ADT7460ARQZ ON Semiconductor, ADT7460ARQZ Datasheet - Page 42
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ADT7460ARQZ
Manufacturer Part Number
ADT7460ARQZ
Description
IC REMOTE THRML/FAN CTRLR 16QSOP
Manufacturer
ON Semiconductor
Series
dBCool®r
Specifications of ADT7460ARQZ
Function
Fan Control, Temp Monitor
Topology
ADC, Comparator, Multiplexer, Register Bank
Sensor Type
External & Internal
Sensing Temperature
-40°C ~ 120°C, External Sensor
Output Type
SMBus™
Output Alarm
No
Output Fan
Yes
Voltage - Supply
3 V ~ 5.5 V
Operating Temperature
-40°C ~ 120°C
Mounting Type
Surface Mount
Package / Case
16-QSOP
Full Temp Accuracy
+/- 3 C
Digital Output - Bus Interface
Serial (3-Wire)
Maximum Operating Temperature
+ 120 C
Minimum Operating Temperature
- 40 C
Lead Free Status / RoHS Status
Lead free / RoHS Compliant
Available stocks
Company
Part Number
Manufacturer
Quantity
Price
Part Number:
ADT7460ARQZ
Manufacturer:
ADI/亚德诺
Quantity:
20 000
Company:
Part Number:
ADT7460ARQZ-REEL
Manufacturer:
ST
Quantity:
16
ADT7460
Table 57. TEMP T
Reg
0x5F
0x60
0x61
These re isters b
ef
Table 58. TEM T
Bit
<2:0>
<3>
<7:4>
fect.
iste
r Addre s
g
Name
FREQ
THRM
RANG
P
s
ecom
E
RANGE
RANGE
R/W
Read/Writ
Read/Write
Read/Writ
es read-o
/PWM Frequency Registers (Power-On Default 0xC4)
/PWM
e
e
nly w en he C
Freq enc Re
u
h
R/W
Read/Write
Read/Write
Read/Write
Description
T ese
000
001
010
011
100
110
111
THRM = 1 causes the THERM pin (Pin 9) to assert low as an output when this temperature channel’s
THERM limit is exceeded by 0.25°C. The THERM pin remains asserted until the temperature is equal
to or below the THERM limit. The minimum time that THERM asserts for is one monitoring cycle.
This allows clock modulation of devices that incorporate this feature.
THRM = 0 makes the THERM pin act as an input only, for example, for Pentium 4 PROCHOT
monitoring, when Pin 9 is configured as
These bits determine the PWM duty cycle vs. temper
0000
0001
0010
0011
0100
0101
0110
0111
1000
1001
1010
1011
1100
1101
1110
1111
t
y
h
gister Bits
onfiguration Regis
bits control the PW
=
=
=
=
=
=
=
=
=
=
=
=
=
=
=
=
=
=
=
=
=
=
=
11.0 Hz
14.7 Hz
22.1 Hz
29.4 Hz
35.3 Hz (default) 101 = 44.1 Hz
58.8 Hz
88.2 Hz
2°C
2.5°C
3.33°C
4°C
5°C
6.67°C
8°C
10°C
13.33°C
16°C
20°C
26.67°C
32°C (Default)
40°C
53.33°C
80°C
Rev. C | Page 42 of 52
ter 1 l
Mx fre
ock bit is set to 1. Further attempts to write to this register have no
quency.
Description
Remote 1 T
Local Temp T
Remote 2 T
THERM
RANGE
RANGE
RANGE
.
/PWM1 frequency
/PWM3 frequency
/PWM2 frequency
ature slope for automatic fan control
.