LTC3305_15 Datasheet, PDF (17/28 Pages) Linear Technology – Lead-Acid Battery Balancer

LTC3305
Operation
10µF
25V
CM
CP
V_REG
1µF
EN1
6V
EN2
BOOST
MODE
V4
100k EACH
10nF
100nF
TERM1
TERM2
UVFLT
OVFLT
DONE
BAL
PTCFLT
BATX
BATY
CTON
NGATE4
V3
LTC3305
V2
CTOFF
V1
22nF
27.4k
CTBAT
V_L
8
NGATE1-3, 5-9
V_H
42.2k
I_SET
12.1k
GND
AUXP
AUXN
3305 F04
ALL NMOS SWITCHES = SiR882DP
D2
D1, D2 = CMMSH1-100
249Ω 1.33k
D1
10µF
25V
6.04k
10µF
25V
6.04k
10µF
25V
10µF
NGATE6
25V
6.04k
NGATE7
PTC
+
10µF
AUX
25V
6.04k
6.04k
NGATE8
NGATE5
NGATE3 ₊
BAT3
NGATE2 ₊
6.04k
BAT2
NGATE1 ₊
6.04k
BAT1
6.04k
NGATE9
Figure 4. Three-Battery Application Showing External Switch Arrangement
For more information www.linear.com/LTC3305
3305f
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