参数资料
型号: MAX8934AETI+T
厂商: Maxim Integrated Products
文件页数: 27/32页
文件大小: 0K
描述: IC BATTERY CHARGER DUAL 28TQFN
产品培训模块: Lead (SnPb) Finish for COTS
Obsolescence Mitigation Program
标准包装: 2,500
系列: Smart Power Selector™
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: 4.1 V ~ 6.6 V
工作温度: -40°C ~ 85°C
安装类型: 表面贴装
封装/外壳: 28-WFQFN 裸露焊盘
供应商设备封装: 28-TQFN-EP(4x4)
包装: 带卷 (TR)
MAX8934A–MAX8934E
Dual-Input Linear Chargers, Smart Power Selector
with Advanced Battery Temperature Monitoring
CEN = HIGH
NOT READY
UOK AND DOK = HIGH-Z
CHG = HIGH-Z
FLT = HIGH-Z
OR
REMOVE AND RECONNECT
THE INPUT SOURCE(S)
ANY STATE
DONE = HIGH-Z
I CHG = 0mA
TOGGLE CEN
STATE DIAGRAM IS FOR 10 N C < TEMP < +45 N C,
OUTSIDE OF THIS RANGE SEE FIGURE 7
UOK OR DOK = LOW
CEN = 0
RESET TIMER
PREQUAL
UOK OR DOK = LOW
CHG = LOW
FLT = HIGH-Z
DONE = HIGH-Z
0V P V BATT P 3V
I CHG = I CHGMAX 10
TIMER > t PQ
OR REMOVE AND RECONNECT
THE INPUT SOURCE(S)
V BATT < 2.82V,
RESET TIMER
V BATT > 3V,
RESET TIMER
FAULT
UOK AND DOK = LOW
CHG = HIGH-Z
FLT = LOW
FAST-CHARGE
UOK OR DOK = LOW
CHG = LOW
DONE = HIGH-Z
I CHG = 0mA
V BATT < 2.82V
RESET TIMER
(PQ, FC, TOP-OFF)
ANY CHARGING
STATE
FLT = HIGH-Z
DONE = HIGH-Z
3V P V BATT P 4.2V
I CHG = I CHGMAX
I CHG < I DONE
AND V BATT = 4.2V
AND THERMAL
I CHG > I DONE OR OUTPUT LIMIT
RESET TIMER NOT EXCEEDED
RESET TIMER
TOP-OFF
UOK OR DOK = LOW
CHG = HIGH-Z
TIMER > t FC
(TIMER SLOWED BY 2X IF
I CHG < I CHGMAX /2, AND
PAUSED IF I CHG < I CHGMAX /5
WHILE BATT < 4.2V)
V THM_T1 < V THM < V THM_T4
TIMER RESUME
V THMT1 > V THM > V THMT4
TIMER SUSPEND
FLT = HIGH-Z
DONE = HIGH-Z
BATT = 4.2V
V BATT < 4.1V
RESET TIMER
I CHG = I DONE
TEMPERATURE
SUSPEND
I CHG = 0mA
UOK OR DOK = PREVIOUS STATE
CHG = HIGH-Z
FLT = HIGH-Z
DONE = HIGH-Z
TIMER > 15s (MAX8934A/MAX8934C
/MAX8934E)
TIMER > 60min (MAX8934B/MAX8934D)
DONE
V THM > V THM_OT
OVERTEMP
OT = LOW
V THM < V THM_OT
AND NOT CHARGING
(SEE TABLES 2a and 2b)
UOK OR DOK = LOW
CHG = HIGH-Z
FLT = HIGH-Z
DONE = LOW
4.1V < V BATT < 4.2V
I CHG = 0mA
Figure 8. Charger State Diagram
Maxim Integrated
27
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MAX8934CETI+ 制造商:Maxim Integrated Products 功能描述:IC BATTERY CHARGER DUAL 28TQFN 制造商:Maxim Integrated Products 功能描述:IC, BATTERY CHARGER, DUAL, 28TQFN