MAX6665ASA70T Maxim Integrated Products, Inc., MAX6665ASA70T Datasheet

no-image

MAX6665ASA70T

Manufacturer Part Number
MAX6665ASA70T
Description
Max6665 Fan Controller/driver With Factory-programmed Temperature Thresholds
Manufacturer
Maxim Integrated Products, Inc.
Datasheet
1.MAX6665ASA70T.pdf (6 pages)
The MAX6665 is a fully integrated thermal switch with
an internal power transistor for driving a cooling fan
rated up to 24V and 250mA. When the MAX6665’s tem-
perature rises above a factory-programmed threshold,
the FANOUT pin becomes active and powers the fan.
The MAX6665 is available with factory-programmed fan
activation threshold temperatures from +40°C to +70°C
in 5°C increments. Accuracy of the fan activation trip
point is ±1°C (typ) and ±3°C (max). The trip point’s hys-
teresis is pin selectable to 1°C, 4°C, or 8°C. Two open-
drain logic outputs indicate overtemperature con-
ditions: WARN is activated when the temperature is
15°C above the fan activation threshold, and OT is acti-
vated when the temperature is 30°C above the thresh-
old. These features can be used to safely power down
systems that are overheated.
The MAX6665 operates from a +2.7V to +5.5V power
supply, and the associated fan can be powered from
4.5V to 24V. It is available in an 8-pin SO package and
operates from -40°C to +125°C.
19-2056; Rev 0; 5/01
For pricing, delivery, and ordering information, please contact Maxim/Dallas Direct! at
1-888-629-4642, or visit Maxim’s website at www.maxim-ic.com.
+3.3V
Notebook and Desktop Computers
Servers
PC Power Supplies
Laboratory Instruments
Card Racks
1µF
Typical Operating Circuit
HYST
FORCEON
V
________________________________________________________________ Maxim Integrated Products
DD
MAX6665
General Description
Programmed Temperature Thresholds
GND
FANOUT
FANON
WARN
Fan Controller/Driver with Factory-
OT
100mA TO 250mA
COOLING FAN
Applications
V
V
100kΩ
100kΩ
DD
DD
+4.5V TO +24V
o On-Chip 250mA Fan Switch
o No External Components Required
o Factory-Programmed Thresholds
o Two Overtemperature Warning Signals
o Pin-Selectable 1°C, 4°C, and 8°C Hysteresis
o Low 65µA Supply Current
*Exposed paddle
MAX6665ASA40
MAX6665ASA45
MAX6665ASA50
MAX6665ASA55
MAX6665ASA60
MAX6665ASA65
MAX6665ASA70
TOP VIEW
PART
FORCEON
FANON
HYST
GND
1
2
4
3
RANGE
-40°C to
-40°C to
-40°C to
-40°C to
-40°C to
-40°C to
-40°C to
+125°C
+125°C
+125°C
+125°C
+125°C
+125°C
+125°C
TEMP.
Ordering Information
MAX6665
SO
Pin Configuration
PIN-
PACKAGE
8 SO-EP*
8 SO-EP*
8 SO-EP*
8 SO-EP*
8 SO-EP*
8 SO-EP*
8 SO-EP*
6
8
7
5
FANOUT
V
WARN
OT
DD
Features
THRESHOLD
40°C
45°C
50°C
55°C
60°C
65°C
70°C
1

