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MAX14676A PDF预览

MAX14676A

更新时间: 2024-09-29 02:52:11
品牌 Logo 应用领域
美信 - MAXIM /
页数 文件大小 规格书
3页 304K
描述
Wearable Charge Management Solution

MAX14676A 数据手册

 浏览型号MAX14676A的Datasheet PDF文件第2页浏览型号MAX14676A的Datasheet PDF文件第3页 
ABRIDGED DATA SHEET  
EVALUATION KIT AVAILABLE  
MAX14676/MAX14676A  
Wearable Charge Management Solution  
General Description  
Benefits and Features  
The MAX14676/MAX14676A are battery-charge-  
management solutions ideal for low-power wearable  
applications. These devices include a linear battery-  
charger with a Smart Power Selector™, ModelGauge™  
fuel gauge, and several power-optimized peripherals.  
They feature an ultra-low-power buck regulator with a  
quiescent current of 900nA (typical) and 74% efficiency  
with 10µA output.  
Extend System Use Time Between Battery Charging  
• 1.8V Low-I 200mA Buck Regulator  
Q
- 0.9μA (typ) Quiescent Current  
• - Automatic Burst or Forced-PWM Modes  
• ModelGauge with Accurate State-of-Charge  
Easy-to-Implement Li+ Battery Charging  
• Smart Power Selector  
• 28V Tolerant Input  
The battery charger features Smart Power Selector  
operation, allowing operation with dead battery. It limits  
input current based on a register setting. If the charger  
power source is unable to supply the entire system load,  
the smart power control circuit will supplement the system  
load with current from the battery.  
• Thermistor Monitor  
Minimize Power-Management Footprint though High  
Integration  
• 3.2V Low-I 100mA LDO  
Q
2.0V Always-On 50μA LDO  
The MAX14676/MAX14676A embed a Maxim proprietary  
ModelGauge fuel gauge to provide an accurate estimate  
of the available capacity for rechargeable lithium batteries.  
• +5V Safe Output LDO  
• 6.6V Low-I 120μA Charge Pump  
Q
Support a Wide Variety of Display Options  
• 5V to 17V Output Boost Converter  
The MAX14676/MAX14676A include a synchronous high-  
efficiency step-down converter. The device features a fixed-  
frequency PWM mode for tighter regulation, and a burst  
mode for increased efficiency during light-load operation.  
• 3-Channel Adjustable High-Voltage Current Sinks  
Optimize System Control  
• Pushbutton to Enable Ultra-Low-Power Mode and  
Power-On Voltage Sequencing  
The MAX14676/MAX14676A have a boost regulator and  
three programmable current sinks that can be used to  
drive a variety of LED configurations. The boost converter  
is controlled independently from the current sinks, and  
they can be also used separately.  
2
• I C Control  
Applications  
Wearable Electronics  
GPS Watches  
Fitness Monitors  
Portable Medical Devices  
The MAX14676/MAX14676A feature a power switch con-  
troller that allows the device to be turned on and off by a  
pushbutton. This controller also provides a delayed reset  
signal and voltage sequencing.  
These devices are available in a 42-bump, 0.5mm pitch,  
3.497mm x 3.118mm wafer-level package (WLP).  
Ordering Information/Selector Guide appears at end of  
data sheet.  
Smart Power Selector and ModelGauge are trademarks of  
Maxim Integrated Products, Inc.  
19-6856; Rev 3; 5/17  

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