ltc4078 Linear Technology Corporation, ltc4078 Datasheet - Page 8

• Manufacturer Part Number: ltc4078
• Description: Dual Input Li-ion Battery Charger With Overvoltage Protection
• Manufacturer: Linear Technology Corporation

BLOCK DIAGRAM
LTC4078/LTC4078X
8
ENABLE
CHRG
PWR
4
6
5
*TRICKLE CHARGE DISABLED ON THE LTC4078X
2M
DCIN
10
4.075V
4.15V
2.9V
0.9V
BAT
BAT
BAT
6V
TERMINATION
TRICKLE
CHARGE*
+
–
+
–
+
–
+
–
+
–
+
–
DCIN UVLO
DCIN OVLO
RECHARGE
–
+
0.1V
11
GND
REGULATOR
CC/CV
3
ITERM
R
I
ITERM
BAT
/1000
DC_ENABLE
TRICKLE
8
IDC
R
I
BAT
IDC
CHARGER CONTROL
/1000
BAT
9
USB_ENABLE
DISABLE
2
IUSB
R
I
BAT
IUSB
/1000
REGULATOR
CC/CV
USBIN UVLO
USBIN OVLO
REGULATION
THERMAL
+
–
+
–
+
–
+
–
+
–
V
BOC
1.75V
3.95V
BAT
6V
T
120°C
DIE
USBIN
1
4078X BD
7 BATDET
4078xfb