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ADM1029 Datasheet(PDF) 3 Page - Analog Devices

Part No. ADM1029
Description  Dual PWM Fan Controller and Temperature Monitor for High Availability Systems
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Maker  AD [Analog Devices]
Homepage  http://www.analog.com
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ADM1029 Datasheet(HTML) 3 Page - Analog Devices

 
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REV. 0
–3–
ADM1029
Parameter
Min
Typ
Max
Unit
Test Conditions/Comments
SERIAL BUS TIMING
5 (continued)
SCL Low Time, tLOW
1.3
µs
See Figure 1
SCL High Time, tHIGH
450
µs
See Figure 1
SCL, SDA Rise Time, tR
1000
ns
See Figure 1
SCL, SDA Fall Time, tF
300
ns
See Figure 1
Data Setup Time, tSU:DAT
250
ns
See Figure 1
Data Hold Time, tHD:DAT
300
ns
See Figure 1
NOTES
1All voltages are measured with respect to GND, unless otherwise specified.
2Typicals are at T
A = 25
°C and represent most likely parametric norm. Shutdown current typ is measured with V
CC = 3.3 V.
3TUE (Total Unadjusted Error) includes Offset, Gain, and Linearity errors of the ADC, multiplexer.
4The total fan count is based on two pulses per revolution of the fan tachometer output.
5Timing specifications are tested at logic levels of V
IL = 0.8 V for a falling edge and VIH = 2.1 V for a rising edge.
Specifications subject to change without notice.
ABSOLUTE MAXIMUM RATINGS
*
Positive Supply Voltage (VCC) . . . . . . . . . . . . . . . . . . . . . 6.5 V
Voltage on Pins 13–18 . . . . . . . . . . . . –0.3 V to (VCC + 0.3 V)
Voltage on Any Other Input or Output Pin . . . . –0.3 V to +6.5 V
Input Current at Any Pin . . . . . . . . . . . . . . . . . . . . . . .
±5 mA
Package Input Current . . . . . . . . . . . . . . . . . . . . . . .
±20 mA
Maximum Junction Temperature (TJ max) . . . . . . . . . . 150
°C
Storage Temperature Range . . . . . . . . . . . . –65
°C to +150°C
Lead Temperature
Vapor Phase (60 sec) . . . . . . . . . . . . . . . . . . . . . . . . . 215
°C
Infrared (15 sec)
. . . . . . . . . . . . . . . . . . . . . . . . . . . . 200
°C
ESD Rating All Pins . . . . . . . . . . . . . . . . . . . . . . . . . . . 2000 V
*Stresses above those listed under Absolute Maximum Ratings may cause perma-
nent damage to the device. This is a stress rating only; functional operation of the
device at these or any other conditions above those indicated in the operational
section of this specification is not implied. Exposure to absolute maximum rating
conditions for extended periods may affect device reliability.
PIN CONFIGURATION
ADM1029
TOP VIEW
(Not To Scale)
1
2
3
4
5
6
7
8
9
10
11
12
24
23
22
21
20
19
18
17
16
15
14
13
DRIVE1
FAULT1
TACH1
PRESENT1
SCL
SDA
GND
VCC
CFAULT
INT
GPIO2
RESET
DRIVE2
FAULT2
TACH2
PRESENT2
AIN1/GPIO1
AIN0/GPIO0
TMIN/INSTALL
D2+/GPIO6
D2–/GPIO5
ADD
D1+/GPIO4
D2–/GPIO3
THERMAL CHARACTERISTICS
24-Lead QSOP Package:
θ
JA = 105
°C/W, θ
JC = 39
°C/W
ORDERING GUIDE
Temperature
Package
Package
Model
Range
Description
Option
ADM1029ARQ 0
°C to 100°C
Shrink Small Outline RQ-24
Package (QSOP)
P
S
S
P
tHD;STA
tHD;DAT
tHIGH
tSU;DAT
tSU;STA
tSU;STO
tLOW
tR
tF
tHD;STA
SCL
SDA
tBUF
Figure 1. Diagram for Serial Bus Timing


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