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MAX1507ETA Datasheet(PDF) 1 Page - Maxim Integrated Products |
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MAX1507ETA Datasheet(HTML) 1 Page - Maxim Integrated Products |
1 / 12 page General Description The MAX1507 is an intelligent, stand-alone constant-cur- rent, constant-voltage (CCCV), thermally regulated linear charger for a single-cell lithium-ion (Li+) battery. The MAX1507 integrates the current-sense circuit, MOS pass element, and thermal-regulation circuitry, and also elimi- nates the reverse-blocking Schottky diode to create the simplest and smallest charging solution for hand-held equipment. The MAX1507 functions as a stand-alone charger to control the charging sequence from the prequalification state through fast-charge, top-off charge, and full- charge indication. Proprietary thermal-regulation circuitry limits the die temperature when fast charging or while exposed to high ambient temperatures, allowing maximum charg- ing current without damaging the IC. The MAX1507 achieves high flexibility by providing an adjustable fast-charge current and thermal regulation setpoints. Other features include the charging status (CHG) of the battery and an active-low control input (EN). The MAX1507 accepts a +4.25V to +13V supply, but dis- ables charging when the input voltage exceeds +7V to protect against unqualified or faulty AC adapters. The MAX1507 operates over the extended temperature range (-40°C to +85°C) and is available in a compact 8-pin thermally enhanced 3mm x 3mm Thin DFN pack- age with 0.8mm height. Applications Cellular and Cordless Phones PDAs Digital Cameras and MP3 Players USB Appliances Charging Cradles and Docks Bluetooth™ Equipment Features ♦ Stand-Alone Linear 1-Cell Li+ Battery Charger ♦ No External FET, Reverse-Blocking Diode, or Current-Sense Resistor Required ♦ Programmable Fast-Charge Current (0.8A max) ♦ Proprietary Programmable Die-Temperature Regulation Control (+90°C, +100°C, and +130°C) ♦ +4.25V to +13V Input Voltage Range with Input Overvoltage Protection (OVP) Above +7V ♦ Charge-Current Monitor for Fuel Gauging ♦ Low Dropout Voltage—130mV at 0.425A ♦ Input Power-Source Detection Output (VL) and Charge-Enable Input (EN) ♦ Soft-Start Limits Inrush Current ♦ Charge Status Output (CHG) for LED or Microprocessor Interface ♦ Small 3mm x 3mm 8-Pin Thin DFN Package, 0.8mm High Linear Li+ Battery Charger with Integrated Pass FET and Thermal Regulation in 3mm x 3mm Thin DFN ________________________________________________________________ Maxim Integrated Products 1 1 2 3mm x 3mm THIN DFN TOP VIEW 3 4 MAX1507 8 76 5 Pin Configuration Ordering Information MAX1507 1µF INPUT 4.25V TO 13V 2.80kΩ IN EN VL CHG 1µF Li+ 4.2V BATT ISET TEMP GND 0.47µF OFF ON PART TEMP RANGE PIN-PACKAGE TOP MARK MAX1507ETA -40 °C to +85°C8 Thin DFN-EP* AGW Typical Operating Circuit 19-2899; Rev 1; 11/03 For pricing, delivery, and ordering information, please contact Maxim/Dallas Direct! at 1-888-629-4642, or visit Maxim’s website at www.maxim-ic.com. EVALUATION KIT AVAILABLE Bluetooth is a trademark of Ericsson. *EP = Exposed paddle. |
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