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MM912I637AV1EPR2

Description
battery management precision batt sens
Categorysemiconductor    Other integrated circuit (IC)   
File Size3MB,413 Pages
ManufacturerFREESCALE (NXP)
Environmental Compliance  
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MM912I637AV1EPR2 Overview

battery management precision batt sens

Freescale Semiconductor
Technical Data
Document Number: MM912_637D1
Rev. 4.0, 3/2014
Intelligent Integrated
Precision Battery Sensor
The MM912I637 (96 kB) and MM912J637 (128 kB) are fully
integrated LIN Battery monitoring devices, based on Freescale
SMARTMOS and S12 MCU Technology.
The device supports precise current measurement via an
external shunt resistor, and precise battery voltage
measurement via a series resistor directly at the battery plus
pole. The integrated temperature sensor combined in the close
proximity to the battery, allows battery temperature
measurement.
The integrated LIN 2.1 interface makes the sensor feedback
available on the LIN Bus.
Features
Battery voltage measurement
Battery current measurement in up to 8 ranges
On chip temperature measurement
Normal and two low-power modes
Current threshold detection and current averaging in standby
=> wake-up from low-power mode
Triggered wake-up from LIN and periodic wake-up
Signal low pass filtering (current, voltage)
PGA (programmable low-noise gain amplifier) with automatic
gain control feature
Accurate internal oscillator (an external quartz oscillator may
be used for extended accuracy)
Communication via a LIN 2.1, LIN2.0 bus interface
S12 microcontroller with 128 kByte flash, 6.0 kByte RAM,
4.0 kByte data flash
Background debug module
External temperature sensor option (TSUP, VTEMP)
Optional 2nd external voltage sense input (VOPT)
4 x 5.0 V GPIO including one Wake-up capable high voltage
input (PTB3/L0)
8 x MCU general purpose I/O including SPI functionality
Industry standard EMC compliance
Applications
MM912_637
Battery Monitoring System
EP SUFFIX (WF-TYPE)
98ASA00343D
48-PIN QFN
• 12V Lead-acid Battery Monitoring
© Freescale Semiconductor, Inc., 2010-2014. All rights reserved.

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Description battery management precision batt sens battery management precision batt sens battery management precision batt sens battery management precision batt sens battery management precision batt sens battery management precision batt sens battery management precision batt sens
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