MAX795(1996) 查看數據表（PDF） - Maxim Integrated
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MAX795 Datasheet PDF : 20 Pages
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3.0V/3.3V Adjustable Microprocessor
Supervisory Circuits
ABSOLUTE MAXIMUM RATINGS
Terminal Voltage (with respect to GND)
VCC ........................................................................-0.3V to 6.0V
VBATT .....................................................................-0.3V to 6.0V
All Other Inputs ..................-0.3V to the higher of VCC or VBATT
Continuous Input Current
VCC .................................................................................200mA
VBATT ................................................................................50mA
GND ..................................................................................20mA
Output Current
VOUT................................................................................200mA
All Other Outputs ..............................................................20mA
Continuous Power Dissipation (TA = +70°C)
8-Pin Plastic DIP (derate 9.09mW/°C above +70°C) .....727mW
8-Pin SO (derate 5.88mW/°C above +70°C)..................471mW
16-Pin Plastic DIP (derate 10.53mW/°C above +70°C) .842mW
16-Pin Narrow SO (derate 9.52mW/°C above +70°C) ...696mW
Operating Temperature Ranges
MAX793_C_ _/MAX794C_ _/MAX795_C_ _ ......... 0°C to +70°C
MAX793_E_ _/MAX794E_ _/MAX795_E_ _ ........-40°C to +85°C
Storage Temperature Range .............................-65°C to +160°C
Lead Temperature (soldering, 10sec) .............................+300°C
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.
ELECTRICAL CHARACTERISTICS
(VCC = 3.17V to 5.5V for the MAX793T/MAX795T, VCC = 3.02V to 5.5V for the MAX793S/MAX795S, VCC = 2.72V to 5.5V for the
MAX793R/MAX794/MAX795R, VBATT = 3.6V, TA = TMIN to TMAX, unless otherwise noted. Typical values are at TA = +25°C.)
PARAMETER
SYMBOL
CONDITIONS
MIN
Operating Voltage Range,
MAX79_C
1.0
VCC, VBATT (Note 1)
MAX79_E
1.1
VCC Supply Current
(excluding IOUT, ICE OUT)
ISUPPLY
MAX793/MAX794,
MR = VCC
MAX795
VCC < 3.6V
VCC < 5.5V
VCC < 3.6V
VCC < 5.5V
VCC Supply Current in
Battery-Backup Mode
(excluding IOUT)
ISUPPLY
VCC = 2.1V,
VBATT = 2.3V
MAX793/MAX794
MAX795
BATT Supply Current
(excluding IOUT) (Note 2)
TYP
MAX UNITS
5.5
V
5.5
46
60
62
80
µA
35
50
µA
49
70
32
45
µA
24
35
1
µA
BATT Leakage Current,
Freshness Seal Enabled
VCC = 0V, VOUT = 0V
1
µA
Battery Leakage Current
(Note 3)
OUT Output Voltage in
Normal Mode
OUT Output Voltage in
Battery-Backup Mode
Battery Switch Threshold
(VCC falling)
Battery Switch Threshold
(VCC rising) (Note 7)
0.5
µA
IOUT = 75mA
VCC - 0.3
VCC - 0.125
VOUT IOUT = 30mA (Note 4)
VCC - 0.12 VCC - 0.050
V
IOUT = 250µA (Note 4)
VCC - 0.001 VCC - 0.5mV
VOUT VBATT = 2.3V
IOUT = 250µA
IOUT = 1mA
VBATT - 0.1 VBATT - 0.034
VBATT - 0.14
V
VCC -
VBATT
VSW > VCC > 1.75V (Note 5)
20
65
mV
MAX793T/MAX795T 2.69
2.82
2.95
VSW
VBATT > VCC
(Note 6)
MAX793S/MAX795S 2.55
2.68
2.80
V
MAX793R/MAX795R/
MAX794
2.30
2.41
2.52
VCC -
VBATT
This value is identical to the reset threshold,
VCC rising for VBATT > VRST
VBATT < VRST
25
65
mV
2 _______________________________________________________________________________________
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