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MAX8804Y

Maxim Integrated Products
Part Number MAX8804Y
Manufacturer Maxim Integrated Products
Description USB/AC Adapter Chargers
Published Sep 28, 2007
Detailed Description www.DataSheet4U.com 19-0785; Rev 0; 4/07 High-Voltage, Dual-Input, USB/AC Adapter Chargers in 2mm x 3mm TDFN General De...
Datasheet PDF File MAX8804Y PDF File

MAX8804Y
MAX8804Y


Overview
www.
DataSheet4U.
com 19-0785; Rev 0; 4/07 High-Voltage, Dual-Input, USB/AC Adapter Chargers in 2mm x 3mm TDFN General Description The 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.
The MAX8804Z functions as a stand-alone charger to control the charging sequence from the prequalification state through fast-charge, top-off charge, and fullcharge 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), and an active-low USB input detection output (USBPWR).
The 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 MAX8804Y/MAX8804Z operate over the extended temperature range (-40°C to +85°C) and are available in a tiny 8-pin thermally enhanced...


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