Rainbow Electronics MAX8804Z - Manual (Page 3)

MAX8804Y/MAX8804Z
High-Voltage, Dual-Input, USB/AC
Adapter Chargers in 2mm x 3mm TDFN
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PARAMETER CONDITIONS MIN TYP MAX UNITS
Default 90 95 100
1st interface pulse 360 380 400 USB Charging Current
V DC = 0V,
V BAT = 3.6V, rising
edge detection on SET
2nd interface pulse 450 475 500
mA
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 DC = V USB = 0V, V BAT = 4.2V 2 µA
SET
V SET rising 1.6
Logic Input Thresholds
V SET falling 0.4
V
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 DC = 5V, measured from V SET low to high 1.5 2 2.5 ms
SET USB Mode Shutdown Delay V DC = 0V, V USB = 5V, measured from V SET high to low 1.5 2 2.5 ms
SET Internal Pulldown Resistor 2 4 M Ω
POK, CHG, USBPWR
Logic Output-Voltage Low I POK = I CHG = I USBPWR = 5mA 60 500 mV
T A = +25°C 0.001 1
Logic Output-Current High
V POK = V CHG =
V USBPWR = 5.5V,
V DC = V USB = 0V T A = +85°C 0.01
µA
CHG
V DC = 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
I BAT falling, battery is
charged, rising edge
on SET
V DC = 5V,
V USB = 0V
3rd, 7th, 11th, 15th,
19th, 23rd, 27th
interface pulse
52.7 70 87.5
mA
ELECTRICAL CHARACTERISTICS (continued)
((V DC = 5V, V SET = 0V) or (V USB = 5V, V SET = 5V), V BAT = unconnected, T A = -40°C to +85°C, unless otherwise noted.) (Note 1)