参数资料
型号: MAX8671XETL+T
厂商: Maxim Integrated Products
文件页数: 36/44页
文件大小: 0K
描述: IC PMIC W/CHARGER 40-TQFN-EP
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: 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: 40-WFQFN 裸露焊盘
供应商设备封装: 40-TQFN-EP(5x5)
包装: 带卷 (TR)
PMIC with Integrated Charger and
Smart Power Selector for Handheld Devices
SYS
SYSOK
2.5V FALLING
PV4
100mV HYST
PV4OK
DIE TEMP
DT165
MAX8671X
1.6V RISING
PV5
USB
100mV HYST
1.6V RISING
100mV HYST
PV5OK
+165 ° C
SOFT-START
REG3
USBOVLO
REGON
EN
OK
REG3OK
6.9V RISING
400mV HYST
USBPOK
SOFT-START
USBUVLO
REG1
DC
4.0V RISING
500mV HYST
REGON
REG3OK
EN
OK
REG1OK
DCOVLO
SOFT-START
6.9V RISING
400mV HYST
DCPOK
REG2
DCUVLO
EN
OK
REG2OK
4.0V RISING
500mV HYST
SOFT-START
EN
2MHz
OSC
REGON
REG3OK
REG4
BIAS
&
REF
DT165
SYSOK
REG1OK
REG2OK
PV4OK
EN
OK
REG4OK
SOFT-START
64 CYCLE
REGON
DELAY
(32ms)
REGON
REG3OK
REG5
REG1OK
EN
OK
REG5OK
REG2OK
REG4OK
PV5OK
Figure 11. Enable/Disable Logic
Enable/Disable (EN) and Sequencing
Figures 11, 12, and 13 show how the five MAX8671X
regulators are enabled and disabled. With a valid SYS
voltage and die temperature, asserting EN high
enables REG1 –REG4. Pulling EN low disables
REG1–REG5. REG5 is intended to power the system
USB transceiver circuitry, which is only active when
USB power is available. Therefore, a valid source must
be on either the USB or DC input for REG5 to enable.
36
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