參數(shù)資料
型號： ADM1033ARQZ-RL7
廠商： ON Semiconductor
文件頁數(shù)： 9/35頁
文件大?。?/td> 424K
描述： IC THERM/FAN SPEED CTLR 16-QSOP
產(chǎn)品變化通告： MFG CHG Notification ADI to ON Semi
Product Discontinuation 30/Sept/2011
標(biāo)準(zhǔn)包裝： 1,000
功能： 風(fēng)扇控制，溫度監(jiān)控器
傳感器類型： 內(nèi)部和外部
感應(yīng)溫度： -40°C ~ 125°C，外部傳感器
精確度： ±1°C
拓?fù)洌?/td> ADC，比較器，多路復(fù)用器，寄存器庫
輸出類型： SMBus?
輸出警報(bào)： 是
輸出風(fēng)扇： 是
電源電壓： 3 V ~ 3.6 V
工作溫度： -40°C ~ 125°C
安裝類型： 表面貼裝
封裝/外殼： 16-SSOP（0.154"，3.90mm 寬）
供應(yīng)商設(shè)備封裝： 16-QSOP
包裝： 帶卷 (TR)
ADM1033
http://onsemi.com
9
The ADM1033 responds to the following commands:
?SPAN class="pst ADM1033ARQZ-RL7_2616924_3"> Prepare to ARP (General)
?SPAN class="pst ADM1033ARQZ-RL7_2616924_3"> Reset Device (General and Directed)
?SPAN class="pst ADM1033ARQZ-RL7_2616924_3"> Get UDID (General and Directed)
?SPAN class="pst ADM1033ARQZ-RL7_2616924_3"> Assign Address (General)
Table 5. INTERNAL REGISTER DESCRIPTIONS
Register
Description
Configuration
Provides control and configuration of various functions on the device.
Conversion Rate
Determines the number of measurements per second completed by the ADM1033.
Address Pointer
Contains the address that selects one of the other internal registers. When writing to the ADM1033,
the first byte of data is always a register address, written to the address pointer register.
Status
Provides the status of each limit comparison.
Interrupt Mask
Allows the option to mask ALERT
s due to particular out-of-limit conditions.
Value and Limit
Stores the results of temperature and fan speed measurements, along with their limit values.
Offset
Allows the local and remote temperature channel readings to be offset by a twos complement value
written to them. These values are automatically added to the temperature values (or subtracted from
them if negative). This allows the systems designer to optimize the system if required, by adding or
subtracting up to 15.875癈 from a temperature reading.
THERM
 Limit and Hysteresis
Contains the temperature value at which THERM
 is asserted and indicates the level of hysteresis.
Look-up Table
Used to program the look-up table for the fan speed-to-temperature profile.
THERM
 % On-time and
THERM
 % Limit
Reflects the state of the THERM
 input and monitors the duration of the assertion time of the signal as
a percentage of a time window. The user can program the length of the time window.
Table 6. RESISTOR RATIOS FOR SETTING LOCATION BITS
Ideal Ratio R2/(R1 + R2)
R1 kW
R2 W
Actual R2/(R1 + R2)
Error %
SMBus Ver
(Note 1)
SMBus Address
UDID LLL
N/A
0
O/C
1
0
ARP
N/A
111
0.8125
18
82
0.82
+0.75
ARP
N/A
110
0.6875
22
47
0.6812
0.63
ARP
N/A
101
0.5625
12
15
0.5556
0.69
ARP
N/A
100
0.4375
15
12
0.4444
+0.69
FD
0x53
N/A
0.3125
47
22
0.3188
+0.63
FD
0x52
N/A
0.1875
82
18
0.18
0.75
FD
0x51
N/A
N/A
O/C
0
0
0
FD
0x50
N/A
1.  ARP denotes ARP-capable mode, FD denotes fixed and discoverable mode.
Table 7. UDID VALUES
Bit No.
Name
Function
Value
<127:120>
Device Capabilities
Describes the ADM1033s capabilities (for instance, that it supports
PEC and uses a random number address device).
11000001
<119:112>
Version/Revision
UDID version number (Version 1) and silicon revision identification
00001010
<111:96>
Vendor ID
Analog Devices vendor ID number, as assigned by the SBS
Implementers Forum or the PCI SIG.
00010001
11010100
<95:80>
Device ID
Device ID.
00010000
00110100
<79:64>
Interface
Identifies the protocol layer interfaces supported by the ADM1033.
This represents SMBus 2.0 as the Interface version..
00000000
00000100
<63:48>
Subsystem Vendor ID
Subsystem Vendor ID = 0 (subsystem fields are unsupported).
00000000
00000000
<47:32>
Subsystem Device ID
Subsystem Device ID = 0 (subsystem fields are unsupported).
00000000
00000000
<31:0>
Vendor Specific ID
A unique number per device. Contains LOCATION information (LL)
and a 16-bit random number (x). See Table 9 for information on
setting the LLL bits.
00000000
00000LLL
xxxxxxxx
xxxxxxxx
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