MAX8934AETI Ver la hoja de datos (PDF) - Maxim Integrated
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componentes Descripción
Fabricante
MAX8934AETI
Maxim Integrated
MAX8934AETI Datasheet PDF : 31 Pages
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Dual-Input Linear Chargers, Smart Power Selector
with Advanced Battery Temperature Monitoring
Typical Operating Characteristics (continued)
(MAX8934A, TA = +25NC, circuit of Figure 2, VDC = 6V, VBATT = 3.6V, thermistor Beta = 3964, unless otherwise noted. Negative bat-
tery current indicates charging.)
1.0100
1.0075
NORMALIZED CHARGE CURRENT
vs. AMBIENT TEMPERATURE
(LOW IC POWER DISSIPATION)
VUSB = 5V, VBATT = 4V
1.0050
1.0025
1.0000
0.9975
0.9950
0.9925
0.9900
-40 -15
10
35
60
85
AMBIENT TEMPERATURE (°C)
BATTERY REGULATION VOLTAGE
vs. TEMPERATURE
4.220
4.215
4.210
4.205
4.200
4.195
4.190
4.185
4.180
4.175
4.170
-40 -15 10
35
60
85
BATTERY VOLTAGE (V)
SYS OUTPUT VOLTAGE
vs. USB VOLTAGE
5.4
5.2
VBATT = 4.0V
NO SYS LOAD
5.0
SYS OUTPUT VOLTAGE
vs. DC VOLTAGE
5.4
5.2
VBATT = 4.0V
NO SYS LOAD
5.0
4.8
MAX8934A
4.8
MAX8934A
4.6
MAX8934B–
MAX8934E
4.4
4.6
MAX8934B–
MAX8934E
4.4
4.2
4.2
4.0
012345678
USB VOLTAGE (V)
SYS OUTPUT VOLTAGE vs. SYS OUTPUT
CURRENT (USB AND DC DISCONNECTED)
4.5
4.4
VBATT = 4.0V
4.3
THE SLOPE OF THIS LINE
SHOWS THAT THE BATT-TO-SYS
4.2
RESISTANCE IS 40mI.
4.1
4.0
3.9
3.8
3.7
3.6
0
0.5
1.0
1.5
2.0
SYS OUTPUT CURRENT (A)
4.0
0 2 4 6 8 10 12 14
DC VOLTAGE (V)
SYS OUTPUT VOLTAGE
vs. SYS OUTPUT CURRENT (DC)
5.5
5.1
VDC = 6V
4.7
VDC = 5V
MAX8934A
VDC = 6V
4.3
MAX8934B–
MAX8934E
3.9 VBATT = 4V, VDC = 5V
PEN1 = 1, PEN2 = X
CEN = 1
3.5
0 0.5 1.0 1.5 2.0 2.5 3.0
SYS OUTPUT CURRENT (A)
_______________________________________________________________________________________ 9
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