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MAX14745MEWX+

产品描述Power Supply Support Circuit,
产品类别电源/电源管理    电源电路   
文件大小1MB,共67页
制造商Maxim(美信半导体)
官网地址https://www.maximintegrated.com/en.html
标准
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MAX14745MEWX+概述

Power Supply Support Circuit,

MAX14745MEWX+规格参数

参数名称属性值
是否Rohs认证符合
厂商名称Maxim(美信半导体)
包装说明VFBGA, BGA36,6X6,16
Reach Compliance Codecompliant
Samacsys DescriptionMAX14745MEWX+
可调阈值YES
模拟集成电路 - 其他类型POWER SUPPLY SUPPORT CIRCUIT
JESD-30 代码R-PBGA-B36
长度2.688 mm
信道数量5
功能数量1
端子数量36
最高工作温度85 °C
最低工作温度-40 °C
封装主体材料PLASTIC/EPOXY
封装代码VFBGA
封装等效代码BGA36,6X6,16
封装形状RECTANGULAR
封装形式GRID ARRAY, VERY THIN PROFILE, FINE PITCH
峰值回流温度(摄氏度)NOT SPECIFIED
座面最大高度0.69 mm
最大供电电压 (Vsup)28 V
标称供电电压 (Vsup)5 V
表面贴装YES
技术BICMOS
温度等级INDUSTRIAL
端子形式BALL
端子节距0.4 mm
端子位置BOTTOM
处于峰值回流温度下的最长时间NOT SPECIFIED
宽度2.437 mm

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EVALUATION KIT AVAILABLE
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for production status of specific part numbers.
MAX14745
PMIC with Ultra Low I
Q
Voltage Regulators and
Battery Charger for Small Lithium Ion Systems
General Description
The MAX14745 is a battery-charge-management solution
ideal for low-power wearable applications. The device
includes a linear battery charger with a smart power
selector and several power-optimized peripherals. The
MAX14745 features two ultra-low quiescent current buck
regulators and three ultra-low quiescent current low-dropout
(LDO) linear regulators, providing up to five regulated
voltages, each with an ultra-low quiescent current, allows
designers to minimize power consumption and extend
battery life in 24/7 operation devices, such as those in the
wearable market.
The battery charger features a smart power selector that
allows operation on a dead battery when connected to a
power source. To avoid overloading a power adapter, the
input current to the smart power selector is limited based
on an I
2
C register setting. If the charger power source
is unable to supply the entire system load, the smart
power control circuit supplements the system load with
current from the battery. The charger also supports
temperature dependent charge currents.
The two synchronous, high-efficiency step-down buck
regulators feature a variable frequency mode for increased
efficiency during light-load operation. The output voltage
of these regulators can be programmed through I
2
C
with the default preconfigured. The buck regulators can
support dynamic voltage scaling to further improve
system power consumption.
The three configurable LDOs each have a dedicated
input pin. Each LDO regulator output voltage can be
programmed through I
2
C with the default preconfigured.
The linear regulators can also be configured to operate
as power switches that may be used to disconnect the
quiescent load of the system peripherals.
The MAX14745 features a programmable power controller
that allows the device to be configured for applications
that require the device be in a true-off, or always-on,
state. The controller also provides a delayed reset signal
and voltage sequencing.
The MAX14745 is available in a 36-bump, 0.4mm pitch,
2.72mm x 2.47mm wafer-level package (WLP).
Benefits and Features
Extend System Use Time Between Battery Charging
• Dual Ultra-Low-I
Q
200mA Buck Regulators
- Output Programmable from 0.8V to 2.375V and
0.8V to 3.95V
-
0.9μA (typ) Quiescent Current (Buck 1)
- Optional Fixed Peak-Current Mode to Optimize
Ripple Frequency in Noise-Sensitive Applications
• Three Ultra-Low-I
Q
100mA LDOs
• LDO1
- Output Programmable from 0.8V to 3.6V
-
0.6μA (typ) Quiescent Current
- 2.7V to 5.5V Input with Dedicated Pin
• LDO2/3
- Output Programmable from 0.9V to 4V
-
1μA (typ) Quiescent Current
- 1.71V to 5.5V Input with Dedicated Pin
Easy-to-Implement Li+ Battery Charging
• Smart Power Selector
• 28V/-5.5V Tolerant Input
• Thermistor Monitor
Minimize Solution Footprint Through High Integration
• Provides Five Regulated Voltage Rails
• Switch Mode Option on Each LDO
Optimize System Control
• Monitors Pushbutton for Ultra-Low Power Mode
• Power-On Reset Delay and Voltage Sequencing
• On-Chip Voltage Monitor Multiplexer
Applications
Wearable Electronics
Fitness Monitors
Rechargeable IoT devices
Ordering Information
appears at end of data sheet.
19-8560; Rev 14; 10/18

