LTC1479 LINER [Linear Technology], LTC1479 Datasheet - Page 9

• Manufacturer Part Number: LTC1479
• Description: PowerPath Controller for Dual Battery Systems
• Manufacturer: LINER [Linear Technology]

TI I G DIAGRA S
DCINGOOD
DCIN/BAT
DCIN/BAT
OUTPUT
BATDIS
OUTPUT
CHGSEL
LOBAT
BATSEL
W
BATDIS
DCIN
3DM
DCIN
25V
25V
25V
25V
0V
0V
0V
0V
U
NOTE: FOR MODES 1 TO 6, 3DM = H, BAT1 = 16V, BAT2 = 12V
BAT1 DISCONNECTED
NOTE: FOR MODES 7 TO 12, BATSEL = H, BAT1 = 16V AND DISCHARGING, BAT2 = 0V
DISCONNECTED
DC OPERATION
BAT1 LOW &
MODE 1
MODE 7
BAT1
DISCHARGING
(V
W
BAT1 CHARGING
BKUP
DC OPERATION
OPERATION
BACKUP
MODE 8
MODE 2
= 6V)
Backup and DC Restoration Timing
DC and Battery Operation Timing
BAT2 DISCONNECTED
DC OPERATION
(NO BACKUP)
NO POWER
MODE 9
MODE 3
(0V)
(THREE DIODE MODE)
BAT2 CHARGING
DC OPERATION
DC RESTORED
MODE 10
(24.3V)
MODE 4
DC RECONNECTED
BAT1 OPERATION
(SW A/B ON)
MODE 11
(16V)
MODE 5
(25V)
LTC1479
THREE DIODE MODE
BAT2 OPERATION
MODE 12
(24.3V)
MODE 6
(12V)
1479 TD01
1479 TD02
9