MAX6620
Quad Linear Fan-Speed Controller
28
Maxim Integrated
I
2
C INTERFACE,
REGISTERS, AND
CONTROL LOGIC
DAC OUTPUT
DRIVER
TACH MONITOR
0.1µF
V
CC
FAN_FAIL
0.1µF
V
FAN
SDA
SCL
TO I
2
C MASTER
V
CC
DAC_START
ADDR
SPINUP_START
X1
GND
WD_START
X2
(OPTIONAL CRYSTAL)
V
FAN
FAN2
DACOUT2
DACFB2
TACH2
0.1µF
0.1µF
4.7k
4.7k
V
FAN
FAN1
DACOUT1
DACFB1
TACH1
0.1µF
0.1µF
4.7k
4.7k
V
FAN
FAN4
DACOUT4
DACFB4
TACH4
0.1µF
0.1µF
4.7k
4.7k
V
FAN
FAN3
DACOUT3
DACFB3
TACH3
0.1µF
0.1µF
4.7k
4.7k
Typical Application Circuit
MAX6620
Quad Linear Fan-Speed Controller
29
Maxim Integrated
Chip Information
PROCESS: CMOS
Package Information
For the latest package outline information and land patterns (foot-
prints), go to www.maximintegrated.com/packages
. Note that a
“+”, “#”, or “-” in the package code indicates RoHS status only.
Package drawings may show a different suffix character, but the
drawing pertains to the package regardless of RoHS status.
PACKAGE
TYPE
PACKAGE
CODE
OUTLINE NO.
LAND
PATTERN NO.
28 TQFN T2855+8
21-0140
90-0028
Maxim Integrated cannot assume responsibility for use of any circuitry other than circuitry entirely embodied in a Maxim Integrated product. No circuit patent
licenses are implied. Maxim Integrated reserves the right to change the circuitry and specifications without notice at any time. The parametric values (min and
max limits) shown in the Electrical Characteristics table are guaranteed. Other parametric values quoted in this data sheet are provided for guidance.
30
________________________________Maxim Integrated 160 Rio Robles, San Jose, CA 95134 USA 1-408-601-1000
© 2013 Maxim Integrated Products, Inc. Maxim Integrated and the Maxim Integrated logo are trademarks of Maxim Integrated Products, Inc.
MAX6620
Quad Linear Fan-Speed Controller
REVISION
NUMBER
REVISION
DATE
DESCRIPTION
PAGES
CHANGED
0 3/08 Initial release
1 1/13
Corrected Fan_ Dynamics register typos and hex values; added soldering
temp; updated package info
12, 18, 20, 21, 24, 29
Revision History

MAX6620ATI+

Mfr. #:
Manufacturer:
Maxim Integrated
Description:
Motor / Motion / Ignition Controllers & Drivers Quad Linear Fan Speed Controlle
Lifecycle:
New from this manufacturer.
Delivery:
DHL FedEx Ups TNT EMS
Payment:
T/T Paypal Visa MoneyGram Western Union

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