Datasheet

4 Maxim Integrated
Dual-Input Linear Chargers, Smart Power Selector
with Advanced Battery Temperature Monitoring
MAX8934A–MAX8934E
ELECTRICAL CHARACTERISTICS (continued)
(V
DC
= V
PEN1
= V
PEN2
= 5V, CEN = USUS = THMEN = GND, V
BATT
= 4V, V
THM
= 1.65V, USB, THMSW, CHG, DONE, OT, DOK,
UOK, FLT are unconnected, C
CT
= 0.068FF, T
A
= -40NC to +85NC, unless otherwise noted. Typical values are at T
A
= +25NC.) (Note 1)
PARAMETER CONDITIONS MIN TYP MAX UNITS
BATTERY CHARGER
BATT-to-SYS On-Resistance V
DC
= 0V, V
BATT
= 4.2V, I
SYS
= 1A 0.04 0.08
I
BATT-to-SYS Reverse
Regulation Voltage
V
PEN1
= V
PEN2
= 0V, I
SYS
= 200mA 50 75 105 mV
BATT Regulation Voltage—Safety
Region 1 (MAX8934A)
I
BATT
= 0mA
T
A
= +25NC, V
THM_T1
< V
THM
<
V
THM_T3
4.175 4.2 4.225
V
T
A
= 0NC to +85NC, V
THM_T1
<
V
THM
< V
THM_T3
4.158 4.2 4.242
T
A
= +25NC, V
THM_T3
< V
THM
<
V
THM_T4
4.05 4.075 4.1
T
A
= 0NC to +85NC, V
THM_T3
<
V
THM
< V
THM_T4
4.034 4.075 4.1
BATT Regulation Voltage—Safety
Region 2
I
BATT
= 0mA
T
A
= +25NC, V
THM_T2
< V
THM
<
V
THM_T3
4.175 4.2 4.225
V
T
A
= 0NC to +85NC, V
THM_T2
<
V
THM
< V
THM_T3
4.158 4.2 4.242
T
A
= +25NC, V
THM_T1
< V
THM
<
V
THM_T2
or V
THM_T3
< V
THM
<
V
THM_T4
4.05 4.075 4.1
T
A
= 0NC to +85NC, V
THM_T1
<
V
THM
< V
THM_T2
or V
THM_T3
<
V
THM
< V
THM_T4
4.034 4.075 4.1
BATT Recharge Threshold—
Safety Region 1 (MAX8934A)
Change in V
BATT
from DONE to fast-
charge restart
V
THM_T1
< V
THM
< V
THM_T3
-145 -104 -65
mV
V
THM_T3
< V
THM
< V
THM_T4
-120 -80 -40
BATT Recharge Threshold—
Safety Region 2
Change in V
BATT
from DONE to fast-
charge restart
V
THM_T2
< V
THM
< V
THM_T3
-145 -104 -65
mV
V
THM_T1
< V
THM
< V
THM_T2
or
V
THM_T3
< V
THM
< V
THM_T4
-120 -80 -40
BATT Fast-Charge
Current Range
R
ISET
= 10kI to 2kI 0.3 1.5 A