参数资料
型号: MAX8939EWV+T
厂商: Maxim Integrated Products
文件页数: 18/45页
文件大小: 0K
描述: IC PWR MGMT HANDSETS 30WLP
标准包装: 2,500
应用: 充电泵,无线设备
输入电压: 2.9 V ~ 5.5 V
输出数: 7
工作温度: -40°C ~ 85°C
安装类型: *
封装/外壳: *
供应商设备封装: *
包装: *
MAX8939/MAX8939A/MAX8939B
System Power Management
for Mobile Handset
V BATT
SHUTDOWN
RESET_IN = LOW
RESET_IN = HIGH OR
CHG_DET = 1 AND
CHG = LOW
RESET
V BATT < V UVLO
SAFE_OUT
CHARGER ASSERTED
READ
DEFAULT SETTING
RETURN TO
SHUTDOWN
RESET_IN = LOW
RETURN TO RESET
V BATT < V UVLO
PWR_ON_CMP
CHARGER ASSERTED
PWR_ON_CMP = HIGH Z
WHEN IRQ REGISTER
UVLO UPPER
CHG_DET
WAKE-UP
IS WRITTEN
IRQ
UVLO UPPER
THRESHOLD
I2C
STANDBY
I 2 C ACTIVE
ENABLE
BAND-GAP AND
INTERNAL OSC
0.5ms
RETURN TO STANDBY
ALL SUPPLIES
DISABLED BAND-GAP
AND INTERNAL OSC
UVLO UPPER
THRESHOLD
I2C READ/WRITE
LDO1_EN
ENABLE SIGNAL TO
CONTROL LDO1
DISABLED IF CHARGER
NOT CONNECTED
ACTIVE
ONE OR MORE SUPPLY
IS ENABLED
OVER_TEMP
IRQ IS ASSERTED
AND EVENT BIT IS SET
Figure 2. MAX8939/MAX8939A/MAX8939B State Diagram
18
Maxim Integrated
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