MAX8804W Datasheet, PDF (4/17 Pages) Maxim Integrated Products – High-Voltage, Dual-Input, USB/AC Adapter Chargers in 2mm x 3mm TDFN

High-Voltage, Dual-Input, USB/AC
Adapter Chargers in 2mm x 3mm TDFN
ELECTRICAL CHARACTERISTICS (continued)
((V_DC = 5V, V_SET = 0V) or (V_USB = 5V, V_SET = 5V), V_BAT = unconnected, V_DETBAT = 0V (MAX8804W), T_A = -40°C to +85°C, unless
otherwise noted.) (Note 1)
PARAMETER
CONDITIONS
POK, CHG, USBPWR (USBPWR only for MAX8804Y/MAX8804Z)
Logic Output-Voltage Low
I_POK = I_CHG = I_USBPWR = 5mA
Logic Output-Current High
V_POK = V_CHG =
V _USBPWR = 5.5V,
V_DC = V_USB = 0V
T_A = +25°C
T_A = +85°C
DETBAT (MAX8804W only)
Logic Input Theshold
Rising
Falling
Pullup Resistor
CHG
MIN TYP MAX UNITS
60
500
mV
0.001
1
µA
0.01
1.6
V
0.4
63
kΩ
V_DC = 0V, V_USB = 5V
60
80
100
Default, 4th, 8th,
12th, 16th, 20th,
24th, 28th interface
60
pulse
80
100
CHG Top-Off Threshold
I_BAT falling, battery is
charged, rising edge
on SET
V_DC = 5V,
V_USB = 0V
1st, 5th, 9th, 13th,
17th, 21st, 25th
interface pulse
67.5
90 112.5
mA
2nd, 6th, 10th,
14th, 18th, 22nd,
75
100 125
26th interface pulse
3rd, 7th, 11th, 15th,
19th, 23rd, 27th
52.7
70
87.5
interface pulse
CHG Hysteresis
CHG Detection Delay
THERMAL LOOP
I_BAT rising after top-off ^{DC mode}
is detected (Note 4) _{USB mode}
I_BAT falls below top-off threshold
57
mA
51
3
4
5
ms
Thermal-Regulation Set Point
Thermal-Regulation Gain
Junction temperature when the charge current is reduced,
T_J rising
Reduction of I_BAT for
increase of T_J
DC charging
USB charging
+105
-40
-24
°C
mA/°C
Note 1: Devices are 100% production tested at T_A = +25°C. Limits over the operating temperature range are guaranteed by design
and characterization.
Note 2: V_IN refers to the input for the IC. For the MAX8804W/MAX8804Y/MAX8804Z, V_IN is V_DC with V_USB = 0V or V_USB with V_DC =
0V.
Note 3: Guaranteed by undervoltage and overvoltage threshold testing. For charge completion, the input voltage must be greater
than 4.28V.
Note 4: This hysteresis is for all charge current except 95mA. In the case of 95mA charge current, voltage-mode to current-mode
detection gives indication of charge mode.
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