ISL9519Q Narrow VDC Regulator/Charger with SMBus Interface
ISL9519Q
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Narrow VDC Regulator/Charger with SMBus Interface
Features Description
Technical Documentation
Pricing / Samples
iSim Design Simulation
Tools And Support
Related Devices
Datasheet
ISL9519Q
The ISL9519Q datasheet is restricted to a very limited number of customers. To request a datasheet please
email Jia Wei at jwei@intersil.com
Input Voltage Range (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) (µA)
Automatic Power Source Selection
DC Adapter Detection
Topology
Switching Frequency (typ) (kHz)
Max Duty Cycle (%)
Audible Noise
Operating Temp. Range (°C)
Thermal Shutdown (°C)
Input Voltage (min) (V)
Input Voltage (max) (V)
Battery Chemistry
4.5 to 22
±3
2V to 16.3V in 16mV Steps
±0.5
16mV steps
±3
166A to 346mA
Yes (Threshold Set by User)
25 (DCIN=0V, No System Load)
Yes
No
Variable Frequency Synchronous Buck
100 to 400
99
No
-10 to 100
150
4.5
22
Multi-Cell Li+/Polymer
Product Information
Key Features
±0.5% System Voltage Accuracy (-10°C to +100°C)
±3% Accurate Input Current Limit
±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 2-Wire Serial Interface
Default System Voltage Values for 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 Response
Monitor Outputs
Charge Current (2.5% Accuracy)
AC-adapter Present Indicator
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
http://www.intersil.com/products/print.asp?id=ISL9519Q
11/9/2011
ISL9519Q Narrow VDC Regulator/Charger with SMBus Interface
Page 2 of 3
+4.5V to +22V Adapter Voltage Range
Pb-Free (RoHS Compliant)
Description
The ISL9519Q is a highly integrated Narrow VDC system voltage regulator and battery charger controller. Operating
parameters are programmable over the System Management Bus (SMBus). The ISL9519Q 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 ISL9519Q 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 diode
emulation and variable switching frequency for enhanced light load efficiency and AC-adapter boosting prevention. The
ISL9519Q 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 external pin. Integrated MOSFET drivers and bootstrap
diode result in fewer components and smaller implementation area. Low offset current-sense amplifiers provide high
accuracy.
The ISL9519Q provides an open drain digital output that indicates the presence of the AC-adapter. The ISL9519Q also
provides an analog output that indicates the battery charge current.
Pricing / Packaging / Samples / Ordering
iBuy direct from Intersil
Check distributor inventory
iBuy direct - out of stock
Request samples
Available in RoHS/Pb-Free
Design-In
Status
Temp.
Package
MSL
ISL9519QHRTZ
Active
Hi-Temp Comm
28 Ld TQFN
1
ISL9519QHRTZ-T
Active
Hi-Temp Comm
28 Ld TQFN T+R
1
Part No.
Price
US $
The price listed is the manufacturer's suggested retail price for quantities of 1K units. However, prices in
today's market are fluid and may change without notice.
MSL = Moisture Sensitivity Level - per IPC/JEDEC J-STD-020
SMD = Standard Microcircuit Drawing
Technical Documentation
Datasheet(s):
The ISL9519Q datasheet is restricted to a very limited number of customers. To request a datasheet please email Jia
Wei at jwei@intersil.com
Evaluation Board(s):
ISL9519 CONTROL Software Installer
ISL9519EVAL1Z Evaluation Board Setup Procedure
ISL9519TQFNEVAL2Z Evaluation Board Setup Procedure
Tools And Support
iSim Design Simulation
No Models Available
Design Model(s):
ISL9519 Compensation Component Calculator
Applications
Notebook Computers
Netbook and Tablet PCs
Handheld Electronic Devices
Portable Equipment with Rechargeable Batteries
Related Devices
ISL6251
Parametric Table
Low Cost Multi-Chemistry Battery Charger Controller
http://www.intersil.com/products/print.asp?id=ISL9519Q
11/9/2011
ISL9519Q Narrow VDC Regulator/Charger with SMBus Interface
ISL6251A
Low Cost Multi-Chemistry Battery Charger Controller
ISL6252
Highly Integrated Battery Charger Controller for Notebook Computers
Page 3 of 3
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ISL6256A
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ISL9519C
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©2003-2011. Intersil Americas Inc. All rights reserved.
http://www.intersil.com/products/print.asp?id=ISL9519Q
11/9/2011
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