LTC3305_15 Datasheet, PDF (16/28 Pages) Linear Technology – Lead-Acid Battery Balancer

LTC3305
Operation
10µF
25V
ALL NMOS DEVICES = SiR882DP
D2
D1, D2 = CMMSH1-100
1µF
6V
100k EACH
CM
V_REG
EN1
EN2
MODE
CP
BOOST
NGATE6
TERM1
TERM2
UVFLT
OVFLT
DONE
BAL
PTCFLT
BATX
BATY
V4
4
NGATE1-4
V3
LTC3305
V2
CTON
10nF
V1
CTOFF
100nF
CTBAT
22nF
4
NGATE5, 7, 8, 9
249Ω 1.33k
D1
22µF
25V
6.04k
10µF
25V
10µF
25V
NGATE7
NGATE5
6.04k
+
BAT2
+
BAT1
V_L
27.4k
V_H
42.2k
I_SET
12.1k
AUXP
PTC
10µF
25V
+
AUX
AUXN
GND
6.04k
NGATE8
3305 F03
NGATE9
6.04k
Figure 3. Two-Battery Application Showing External Switch Arrangement
3305f
16
For more information www.linear.com/LTC3305