SO (derate 5.9mW/°C above +70°C) .........................471mW
Operating Temperature Range .......................... -40°C to +85°C
Storage Temperature Range ............................ -65°C to +160°C
Lead Temperature (soldering, 10s) ................................. +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
(V
CC
= +5V, T
A
= -40°C to +85°C, unless otherwise noted. Typical values are at T
A
= +25°C.) (Note 1)
PARAMETER
Supply Voltage Range
Supply Current
SYMBOL
V
CC
I
CC
CONDITIONS
T
A
= 0°C to +70°C
T
A
= -40°C to +85°C
V
CC
= +3.6V, no load
V
CC
= +5.5V, no load
MAX680_ _ _46
Reset Threshold
MIN
1.0
1.2
TYP
MAX
5.5
5.5
UNITS
V
µA
35
50
4.508
3.136
2.548
2.254
4.60
3.20
2.60
2.30
0.02
V
TH-
MAX680_ _ _32
MAX680_ _ _26
MAX680_ _ _23
60
80
4.692
3.264
2.652
2.346
0.03
V
TH-
0.3
0.4
V
TH-
TA = +25°C
V
CC
falling
V
Reset Threshold Hysteresis
V
HYST
V
OL
V
OH
I
OH
V
OH
V
OL
TA = +25°C, Figure 2
I
SINK
= 20µA, V
CC
= 1.0V
I
SINK
= 1.0mA, V
CC
= 2.0V
I
SOURCE
= 2.0mA, V
CC
= 5.0V
(MAX6806 only)
V
CC
= 5.5V, RESET deasserted
(MAX6808 only)
I
SOURCE
= 20µA, V
CC
= 1.2V
I
SOURCE
= 400µA, V
CC
= 2.0V
I
SINK
= 3.2mA, V
CC
= 5.0V
V
CC
falling at 1mV/µs
0.8 V
CC
0.8 V
CC
0.8 V
CC
V
RESET Output Voltage
(MAX6806/MAX6808)
V
RESET Output Leakage Current
RESET Output Voltage
(MAX6807)
V
CC
to Reset Delay (Note 2)
Reset Threshold Tempco
MR Pulldown Resistance
MR Input Threshold
1
µA
V
0.4
30
30
µs
ppm/°C
120
0.6
kW
V
R
MR
V
IL
V
IH
V
CC
> VTH+
40
0.7 V
CC
80
Note1: All devices are 100% production tested at T
A
= +25°C, and are guaranteed by design for T
A
= T
MIN
to T
MAX
, as specified.
Note 2:
RESET
output for MAX6806/MAX6808, RESET output for MAX6807.
www.maximintegrated.com
Maxim Integrated │ 2
MAX6806/MAX6807/
MAX6808
Typical Operating Characteristics
(T
A
= +25°C, unless otherwise noted.)
Voltage Detectors
45
SUPPLY CURRENT (µA)
40
35
30
25
20
15
10
5
0
-60
-30
0
30
60
V
CC
= 5.0V
43
41
RESET DELAY (µs)
39
37
35
33
31
29
27
25
V
OD
= V
TH-
- V
CC
= 100mV
V
CC
FALLING AT 1mV/µS
V
CC
= 3.3V
V
CC
= 1.8V
V
CC
= 1.0V
90
120
-60 -45 -30 -15 0 15 30 45 60 75 90 105 120135
TEMPERATURE (°C)
TEMPERATURE (°C)
NORMALIZED RESET THRESHOLD
11
10
DELAY TIME (µs)
9
8
7
6
5
4
-60
V
OD
= 200mV
-30
0
30
V
OD
= V
CC
- V
TH
+
MAX6806/7/8-03
1.0080
1.0060
1.0040
1.0020
1.0000
0.9980
0.9960
0.9940
0.9920
0.9900
V
CC
RISING (V
TH+
)
V
OD
= 50mV
V
OD
= 100mV
V
CC
FALLING (V
TH-
)
60
90
120
-40 -30 -15
0
15
30
45
60
75
85
TEMPERATURE (°C)
TEMPERATURE (°C)
Pin Description
PIN
SOT23/SC70
1
SOT143
1
µMAX/SO
1
RESET
2
3
—
—
4
3
2
—
4
2
—
3,5–8
GND
VCC
MR
N.C.
NAME
RESET
FUNCTION
Active-Low Reset Output (MAX6806/MAX6808).
RESET
remains low
while V
CC
is below the reset-threshold voltage or while MR is held high.
Active-High Reset Output (MAX6807). RESET remains high while V
CC
is below the reset-threshold voltage or while MR is held high.
Ground
Supply Voltage Input
Active-High Manual Reset Input. Internal 80kW resistor to GND.
Not Internally Connected
www.maximintegrated.com
Maxim Integrated │ 3
MAX6806/7/8-04
12
POWER-UP RESET DELAY
vs. TEMPERATURE
1.0100
NORMALIZED RESET THRESHOLD
vs. TEMPERATURE
MAX6806/7/8toc02
MAX6806/7/8-01
50
SUPPLY CURRENT
vs. TEMPERATURE
45
POWER-DOWN RESET DELAY
vs. TEMPERATURE
MAX6806/MAX6807/
MAX6808
Detailed Description
Reset Output
The MAX6806 voltage detector features an active-low,
DSP 与 ARM 处理器
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