Datasheet

9Maxim 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.)
BATTERY REGULATION VOLTAGE
vs. TEMPERATURE
MAX8934A toc10
BATTERY VOLTAGE (V)
BATTERY REGULATION VOLTAGE (V)
603510-15
4.175
4.180
4.185
4.190
4.195
4.200
4.205
4.210
4.215
4.220
4.170
-40 85
SYS OUTPUT VOLTAGE
vs. DC VOLTAGE
MAX8934A/B/C toc12
DC VOLTAGE (V)
SYS OUTPUT VOLTAGE (V)
12108642
4.2
4.4
4.6
4.8
5.0
5.2
5.4
4.0
01
4
V
BATT
= 4.0V
NO SYS LOAD
MAX8934A
MAX8934B–
MAX8934E
SYS OUTPUT VOLTAGE
vs. SYS OUTPUT CURRENT (DC)
MAX8934A/B/C toc14
SYS OUTPUT CURRENT (A)
SYS OUTPUT VOLTAGE (V)
2.52.01.51.00.5
3.9
4.3
4.7
5.1
5.5
3.5
0 3.0
V
DC
= 6V
V
BATT
= 4V,
PEN1 = 1, PEN2 = X
CEN = 1
MAX8934A
MAX8934B–
MAX8934E
V
DC
= 6V
V
DC
= 5V
V
DC
= 5V
NORMALIZED CHARGE CURRENT
vs. AMBIENT TEMPERATURE
(LOW IC POWER DISSIPATION)
MAX1960 toc09
AMBIENT TEMPERATURE (°C)
NORMALIZED CHARGE CURRENT
6035-15 10
0.9925
0.9950
0.9975
1.0000
1.0050
1.0025
1.0075
1.0100
0.9900
-40 85
V
USB
= 5V, V
BATT
= 4V
SYS OUTPUT VOLTAGE
vs. USB VOLTAGE
MAX8934A/B/C toc11
USB VOLTAGE (V)
SYS OUTPUT VOLTAGE (V)
7654321
4.2
4.4
4.6
4.8
5.0
5.2
5.4
4.0
08
V
BATT
= 4.0V
NO SYS LOAD
MAX8934A
MAX8934B–
MAX8934E
SYS OUTPUT VOLTAGE vs. SYS OUTPUT
CURRENT (USB AND DC DISCONNECTED)
MAX8934A/B/C toc13
SYS OUTPUT CURRENT (A)
SYS OUTPUT VOLTAGE (V)
1.51.00.5
3.7
3.8
3.9
4.0
4.1
4.2
4.3
4.4
4.5
3.6
0 2.0
V
BATT
= 4.0V
THE SLOPE OF THIS LINE
SHOWS THAT THE BATT-TO-SYS
RESISTANCE IS 40mI.