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| L5961 MOST power management device (PMD) Data Brief Features 5V or 3.3V / 650mA DC-DC Converter with external sync 5V or 3.3V/ 40mA standby voltage regulator 5V or 3.3V / 60mA switchable voltage regulator Very low quiescent current (zero power mode and ultra zero power mode feature) Power management fully compatible to MOST specification Provides power supply for physical layer and control unit Switch to power pulse generator Reacts on four different wake-up events - Switch to power pulse (STPP) - Light ON (for status) - Activity on Diagnostic_I/O - ON/OFF switch I2C interface Programmable system configuration Reset generator Intrinsic diagnostic transceiver (standard LIN2.0) 3 battery detectors for battery voltage monitoring Watchdog circuit PowerSS0-36 and PowerSO-36 packages options PowerSSO-36 PowerSO-36 for the physical layer, the Network Controller and the External Host Controller of a MOST Node. The L5961 also allows the implementation of a generic MOST node design that can be reproduced "as is" in any other project, thus avoiding the activities of redesign and reverification of MOST PMD compliance The L5961 implements complete monitoring of the supply voltage (over-voltage, under-voltage, critical voltage), moreover it supports multiple power modes like Zeropower-mode (where one complete MOST node sinks around 25A current) and Ultra-zero power mode (5A). All the diagnostic protocols from major carmakers are supported and the device reacts to many different wake-up events. The L5961 is completely configurable through its I2C bus and fully compatible with MOST specifications. L5961 has been specified in cooperation with SMSC and represents a "chipset" solution when used with SMSC's MOST network interface controllers (INIC or NIC). Table 1. Device summary Package PowerSSO-36 PowerSO-36 Packing Tube Tube Description The L5961 MOST PMD integrates all the discrete circuitry usually necessary to implement power supplies and power management for a MOST node. It includes intrinsic MOST specific power management together with sophisticated diagnostic and fail-safe functions. The MOST PMD is designed to provide direct power supply Order code L5961 L5961PD January 2008 Rev 1 1/7 www.st.com 7 For further information contact your local STMicroelectronics sales office. 1 2/7 UBatt_F Load Dump Protection Filtering VS1 VS2 STPPC Figure 1. UBatt RSTPPC L5961 CTRL V3_SW PGND COMP SYNC V3 RCOMP CCOMP C L GND V2 CV2 CSTPPC STPP Comparator External Power Supply (Option) FOT V1 CV1 V1_ADJ RSTN UZPen VCC STATUS DIAG_I/O ON_SW DIAG_TXD DIAG_RXD V3EN Watchdog WDI PS0 PS1 5V/ 60mA Reg2 DC-DC Converter 3.3/5V 650mA FOR 3.3/5V 40mA Reg1 RESET UBatt GND Wake-up Diagnosis Diagnostic Transceiver V3SEL Control Logic Block and application diagram example (with INIC) Block and application example (with INIC) Comparators I2C - Interface ON-switch detector AD SDA SCL ON-switch Wake-up Diagnosis GND INTN GNDSUB PWROFF TAB Internal 5V-power supply EHC VCC RSTN INIC TxD RxD VCC Block and application diagram example (with INIC) RSTPPC = 10kOhm CSTPPC = 0.1F CV1 = CV2 =1F (ESR<0.1Ohm) C = 470F (5mOhm AC00261 L5961 L5961 Functionality details 2 Functionality details Provides three basic states: - Zero power mode All external HW is switched off. PM-chip is switched Off except "REG1 voltage regulator", "Switch-to-power-pulse comparator" and "Control logic". Ultra zero power mode All external HW is switched off. PM-chip is switched Off except "ON/OFF Control logic". PMD can be woken up to reach "Zero current mode" by activities on DIAG_I/O line Normal PMD and external HW is powered. One of the four possible wake-up conditions occurs and the wake-up event is confirmed either by means of PWROFF pin or I2C bus. To confirm the on-event: - PWROFF pin must be driven low OR - the right I2C bus command is provided. Switch to power pulse (STPP) Light ON (for status) Activity on Diag_I/O ON/OFF switch - - Reacts on four different wake-up events - - - - I2C interface (allowing system programmability) Generation of switch to power pulse (STPP) Online battery monitoring, reacts on battery changes/ events: - - - Over voltage Critical voltage Under voltage Hardware watchdog triggered with discrete input, available to monitor the activity of the controller Fail-safe behavior: - - - Intrinsic filtering time of wake-up events Protection against software caused failures Over-temperature warning / thermal protection Diagnostic transceiver compatible to standard LIN2.0 3/7 Package information L5961 3 Package information In order to meet environmental requirements, ST (also) offers these devices in ECOPACK(R) packages. ECOPACK(R) packages are lead-free. The category of second Level Interconnect is marked on the package and on the inner box label, in compliance with JEDEC Standard JESD97. The maximum ratings related to soldering