Datasheet > MAX14676

MAX14676

更新时间： 2024-11-06 02:52:07

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

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MAX14676 数据手册

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

• - 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

• 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

● 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.

• 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

12 3

中文翻译

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与MAX14676相关器件

型号	品牌	获取价格	描述	数据表
MAX14676A	MAXIM	获取价格	Wearable Charge Management Solution
MAX14676A	ADI	获取价格	Wearable Charge Management Solution
MAX14676AEWOT	MAXIM	获取价格	Wearable Charge Management Solution
MAX14676EWOT	MAXIM	获取价格	Wearable Charge Management Solution
MAX14680	ADI	获取价格	超低导通电阻、结构紧凑的双向电池开关
MAX14680EWC+	MAXIM	获取价格	Analog Circuit, 1 Func, BICMOS, PBGA12, 1.30 X 1.70 MM, 0.40 MM PITCH, ROHS COMPLIANT, WLP
MAX14680EWC+T	MAXIM	获取价格	Analog Circuit, 1 Func, BICMOS, PBGA12, 1.3 X 1.7 MM, 0.4 MM PITCH, ROHS COMPLIANT, WLP-12
MAX14689	MAXIM	获取价格	Ultra-Small, Low-RON, Beyond-the-Railsâ¢ DPD
MAX14689	ADI	获取价格	超小尺寸、低Low-RON、Beyond-the-Rails DPDT模拟开关
MAX14689AETB+T	MAXIM	获取价格	Ultra-Small, Low-RON, Beyond-the-Railsâ¢ DPD

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