Datasheet

6
Maxim Integrated
Dual-Input Linear Charger, Smart Power Selector
with Advanced Battery Temperature Monitoring
MAX8934G
Typical Operating Characteristics
(T
A
= +25NC, circuit of Figure 2, V
DC
= 6V, V
BATT
= 3.6V, thermistor Beta = 3964, unless otherwise noted. Negative battery current
indicates charging.)
USB OPERATING SUPPLY CURRENT
vs. USB VOLTAGE (CHARGER ENABLED)
MAX8934G toc01
USB OPERATIN SUPPLY CURRENT (µA)
200
400
600
800
1000
1200
0
USB VOLTAGE (V)
7645231
08
V
BATT
= 4.2V,
V
USUS
= 0V
CHARGER IN
DONE MODE
I
SYS
= 0A
V
USB
RISING
V
USB
FALLING
ENTERING OVLO
USB OPERATING SUPPLY CURRENT
vs. USB VOLTAGE (CHARGER DISABLED)
MAX8934G toc02
USB VOLTAGE (V)
USB OPERATING SUPPLY CURRENT (µA)
764 52 31
100
200
300
400
500
600
700
800
900
0
08
V
BATT
= 4.2V,
V
USUS
= 0V
CEN = 1
I
SYS
= 0A
PEN1 = X, PEN2 = 1
V
USB
RISING
V
USB
FALLING
ENTERING OVLO
USB SUSPEND CURRENT
vs. USB VOLTAGE
MAX8934G toc03
USB VOLTAGE (V)
USB QUIESCENT CURRENT (FA)
7654321
50
100
150
200
250
0
08
V
BATT
= 4.2V,
USUS = 1
BATTERY INPUT CURRENT
vs. BATTERY VOLTAGE
(USB DISCONNECTED)
MAX8934G toc04
BATTERY VOLTAGE (V)
BATTERY INPUT CURRENT (uA)
4321
2
4
6
8
10
12
14
0
05
THMEN = 1
THMEN = 0
CHARGE CURRENT (mA)
50
100
150
200
250
300
350
400
450
500
0
CHARGE CURRENT
vs. BATTERY VOLTAGE (500mA USB)
MAX8934G toc07
BATTERY VOLTAGE (V)
1234
05
V
USB
= 5V
PEN1 = X, PEN2 = 1
V
BATT
RISING
V
BATT
FALLING
CHARGE CURRENT
vs. BATTERY VOLTAGE (1A DC)
MAX8934G toc08
BATTERY VOLTAGE (V)
CHARGE CURRENT (mA)
4321
200
400
600
800
1000
1200
0
05
V
DC
= 5V
PEN1 = 1, PEN2 = X
V
BATT
RISING
V
BATT
FALLING
BATTERY INPUT CURRENT
vs. TEMPERATURE
MAX8934G toc05
TEMPERATURE (°C)
BATTERY INPUT CURRENT (µA)
603510-15
4.1
4.2
4.3
4.4
4.5
4.6
4.7
4.8
4.9
5.0
4.0
-40 85
V
BATT
= 4V, THMEN = 0, I
LDO
= 0
USB AND DC UNCONNECTED
CHARGE CURRENT vs.
BATTERY VOLTAGE (100mA USB)
MAX8934G toc06
BATTERY VOLTAGE (V)
CHARGE CURRENT (mA)
4321
10
20
30
40
50
60
70
80
90
100
0
05
V
USB
= 5V
PEN1 = X, PEN2 = 0
V
BATT
RISING
V
BATT
FALLING