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Order code: FLL99PM72GXP0614

DEVICE AT A GLANCE

TheL99PM72GXPisapowermanagement

systemICprovidingelectroniccontrol

unitswithenhancedpowersupply

functionsincludingvariousstandbymodes

aswellasLINandHS-CANphysical

communicationlayers.Itcontainstwolow

dropvoltageregulatorstosupplythesystem

microcontrollerandexternalperipheralloads

(sensors)andprovidessuperiorsystem

standbyfunctionalitywithprogrammable

localandremotewakeupcapabilities.

Inaddition,fourhigh-sidedrivers,twolow-

sidedriversandtwooperationalamplifiers

increasethesystemintegrationlevel.

ST’sstandardSPIInterfaceallowscontrol

anddiagnosisofthedeviceandenables

genericsoftwaredevelopment.The

L99PM72GXP,byintegratingbothHigh-

SpeedCAN(11898-6),andLINphysical

layers,providesallthefunctionsneeded

tobuildacompleteElectronicControlUnit

(ECU)forCarBodyapplications.Itsfeatures

aretailoredtospecificusessuchasclimate

controlmodulesanddoorcontrolunits,

aswellasseat,sunroof,trunkandtrailer

modulestonameafew.

UnlikestandardCANtransceiversorsystem

basischipscurrentlyonthemarket,the

L99PM72GXPisabletomonitortheCAN

busautonomously,withoutthemodule’s

mainprocessorbeingactive.Themoduleis

activatedonlywhenapre-configuredwake-

upframeisreceived.Itenablestightcontrol

ofthepowerconsumptionoftheon-board

electronicsthushelpingmanufacturers

reachtheirgoalofhigherfuelefficiencyand

reducedCO

DEVICE BLOCK DIAGrAM

LDO 2

external supply

Wake-in 1

Wake-in 2

Wake-in 3

4 channel

PWM generator

Timer 1

Timer 2

State machine

OPV 1

OPV 2

Physical layer

Physical layer

High precision

oscillator

Protocoll

handler

Wake-up

frame

detection

LDO 1

µCsupply

High side 1

High side 2

High side 3

High side 4

Low side 1

Low side 2

Fail safe

output

Windows

watchdog

Protection

and diagnosis

L99PM72GXP

SPI

CAN with selective wake (ISO 11898-6)