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ISL6294IRZ-T Datasheet(PDF) 1 Page - Intersil Corporation |
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ISL6294IRZ-T Datasheet(HTML) 1 Page - Intersil Corporation |
1 / 9 page 1 ® FN9174.4 CAUTION: These devices are sensitive to electrostatic discharge; follow proper IC Handling Procedures. 1-888-INTERSIL or 1-888-468-3774 | Intersil (and design) is a registered trademark of Intersil Americas Inc. Copyright Intersil Americas Inc. 2005, 2007. All Rights Reserved All other trademarks mentioned are the property of their respective owners. ISL6294 High Input Voltage Charger The ISL6294 is a cost-effective, fully integrated high input voltage single-cell Li-ion battery charger. The charger uses a CC/CV charge profile required by Li-ion batteries. The charger accepts an input voltage up to 28V but is disabled when the input voltage exceeds the OVP threshold, typically 6.8V, to prevent excessive power dissipation. The 28V rating eliminates the overvoltage protection circuit required in a low input voltage charger. The charge current and the end-of-charge (EOC) current are programmable with external resistors. When the battery voltage is lower than typically 2.55V, the charger preconditions the battery with typically 20% of the programmed charge current. When the charge current reduces to the programmable EOC current level during the CV charge phase, an EOC indication is provided by the CHG pin, which is an open-drain output. An internal thermal foldback function protects the charger from any thermal failure. Two indication pins (PPR and CHG) allow simple interface to a microprocessor or LEDs. When no adapter is attached or when disabled, the charger draws less than 1µA leakage current from the battery. Pinouts Features • Complete Charger for Single-Cell Li-ion/Polymer Batteries • Integrated Pass Element and Current Sensor • No External Blocking Diode Required • Low Component Count and Cost • 1% Voltage Accuracy • Programmable Charge Current • Programmable End-of-Charge Current • Charge Current Thermal Foldback for Thermal Protection • Trickle Charge for Fully Discharged Batteries • 28V Maximum Voltage for the Power Input • Power Presence and Charge Indications • Less Than 1µA Leakage Current off the Battery When No Input Power Attached or Charger Disabled • Ambient Temperature Range: -40°C to +85°C • 8 Ld 2x3 DFN and 8 Ld SOIC Packages • Pb-Free Plus Anneal Available (RoHS Compliant) Applications • Mobile Phones • Blue-Tooth Devices •PDAs • MP3 Players • Stand-Alone Chargers • Other Handheld Devices Ordering Information PART NUMBER (Note) PART MARKING TEMP. RANGE (°C) PACKAGE (Pb-free) PKG. DWG. # ISL6294IRZ-T 94Z -40 to +85 8 Ld 2x3 DFN L8.2x3 ISL6294IBZ 6294 IBZ -40 to +85 8 Ld SOIC M8.15 ISL6294IBZ-T 6294 IBZ -40 to +85 8 Ld SOIC M8.15 NOTE: Intersil Pb-free plus anneal products employ special Pb-free material sets; molding compounds/die attach materials and 100% matte tin plate termination finish, which are RoHS compliant and compatible with both SnPb and Pb-free soldering operations. Intersil Pb-free products are MSL classified at Pb-free peak reflow temperatures that meet or exceed the Pb-free requirements of IPC/JEDEC J STD-020. BAT IREF IMIN GND VIN PPR CHG EN 2 3 4 1 5 8 7 6 2 3 4 1 7 6 5 8 VIN PPR CHG EN BAT IREF IMIN GND ISL6294 (8 LD SOIC) TOP VIEW Data Sheet July 9, 2007 BAT IREF IMIN GND VIN PPR CHG EN 2 3 4 1 5 8 7 6 2 3 4 1 7 6 5 8 VIN PPR CHG EN BAT IREF IMIN GND ISL6294 (8 LD SOIC) TOP VIEW ISL6294 (8 LD DFN) TOP VIEW |
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