ISL9519IRTZ-T Datasheet ISL9519IRTZ, ISL9519IRTZ-T | P1-P3

ISL9519

NarrowVDCRegulator/Charger

withSMBusInterface

KeyFeatures

±0.5%SystemVoltageAccuracy(‐10°Cto+100°C)

±3%AccurateInputCurrentLimit(‐10°Cto+100°C)

±3%AccurateBatteryChargeCurrentLimit

VariableSwitchingFrequencyatLightLoadConditionsforHigherEfficiency

FixedFrequencyOperationatHigherLoads

FixedFrequencyModecanbeForcedbyanExternalPin

TrickleChargeSystemforDeeplyDischargedBatteries

tomaticTrickleChargeCurrent(256mA)

HoldsMinimumVoltagetoSystem

SMBus2‐WireSerialInterface

DefaultSystemVoltageValuesfo r1‐Cell,2‐Cellor3‐CellOperationSelectedbyanExternalPin

AdapterIn‐rushFETControl

AdapterIsolationFETControl

BatteryShortCircuitProtection

FastSystem‐LoadTransientRespo nse

MonitorOutputs

AdapterCurrent(2.5%Accuracy)

AC‐adapterPresen

tIndicat

11‐BitMaxSystemVoltageSetting

7‐BitMinSystemVoltageSetting

6‐BitChargeCurrentSetting

Over8ABatteryChargerCurrent

6‐BitAdapterCurrentSetting

Over8AAdapterCurrent

+4.5Vto+22VAdapterVoltageRange

Pb‐Free(RoHSCompliant)

Description

TheISL9519isahighlyintegratedNarrowVDCsystemvoltageregulatorand

batterychargercontroller.Operatingparametersareprogrammableoverthe

SystemManagementBus(SMBus).TheISL9519isdesignedforapplications

wherethesystempowersourceiseitherthebatterypackortheoutputofthe

regulator/charger.Thismakesthemaxvol

tagetothesystemequaltothemax

batteryvoltageinsteadofthemaxadaptervoltage.TheISL9519alsoincludesa

patentedsystemtocontroltricklechargingdeeplydischargedbatterieswhile

maintainingsystemvoltageatauserdefinedminimum.Highefficiencyis

achievedwithaDC/DCsynchronous‐rectifierbuckconverter,equippedwith

dio

deemulationandvariableswitchingfrequencyforenhancedlightload

efficiencyandAC‐adapterboostingprevention.TheISL9519canchargeone,

twoorthreeseriesconnectedLithium‐ioncells,atupto8Achargecurrent.

Defaultsettingsfor1‐,2‐or3‐celloperationatpower‐upareselectedbyan

extern

alpin.IntegratedMOSFETdriversandbootstrapdioderesultinfewer

componentsandsmallerimplementationarea.Lowoffsetcurrent‐sense

amplifiersprovidehighaccuracy.

TheISL9519providesanopendraindigitaloutputthatindicatesthepresence

oftheAC‐adapter.TheISL9519alsoprovidesananalogoutputthatindicat

es

theadaptercurrent.

Applications

NotebookComputers

TabletPCs

PortableEquipmentwithRechargeableBatteries

Parameters ISL9519

(min)(V) 4.5

(max)(V) 22

InputCurrentLimitAccuracy(%) ±3

BatteryChargeVoltage(V) 2Vto16.3Vin

ChargingVoltageAccuracyMax(%) ±0.5

BatteryChargeVoltageAdjust(%) 16mVsteps

ChargeCurrentLimitAccuracy(%) ±3

TrickleChargeCurrentLimitAccuracy(%) 166Ato346mA

AutomaticTrickleChargeTyp(V) 4.7

BatteryLeakageCurrentMax(μA) 25(DCIN=0V,No

AutomaticPowerSourceSelectio

n Yes

AutomaticPowerSourceSelection Yes

Topology Variable

SwitchingFrequency(typ)(kHz) 400

MaxDutyCycle(%) 99

AudibleNoise No

OperatingTempRange(°C) ‐10to100

ThermalShutdown(°C) 150°C

BatteryChemistry Multi‐Cell

Li+/Polymer

P1-P3

ISL9519IRTZ-T

Mfr. #:

Buy ISL9519IRTZ-T

Manufacturer:

Renesas / Intersil

Description:

Battery Management w/Anneal Notebook B attery Charger, 4X4

Lifecycle:

New from this manufacturer.

Delivery:

DHL FedEx Ups TNT EMS

Payment:

T/T Paypal Visa MoneyGram Western Union

ISL9519IRTZ-T

ISL9519IRTZ-T

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