MAX8934A データシートの表示（PDF） - Maxim Integrated
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MAX8934A
Maxim Integrated
MAX8934A 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.)
5.5
5.3
5.1
4.9
4.7
4.5
4.3
4.1
3.9
3.7
3.5
0
SYS OUTPUT VOLTAGE vs.
SYS OUTPUT CURRENT (USB)
VBATT = 4.0V,
VUSB = 5.0V
CEN = 1
0.5A, MAX8934A,
PEN1 = 0, PEN2 = 1
0.1A, MAX8934A, PEN1 = 0, PEN2 = 0
0.5 1.0 1.5 2.0 2.5 3.0
SYS OUTPUT CURRENT (A)
SYS OUTPUT VOLTAGE vs.
SYS OUTPUT CURRENT (USB)
5.5
5.3 VBATT = 4.0V,
5.1
VUSB = 5.0V
CEN = 1
4.9
0.14A, MAX8934B/MAX8934C/
4.7
MAX8934D PEN1 = 0, PEN2 = 0
4.5
0.5A, MAX8934B/MAX8934C/
MAX8934D PEN1 = 0, PEN2 = 0
4.3
4.1
1.5A, MAX8934D
PEN1 = 1, PEN2 = 1
3.9
3.7
3.5
0
0.5 1.0 1.5 2.0 2.5 3.0
SYS OUTPUT CURRENT (A)
3.5
3.0
2.5
2.0
1.5
1.0
0.5
0
0
VL OUTPUT VOLTAGE vs.
DC VOLTAGE
IVL = 5mA
IVL = 0mA
2 4 6 8 10 12 14
DC VOLTAGE (V)
CHARGE PROFILE—820mAh BATTERY
ADAPTER INPUT—1A CHARGE
1.2
4.5
1.0
4.0
VBATT
0.8
3.5
CHARGE PROFILE—820mAh BATTERY
USB INPUT—500mA CHARGE
500
4.5 MAX8934A toc17
450
400
4.0
350
300
VBATT
IBATT
3.5
250
200
3.0
150
100
2.5
50
0
2.0
0 20 40 60 80 100 120 140
TIME (min)
DC CONNECT WITH USB
CONNECTED (RSYS = 22I)
MAX8934A/B/C toc19
4.2V
5.3V
VSYS
CDC CHARGING CSYS CHARGING
IDC 0A
1.24A
5V/div
1A/div
0.6
3.0
IBATT
0.4
2.5
0.2
2.0
0
1.5
0 10 20 30 40 50 60 70 80
TIME (min)
IUSB 475mA
BATTERY CHARGER SOFT-START
-190mA 0A
IBATT
-1A
400Fs/div
500mA/div
1A/div
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