Datasheet > AD8280-EVALZ

AD8280-EVALZ

更新时间： 2024-11-20 12:53:47

品牌	Logo	应用领域
亚德诺 - ADI		电池监控
页数	文件大小	规格书
24页	649K
描述
Lithium Ion Battery Safety Monitor

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中文翻译

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数据手册

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AD8280-EVALZ 数据手册

Lithium Ion Battery Safety Monitor

AD8280

FEATURES

GENERAL DESCRIPTION

Wide supply voltage range: 6.0 V to 30.0 V

Multiple inputs can monitor 3 to 6 cell voltages

and 2 temperatures

Adjustable threshold levels: overvoltage, undervoltage,

overtemperature

Alarm options: separate or shared alarms

Extended temperature range performance

−40°C ≤ T_A≤ +105°C

Can be daisy-chained

Internal reference

Powered from battery stack

LDO available to power isolator

Qualified for automotive applications

Extensive self-test feature aids in meeting ASIL/SIL

requirements

The AD8280 is a hardware-only safety monitor for lithium ion

battery stacks. The part has inputs to monitor six battery cells

and two temperature sensors (either NTC or PTC thermistors).

The part is designed to be daisy-chained with other AD8280

devices to monitor a stack of significantly more than six cells

without the need for numerous isolators. Its output can be con-

figured for an independent or shared alarm state.

The AD8280 functions independently from a primary monitor

and contains its own reference and LDO, both of which are

powered completely from the battery cell stack. The reference, in

conjunction with external resistor dividers, is used to establish

trip points for the overvoltages and undervoltages. Each cell

channel contains programmable deglitching circuitry to prevent

alarms from transient input levels.

The AD8280 also has two digital pins that can be used to select

various combinations of inputs in the case where fewer than six

cells are to be monitored. Most important, it has a self-test feature,

making it suitable for high reliability applications, such as auto-

motive hybrid electric vehicles or higher voltage industrial usage,

such as uninterruptible power supplies. The AD8280 can function

over a temperature range of −40°C to +105°C.

APPLICATIONS

Lithium ion battery backup monitor and threshold detection

Electric and hybrid electric vehicle

Industrial vehicle

Uninterruptible power supply

Wind and solar

FUNCTIONAL BLOCK DIAGRAM

AIINOV AIINUV AIINOT ENBO

TESTO

VTOP LDO

LDOS REF FB

DGT0

DGT1

DGT2

GND2

GND1

VCC

VTOPS

LEVEL

SHIFTER

VBOT2

VBOT2S

VBOT1

LDO

REF

VBOT1S

SELF-

TEST

GENERATOR

DE-

C6O

C6U

I/V

GLITCHING

VIN6

VIN5

CONVERTER

LEVEL

SHIFTER

VCCS

DE-

GLITCHING

TOP

BOT

VIN4

VIN3

VIN2

SEL0

SEL 1

ALARM

LOGIC

VIN1

VIN0

DE-

C1O

GLITCHING

LEVEL

SHIFTER

AVOUTOV

DE-

GLITCHING

C1U

CT1

CT2

AVOUTUV

AVOUTOT

VT1

VT2

DE-

GLITCHING

V/I

CONVERTER

NPTC

DE-

GLITCHING

ALRMSEL

AD8280

AIOUTOV

AIOUTUV AIOUTOT

ENBI TESTI

Figure 1.

Rev. C

Information furnished by Analog Devices is believed to be accurate and reliable. However, no

responsibility is assumed by Analog Devices for its use, nor for any infringements of patents or other

rights of third parties that may result from its use. Specifications subject to change without notice. No

license is granted by implication or otherwise under any patent or patent rights of Analog Devices.

Trademarks and registeredtrademarks arethe property of their respective owners.

One Technology Way, P.O. Box 9106, Norwood, MA 02062-9106, U.S.A.

Tel: 781.329.4700 www.analog.com

12 3 4 5 6 7...24

中文翻译

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与AD8280-EVALZ相关器件

型号	品牌	获取价格	描述	数据表
AD8280WASTZ	ADI	获取价格	Lithium Ion Battery Safety Monitor
AD8280WASTZ-RL	ADI	获取价格	Lithium Ion Battery Safety Monitor
AD8283	ADI	获取价格	Radar Receive Path AFE: 6-Channel LNA/PGA/AAF with ADC
AD8283_15	ADI	获取价格	6-Channel LNA/PGA/AAF with ADC
AD8283_17	ADI	获取价格	Radar Receive Path AFE: 6-Channel LNA/PGA/AAF with ADC
AD8283CP-EBZ	ADI	获取价格	6-Channel LNA/PGA/AAF with ADC
AD8283WBCPZ	ADI	获取价格	Radar Receive Path AFE: 6-Channel LNA/PGA/AAF with ADC
AD8283WBCPZ-RL	ADI	获取价格	Radar Receive Path AFE: 6-Channel LNA/PGA/AAF with ADC
AD8284	ADI	获取价格	6-Channel LNA/PGA/AAF with ADC
AD8284_17	ADI	获取价格	Radar Receive Path AFE: 4-Channel Mux

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