Analog, Mixed-Signal and Power Management
MM9Z1_638 and MM9Z1_638C
Xtrinsic Battery Sensor with Multiple Voltage and
Temperature Sense Inputs, MSCAN and LIN
Target Applications
• Automotive
Battery monitoring
Hybrid electric vehicle (HEV)
inverter controller
• Industrial
Energy storage systems (ESS)
Hybrid electric vehicle (HEV)
Cordless tools and appliances
Overview
The MM9Z1_638 and MM9Z1_638C
are
fully integrated battery monitoring devices for automotive
and industrial mission critical applications. The device integrates an S12Z microcontroller and a
SMARTMOS analog control IC into a single-package solution. The analog die combines
system basis and application-specific functions, including a Local Interconnect Network (LIN)
transceiver and a two-channel 16-bit sigma-delta (ΣΔ) analog-to-digital converter (ADC) for
simultaneous measurement of battery voltage and current.
An integrated temperature sensor combined with battery mounting allows accurate measurement
of battery temperature. Control of the analog die is through the high-performance internal
die-to-die interface (D2D), which seamlessly integrates the analog IC registers into the MCU
register map, providing faster access than SPI-based systems. The MM9Z1_638/634C also
includes an internal oscillator, 96 KB or 128 KB of flash memory and 8 KB of RAM, as well as an
MSCAN module. Multiple external temperature sensors are also supported.
MM9Z1_638 Simplified Application Drawing
MM9Z1_638
Battery
Pack
VSUP
VSENSE3
VSENSE2
T°
T°
VDDA
PTB2
PTB5
PTB1
VSENSE1
VSENSE0
LIN
VDDX
PA0
TxD
RxD
PTB4
CAN
Interface
RX
CANL CANH
EN
TX
VDD
Vehicle
LIN bus
Shunt
ISENSEH
ISENSEL
GNDs
Vehicle
CAN bus
Multiple Cell Monitoring, CAN & LIN Communication
Customer Benefits
Integration of MCU and analog features
into a system-in-package solution results in
an optimized, economical and autonomous
multifunction solution, provides enhanced
reliability and requires few external components
when compared to discrete solutions
• Fully integrated and optimized signal
chains, using three individual sigma-delta
ADC to measure current, voltage and
temperature
• Four dedicated voltage sense inputs with
internal divider covering a voltage range
from 1.25–52 V
• Reverse battery-protected voltage
sense pins
• Full LIN solution with integrated physical
interface and MSCAN module
• MM9Z1_638: Fully AEC-Q100 automotive
qualified, and designed to meet highest
automotive robustness standards for ESD,
EMC and Zero Defect Quality levels
• MM9Z1_638C: Industrial-qualified option
Product Features
Battery voltage measurement
• Dedicated 16-bit second-order
ΣΔ
ADC, full measurement range 3.5–28 V, with a
maximum gain error accuracy of 0.15 percent for 5–18 V range
• Simultaneous sampling with current channel
• Programmable signal filtering shared with current measurement
• Four battery voltage measurement with internal divider
• Five voltage sensor inputs routable to both voltage and temperature channel
Differential battery current measurement
• Dedicated 16-bit second-order
ΣΔ
ADC with a programmable gain amplifier with eight
programmable gain factors
• Gain control block for automatic gain adjustment
• Measurement range up to +/-2000 A with an accuracy of 5 mA and a resolution of 1 mA
Temperature measurement
•
•
•
•
•
Internal, on-chip temperature sensor
Dedicated 16-bit ADC with anti-aliasing filter
Accuracy: +/-2 °C (-20 to 60 °C) and +/-3 °C (-40 to 125 °C)
Five single-ended sensor inputs routable to both voltage and temperature channels
Internal supply for external sensors
Normal and low-power mode
• Current integration via 32-bit accumulator during low-power mode
• Programmable current threshold detection during low-power mode
• Programmable wake-up timer, triggered wake-up from LIN
Advanced system-level management
Internal oscillator with one percent accuracy
Communication via LIN 2.1, LIN 2.0 interface with fast mode for flash programming over LIN
MSCAN protocol controller with TxD and RxD pins, and bus wake-up detection
S12Z micro controller with 128 KB flash, 8 KB RAM, 4 KB EEPROM—all with ECC
Enhanced VDDX capability to supply MCU and external components
Fast, die-to-die bus interface with transparent integration of analog IC registers into the
MCU register map, automatic synchronization and error detection
• Automotive EMC and ESD performance
•
•
•
•
•
•
(PB-FREE) 48-PIN QFN-EP
98ASA00343D
Freescale: A Leader in
Analog Solutions
Expanding on more than 30 years of
innovation, Freescale is a leading provider
of high-performance products that use
SMARTMOS technology combining digital,
power and standard analog functions.
Freescale supplies analog and power
management ICs that are advancing the
automotive, consumer, industrial and
networking markets. Analog solutions interface
with real-world signals to control and drive for
complete embedded systems.
Documentation
Freescale Document
Number
MM9Z1_638D1
SG1002
SG187
SG200
Title
Xtrinsic Battery Sensor with Multiple Voltage and Temperature
Sense Inputs, MSCAN and LIN
Analog Product Selector Guide
Automotive Product Selector Guide
Analog and Power Management Industrial Selector Guide
Description
Data sheet
Selector guide
Selector guide
Selector guide
Development Tools
Part Number
KIT9Z1J638EVM
Description
Evaluation board to demonstrate the key features of the MM9Z1_638. In development.
Contact Sales for pricing.
For more information, visit
freescale.com/Xtrinsic
Freescale and the Freescale logo are trademarks of Freescale Semiconductor, Inc., Reg. U.S. Pat. & Tm. Off. SMARTMOS
and Xtrinsic are trademarks of Freescale Semiconductor, Inc. All other product or service names are the property of their
respective owners. © 2012, 2013 Freescale Semiconductor, Inc.
Document Number: MM9Z1_638FS REV 2.0
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