Datasheet

16 Maxim Integrated
1.2A Switch-Mode Li+ Chargers with ±22V Input
Rating and JEITA Battery Temperature Monitoring
MAX8900A/MAX8900B/MAX8900C
Figure 3. Functional Diagram
T
MAX8900_
PGND GND
STAT1: D1
BV = 30V
STAT2: C1
BV = 30V
STAT3: D1
BV = 6V
GND: E6
CT: E3
CEN: C2
PVL: A6
AVL: E5
SETI: E2
DNI: E1
THM: E4
R
CEN
R
AVL
12.5I
V
DBAT
R
SNS
R
LS
R
HS
V
IN2BAT
V
UVLO
V
OVLO
PVL
AVL
IBAT
BAT
BAT_I
BAT_V
BAT_T
BAT
BAT: B1
BAT: A1
CS: B2
CS: A2
PGND: B6
PGND: B5
PGND: B4
PGND: A4
LX: B3
LX: A3
BST: A5
INBP: C6
INBP: C5
INBP: C4
INBP: C3
IN: D6
IN: D5
IN: D4
IN: D3
IBAT
PVL
PVL
BAT
LI2B
UVLO
OVLO
REVERSE-
INPUT
PROTECTION
LOW IN TO
BAT
VOLTAGE
DC-DC
CHARGE
CONTROLLER
LOGIC
CTS
CHARGER
TIMER
INPUT
OVERVOLTAGE
INPUT
UNDERVOLTAGE
COLD: T1
THERMOMETER
DECODE LOGIC
DEAD-BATTERY
CHARGER (I
DBAT
)
DIE
TEMPERATURE
COOL: T2
WARM: T3
HOT: T4
BAT_T
BAT_T
DIE_T
DRV_OUT
FC_I
PQ_I
TO_I
SHDN
AVL
AVL IS THE
INTERNAL
ANALOG SUPPLY
IN
IN
IN
IN
OUT
EN
5V 30mA
LDO
ENOUT