MAX8934G View Datasheet(PDF) - Maxim Integrated
Part Name
Description
Manufacturer
MAX8934G
Maxim Integrated
MAX8934G Datasheet PDF : 29 Pages
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Dual-Input Linear Charger, Smart Power Selector
with Advanced Battery Temperature Monitoring
Typical Operating Characteristics (continued)
(TA = +25NC, circuit of Figure 2, VDC = 6V, VBATT = 3.6V, thermistor Beta = 3964, unless otherwise noted. Negative battery current
indicates charging.)
VBATT
LDO STARTUP WAVEFORMS
MAX8934G toc27
ILDO = 0
3.6V
2V/div
3.3V
2V/div
VLDO
LDO OUTPUT VOLTAGE vs.
BATTERY VOLTAGE
3.5
3.0
2.5
VBATT FALLING
2.0
VBATT RISING
1.5
1.0
IBATT
50mA/div
0.5
400Fs/div
0
0 0.5 1.0 1.5 2.0 2.5 3.0 3.5 4.0
BATTERY VOLTAGE (V)
ALWAYS-ON LDO POWER-SUPPLY
REJECTION RATIO vs. FREQUENCY
0
-5 VSYS = 3.6V
-10
ILDO = 10mA
RESISTIVE LOAD
-15
-20
-25
-30
-35
-40
-45
-50
0.1
1
10
100
FREQUENCY (kHz)
900
800
700
600
500
400
300
200
100
0
0.01
LDO NOISE DENSITY
vs. FREQUENCY
VBATT = 3.8V,
ILDO = 10mA
RESISTIVE LOAD
0.1 1 10 100 1000 10,000
FREQUENCY (kHz)
VTHM
VBAT
THM NORMAL TO
THM COLD (< T2) TRANSITION
MAX8934G toc31
1V/div
2.2V
4.2V
4.075V
200mV/div
420mA
IBAT
200mA/div
10I RESISTOR FROM BATT TO GND
10ms/div
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