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L5961 Datasheet(PDF) 1 Page - STMicroelectronics |
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L5961 Datasheet(HTML) 1 Page - STMicroelectronics |
1 / 7 page Data Brief For further information contact your local STMicroelectronics sales office. January 2008 Rev 1 1/7 7 L5961 MOST power management device (PMD) 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 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 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 re- verification 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 25µA current) and Ultra-zero power mode (5µA). 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 Order code Package Packing L5961 PowerSSO-36 Tube L5961PD PowerSO-36 Tube PowerSO-36 PowerSSO-36 www.st.com |
Similar Part No. - L5961_08 |
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Similar Description - L5961_08 |
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