
TERM2
UVFLT
OVFLT
DONE
BAL
PTCFLT
BATX
BATY
CTON
CTOFF
10nF
CTBAT
20k
VL
32.4k
VH
8.06k
ISET
3.3V
100k 100k 100k 100k 100k 100k 100k
1µF
6V
TO
µP
VREG
EN1
EN2
MODE
TERM1
TERM2
UVFLT
OVFLT
DONE
BAL
PTCFLT
BATX
BATY
CTON
CTOFF
CTBAT
10nF
VL
20k
VH
32.4k
ISET
8.06k
10µF
25V
ALL NMOS DEVICES = SiR882DP
D1, D2, D3, D4, D5, D6 = CMMSH1-100
CM
CP
D6
249Ω
1.33k
BOOST
10µF
D5
25V
V4
10µF
25V
V3
10µF
25V
LTC3305
V2
10µF
25V
V1
NGATE1-9
10µF
NGATE6C
25V
9 NGATE1C-9C
NGATE7C
AUXP
AUXN
PTC
10µF
25V
+
AUX3
5.49k
5.49k
NGATE5C
5.49k
NGATE4C
2.74k
NGATE3C
5.49k
5.49k
NGATE2C
5.49k
NGATE1C
5.49k
NGATE8C
GND
10µF
25V
CM
CP
BOOST
V4
V3
V2
LTC3305
V1
NGATE1-9
AUXP
AUXN
5.49k
NGATE9C
D4
249Ω
10µF
25V
10µF
25V
10µF
25V
1.33k
D3
5.49k
NGATE5B
5.49k
NGATE4B
2.74k
NGATE3B
10µF
25V
10µF
NGATE6B
25V
9 NGATE1B-9B
NGATE7B
PTC
10µF
25V
+
AUX2
5.49k
5.49k
5.49k
NGATE8B
NGATE2B
5.49k
NGATE1B
5.49k
GND
10µF
25V
CM
CP
BOOST
V4
V3
V2
LTC3305
V1
NGATE1-9
AUXP
AUXN
GND
5.49k
NGATE9B
D2
249Ω
10µF
25V
10µF
25V
1.33k
D1
10µF
25V
5.49k
NGATE5A
5.49k
NGATE4A
2.74k
NGATE3A
10µF
25V
10µF
25V
NGATE6A
9 NGATE1A-9A
NGATE7A
PTC
5.49k
5.49k
10µF
+
25V
AUX1 5.49k
NGATE8A
NGATE2A
5.49k
NGATE1A
5.49k
5.49k
NGATE9A
+
BAT8
+
BAT7
+
BAT6
+
BAT5
+
BAT4
+
BAT3
+
BAT2
+
BAT1
3305 F07
24
Figure 9. Three LTC3305 Devices Connected to Balance Eight Lead-Acid Batteries
For more information www.linear.com/LTC3305
3305f