參數(shù)資料
型號(hào)： ADT7463ARQZ-REEL
廠商： ON Semiconductor
文件頁數(shù)： 46/50頁
文件大小： 726K
描述： IC REMOTE THERMAL CTRLR 24-QSOP
產(chǎn)品變化通告： MFG CHG Notification ADI to ON Semi
QSOP 24ld Pkg (MSL) Change 17/Jun/2010
標(biāo)準(zhǔn)包裝： 2,500
系列： dBCool®
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 ~ 120°C，外部傳感器
精確度： ±1.5°C（最小值）
拓?fù)洌?/td> ADC，比較器，風(fēng)扇速度計(jì)數(shù)器，多路復(fù)用器，寄存器庫
輸出類型： SMBus?
輸出警報(bào)： 無
輸出風(fēng)扇： 是
電源電壓： 3 V ~ 5.5 V
工作溫度： -40°C ~ 120°C
安裝類型： 表面貼裝
封裝/外殼： 24-SSOP（0.154"，3.90mm 寬）
供應(yīng)商設(shè)備封裝： 24-QSOP
包裝： 帶卷 (TR)
ADT7463
http://onsemi.com
46
Table 75. REGISTER 0X73  CONFIGURATION REGISTER 2 (POWERON DEFAULT = 0X00) (Note 1)
Bit
Name
R/W
Description
0
AIN1
R/W
AIN1 = 0, Speed of 3wire fans measured using the TACH output from the fan.
AIN1 = 1, Pin 11 is reconfigured to measure the speed of 2wire fans using an external sensing
resistor and coupling capacitor. AIN voltage threshold is set via Configuration Register 4
(Reg. 0x7D).
1
AIN2
R/W
AIN2 = 0, Speed of 3wire fans measured using the TACH output from the fan.
AIN2 = 1, Pin 12 is reconfigured to measure the speed of 2wire fans using an external sensing
resistor and coupling capacitor. AIN voltage threshold is set via Configuration Register 4
(Reg. 0x7D).
2
AIN3
R/W
AIN3 = 0, Speed of 3wire fans measured using the TACH output from the fan.
AIN3 = 1, Pin 9 is reconfigured to measure the speed of 2wire fans using an external sensing
resistor and coupling capacitor. AIN voltage threshold is set via Configuration Register 4
(Reg. 0x7D).
3
AIN4
R/W
AIN4 = 0, Speed of 3wire fans measured using the TACH output from the fan.
AIN4 = 1, Pin 14 is reconfigured to measure the speed of 2wire fans using an external sensing
resistor and coupling capacitor. AIN voltage threshold is set via Configuration Register 4
(Reg. 0x7D).
4
AVG
R/W
AVG = 1, Averaging on the temperature and voltage measurements is turned off. This allows
measurements on each channel to be made much faster.
5
ATTN
R/W
ATTN = 1, the ADT7463 removes the attenuators from the 2.5 V, V
CCP
, 5 V, and 12 V inputs.
The inputs can be used for other functions such as connecting up external sensors.
6
CONV
R/W
CONV = 1, the ADT7463 is put into a singlechannel ADC conversion mode. In this mode, the
ADT7463 can be made to read continuously from one input only, for example, Remote 1
temperature. It is also possible to start ADC conversions using an external clock on Pin 11 by
setting Bit 2 of Test Register 2 (Reg. 0x7F). This mode could be useful if, for example, users
wanted to characterize/profile CPU temperature quickly. The appropriate ADC channel is
selected by writing to Bits <7:5> of TACH1 min high byte register (Reg. 0x55).
Bits <7:5> Reg. 0x55
Channel Selected
000
2.5V
001
V
CCP
010
V
CC
 (3.3V)
011
5V
100
12V
101
Remote 1 Temp
110
Local Temp
111
Remote 2 Temp
7
SHDN
R/W
SHDN = 1, ADT7463 goes into shutdown mode. All PWM outputs assert low (or high
depending, on state of INV bit) to switch off all fans. The PWM current duty cycle registers read
0x00 to indicate that the fans are not being driven.
1.  This register becomes readonly when the Configuration Register 1 Lock bit is set to 1. Further attempts to write to this register have no effect.
Table 76. REGISTER 0X74  INTERRUPT MASK REGISTER 1 (POWERON DEFAULT <7:0> = 0X00)
Bit
Name
R/W
Description
0
2.5V
R/W
A 1 masks SMBALERT
 for outoflimit conditions on the 2.5 V channel.
1
V
CCP
R/W
A 1 masks SMBALERT
 for outoflimit conditions on the V
CCP
 channel.
2
V
CC
R/W
A 1 masks SMBALERT
 for outoflimit conditions on the V
CC
 channel.
3
5V
R/W
A 1 masks SMBALERT
 for outoflimit conditions on the 5 V channel.
4
R1T
R/W
A 1 masks SMBALERT
 for outoflimit conditions on the Remote 1 Temperature channel.
5
LT
R/W
A 1 masks SMBALERT
 for outoflimit conditions on the Local Temperature channel.
6
R2T
R/W
A 1 masks SMBALERT
 for outoflimit conditions on the Remote 2 Temperature channel.
7
OOL
R/W
A 1 masks SMBALERT
 for any outoflimit condition in Status Register 2.
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ADT7466ARQZ-REEL 功能描述:板上安裝溫度傳感器 RMT THRM CTR VLT MON RoHS:否 制造商:Omron Electronics 輸出類型:Digital 配置: 準(zhǔn)確性:+/- 1.5 C, +/- 3 C 溫度閾值: 數(shù)字輸出 - 總線接口:2-Wire, I2C, SMBus 電源電壓-最大:5.5 V 電源電壓-最小:4.5 V 最大工作溫度:+ 50 C 最小工作溫度:0 C 關(guān)閉: 安裝風(fēng)格: 封裝 / 箱體: 設(shè)備功能:Temperature and Humidity Sensor
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