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ISL6293-2CRZ Datasheet(PDF) 1 Page - Intersil Corporation |
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ISL6293-2CRZ Datasheet(HTML) 1 Page - Intersil Corporation |
1 / 8 page 1 ® FN9180.0 PRELIMINARY ISL6293 Li-ion/Li Polymer Battery Charger Accepting Two Power Sources The ISL6293 is a fully integrated low-cost single-cell Li-ion or Li-polymer battery charger. The charger accepts two power inputs, normally one from a USB (Universal Serial Bus) port and another one from a desktop cradle. The ISL6293 is an ideal charger for smart handheld devices that need to communicate with a personal computer via USB. The ISL6293 features 28V and 7V maximum voltages for the cradle and the USB inputs respectively. The 28V rating allows low-cost adapters be safely used. When both inputs are powered, the cradle input is used to charge the battery. The charge current is independently programmable for both inputs with two small resistors. One additional USBP pin allows the selection of high-power or low-power port for the USB input. The charger is self-protected against over temperature. If the die temperature rises above 100°C, a thermal foldback function reduces the charge current automatically to prevent further temperature rise. The charger preconditions the battery with low current when the battery voltage is below 2.6V. The charger has two indication pins. The PPR (power present) pin outputs an open-drain logic LOW when either the cradle or the USB input power is attached. The CHG (charge) pin is also an open-drain output that indicates a logic LOW when the charge current is above a minimum current level. When the charge current is below the minimum current, the charger remains in operation but the CHG pin indicates a logic HIGH signal. For simplicity, the charger does not have re-charge or timer functions. Features • Complete Charger for Single-Cell Li-ion/Polymer Batteries • Accept Two Power Sources • Low Component Count • Integrated Pass Element • Integrated Charge-Current Sensor with 10% Accuracy • No External Blocking Diode Required • Charge Current Thermal Foldback for Thermal Protection • 28V Maximum Voltage for the Cradle Input • Charge Indication • Adapter Presence Indication • Less than 1µA Leakage Current off the Battery when No Input Power Attached • Ambient Temperature Range: -40°C to 85°C • Thermally-Enhanced 3x3 DFN Package • Pb-free Available Applications • Smart Handheld Devices • Cell Phones, PDAs, MP3 Players • Digital Still Cameras • Handheld Test Equipment Related Literature • Technical Brief TB363 “Guidelines for Handling and Processing Moisture Sensitive Surface Mount Devices (SMDs)” • Technical Brief TB389 “PCB Land Pattern Design and Surface Mount Guidelines for QFN Packages” Ordering Information PART # TEMP. RANGE (°C) PACKAGE PKG. DWG. # ISL6293-2CR -40 to 85 10 Ld 3x3 DFN L10.3x3 ISL6293-2CRZ (Note) -40 to 85 10 Ld 3x3 DFN (Pb-free) L10.3x3 ISL6293-2CR-T 10 Ld 3x3 DFN Tape and Reel ISL6293-2CRZ-T (Note) 10 Ld 3x3 DFN Tape and Reel (Pb-free) NOTE: Intersil Pb-free products employ special Pb-free material sets; molding compounds/die attach materials and 100% matte tin plate termination finish, which is 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-020C. Pinout ISL6293-2 (DFN) TOP VIEW 2 3 4 1 5 9 8 7 10 6 BAT ICDL GND USBP IUSB CRDL USB PPR CHG EN Data Sheet October 5, 2004 CAUTION: These devices are sensitive to electrostatic discharge; follow proper IC Handling Procedures. 1-888-INTERSIL or 321-724-7143 | Intersil (and design) is a registered trademark of Intersil Americas Inc. Copyright Intersil Americas Inc. 2004. All Rights Reserved All other trademarks mentioned are the property of their respective owners. |
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