MAX17841B datasheet(1/33 Pages) MAXIM

No. de pieza	MAX17841B

Descripción Electrónicos	Automotive SPI Communication Interface (ASCI)

PDF	33 Pages

Scroll/Zoom	100%

Fabricante Electrónico	MAXIM [Maxim Integrated Products]

Página de inicio	https://www.maximintegrated.com/en.html

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1 / 33 page

19-6790; Rev 2; 1/15

Ordering Information appears at end of data sheet.

General Description

The MAX17841B ASCI combines an SPI port with

a universal asynchronous receiver transmitter (UART)

specially designed to interface with Maxim battery

management devices.

The UART can be configured to automatically

performManchesterencoding/decoding,messageframing,

parity, wake-up, and keep-alive signaling as required for

Maxim’s battery management UART protocol.

The UART has programmable baud rates of 0.5Mbps,

1Mbps, or 2Mbps and supports either single-ended or

differential signaling. For host efficiency, the UART

contains a 28-byte transmit buffer and a 62-byte receive

buffer with host-configurable interrupt events.

Applications

● BatteryManagementSystems(BMS)

● ElectricandHybridVehicles(EV/HEV)

● EnergyStorageSystems(ESS)

Benefits and Features

● SupportsMaxim’sBatteryManagementUART

Protocol

● SPIInterfaceUpto4MHz

● UARTBaudRateProgrammableUpto2Mbps

● 3.3Vor5VOperation

● Ultra-LowQuiescentCurrent

● TransmitandReceiveBufferswithProgrammable

InterruptsAllowforQueuingofUARTMessages

● ManchesterEncoderandDecoderReducesHost

Controller Burden

● OperatingTemperatureRangefrom-40°Cto+105°C

(AEC-Q100Type2)

● SupportsASILRequirements

Simplified Operating Circuit

VAA

VCC

1µF

VAA

1µF

15pF

ISOLATORS

MAX17841B

TXPL

MAX178xx

BATTERY

MANAGEMENT

DEVICE

TXNL

VDDL

GNDL

RXP

0.1µF

DCIN

AGND

DOUT

DIN

SCLK

VAA

5V DC

SUPPLY

100kΩ

MISO

MOSI

SCLK

SS

VCC

100kΩ

1.5kΩ

100Ω

0.01µF

CS

INT

SHDN

IRQ

GPIO

SYSTEM

µP

15pF

RXN

1.5kΩ

RXPL

RXNL

TXP

47Ω

TXN

47Ω

SLAVE(S)

MASTER

MAX17841B

Automotive SPI Communication Interface (ASCI)

EVALUATION KIT AVAILABLE

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MAX17841B Datasheet(PDF) 1 Page - Maxim Integrated Products

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