Datasheet > ISL78714

ISL78714

更新时间： 2024-11-30 14:58:07

品牌	Logo	应用领域
瑞萨 - RENESAS		电池
页数	文件大小	规格书
4页	363K
描述
汽车级多节锂离子电池管理器

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ISL78714 数据手册

Short-Form Datasheet

ISL78714

Automotive Grade Multi-Cell Li-Ion Battery Manager

The ISL78714 automotive grade Li-ion battery

manager IC supervises up to 14 series connected

cells and is optimized to meet stringent automotive

performance, reliability, and safety requirements. The

device provides all the functions expected of such a

critical component in a battery management system,

such as accurate cell voltage and temperature

monitoring, cell balancing, and extensive system

diagnostics.

Features

▪ Monitors and manages up to 14 cells; all standard

Li-Ion cell chemistries

▪ AEC-Q100 qualified, supports ASIL D systems

▪ Robust two-wire Daisy Chain communications

system using capacitor or transformer coupling at

up to 1Mbps

▪ High coverage communication protocol based on

ISO26262

In a typical configuration, a Master ISL78714

communicates to a host microcontroller through an

SPI port and up to 29 additional ISL78714 devices

connected together by a robust, proprietary, two-wire

Daisy Chain. This communication system is highly

flexible and can be implemented with capacitor

isolation, transformer isolation, or a combination of

both.

▪ Cell voltage measurement accuracy

1.65V to 4.28V; -20ºC to +85ºC:

• Initial Device accuracy: ±2mV

• Post board assembly Device accuracy: ±2.5mV

▪ Cell input range: ±5.0V, negative voltages ideal for

bus bars

▪ Up to six external temperature monitoring inputs

▪ Internal temperature monitoring with warning flag

▪ Two general purpose I/O pins

Three cell balancing modes are included: Manual

Balance mode, Timed Balance mode, and Auto

Balance mode. Auto Balance mode terminates

balancing after a host-specified amount of charge has

been removed from every cell.

▪ Automatic sensing of position in battery stack

▪ Measures and performs read-back on all voltages,

temperatures, and diagnostics for 112 cells in less

than 10ms

The ISL78714 is packaged in a 64 pin TQFP and is

specified for operation from -40ºC to +105ºC.

▪ User-selectable cell measurement averaging

function

Applications

▪ Hybrid Electric Vehicle (HEV), Plug-in Hybrid

Electric Vehicle (PHEV), and Electric Vehicle (EV)

battery packs

▪ 14-bit voltage and temperature measurements

▪ Integrated system diagnostics for all key functions

▪ Watchdog shuts down device if communication is

lost

▪ Electric motorcycle battery packs

▪ Backup battery and energy storage systems

requiring high accuracy management and

monitoring

▪ Pb-free (RoHS compliant)

▪ Long term drift: -0.31 log(khrs)

▪ Fully tolerant to EMC and transients

▪ Portable and semi-portable equipment

R33DO0008EU0106 Rev.1.06

Nov 21, 2022

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与ISL78714相关器件

型号	品牌	获取价格	描述	数据表
ISL78840ASEH	INTERSIL	获取价格	Radiation Hardened, High Performance Industry Standard Single-Ended Current Mode PWM Contr
ISL78840ASEH	RENESAS	获取价格	Radiation Hardened, High Performance Industry Standard Single-Ended Current Mode PWM Contr
ISL78840ASEHVD	INTERSIL	获取价格	Radiation Hardened, High Performance Industry Standard Single-Ended Current Mode PWM Contr
ISL78840ASEHVF	INTERSIL	获取价格	Radiation Hardened, High Performance Industry Standard Single-Ended Current Mode PWM Contr
ISL78840ASEHVX	INTERSIL	获取价格	Radiation Hardened, High Performance Industry Standard Single-Ended Current Mode PWM Contr
ISL78840ASRH	INTERSIL	获取价格	Radiation Hardened, High Performance IndustryStandard Single-Ended Current Mode PWM Contro
ISL78840ASRH	RENESAS	获取价格	Radiation Hardened, High Performance Industry Standard Single-Ended Current Mode PWM Contr
ISL78840ASRH_10	INTERSIL	获取价格	High Performance Industry Standard Single-Ended Current Mode PWM Controller
ISL78840ASRHF/PROTO	INTERSIL	获取价格	Radiation Hardened, High Performance IndustryStandard Single-Ended Current Mode PWM Contro
ISL78840ASRHF/PROTO	RENESAS	获取价格	1A SWITCHING CONTROLLER, 1000kHz SWITCHING FREQ-MAX, CDFP8, ROHS COMPLIANT, HERMETIC SEALE

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