L5961PD STMICROELECTRONICS [STMicroelectronics], L5961PD Datasheet

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L5961PD

Manufacturer Part Number

L5961PD

Description

MOST power management device (PMD)

Manufacturer

STMICROELECTRONICS [STMicroelectronics]

Datasheet

1.L5961PD.pdf (7 pages)

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Features

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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

January 2008

For further information contact your local STMicroelectronics sales office.

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

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–

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–

I

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

2

C interface

Switch to power pulse (STPP)

Light ON (for status)

Activity on Diagnostic_I/O

ON/OFF switch

MOST power management device (PMD)

Rev 1

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

I

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.

2

C bus and fully compatible with MOST

Order code

L5961PD

L5961

Device summary

PowerSSO-36

PowerSSO-36

PowerSO-36

PowerSO-36

Package

L5961

Packing

Tube

Tube

Data Brief

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