Datasheet

11Maxim Integrated
Dual-Input Linear Chargers, Smart Power Selector
with Advanced Battery Temperature Monitoring
MAX8934A–MAX8934E
Typical Operating Characteristics (continued)
(MAX8934A, T
A
= +25NC, circuit of Figure 2, V
DC
= 6V, V
BATT
= 3.6V, thermistor Beta = 3964, unless otherwise noted. Negative bat-
tery current indicates charging.)
DC DISCONNECT WITH NO
USB (R
SYS
= 22I)
MAX8934A/B/C toc21
400Fs/div
3.6V
3.5V
0A
160mA
-820mA
-I
BATT
= CHARGING
1A
5V/div
1A/div
1A/div
5V/div
I
BATT
I
DC
V
SYS
V
BATT
USB DISCONNECT WITH NO
DC (R
SYS
= 22I)
MAX8934A/B/C toc23
200Fs/div
-260mA
3.9V
3.3V
3.3V
0mA
3V
+160mA
3.6V
475mA
5V
500mA/div
5V/div
5V/div
5V/div
500mA/div
5V/div
I
BATT
I
USB
V
USB
V
CHG
V
UOK
V
SYS
USB RESUME (R
SYS
= 22I)
MAX8934A/B/C toc25
200Fs/div
0V
4.6V
4.2V
475mA
3V
0A
0A
3.3V
3.3V
500mA/div
5V/div
5V/div
500mA/div
5V/div
I
BATT
I
USB
V
USUS
V
CHG
V
SYS
BATTERY
CHARGER SOFT-START
V
USB
= 5V
DC CONNECT WITH NO
USB (R
SYS
= 22I)
MAX8934A/B/C toc20
400Fs/div
3.6V
5V
3.5V
0A
160mA
0mA
1.2A
-1A
C
DC
CHARGING
5V/div
1A/div
1A/div
5V/div
I
BATT
I
DC
V
SYS
V
BATT
BATTERY CHARGER
SOFT-START
USB CONNECT WITH NO
DC (R
SYS
= 22I)
MAX8934A/B/C toc22
200Fs/div
5V
5V
C
SYS
CHARGING
C
USB
CHARGING
475mA
4.2V
0A
-260mA
+160mA
3.3V
3.3V
3.6V
500mA/div
5V/div
5V/div
5V/div
500mA/div
5V/div
I
BATT
I
USB
V
USB
V
CHG
V
UOK
V
SYS
BATTERY
CHARGER SOFT-START
USB SUSPEND (R
SYS
= 22I)
MAX8934A/B/C toc24
200Fs/div
3V
V
USB
= 5V
0A
3.2V
3.3V
3.3V
0A
0V
475mA
4.2V
500mA/div
5V/div
5V/div
500mA/div
5V/div
I
BATT
I
USB
V
USUS
V
CHG
V
SYS