MAX8900BEWV+T Maxim Integrated Products, MAX8900BEWV+T Datasheet - Page 20

• Manufacturer Part Number: MAX8900BEWV+T
• Description: IC LI-ION/POLY BATT CHRGR 30WLP
• Manufacturer: Maxim Integrated Products

Specifications of MAX8900BEWV+T

• Function: Battery Monitor
• Battery Type: Lithium-Ion (Li-Ion), Lithium-Polymer (Li-Pol)
• Voltage - Supply: 3.4 V ~ 8.7 V
• Operating Temperature: -40°C ~ 85°C
• Mounting Type: Surface Mount
• Package / Case: 30-WLP
• Lead Free Status / RoHS Status: Lead free / RoHS Compliant

1.2A Switch-Mode Li+ Chargers with ±22V Input
Rating and JEITA Battery Temperature Monitoring
Figure 7. Charger State Diagram (3-Pin Status)
20
TIMER = RESUME
V
IN
TIMER = SUSPEND
TIMER = SUSPEND
THERMISTOR < T1
THERMISTOR > T4
< V
OVLO
ANY CHARGING STATE
I
I
BAT
BAT
(DEAD BAT, PREQUAL,
BATTERY COLD
V
BATTERY HOT
= 0 IF V
= 0 IF V
STAT1 = LOW
STAT2 = LOW
OR TOP-OFF)
STAT1 = LOW
STAT2 = LOW
STAT3 = LOW
STAT1 = LOW
STAT3 = HI-Z
STAT2 = HI-Z
STAT3 = HI-Z
IN
FAST CHG,
I
TOO HIGH
BAT
BAT
BAT
= 0
> V
> V
THERMISTOR < T4
THERMISTOR > T1
TIMER = RESUME
TIMER = RESUME
DBAT
DBAT
TIMER = SUSPEND
V
IN
> V
OVLO
AND V
IN
> V
AND T
(SET TIMER = 0)
I
(SET TIMER = 0)
BAT
(SET TIMER = 0)
V
V
BAT
V
BAT
BAT
V
BAT
> I
TIMER > t
IN
J
+ V
< V
DN
> V
< T
< V
< V
IN2BAT
PQUTH
+ 1mA
SHDN
PQLTH
UVLO
CHARGER DISABLED
DBAT
TO
I
BAT
NO PWR OR
STAT1 = LOW
STAT3 = LOW
DEAD BAT +
STAT1 = LOW
STAT3 = LOW
STAT1 = LOW
STAT3 = LOW
STAT1 = LOW
STAT3 = LOW
STAT1 = LOW
STAT3 = LOW
STAT2 = LOW
STAT3 = LOW
STAT1 = HI-Z
STAT2 = HI-Z
STAT3 = HI-Z
STAT2 = HI-Z
STAT2 = HI-Z
STAT2 = HI-Z
STAT2 = HI-Z
STAT2 = HI-Z
STAT1 = HI-Z
I
DEAD BAT
FAST CHG
BAT
PREQUAL
PREQUAL
TOP-OFF
I
I
BAT
= I
BAT
I
I
BAT
DONE
BAT
DBAT +
= I
= I
= I
= 0
= 0
DBAT
PQ
FC
I
V
PQ
V
I
V
SOFT-START
(SET TIMER = 0)
BAT
BAT
BAT
BAT
< I
> V
> V
> V
DN
PQLTH
DBAT
PQUTH
CEN = LOGIC-HIGH
TIMER > t
OR T
OR < V
J
V
IN
> T
BAT
PQ
< V
SHDN
+ V
UVLO
V
NO SOFT-START
(SET TIMER = 0)
IN2BAT
BAT
TIMER > t
TIMER > t
< V
RSTRT
TIMER > t
TIMER FAULT
STAT3 = LOW
PQ
STAT1 = HI-Z
STAT2 = HI-Z
FC
ANY STATE
I
BAT
= 0
PQ