Rainbow-electronics MAX8804Z Manual de usuario descargar pdf (Pagina 3)

MAX8804Y/MAX8804Z

High-Voltage, Dual-Input, USB/AC

Adapter Chargers in 2mm x 3mm TDFN

_______________________________________________________________________________________ 3

PARAMETER CONDITIONS MIN TYP MAX UNITS

Default 90 95 100

1st interface pulse 360 380 400USB Charging Current

= 0V,

BAT

= 3.6V, rising

edge detection on SET

2nd interface pulse 450 475 500

Soft-Start Time Ramping time from 0 to 500mA 250 µs

BAT Prequal Threshold MAX8804Z only, V

BAT

rising, 300mV hysteresis (typ) 2.35 2.50 2.65 V

BAT Prequal Charge Current MAX8804Z only 95 mA

BAT Leakage Current V

= V

USB

= 0V, V

BAT

= 4.2V 2 µA

SET

rising 1.6

Logic Input Thresholds

SET

falling 0.4

Logic-High Time Pulse width required to program DC charge current 1 1000 µs

Logic-Low Time Pulse width required to program USB charge current 1 1000 µs

SET DC Mode Shutdown Delay V

USB

= 0V, V

= 5V, measured from V

SET

low to high 1.5 2 2.5 ms

SET USB Mode Shutdown Delay V

= 0V, V

USB

= 5V, measured from V

SET

high to low 1.5 2 2.5 ms

SET Internal Pulldown Resistor 24MΩ

POK, CHG, USBPWR

Logic Output-Voltage Low I

POK

= I

CHG

= I

USBPWR

= 5mA 60 500 mV

= +25°C 0.001 1

Logic Output-Current High

POK

= V

CHG

USBPWR

= 5.5V,

= V

USB

= 0V

= +85°C 0.01

µA

CHG

= 0V, V

USB

= 5V 60 80 100

Default, 4th, 8th,

12th, 16th, 20th,

24th, 28th interface

pulse

60 80 100

1st, 5th, 9th, 13th,

17th, 21st, 25th

interface pulse

67.5 90 112.5

2nd, 6th, 10th,

14th, 18th, 22nd,

26th interface pulse

75 100 125

CHG Top-Off Threshold

BAT

falling, battery is

charged, rising edge

on SET

= 5V,

USB

= 0V

3rd, 7th, 11th, 15th,

19th, 23rd, 27th

interface pulse

52.7 70 87.5

ELECTRICAL CHARACTERISTICS (continued)

((V

= 5V, V

SET

= 0V) or (V

USB

= 5V, V

SET

= 5V), V

BAT

= unconnected, T

= -40°C to +85°C, unless otherwise noted.) (Note 1)

1 2 3 4 5 6 7 8 ... 14 15

MAX8804Y/MAX8804Z 1

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Rainbow-electronics MAX8804Z Manual de usuario Pagina 3

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