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MAX6439 Datasheet(PDF) 6 Page - Maxim Integrated Products

Part No. MAX6439
Description  Low-Power, Single-/Dual-Level Battery Monitors with Hysteresis and Integrated uP Reset
Download  14 Pages
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Maker  MAXIM [Maxim Integrated Products]
Homepage  http://www.maxim-ic.com
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MAX6439 Datasheet(HTML) 6 Page - Maxim Integrated Products

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Low-Power, Single-/Dual-Level Battery Monitors
with Hysteresis and Integrated µP Reset
6
_______________________________________________________________________________________
Typical Operating Characteristics (continued)
(VBATT = 1.2V to 5.5V, VCC = 1.2V to 5.5V, unless otherwise specified. Typical values are at TA = +25°C.)
120
110
100
90
80
70
60
10
100
1000
MAXIMUM VBATT TRANSIENT DURATION
vs. LTH THRESHOLD OVERDRIVE
LTH THRESHOLD OVERDRIVE (mV)
LBO ASSERTS ABOVE
THIS LINE
60
55
50
45
40
35
30
25
20
10
100
1000
MAXIMUM VCC TRANSIENT DURATION
vs. VTH THRESHOLD OVERDRIVE
VTH THRESHOLD OVERDRIVE (mV)
RESET ASSERTS ABOVE
THIS LINE
NORMALIZED UPPER (HTH) AND LOWER
(LTH) TRIP VOLTAGES vs. TEMPERATURE
TEMPERATURE (
°C)
60
40
20
0
-20
0.975
1.000
1.025
1.050
0.950
-40
80
LOWER TRIP VOLTAGE
UPPER TRIP VOLTAGE
NORMALIZED RESET THRESHOLD
vs. TEMPERATURE
TEMPERATURE (
°C)
60
40
20
0
-20
0.975
1.000
1.025
1.050
0.950
-40
80
LBO OUTPUT vs. SINK CURRENT
VCC = 3.3V, VBATT = 2.1V
ISINK (mA)
8
6
4
2
20
40
60
80
100
120
0
010
LBO ASSERTED
RESET OUTPUT vs. SINK CURRENT
VCC = 2.1V, VBATT = 3.6V
ISINK (mA)
8
6
4
2
20
40
60
80
100
120
140
0
010
RESET ASSERTED
RESET OUTPUT vs. SOURCE CURRENT
VCC = 3.3V, VBATT = 3.6V
ISOURCE (mA)
3.0
2.5
2.0
1.5
1.0
0.5
2.75
3.00
3.25
3.50
2.50
0
3.5


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