LTC3305_15 Datasheet, PDF (26/28 Pages) Linear Technology – Lead-Acid Battery Balancer

LTC3305
Applications Information
10µF
25V
V_REG
CM
1µF
EN1
6V
EN2
100k MODE
TERM1
TERM2
UVFLT
OVFLT
DONE
BAL
PTCFLT
BATX
BATY
CP
BOOST
V4
V3
V2
CTON
LTC3305
D4
249Ω
10µF
25V
10µF
25V
10µF
25V
ALL NMOS
DEVICES = SiR892DP
D1, D2, D3, D4 = CMMSH1-100
1.33k
D3
6.04k
NGATE5B
6.04k
NGATE4B
3.01k
NGATE3B
10µF
NGATE2B
25V
6.04k
+
BAT8
+
BAT7
+
BAT6
CTOFF
10nF
CTBAT
V_L
V_H
12.1k _ISET
V1
9
NGATE1-9
NGATE1B-9B
NGATE6B
10µF
25V
NGATE7B
6.04k
6.04k
AUXP
AUXN
PTC
10µF
25V
+
AUX2
6.04k
NGATE8B
GND
6.04k
NGATE9B
NGATE1B
6.04k
+
BAT5
10µF
25V
V_REG
CM
1µF
EN1
6V
EN2
100k MODE
TERM1
TERM2
UVFLT
OVFLT
DONE
CP
BOOST
V4
V3
BAL
PTCFLT
BATX
BATY
V2
CTON
LTC3305
D2
249Ω
10µF
25V
1.33k
D1
10µF
25V
10µF
25V
10µF
25V
6.04k
NGATE5A
6.04k
NGATE4A
+
BAT4
3.01k
NGATE3A
+
BAT3
NGATE2A
6.04k
+
BAT2
CTOFF
10nF _CTBAT
V_L
V_H
12.1k _ISET
V1
NGATE1-9
10µF
9
25V
NGATE1A-9A
NGATE6A
6.04k
NGATE7A
6.04k
AUXP
10µF
25V
AUXN
PTC
+
AUX1
6.04k
NGATE8A
GND
3305 F11
6.04k
NGATE9A
NGATE1A
6.04k
+
BAT1
Figure 11. Eight Battery Balancer Using Two LTC3305 Devices
3305f
26
For more information www.linear.com/LTC3305