conditions are also marked on the inner box label. ECOPACK is an ST trademark. ECOPACK specifications are available at: www.st.com. Figure 2. A A2 a1 b c D (1) E (1) e e3 F G G1 H h k L M N O Q S T U X Y PowerSSO-36 mechanical data and package dimensions DIM. MIN. 2.15 2.15 0 0.18 0.23 10.10 7.4 0.5 8.5 2.3 0.10 0.06 10.50 0.40 5 0.55 4.3 10 1.2 0.8 2.9 3.65 1.0 4.1 6.5 4.7 7.3 0.161 0.256 0.047 0.031 0.114 0.144 0.039 0.185 0.287 0.90 0.022 0.169 10 mm TYP. MAX. 2.47 2.40 0.075 0.36 0.32 10.50 7.6 MIN. 0.084 0.084 0 0.007 0.009 0.398 0.291 0.019 0.335 0.090 0.004 0.002 0.413 0.016 5 0.035 inch TYP. MAX. 0.097 0.094 0.003 0.014 0.012 0.413 0.299 OUTLINE AND MECHANICAL DATA 10.10 0.398 (1) "D" and "E" do not include mold flash or protrusions Mold flash or protrusions shall not exceed 0.15 mm per side(0.006") PowerSSO-36 (exposed pad) A2 A hx45 G LEAD COPLANARITY A D e stand-off a1 T Y Gauge plane 0.25 L O H E X F U B 0.1 M A B b e3 S BOTTOM VIEW 7587131 A 4/7 k c Q L5961 Figure 3. Package information PowerSO-36 mechanical data and package dimensions DIM. A a1 a2 a3 b c D D1 E E1 E2 E3 e e3 G H h L N s 0.8 0 15.50 5.80 0.65 11.05 0.10 15.90 0.6102 1.10 1.10 0.0315 10 (max) 8 (max) 0 0.22 0.23 15.80 9.40 13.90 10.90 0.10 mm MIN. TYP. MAX. 3.60 0.30 3.30 0.10 0.38 0.32 9.80 14.5 2.90 6.20 0.2283 0.0256 0.4350 0.0039 0.6260 0.0433 0.0433 0.0087 0.0091 0.3701 0.5472 0.0039 MIN. inch TYP. MAX. 0.1417 0.0118 0.1299 0.0039 0.0150 0.0126 0.6299 0.3858 0.5709 0.4370 0.1142 0.2441 OUTLINE AND MECHANICAL DATA 16.00 0.6220 11.10 0.4291 PowerSO-36 Note: "D and E1" do not include mold flash or protusions. - Mold flash or protusions shall not exceed 0.15mm (0.006") - Critical dimensions are "a3", "E" and "G". 0096119 C 5/7 Revision history L5961 4 Revision history Table 2. Date 21-Jan-2008 Document revision history Revision 1 Initial release. Changes 6/7 L5961 Please Read Carefully: Information in this document is provided solely in connection with ST products. STMicroelectronics NV and its subsidiaries ("ST") reserve the right to make changes, corrections, modifications or improvements, to this document, and the products and services described herein at any time, without notice. All ST products are sold pursuant to ST's terms and conditions of sale. Purchasers are solely responsible for the choice, selection and use of the ST products and services described herein, and ST assumes no liability whatsoever relating to the choice, selection or use of the ST products and services described herein. No license, express or implied, by estoppel or otherwise, to any intellectual property rights is granted under this document. If any part of this document refers to any third party products or services it shall not be deemed a license grant by ST for the use of such third party products or services, or any intellectual property contained therein or considered as a warranty covering the use in any manner whatsoever of such third party products or services or any intellectual property contained therein. UNLESS OTHERWISE SET FORTH IN ST'S TERMS AND CONDITIONS OF SALE ST DISCLAIMS ANY EXPRESS OR IMPLIED WARRANTY WITH RESPECT TO THE USE AND/OR SALE OF ST PRODUCTS INCLUDING WITHOUT LIMITATION IMPLIED WARRANTIES OF MERCHANTABILITY, FITNESS FOR A PARTICULAR PURPOSE (AND THEIR EQUIVALENTS UNDER THE LAWS OF ANY JURISDICTION), OR INFRINGEMENT OF ANY PATENT, COPYRIGHT OR OTHER INTELLECTUAL PROPERTY RIGHT. UNLESS EXPRESSLY APPROVED IN WRITING BY AN AUTHORIZED ST REPRESENTATIVE, ST PRODUCTS ARE NOT RECOMMENDED, AUTHORIZED OR WARRANTED FOR USE IN MILITARY, AIR CRAFT, SPACE, LIFE SAVING, OR LIFE SUSTAINING APPLICATIONS, NOR IN PRODUCTS OR SYSTEMS WHERE FAILURE OR MALFUNCTION MAY RESULT IN PERSONAL INJURY, DEATH, OR SEVERE PROPERTY OR ENVIRONMENTAL DAMAGE. ST PRODUCTS WHICH ARE NOT SPECIFIED AS "AUTOMOTIVE GRADE" MAY ONLY BE USED IN AUTOMOTIVE APPLICATIONS AT USER'S OWN RISK. Resale of ST products with provisions different from the statements and/or technical features set forth in this document shall immediately void any warranty granted by ST for the ST product or service described herein and shall not create or extend in any manner whatsoever, any liability of ST. ST and the ST logo are trademarks or registered trademarks of ST in various countries. Information in this document supersedes and replaces all information previously supplied. The ST logo is a registered trademark of STMicroelectronics. All other names are the property of their respective owners. (c) 2008 STMicroelectronics - All rights reserved STMicroelectronics group of companies Australia - Belgium - Brazil - Canada - China - Czech Republic - Finland - France - Germany - Hong Kong - India - Israel - Italy - Japan Malaysia - Malta - Morocco - Singapore - Spain - Sweden - Switzerland - United Kingdom - United States of America www.st.com 7/7 |
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