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AAT3670ISK-4.2-T1

更新时间： 2024-02-26 18:26:41

品牌	Logo	应用领域
ANALOGICTECH		电源电路电池电源管理电路
页数	文件大小	规格书
32页	661K
描述
1.6A Dynamic Battery Charger and Power Manager

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技术参数
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AAT3670ISK-4.2-T1 技术参数

生命周期：	Obsolete	包装说明：	HVQCCN,
Reach Compliance Code：	unknown	ECCN代码：	EAR99
HTS代码：	8542.39.00.01	风险等级：	7.87
可调阈值：	YES	模拟集成电路 - 其他类型：	POWER SUPPLY MANAGEMENT CIRCUIT
JESD-30 代码：	S-XQCC-N24	长度：	4 mm
信道数量：	1	功能数量：	1
端子数量：	24	最高工作温度：	85 °C
最低工作温度：	-40 °C	封装主体材料：	UNSPECIFIED
封装代码：	HVQCCN	封装形状：	SQUARE
封装形式：	CHIP CARRIER, HEAT SINK/SLUG, VERY THIN PROFILE	座面最大高度：	1 mm
最大供电电压 (Vsup)：	5.5 V	最小供电电压 (Vsup)：	4.35 V
标称供电电压 (Vsup)：	5 V	表面贴装：	YES
温度等级：	INDUSTRIAL	端子形式：	NO LEAD
端子节距：	0.5 mm	端子位置：	QUAD
宽度：	4 mm	Base Number Matches：	1

AAT3670ISK-4.2-T1 数据手册

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AAT3670

1.6A Dynamic Battery Charger

and Power Manager

™

BatteryManager

General Description

Features

The AAT3670 BatteryManager is a highly integrated

single-cell lithium-ion/polymer (Li-ion) battery charger

and system power management IC that enables simul-

taneous battery charging and full system usage without

compromising the battery's charge cycle life. It operates

with low-voltage AC adapter (ADP) and USB inputs and

requires a minimum number of external components.

•

ADP, USB, or Battery Powers System Load

Through Internal Current-Limited Switches

Simultaneous Battery Charging and System

Usage

Voltage Sensed Charge Reduction Loop

to Minimize Charge Time, Even While the

System Operates

•

Digitized Thermal Loop

Battery Power Enable (ENBAT)

Battery Charge Timer (CT)

Battery Temperature Monitoring (TS)

Battery Charge Status Report (/STATx)

Automatic Recharge Sequencing

Battery Under-Voltage, Over-Voltage, and

Over-Current Protection

The AAT3670 selects ADP or USB to power the system

load and charge the battery when ADP/USB power is

available. The AAT3670 precisely regulates battery

charge voltage and current for 4.2V Li-ion cells. Charge

current can be programmed up to 1.6A for ADP charging

and 0.9A or 0.1A for USB charging by resistors on the

ADPSET/ USBSET pins. The charge termination current

threshold is set by an external resistor on the TERM pin.

•

System Load Current Limiting

Thermal Protection

24-pin 4x4mm QFN Package

The AAT3670 has a voltage-sensed charge current

reduction loop that enables system operation without a

power shortage. When the input voltage falls below the

programmable charge reduction threshold, the device

automatically reduces the charge current until the input

voltage returns to the threshold voltage.

Applications

Battery temperature and charge state are fully monitored

for fault conditions. In the event of a battery over-volt-

age/short-circuit/over-temperature condition, the charg-

er will automatically shut down, protecting the charging

device, control system, and battery. Two status monitor

output pins (STAT1 and STAT2) are provided to indicate

battery charge status by directly driving external LEDs.

•

Cellular Telephones

Digital Still Cameras

Personal Data Assistants (PDAs)

Hand Held PCs

MP3 Players and PMP

Other Li-ion Battery Powered Devices

The AAT3670 is available in a Pb-free, thermally-

enhanced, space-saving 24-pin 4x4mm QFN package.

Typical Application

STAT1

OUT

System Load

BATS

BAT

STAT2

ADP

Adapter Input

C_BAT

10µF

C_ADP

10µF

AAT3670

Single Cell

Li-Ion/Poly

Battery

USB

USB Input

VTS

C_USB

10µF

R_T

Enable

Enable Battery to OUT

USB Hi/Lo Select

ENBAT

CHRADP

CHRUSB

USBSEL

ADPSET

USBSET

ADPLIM

USBLIM

TERM

C_T

GND

R_ADPSET

R_USBSET

R_ADPLIM

R_USBLIM

R_TERM

3670.2007.02.1.1

12 3 4 5 6 7...32

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AAT3672IWO-4.2-2-T1	SKYWORKS	Power Supply Management Circuit, Adjustable, 1 Channel, PDSO14, TDFN-14	获取价格
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