MAX6670 Maxim Integrated Products, MAX6670 Datasheet - Page 3

• Manufacturer Part Number: MAX6670
• Description: (MAX6668 / MAX6670) Remote Temperature Switches
• Manufacturer: Maxim Integrated Products

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ELECTRICAL CHARACTERISTICS (continued)
(V
(T
Note 1: T
FORCEON Input Low Voltage
FORCEON Input Bias Current
WARN, OT Output Voltage Low
WARN, OT Output High Leakage
Current
DD
Remote Temperature Switches with Integrated
A
0.7
0.6
0.5
0.4
0.3
0.2
0.1
= +25°C, unless otherwise noted.)
0
= +3V to +3.6V, T
0
T
A
RJ
= +25 C
PARAMETER
50
is the temperature of the remote P-N junction.
vs. FANOUT VOLTAGE
140
120
100
80
60
40
20
FANOUT CURRENT
0
100
3.0
I
V
FORCEON = V
FANOUT
DD
_______________________________________________________________________________________
= +3.3V
150
A
= -40°C to +125°C, unless otherwise noted. Typical values are at V
(mA)
vs. SUPPLY VOLTAGE
SUPPLY CURRENT
200
DD
V
250
DD
3.3
(V)
SYMBOL
300
V
I
V
OH
OL
IL
2.0
1.8
1.6
1.4
1.2
1.0
0.8
0.6
0.4
0.2
V
I
V
0
SINK
3.6
FORCEON
WARN
2.0
I
FANOUT
= 6mA
or V
T
= 250mA
A
T
vs. SUPPLY VOLTAGE
= +105 C
A
FANOUT VOLTAGE
= +25 C
= V
2.5
OT
DD
= +5.5V
CONDITIONS
V
DD
or GND
(V)
3.0
Typical Operating Characteristics
T
A
= +65 C
Fan Controller/Driver
3.5
30
25
20
15
10
5
0
-1.00
MAX6670AUB040
119 SAMPLES
TEMPERATURE THRESHOLD ERROR
-0.75
-0.50
DD
THRESHOLD ERROR ( C)
140
120
100
80
60
40
20
0
-0.25
= +3.3V and T
0
V
MIN
DD
0 0.25
= +3.3V, I
25
vs. TEMPERATURE
SUPPLY CURRENT
0.50
TEMPERATURE ( C)
FANOUT
TYP
A
0.75
= +25°C.)
= 250mA
50
1.00
MAX
0.2 x
V
0.5
DD
1
1
75
UNITS
µA
µA
100
V
V
3