Rainbow Electronics MAX6781 User Manual
Page 2
MAX6775–MAX6781
Low-Power, 1%-Accurate Battery
Monitor in µDFN and SC70 Packages
2
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ABSOLUTE MAXIMUM RATINGS
ELECTRICAL CHARACTERISTICS
(V
BATT
= 1.6V to 5.5V, T
A
= -40°C to +85°C, unless otherwise specified. Typical values are at T
A
= +25°C.) (Note 1)
Stresses beyond those listed under “Absolute Maximum Ratings” may cause permanent damage to the device. These are stress ratings only, and functional
operation of the device at these or any other conditions beyond those indicated in the operational sections of the specifications is not implied. Exposure to
absolute maximum rating conditions for extended periods may affect device reliability.
BATT to GND............................................................-0.3V to +6V
LBI, LBL, LBH, LBI1, LBI2 to GND ...............-0.3V to minimum of
((V
BATT
+ 0.3V) and +6V)
LBO, LBO1, LBO2 to GND (open-drain) .................-0.3V to +6V
LBO, LBO1, LBO2 to GND (push-pull).........-0.3V to minimum of
((V
BATT
+ 0.3V) and +6V)
Input Current (all pins) ........................................................20mA
Output Current (all pins) .....................................................20mA
Continuous Power Dissipation (T
A
= +70°C)
5-Pin SC70 (derate 3.1mW/°C above +70°C) ..............247mW
6-Pin µDFN (derate 2.1mW°C above +70°C) ..............168mW
Junction Temperature ......................................................+150°C
Storage Temperature Range .............................-65°C to +150°C
Lead Temperature (soldering, 10s) .................................+300°C
PARAMETER
SYMBOL
CONDITIONS
MIN
TYP
MAX
UNITS
T
A
= 0°C to +70°C
1.0
5.5
Operating Voltage Range
(Note 2)
V
BATT
T
A
= -40°C to +85°C
1.2
5.5
V
V
BATT
= 3.7V, no load
4
7
Supply Current
I
Q
V
BATT
= 1.8V, no load
3.2
6
µA
FIXED HYSTERESIS (MAX6775/MAX6776/MAX6779/MAX6780/MAX6781)
0.5% hysteresis version
1.2037
1.2159
1.2280
5% hysteresis version
1.1493
1.1609
1.1725
LBI, LBI_ Falling Threshold
(Note 3)
V
LBIF
10% hysteresis version
1.0888
1.0998
1.1108
V
LBI Rising Threshold
V
LBIR
1.2098
1.222
1.2342
V
LBI Input Leakage Current
0.2V
≤ V
LBI
≤ V
BATT
- 0.2V
-5
+5
nA
ADJUSTABLE HYSTERESIS (MAX6777/MAX6778)
LBL, LBH Threshold
V
BATT
= 1.8V to 5.5V
1.2098
1.222
1.2342
V
LBL, LBH Input Leakage Current
V
BATT
- 0.2V
≥ V
LBL/LBH
≥ 0.2V
-5
+5
nA