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MAX8804VETA Datasheet(PDF) 7 Page - Maxim Integrated Products |
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MAX8804VETA Datasheet(HTML) 7 Page - Maxim Integrated Products |
7 / 16 page High-Voltage, Dual-Input, USB/AC Adapter Chargers in 2mm x 3mm TDFN _______________________________________________________________________________________ 7 Pin Description PIN MAX8804V/ MAX8804W MAX8804Y/ MAX8804Z NAME FUNCTION 1 1 BAT Battery Connection. The IC delivers charging current and monitors battery voltage using BAT. Bypass BAT to GND with a 2.2µF or larger ceramic capacitor. BAT is high impedance when the IC is disabled. 2 — DETBAT Battery Pack Detection Input. Drive DETBAT low or connect it to GND to allow SET to control the charger. Leave DETBAT unconnected to disable any charge mode. —2 USBPWR USB Input Detection Output. USBPWR is internally pulled low if a valid voltage is present at USB, otherwise it is high impedance. USBPWR circuitry is active regardless of SET and charger on/off status. 33 POK Power-OK Monitor. POK is an open-drain output that is internally pulled low when a valid charging source is detected at either DC or USB. POK is high impedance when both input voltages are less than VUVLO or VBAT. 44 DC DC Input Supply. Connect DC to a 4.15V to 7V charging source. Bypass DC to GND with a 1µF or larger ceramic capacitor. DC takes priority over USB when both are valid. 5 5 USB USB Input Source. Connect USB to a USB port. Bypass USB to GND with a 1µF or larger ceramic capacitor. 66 CHG Charging-Status Output. CHG is internally pulled low when the battery is being charged. CHG is high impedance when the charger is in top-off mode or disabled. 7 7 SET Enable/Disable, Charging Current, and Top-Off Threshold Set Input. Drive SET low to enable DC charge mode and drive high to enable USB charge mode. If both DC and USB inputs are present, SET is used for the DC charge mode only and USB charge is disabled. SET is also used for programming the charge current and top-off threshold. See the DC/USB Mode and Charging Current Setting section for details. 8 8 GND Ground — — EP Exposed Paddle. Connect to the GND plane for optimum thermal dissipation. |
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