ADM1027
ABSOLUTE MAXIMUM RATINGS*
PIN CONFIGURATION
Positive Supply Voltage (VCC) . . . . . . . . . . . . . . . . . . . . . 6.5 V
Voltage on 12 VIN Pin . . . . . . . . . . . . . . . . . . . . . . . . . . . . 20 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
1
2
24 PWM1/XTO
SDA
SCL
GND
23
22
21
20
19
18
17
V
CCP
3
2.5V
12V
IN
4
V
CC
IN
Maximum Junction Temperature (TJ MAX
)
. . . . . . . . . . 150ꢀC
5
5V
VID0
VID1
IN
Storage Temperature Range . . . . . . . . . . . . . –65ꢀC to +150ꢀC
Lead Temperature, Soldering
ADM1027
6
VID4
D1+
D1–
TOP VIEW
(Not to Scale)
7
VID2
Vapor Phase (60 sec) . . . . . . . . . . . . . . . . . . . . . . . . . 215ꢀC
Infrared (15 sec) . . . . . . . . . . . . . . . . . . . . . . . . . . . . 200ꢀC
ESD Rating . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 2000 V
8
VID3
9
16 D2+
TACH3
10
11
15
14
13
D2–
PWM2/SMBALERT
TACH1
*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.
TACH4/ADDRESS SELECT
PWM3/ADDRESS ENABLE
TACH2 12
THERMAL CHARACTERISTICS
24-Lead QSOP Package:
JA = 123ꢀC/W, qJC = 27ꢀC/W
q
tR
tHD; STA
tLOW
tF
SCL
tSU; STA
tHIGH
tSU; STO
tHD; STA
tHD; DAT
tSU; DAT
SDA
tBUF
S
P
P
S
Figure 1. Diagram for Serial Bus Timing
CAUTION
ESD (electrostatic discharge) sensitive device. Electrostatic charges as high as 4000 V readily
accumulate on the human body and test equipment and can discharge without detection. Although the
ADM1027 features proprietary ESD protection circuitry, permanent damage may occur on devices
subjected to high energy electrostatic discharges. Therefore, proper ESD precautions are recommended
to avoid performance degradation or loss of functionality.
WARNING!
ESD SENSITIVE DEVICE
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