Related parts for MAX6665ASA70T

Image
Part Number
Description
Manufacturer
Datasheet
Request R
mxd1210
Part Number:
mxd1210
Description:
Nonvolatile Ram Controller Integrated Products
Manufacturer:
Maxim Integrated Products, Inc.
Datasheet:
MXD1210.pdf (8 pages)
ds2065w
Part Number:
ds2065w
Description:
3.3v Single-piece 8mb Nonvolatile Sram Integrated Products
Manufacturer:
Maxim Integrated Products, Inc.
Datasheet:
DS2065W.pdf (12 pages)
ds1865
Part Number:
ds1865
Description:
Pon Triplexer Control And Monitoring Circuit Integrated Products
Manufacturer:
Maxim Integrated Products, Inc.
Datasheet:
DS1865.pdf (66 pages)
dg300aa
Part Number:
dg300aa
Description:
Ttl Compatible Cmos Analog Switches Integrated Products
Manufacturer:
Maxim Integrated Products, Inc.
Datasheet:
DG300AA.pdf (10 pages)
dg421dy
Part Number:
dg421dy
Description:
Improved Low-power, Cmos Analog Switches With Latches Integrated Products
Manufacturer:
Maxim Integrated Products, Inc.
Datasheet:
DG421DY.pdf (12 pages)
max9789a
Part Number:
max9789a
Description:
Windows Vista-compliant, Stereo Class Ab Speaker Amplifiers And Directdrive Headphone Amplifiers Integrated Products
Manufacturer:
Maxim Integrated Products, Inc.
Datasheet:
MAX9789A.pdf (26 pages)
max5054bata
Part Number:
max5054bata
Description:
4a, 20ns, Dual Mosfet Drivers Integrated Products
Manufacturer:
Maxim Integrated Products, Inc.
Datasheet:
MAX5054BATA.pdf (17 pages)
max2003cse
Part Number:
max2003cse
Description:
Nicd/nimh Battery Fast-charge Controllers Integrated Products
Manufacturer:
Maxim Integrated Products, Inc.
Datasheet:
MAX2003CSE.pdf (20 pages)
max2235eup
Part Number:
max2235eup
Description:
3.6v, 1w Autoramping Power Amplifier For 900mhz Applications Integrated Products
Manufacturer:
Maxim Integrated Products, Inc.
Datasheet:
MAX2235EUP.pdf (8 pages)
max2264eue
Part Number:
max2264eue
Description:
2.7v, Single-supply, Cellular-band Linear Power Amplifiers Integrated Products
Manufacturer:
Maxim Integrated Products, Inc.
Datasheet:
MAX2264EUE.pdf (16 pages)
max2841ebc-t
Part Number:
max2841ebc-t
Description:
5ghz Linear Power Amplifiers Integrated Products
Manufacturer:
Maxim Integrated Products, Inc.
Datasheet:
MAX2841EBC-T.pdf (9 pages)
MAX3514EVKIT
Part Number:
MAX3514EVKIT
Description:
Evaluation Kits for the MAX3514
Manufacturer:
Maxim Integrated Products, Inc.
max9722beue
Part Number:
max9722beue
Description:
5v, Differential Input, Directdrive, 130mw Stereo Headphone Amplifiers With Shutdown Products
Manufacturer:
Maxim Integrated Products, Inc.
Datasheet:
MAX9722BEUE.pdf (20 pages)
DS32C35
Part Number:
DS32C35
Description:
Accurate I2c Rtc With Integrated Tcxo/crystal/fram
Manufacturer:
Maxim Integrated Products, Inc.
Datasheet:
DS32C35.pdf (22 pages)
ds1863
Part Number:
ds1863
Description:
Ds1863 Burst-mode Pon Controller With Integrated Monitoring
Manufacturer:
Maxim Integrated Products, Inc.
Datasheet:
DS1863.pdf (61 pages)

MAX6665ASA70T Summary of contents

Page 1

Rev 0; 5/01 Fan Controller/Driver with Factory- Programmed Temperature Thresholds General Description The MAX6665 is a fully integrated thermal switch with an internal power transistor for driving a cooling fan rated up to 24V and 250mA. When the MAX6665’s ...

Page 2

Fan Controller/Driver with Factory- Programmed Temperature Thresholds ABSOLUTE MAXIMUM RATINGS V to GND ..............................................................-0.3V to +6V DD FANOUT to GND ....................................................-0.3V to +28V FORCEON, HYST, FANON to GND............-0. WARN GND ...................................................-0.3V to +6V FANOUT Continuous Current............................................400mA ...

Page 3

Fan Controller/Driver with Factory- Programmed Temperature Thresholds (V = +3.3V, unless otherwise noted.) DD FANOUT VOLTAGE vs. CURRENT 900 T = +75°C A 800 700 600 500 400 300 200 100 0 10 FANOUT CURRENT (mA) NO-LOAD SUPPLY CURRENT vs. ...

Page 4

Fan Controller/Driver with Factory- Programmed Temperature Thresholds PIN NAME 1 GND Ground Force Fan On Input. Set FORCEON low to force the fan switch on. Set FORCEON high for normal FORCEON 2 operation. Three-State Hysteresis Input. Connect HYST to V ...

Page 5

Fan Controller/Driver with Factory- Programmed Temperature Thresholds +3.3V 1µF Figure 1. High-Reliability, Fail-Safe Fan Controller and Temperature Monitor increases by a maximum of: 51°C/W x 0.03125W = 1.59°C Therefore, the effective hysteresis is about 1.59°C high- er than the hysteresis ...

Page 6

Fan Controller/Driver with Factory- Programmed Temperature Thresholds Chip Information TRANSISTOR COUNT: 1543 MOS 119 BIPOLAR PROCESS: BiCMOS Maxim cannot assume responsibility for use of any circuitry other than circuitry entirely embodied in a Maxim product. No circuit patent licenses are ...

Related keywords