Datasheet

MAX6668/MAX6670
Chip Information
TRANSISTOR COUNT: 8113
PROCESS: BiCMOS
Remote Temperature Switches with Integrated
Fan Controller/Driver
6 _______________________________________________________________________________________
GND
DXP
DXN
GND
10MILS
10MILS
10MILS
MINIMUM
10MILS
Figure 2. Recommended DXP/DXN PC Traces
TRIP TEMPERATURE
TRIP TEMPERATURE
– HYSTERESIS
TIME
MAX6668
MAX6670
FANOUT
Figure 1. Temperature Trip Threshold Hysteresis
DXP
GND
PGND
HYST
V
DD
+4.5V TO +12V
MAX6670
FORCEON
FANOUT
WARN
OT
V
DD
V
DD
DXN
V
DD
+3V TO +3.6V
CPU
Typical Operating Circuit
V
DD
GNDDXN
1
2
8
7
FANOUT
GNDFORCEON
DXP
PGND
µMAX
TOP VIEW
3
4
6
5
MAX6668
1
2
3
4
5
10
9
8
7
6
FANOUT
HYST
V
DD
GNDDXN
DXP
PGND
MAX6670
µMAX
OTFORCEON
WARN
Pin Configurations
Ordering Information
PART
TEMP
RANGE
PI N -
PA C K A G E
T H R ESH -
O L D
( ° C )
MAX6670AUB40 -40°C to +125°C 10 µMAX 40
MAX6670AUB45 -40°C to +125°C 10 µMAX 45
MAX6670AUB50 -40°C to +125°C 10 µMAX 50
MAX6670AUB55 -40°C to +125°C 10 µMAX 55
MAX6670AUB60 -40°C to +125°C 10 µMAX 60
MAX6670AUB65 -40°C to +125°C 10 µMAX 65
MAX6670AUB70 -40°C to +125°C 10 µMAX 70
MAX6670AUB75 -40°C to +125°C 10 µMAX 75