MAX14745MEWX+相似产品对比

MAX14745MEWX+ MAX14745OEWX+ MAX14745OEWX+T MAX14745MEWX+T
描述 Power Supply Support Circuit, Power Supply Support Circuit, Power Supply Support Circuit, Power Supply Support Circuit,
是否Rohs认证 符合 符合 符合 符合
厂商名称 Maxim(美信半导体) Maxim(美信半导体) Maxim(美信半导体) Maxim(美信半导体)
包装说明 VFBGA, BGA36,6X6,16 VFBGA, BGA36,6X6,16 VFBGA, BGA36,6X6,16 VFBGA, BGA36,6X6,16
Reach Compliance Code compliant compliant compliant compliant
Samacsys Description MAX14745MEWX+ MAX14745OEWX+ Battery Management Wearable Charge Management Solution Battery Management Wearable Charge Management Solution
可调阈值 YES YES YES YES
模拟集成电路 - 其他类型 POWER SUPPLY SUPPORT CIRCUIT POWER SUPPLY SUPPORT CIRCUIT POWER SUPPLY SUPPORT CIRCUIT POWER SUPPLY SUPPORT CIRCUIT
JESD-30 代码 R-PBGA-B36 R-PBGA-B36 R-PBGA-B36 R-PBGA-B36
长度 2.688 mm 2.688 mm 2.688 mm 2.688 mm
信道数量 5 7 5 5
功能数量 1 1 1 1
端子数量 36 36 36 36
最高工作温度 85 °C 85 °C 85 °C 85 °C
最低工作温度 -40 °C -40 °C -40 °C -40 °C
封装主体材料 PLASTIC/EPOXY PLASTIC/EPOXY PLASTIC/EPOXY PLASTIC/EPOXY
封装代码 VFBGA VFBGA VFBGA VFBGA
封装等效代码 BGA36,6X6,16 BGA36,6X6,16 BGA36,6X6,16 BGA36,6X6,16
封装形状 RECTANGULAR RECTANGULAR RECTANGULAR RECTANGULAR
封装形式 GRID ARRAY, VERY THIN PROFILE, FINE PITCH GRID ARRAY, VERY THIN PROFILE, FINE PITCH GRID ARRAY, VERY THIN PROFILE, FINE PITCH GRID ARRAY, VERY THIN PROFILE, FINE PITCH
峰值回流温度(摄氏度) NOT SPECIFIED NOT SPECIFIED NOT SPECIFIED NOT SPECIFIED
座面最大高度 0.69 mm 0.69 mm 0.69 mm 0.69 mm
最大供电电压 (Vsup) 28 V 28 V 28 V 28 V
标称供电电压 (Vsup) 5 V 5 V 5 V 5 V
表面贴装 YES YES YES YES
技术 BICMOS BICMOS BICMOS BICMOS
温度等级 INDUSTRIAL INDUSTRIAL INDUSTRIAL INDUSTRIAL
端子形式 BALL BALL BALL BALL
端子节距 0.4 mm 0.4 mm 0.4 mm 0.4 mm
端子位置 BOTTOM BOTTOM BOTTOM BOTTOM
处于峰值回流温度下的最长时间 NOT SPECIFIED NOT SPECIFIED NOT SPECIFIED NOT SPECIFIED
宽度 2.437 mm 2.437 mm 2.437 mm 2.437 mm
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