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MPM85000 Datasheet Preview

MPM85000 Datasheet

Automotive Power Management Device

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®
MPM85000
Automotive Power Management Device
Features
Low-cost, single-chip solution for Automotive Power
Management
Supports low-power Sleep Mode; wakeup due to:
— LIN bus / ECL activity
— Local event (e.g. ON switch)
— MOST Network optical/electrical activity
Switch-To-Power (STP) event
Power-supply monitoring:
— Configurable voltage trip points
— Configurable wakeup from Sleep Mode voltage
Integrated LIN transceiver
— LIN 2.0 compliant
— Transmission rates up to 20 kHz
— MOST Electrical Control Line (ECL) compliant
— Adjustable slew rate for reduced EMI
— Over-temperature and low-voltage protection
— Short-circuit protection
— Optional TXD timeout (MOST ECL compliant)
Optional I2C Control Port for configuration/status
Programmable Precision Reset Generator
3.3 V MicroPower Regulator for continuous power
requirements (e.g. Rx PHY, EOC/FOR, INIC
persistent memory)
Temperature monitoring with programmable alerts
User available data storage (while in Sleep Mode)
User available One-Time Programmable (OTP)
permanent data storage
Direct support for MOST INIC power status pins
24-pin 4x4 mm2 QFN package with exposed paddle
Temperature range: -40 °C to +110 °C
General Description
The MPM85000 is an automotive system power
management device intended for integration into an
Electrical Control Unit (ECU). The MPM85000 includes
a very low-power Sleep Mode, supporting wakeup
transitions to Active Mode due to multiple signals.
Wakeup event signal detection and qualification
includes both glitch protection and power supply
validation. Qualified inputs can generate interrupts for
an External Host Controller (EHC).
The MPM85000 supports all MOST speed grades
(MOST25, MOST50, and MOST150). In addition to
system power management, other MOST-related
features are supported, including: direct connection to
power status inputs of MOST Intelligent Network
Interface Controllers (INICs), MOST50 electrical
network (ePHY) activity detection, and ECL support.
In Active Mode, the MPM85000 includes a fault-tolerant
keep-alive hardware signal (or software bit) that can be
used by an external device to keep power enabled until
the application is ready to power-down. The MPM85000
also provides continuous monitoring of the application
battery voltage and ECU temperature, and can alert the
EHC when user-programmed thresholds are crossed.
For robust fault tolerance, stuck wakeup events can be
ignored, allowing the MPM85000 to revert to Sleep
Mode. The MPM85000 detects recovery from stuck
conditions and re-enables a signal’s ability to wakeup
the device.
MPM85000
Power Management
Port
MicroPower
Regulator
Activity Detectors
LIN Transceiver
Wakeup
Event
Logic
Control Port
Voltage Monitors
MPM85000 Data Sheet
Temperature Sensor
Storage
Registers
Reset Generator
Copyright © 2012 SMSC.
Dec. 2012
DS85000AP4
Page 1




SMSC

MPM85000 Datasheet Preview

MPM85000 Datasheet

Automotive Power Management Device

No Preview Available !

MPM85000
Ordering Information
Order Number
MPM85000AMT
MPM85000AMR
Package
24-pin QFN (Lead-Free, RoHS Compliant), Tray
24-pin QFN (Lead-Free, RoHS Compliant), Tape and Reel
This table represents valid part numbers at the time of printing and may not represent parts that are cur-
rently available. For the latest list of valid ordering numbers for this product, please contact the nearest
sales office.
Further Information
For more information on SMSC automotive products, including integrated circuits, software, and MOST
development tools and modules, visit our web site: http://www.smsc-ais.com. Direct contact information is
available at: http://www.smsc-ais.com/offices.
SMSC Europe GmbH
Bannwaldallee 48
D-76185 Karlsruhe
Germany
SMSC
80 Arkay Drive
Hauppauge, New York 11788
USA
Technical Support
Contact information for technical support is available at: http://www.smsc-ais.com/contact.
Legend
Copyright © 2012 SMSC. All rights reserved.
Ensure that all information within a document marked as 'Confidential' or 'Confidential Controlled Access' is handled solely in accordance with the agree-
ment pursuant to which it is provided, and is not reproduced or disclosed to others without the prior written consent of SMSC. The confidential ranking of
a document can be found in the footer of every page. This document supersedes and replaces all information previously supplied. The technical informa-
tion in this document loses its validity with the next edition. Although the information is believed to be accurate, no responsibility is assumed for inaccura-
cies. Specifications and other documents mentioned in this document are subject to change without notice. SMSC reserves the right to make changes to
this document and to the products at any time without notice. Neither the provision of this information nor the sale of the described products conveys any
licenses under any patent rights or other intellectual property rights of SMSC or others. There are a number of patents and patents pending on the MOST
technology and other technologies. No rights under these patents are conveyed without any specific agreement between the users and the patent own-
ers. The products may contain design defects or errors known as anomalies, including but not necessarily limited to any which may be identified in this
document, which may cause the product to deviate from published descriptions. Anomalies are described in errata sheets available upon request. SMSC
products are not designed, intended, authorized or warranted for use in any life support or other application where product failure could cause or contrib-
ute to personal injury or severe property damage. Any and all such uses without prior written approval of an officer of SMSC will be fully at your own risk.
TrueAuto is a trademark and MediaLB, SMSC and MOST are registered trademarks of Standard Microsystems Corporation (“SMSC”). Other names
mentioned may be trademarks of their respective holders.
The Microchip name and logo, and the Microchip logo are registered trademarks of Microchip Technology Incorporated in the U.S.A. and other countries.
SMSC DISCLAIMS AND EXCLUDES ANY AND ALL WARRANTIES, INCLUDING WITHOUT LIMITATION ANY AND ALL IMPLIED WARRANTIES
OF MERCHANTABILITY, FITNESS FOR A PARTICULAR PURPOSE, TITLE, AND AGAINST INFRINGEMENT AND THE LIKE, AND ANY AND ALL
WARRANTIES ARISING FROM ANY COURSE OF DEALING OR USAGE OF TRADE. IN NO EVENT SHALL SMSC BE LIABLE FOR ANY DIRECT,
INCIDENTAL, INDIRECT, SPECIAL, PUNITIVE, OR CONSEQUENTIAL DAMAGES; OR FOR LOST DATA, PROFITS, SAVINGS OR REVENUES OF
ANY KIND; REGARDLESS OF THE FORM OF ACTION, WHETHER BASED ON CONTRACT; TORT; NEGLIGENCE OF SMSC OR OTHERS;
STRICT LIABILITY; BREACH OF WARRANTY; OR OTHERWISE; WHETHER OR NOT ANY REMEDY OF BUYER IS HELD TO HAVE FAILED OF
ITS ESSENTIAL PURPOSE, AND WHETHER OR NOT SMSC HAS BEEN ADVISED OF THE POSSIBILITY OF SUCH DAMAGES.
MPM85000 Data Sheet
Page 2
Copyright © 2012 SMSC.
DS85000AP4


Part Number MPM85000
Description Automotive Power Management Device
Maker SMSC
Total Page 30 Pages
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