Datasheet > MAX14690CEWX+

MAX14690CEWX+

更新时间： 2024-11-06 00:46:15

品牌	Logo	应用领域
美信 - MAXIM		/
页数	文件大小	规格书
3页	714K
描述
Wearable Charge-Management Solution

阅读下载

中文翻译

获取价格

数据手册

如果您发现信息不准确，欢迎纠错

MAX14690CEWX+ 数据手册

ABRIDGED DATA SHEET

MAX14690

Wearable Charge-Management Solution

General Description

Beneﬁts and Features

● Extend System Use Time Between Battery Charging

The MAX14690 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

MAX14690 features two ultra-low-power buck regulators

with a typical quiescent current of 900nA. In addition,

three ultra-low power low-dropout (LDO) linear regulators,

with a typical quiescent current of 600nA are included.

In total, the MAX14690 can provide up to five regulated

voltages, each with an ultra-low quiescent current,

critical to battery life for the unique power profile in 24/7

operation devices, such as those in the wearable market.

• Dual Ultra-Low-I 200mA Buck Regulators

- Output Programmable from 0.8V to 1.8V and

1.5V to 3.3V

- 0.9μA (typ) Quiescent Current

- Automatic Burst or Forced-PWM Modes

• Three Ultra-Low-I 100mA LDOs

- Output Programmable from 0.8V to 3.6V

- 0.6μA (typ) Quiescent Current

- 2.7V to 5.5V Input with Dedicated Pin

● Easy-to-Implement Li+ Battery Charging

• Smart Power Selector

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

• 28V/-5.5V Tolerant Input

• Thermistor Monitor

● Minimize Solution Footprint Through High Integration

• Provides Five Regulated Voltage Rails

• Switch Mode Option on Each LDO

on an I 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.

● Optimize System Control

• Monitors Pushbutton for Ultra-Low Power Mode

• Power-On Reset Delay and Voltage Sequencing

• On-Chip Voltage Monitor Multiplexer

The two synchronous, high-efficiency step-down buck

regulators feature a fixed-frequency PWM mode for

tighter regulation and a burst mode for increased

efficiency during light-load operation. The output voltage

Applications

● Wearable Electronics

● Fitness Monitors

● Portable Medical Devices

of these regulators can be programmed through I C with

the default preconfigured.

The three configurable LDOs each have a dedicated

input pin. Each LDO regulator output voltage can be

programmed through I C with the default preconfigured.

Block Diagram

MAX14690

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.

LINEAR

Li+ BATTERY CHARGER

WITH POWER SELECTOR

28V INPUT

PROTECTION

POWER

The MAX14690 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.

POWER

BUCK 1

SEQUENCER

BUCK 2

MONITOR

CONTROL

LDO/SWITCH 1

LDO/SWITCH 2

The MAX14690 is available in a 36-bump, 0.4mm pitch,

2.72mm x 2.47mm wafer-level package (WLP).

DATA

SYS

LDO/SWITCH 3

Ordering Information appears at end of data sheet.

19-7480; Rev 10; 4/16

12 3

中文翻译

下载PDF

与MAX14690CEWX+相关器件

型号	品牌	获取价格	描述	数据表
MAX14690CEWX+T	MAXIM	获取价格	Wearable Charge-Management Solution
MAX14690DEWX+	MAXIM	获取价格	Wearable Charge-Management Solution
MAX14690DEWX+T	MAXIM	获取价格	Wearable Charge-Management Solution
MAX14690EEWX+*	MAXIM	获取价格	Wearable Charge-Management Solution
MAX14690EEWX+T*	MAXIM	获取价格	Wearable Charge-Management Solution
MAX14690HEWX+	MAXIM	获取价格	Wearable Charge-Management Solution
MAX14690HEWX+T	MAXIM	获取价格	Wearable Charge-Management Solution
MAX14690IEWX+	MAXIM	获取价格	Wearable Charge-Management Solution
MAX14690IEWX+T	MAXIM	获取价格	Wearable Charge-Management Solution
MAX14690JEWX+	MAXIM	获取价格	Wearable Charge-Management Solution

与MAX14690CEWX+相关文章

英伟达新AI芯片Rubin或提前半年亮相
2024-11-05

13
苹果iPhone 17将全系采用三星/LG显示LTPO OLED面板
2024-11-05

9
三星深化印度制造布局，供应链本地化进程加速
2024-10-29

35
芯擎科技“星辰一号”自动驾驶芯片点亮成功，2025年量产在即
2024-10-29

31

产品中心

服务支持

精选活动

关于我们

帮助中心

MAX14690CEWX+

MAX14690CEWX+ 数据手册

与MAX14690CEWX+相关器件

与MAX14690CEWX+相关文章

您还可以找

产品中心

服务支持

精选活动

关于我们

帮助中心

MAX14690CEWX+

MAX14690CEWX+ 数据手册

与MAX14690CEWX+相关器件

与MAX14690CEWX+相关文章

您还可以找

您在本页遇到什么问题？