参数资料
型号: MAX8900DEWV+T
厂商: Maxim Integrated Products
文件页数: 21/35页
文件大小: 0K
描述: IC LI BATTERY CHARGER 1.2A WLP
产品培训模块: Lead (SnPb) Finish for COTS
Obsolescence Mitigation Program
标准包装: 2,500
功能: 充电管理
电池化学: 锂离子(Li-Ion)、锂聚合物(Li-Pol)
电源电压: 3.4 V ~ 6.3 V
工作温度: -40°C ~ 85°C
安装类型: 表面贴装
封装/外壳: 30-WFBGA,WLBGA
供应商设备封装: 30-WLP
包装: 带卷 (TR)
MAX8900A/MAX8900B/MAX8900C
1.2A Switch-Mode Li+ Chargers with ±22V Input
Rating and JEITA Battery Temperature Monitoring
NO PWR OR
CHARGER DISABLED
STAT1 = HI-Z
STAT2 = HI-Z
CEN = LOGIC-HIGH
OR T J > T SHDN
V IN > V UVLO
AND V IN > V BAT + V IN2BAT
AND T J < T SHDN
(SET TIMER = 0)
I BAT = 0
V IN < V UVLO
OR < V BAT + V IN2BAT
ANY STATE
DEAD BAT
STAT1 = LOW
STAT2 = HI-Z
V IN TOO HIGH
STAT1 = HI-Z
I BAT = I DBAT
TIMER > t PQ
STAT2 = LOW
I BAT = 0
V BAT < V PQLTH
V BAT > V PQLTH
V IN < V OVLO
TIMER = RESUME
V IN > V OVLO
TIMER = SUSPEND
DEAD BAT +
PREQUAL
STAT1 = LOW
STAT2 = HI-Z
I BAT = I DBAT + I PQ
TIMER > t PQ
ANY CHARGING STATE
V BAT < V DBAT
V BAT > V DBAT
T1 < THERMISTOR < T4
TIMER = RESUME
(DEAD BAT, PREQUAL,
FAST CHG,
OR TOP-OFF)
THERMISTOR > T4 OR
THERMISTOR < T1
TIMER = SUSPEND
BATTERY COLD/
BATTERY HOT
STAT1 = HI-Z
STAT2 = LOW
I BAT = 0 IF V BAT > V DBAT
V BAT < V PQUTH
(SET TIMER = 0)
PREQUAL
STAT1 = LOW
STAT2 = HI-Z
I BAT = I PQ
V BAT > V PQUTH
SOFT-START
(SET TIMER = 0)
FAST CHG
STAT1 = LOW
STAT2 = HI-Z
I BAT = I FC
TIMER > t PQ
TIMER > t FC
TIMER FAULT
STAT1 = HI-Z
STAT2 = LOW
I BAT = 0
I BAT > I DN + 1mA
(SET TIMER = 0)
I BAT < I DN
Figure 8. Charger State Diagram (2-Pin Status)
Maxim Integrated
TIMER > t TO
TOP-OFF
STAT1 = LOW
STAT2 = HI-Z
DONE
STAT1 = HI-Z
STAT2 = HI-Z
I BAT = 0
V BAT < V RSTRT
NO SOFT-START
(SET TIMER = 0)
21
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