ISL9519IRTZ-T

ISL9519IRTZ-T Datasheet

ISL9519 Narrow VDC Regulator/Charger with SMBus Interface

Part	Datasheet
ISL9519IRTZ-T	ISL9519IRTZ-T (pdf)

Related Parts	Information
ISL9519IRTZ	ISL9519IRTZ

PDF Datasheet Preview
ISL9519 Narrow VDC Regulator/Charger with SMBus Interface Key Features System Voltage Accuracy to +100°C ±3% Accurate Input Current Limit 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 Automatic Trickle Charge Current 256mA Holds Minimum Voltage to System SMBus Serial Interface Default System Voltage Values for or Operation Selected by an External Pin Adapter FET Control Adapter Isolation FET Control Battery Short Circuit Protection Fast Transient Response Monitor Outputs Adapter Current Accuracy Present Indicator Max System Voltage Setting Min System Voltage Setting Charge Current Setting Over 8A Battery Charger Current Adapter Current Setting Over 8A Adapter Current +4.5V to +22V Adapter Voltage Range RoHS Compliant 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 voltage 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 buck converter, equipped with diode emulation and variable switching frequency for enhanced light load efficiency and boosting prevention. The ISL9519 can charge one, two or three series connected cells, at up to 8A charge current. Default settings for or operation at are selected by an external pin. Integrated MOSFET drivers and bootstrap diode result in fewer components and smaller implementation area. Low offset amplifiers provide high accuracy. The ISL9519 provides an open drain digital output that indicates the presence of the ISL9519 also provides an analog output that indicates the adapter current. Notebook Computers Tablet PCs Portable Equipment with Rechargeable Batteries Parameters ISL9519 VIN min V VIN max V Input Current Limit Accuracy % Battery Charge Voltage V Charging Voltage Accuracy Max % Battery Charge Voltage Adjust % Charge Current Limit Accuracy % Trickle Charge Current Limit Accuracy % Automatic Trickle Charge Typ V Battery Leakage Current Max uA Automatic Power Source Selection Automatic Power Source Selection Topology ±3 2V to 16.3V in 16mV steps ±3 166A to 346mA 25 DCIN=0V, No Yes Variable Switching Frequency typ kHz Max Duty Cycle % Audible Noise Operating Temp Range °C Thermal Shutdown °C Battery Chemistry 400 99 No to 100 150 °C Li+/Polymer

PDF Datasheet Preview

ISL9519 Narrow VDC Regulator/Charger with SMBus Interface

Key Features

System Voltage Accuracy to +100°C ±3% Accurate Input Current Limit 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 Automatic Trickle Charge Current 256mA Holds Minimum Voltage to System SMBus Serial Interface Default System Voltage Values for or Operation Selected by an External Pin Adapter FET Control Adapter Isolation FET Control Battery Short Circuit Protection Fast Transient Response Monitor Outputs Adapter Current Accuracy Present Indicator Max System Voltage Setting Min System Voltage Setting Charge Current Setting Over 8A Battery Charger Current Adapter Current Setting Over 8A Adapter Current +4.5V to +22V Adapter Voltage Range RoHS Compliant

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 voltage 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 buck converter, equipped with diode emulation and variable switching frequency for enhanced light load efficiency and boosting prevention. The ISL9519 can charge one, two or three series connected cells, at up to 8A charge current. Default settings for or operation at are selected by an external pin. Integrated MOSFET drivers and bootstrap diode result in fewer components and smaller implementation area. Low offset amplifiers provide high accuracy.

The ISL9519 provides an open drain digital output that indicates the presence of the ISL9519 also provides an analog output that indicates the adapter current.

Notebook Computers Tablet PCs Portable Equipment with Rechargeable Batteries

Parameters

ISL9519

VIN min V

VIN max V Input Current Limit Accuracy % Battery Charge Voltage V

Charging Voltage Accuracy Max % Battery Charge Voltage Adjust % Charge Current Limit Accuracy % Trickle Charge Current Limit Accuracy % Automatic Trickle Charge Typ V Battery Leakage Current Max uA

Automatic Power Source Selection Automatic Power Source Selection Topology
±3 2V to 16.3V in
16mV steps
±3 166A to 346mA
25 DCIN=0V, No

Yes Variable

Switching Frequency typ kHz Max Duty Cycle % Audible Noise Operating Temp Range °C Thermal Shutdown °C Battery Chemistry
400 99 No
to 100 150 °C

Li+/Polymer

Notice: we do not provide any warranties that information, datasheets, application notes, circuit diagrams, or software stored on this website are up-to-date or error free. The archived ISL9519IRTZ-T Datasheet file may be downloaded here without warranties.

Datasheet ID: ISL9519IRTZ-T 639205