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MAX8804W Dataheets PDF



Part Number MAX8804W
Manufacturers Maxim Integrated Products
Logo Maxim Integrated Products
Description USB/AC Adapter Chargers
Datasheet MAX8804W DatasheetMAX8804W Datasheet (PDF)

19-0785; Rev 1; 10/07 KIT ATION EVALU E L B A AVAIL High-Voltage, Dual-Input, USB/AC Adapter Chargers in 2mm x 3mm TDFN General Description Features ♦ Complete Chargers for Single-Cell Li+ Battery ♦ Dual-Input, 30V AC Adapter/16V USB ♦ No External FET, Blocking Diode, or Sense Resistor Required ♦ Automatic USB/AC Adapter Input Selection ♦ Easy Programmable Fast-Charge Current and Top-Off Threshold ♦ Proprietary Die Temperature Regulation Control ♦ ±5% Fast-Charge Current-Limit Accuracy ♦ Batte.

  MAX8804W   MAX8804W


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19-0785; Rev 1; 10/07 KIT ATION EVALU E L B A AVAIL High-Voltage, Dual-Input, USB/AC Adapter Chargers in 2mm x 3mm TDFN General Description Features ♦ Complete Chargers for Single-Cell Li+ Battery ♦ Dual-Input, 30V AC Adapter/16V USB ♦ No External FET, Blocking Diode, or Sense Resistor Required ♦ Automatic USB/AC Adapter Input Selection ♦ Easy Programmable Fast-Charge Current and Top-Off Threshold ♦ Proprietary Die Temperature Regulation Control ♦ ±5% Fast-Charge Current-Limit Accuracy ♦ Battery Pack Detection Input (MAX8804W) ♦ Power-Present and Charger-Status Outputs ♦ No Prequalification Charge (MAX8804Y) ♦ Tiny 2mm x 3mm Thermally Enhanced TDFN Package ♦ USB Charging Protected by US Patent #6,507,172 MAX8804W/MAX8804Y/MAX8804Z The MAX8804W/MAX8804Y/MAX8804Z intelligent, dual-input, stand-alone, constant-current, constant-voltage (CCCV), thermally regulated linear chargers are designed for a single-cell lithium-ion (Li+) battery. They integrate the current-sense circuit, MOS pass element, thermal-regulation circuitry, and overvoltage protection (OVP), and eliminate the reverse-blocking Schottky diode to create a simple and small charging solution for handheld equipment. www.DataSheet4U.com The MAX8804W/MAX8804Z function as stand-alone chargers to control the charging sequence from the prequalification state through fast-charge, top-off charge, and full-charge indication. The MAX8804Y eliminates the prequalification state to allow startup into a load without a battery. Proprietary thermal-regulation circuitry limits the die temperature when fast-charging or while exposed to high ambient temperatures, allowing maximum charging current without damaging the IC. The MAX8804Y/MAX8804Z achieve high flexibility by providing an adjustable DC/USB fast-charge current through a simple single-wire interface (SET input). The chargers automatically select between either a USB or AC adapter input source. The AC adapter charge current is programmable from 400mA to 700mA in 50mA steps through a serial interface. The USB charge current is programmable to 95mA, 380mA, or 475mA through the same interface. Other features include an active-low battery charging-status indicator (CHG), an active-low power-OK indicator ( POK ), an active-low USB input detection output ( USBPWR ) on the MAX8804Y/MAX8804Z, and battery pack detection (DETBAT) on the MAX8804W. The MAX8804W/MAX8804Y/MAX8804Z accept a 4.15V to 30V DC source voltage or a 4.15V to 16V USB input voltage, but disable charging when either input voltage exceeds 7.5V to protect against unqualified or faulty input sources. The MAX8804W/MAX8804Y/MAX8804Z operate over the extended temperature range (-40°C to +85°C) and are available in a tiny 8-pin thermally enhanced 2mm x 3mm TDFN package. Ordering Information PART MAX8804WETA+ MAX8804YETA+ MAX8804ZETA+ PINPACKAGE 8 TDFN-EP* 8 TDFN-EP* 8 TDFN-EP* PKG CODE T823+1 T823+1 T823+1 TOP MARK AAP AAD AAC *EP = Exposed paddle. +Denotes a lead-free package. Note: All devices are specified to operate over the -40°C to +85°C operating temperature range. Typical Application Circuit +3.3V AC ADAPTER DC 1μ F GND Applications Cell Phones/Smartphones Digital Cameras Portable Media Players MP3 Players Other Handheld Devices Pin Configuration appears at end of data sheet. USB PORT USB 1μ F MAX8804W MAX8804Y MAX8804Z CHG POK (DETBAT) BAT 2.2μF Li+ ENABLE/DISABLE AND PROGRAMMING SET NOTE: () FOR MAX8804W, < > FOR MAX8804Y/MAX8804Z ________________________________________________________________ Maxim Integrated Products 1 For pricing, delivery, and ordering information, please contact Maxim Direct at 1-888-629-4642, or visit Maxim's website at www.maxim-ic.com. High-Voltage, Dual-Input, USB/AC Adapter Chargers in 2mm x 3mm TDFN MAX8804W/MAX8804Y/MAX8804Z ABSOLUTE MAXIMUM RATINGS DC to GND .............................................................-0.3V to +30V USB to GND ...........................................................-0.3V to +16V BAT, CHG, SET, POK, USBPWR, DETBAT to GND...............................................................-0.3V to +5.5V Continuous Power Dissipation (TA = +70°C) 8-Pin TDFN 2mm x 3mm (derate 16.7mW/°C above +70°C) (multilayer board) .......................................................1333mW Operating Temperature Range ...........................-40°C to +85°C Junction Temperature ......................................................+150°C Storage Temperature Range .............................-65°C to +150°C Lead Temperature (soldering, 10s) .................................+300°C www.DataSheet4U.com Stresses beyond those listed under “Absolute Maximum Ratings” may cause permanent damage to the device. These are stress ratings only, and functional operation of the device at these or any other conditions beyond those indicated in the operational sections of the specifications is not implied. Exposure to absolute maximum rating conditions for extended periods may affect device .


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