Narrow VDC Regulator/Charger with SMBus Interface Evaluation Board
The ISL9519CEVAL1Z evaluation board is used to evaluate the ISL9519C narrow VDC regulator/charger with SMBus interface. This evaluation board includes a USB to SMBus...
Overview
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 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 synchronous-rectifier buck converter, equipped with diode 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 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 ISL9519 provides an open drain digital output that indicates the presence of the AC-adapter. The ISL9519 also provides an analog output that indicates the adapter current.
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
- 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
- Adapter 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
- +4.5V to +22V Adapter Voltage Range
- Pb-Free (RoHS Compliant)
Comparison
Applications
Applications
- Notebook Computers
- Tablet PCs
- Portable Equipment with Rechargeable Batteries
Documentation
= Featured Documentation
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| Type | Title | Date |
| Datasheet - Short-form | PDF 161 KB | |
| Product Change Notice | PDF 169 KB | |
| Product Change Notice | PDF 294 KB | |
| Datasheet | PDF 1.34 MB | |
| Product Change Notice | PDF 248 KB | |
| Application Note | PDF 509 KB | |
| Application Note | PDF 397 KB | |
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Design & Development
Software & Tools
Software & Tools
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Software type
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Company
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| iSim:PE Offline Simulation Tool iSim Personal Edition (iSim:PE) speeds the design cycle and reduces risk early in any project, identifying parts that can be used in current as well as next-generation designs.
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Simulator | Renesas |
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Boards & Kits
Narrow VDC Regulator/Charger with SMBus Interface Evaluation Board
The ISL9519EVAL1Z evaluation board is used to evaluate the ISL9519 narrow VDC regulator/charger with SMBus interface. This evaluation board includes a USB to SMBus...
Featured Documents:
Narrow VDC Regulator/Charger with SMBus Interface Evaluation Board for Input >7V
The ISL9519TQFNEVAL2Z evaluation board is used to evaluate the ISL9519 narrow VDC regulator/charger with SMBus interface. The ISL9519 is a highly integrated battery...
Featured Documents:
Models
ECAD Models
Schematic symbols, PCB footprints, and 3D CAD models from SamacSys can be found by clicking on products in the Product Options table. If a symbol or model isn't available, it can be requested directly from the website.
Processing table
| TQFN | Tray | 3 | 3.026 | Get Samples, | |
ISL9519HRTZ-T Active Samples Available
Buy Now
|
TQFN | Reel | 3 | 5.181 | Get Samples, |
| TQFN | Tray | 3 | Get Samples, | ||
ISL9519IRTZ-T Active Samples Available |
TQFN | Reel | 3 | Get Samples, |
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