DATA SHORT To request the full datasheet, please visit www.intersil.com/products/isl9519 ISL9519 FN6773 Rev 3.00 Narrow VDC Regulator/Charger with SMBus Interface March 1, 2012 The ISL9519 is a highly integrated Narrow VDC system voltage Features regulator and battery charger controller. Operating parameters 0.5% System Voltage Accuracy (-10C to +100C) are programmable over the System Management Bus (SMBus). The ISL9519 is designed for applications where the system 3% Accurate Input Current Limit (-10C to +100C) power source is either the battery pack or the output of the 3% Accurate Battery Charge Current Limit regulator/charger. This makes the max voltage to the system Variable Switching Frequency at Light Load Conditions for equal to the max battery voltage instead of the max adapter Higher Efficiency voltage. The ISL9519 also includes a patented system to control trickle charging deeply discharged batteries while maintaining Fixed Frequency Operation at Higher Loads system voltage at a user defined minimum. High efficiency is - Fixed Frequency Mode can be Forced by an External Pin achieved with a DC/DC synchronous-rectifier buck converter, Trickle Charge System for Deeply Discharged Batteries equipped with diode emulation and variable switching frequency for enhanced light load efficiency and AC-adapter -Automatic Trickle Charge Current (256mA) boosting prevention. The ISL9519 can charge one, two or three - Holds Minimum Voltage to System series connected Lithium-ion cells, at up to 8A charge current. SMBus 2-Wire Serial Interface Default settings for 1-, 2- or 3-cell operation at power-up are selected by an external pin. Integrated MOSFET drivers and Default System Voltage Values for 1-Cell, 2-Cell or bootstrap diode result in fewer components and smaller 3-Cell Operation Selected by an External Pin implementation area. Low offset current-sense amplifiers Adapter In-rush FET Control provide high accuracy. Adapter Isolation FET Control The ISL9519 provides an open drain digital output that Battery Short Circuit Protection indicates the presence of the AC-adapter. The ISL9519 also provides an analog output that indicates the adapter current. Fast System-Load Transient Response Monitor Outputs Related Literature - Adapter Current (2.5% Accuracy) See AN1562, ISL9519EVAL1Z Evaluation Board Setup - AC-adapter Present Indicator Procedure for applications with adapter voltage > 7V 11-Bit Max System Voltage Setting See AN1570, ISL9519EVAL2Z Evaluation Board Setup 7-Bit Min System Voltage Setting Procedure for applications with adapter voltage > 5V 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) Applications Notebook Computers Tablet PCs Portable Equipment with Rechargeable Batteries FN6773 Rev 3.00 Page 1 of 2 March 1, 2012ISL9519 Copyright Intersil Americas LLC 2009-2012. All Rights Reserved. All trademarks and registered trademarks are the property of their respective owners. For additional products, see www.intersil.com/en/products.html Intersil products are manufactured, assembled and tested utilizing ISO9001 quality systems as noted in the quality certifications found at www.intersil.com/en/support/qualandreliability.html Intersil products are sold by description only. Intersil may modify the circuit design and/or specifications of products at any time without notice, provided that such modification does not, in Intersil s sole judgment, affect the form, fit or function of the product. Accordingly, the reader is cautioned to verify that datasheets are current before placing orders. Information furnished by Intersil is believed to be accurate and reliable. However, no responsibility is assumed by Intersil or its subsidiaries for its use nor for any infringements of patents or other rights of third parties which may result from its use. No license is granted by implication or otherwise under any patent or patent rights of Intersil or its subsidiaries. For information regarding Intersil Corporation and its products, see www.intersil.com FN6773 Rev 3.00 Page 2 of 2 March 1, 2012