Typical operating characteristics, Electrical characteristics (continued) – Rainbow Electronics MAX8804Z User Manual
Page 4
MAX8804Y/MAX8804Z
High-Voltage, Dual-Input, USB/AC
Adapter Chargers in 2mm x 3mm TDFN
4
_______________________________________________________________________________________
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)
PARAMETER
CONDITIONS
MIN
TYP
MAX
UNITS
DC mode
57
CHG Hysteresis
I
BAT
rising after top-off
is detected (Note 4)
USB mode
51
mA
CHG Detection Delay
I
BAT
falls below top-off threshold
3
4
5
ms
THERMAL LOOP
Thermal-Regulation Set Point
Junction temperature when the charge current is reduced,
T
J
rising
+105
°C
DC charging
-40
Thermal-Regulation Gain
Reduction of I
BAT
for
increase of T
J
USB charging
-24
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 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.
SUPPLY CURRENT vs. INPUT VOLTAGE
(DC CHARGING MODE)
INPUT VOLTAGE (V)
SUPPLY CURRENT (mA)
MAX8804Y/Z toc01
0
3
6
9
12 15 18 21 24 27 30
0
0.2
0.4
0.6
0.8
1.0
SUPPLY CURRENT vs. INPUT VOLTAGE
(USB CHARGING MODE)
INPUT VOLTAGE (V)
SUPPLY CURRENT (mA)
MAX8804Y/Z toc02
0
2
4
6
8
10
12
14
16
0
0.2
0.4
0.6
0.8
1.0
DISABLED-MODE SUPPLY CURRENT
vs. INPUT VOLTAGE (DC CHARGING MODE)
INPUT VOLTAGE (V)
SUPPLY CURRENT (mA)
MAX8804Y/Z toc03
0
5
10
15
20
25
30
0
0.2
0.4
0.6
0.8
Typical Operating Characteristics
(V
BAT
= 3.6V; DC charge mode: V
DC
= 5V, V
USB
= 0V, V
SET
= 0V or unconnected; USB charge mode: V
USB
= 5V, V
DC
= 0V, V
SET
=
5V; T
A
= +25°C, unless otherwise noted.)