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.

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