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

external sync

and ultra zero power mode feature)

specification

control unit

–

Switch to power pulse (STPP)

–

Light ON (for status)

–

Activity on Diagnostic_I/O

–

ON/OFF switch

(standard LIN2.0)

monitoring

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

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

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