參數(shù)資料
型號： ADT7473ARQZ-1REEL7
廠商： ANALOG DEVICES INC
元件分類： 溫度/濕度傳感器
英文描述： DIGITAL TEMP SENSOR-SERIAL, 8BIT(s), 2.50Cel, RECTANGULAR, SURFACE MOUNT
封裝： ROHS COMPLIANT, MO-137AB, QSOP-16
文件頁數(shù)： 72/72頁
文件大小： 1494K
代理商： ADT7473ARQZ-1REEL7
ADT7473/ADT7473-1
Rev. C | Page 9 of 72
PRODUCT DESCRIPTION
The ADT7473/ADT7473-1 is a complete thermal monitor and
multiple fan controller for any system requiring thermal mon-
itoring and cooling. The device communicates with the system
via a serial system management bus. The serial bus controller
has a serial data line for reading and writing addresses and data
(Pin 16), and an input line for the serial clock (Pin 1). All con-
trol and programming functions for the ADT7473/ADT7473-1
are performed over the serial bus. Additionally, a pin can be
reconfigured as an SMBALERT output to signal out-of-limit
conditions.
Table 5 illustrates the differences between the ADT7473 and the
ADT7473-1.
Table 5. ADT7473/ADT7473-1 Device Comparison
Feature
ADT7473
ADT7473-1
Pin 5
Default:
PWM2
Default: THERM_LATCH
SMBus Address
Fixed address
Address selectable
Remote Ch. 2
Therm. Limit
= 100°C
= 136°C
Register 0x30,
0x31, 0x32
Default: 0x00
Default: 0xFF
Register 0x3F
Revision Register
Default: 0x68
Default: 0x69
Register 0x40, Bit 7
Reserved
(R/W)
1 = Reset Latch
(lockable)
Register 0x42, Bit 0
Reserved
(Read-only)
1 = THERM Limit
Latched
Registers 0x5C,
0x5D, 0x5E
Default: 0x82
Default: 0x62
Register 0x7C, Bit 4
Reserved
THERM Output
Hysteresis
Register 0x7D, Bit 4
Reserved
THERM_LATCH
Configuration
0 = Remote Channel 2
1 = Remote Channel 1
and Remote Channel 2
COMPARISON BETWEEN ADT7467 AND
ADT7473/ADT7473-1
The following list shows some comparisons between the
ADT7467 and the ADT7473/ADT7473-1:
The ADT7473/ADT7473-1 can be powered via a 3.3 V
supply only, and does not support 5 V operation, while the
ADT7467 does. Violating this specification results in
irreversible damage to the ADT7473/ADT7473-1. See the
ADT7473/ADT7473-1 Specifications section for more
information.
A high frequency PWM drive can be independently selected
for each PWM channel on the ADT7473/ADT7473-1. This
is not available on the ADT7467.
The range and resolution of the temperature offset register
can be changed from a ±64°C range at 0.5°C resolution to a
±128°C range at 1°C resolution. This is not available on the
ADT7467.
THERM overtemperature events can be disabled/enabled
individually on each temperature channel. This is not
available on the ADT7467.
Bit 7 of Configuration Register 1 is no longer supported
because the ADT7473/ADT7473-1 cannot be powered via
a 5 V supply.
Bit 0 of Configuration Register 1 (0x40) remains writable
after the lock bit is set. This bit enables monitoring.
2-wire fan speed measurement is not supported on the
ADT7473/ADT7473-1.
HOW TO SET THE FUNCTIONALITY OF PIN 9
Pin 9 on the ADT7473/ADT7473-1 has four possible functions:
SMBALERT, THERM, GPIO, and TACH4. The user chooses
the required functionality by setting Bit 0 and Bit 1 of
Configuration Register 4 (0x7D).
Table 6. Pin 9 Settings
Bit 0
Bit 1
Function
0
TACH4
0
1
THERM
1
0
SMBALERT
1
GPIO
RECOMMENDED IMPLEMENTATION
Configuring the ADT7473 as shown in Figure 14 allows the
system designer to use the following features:
Two PWM outputs for fan control of up to three fans. (The
front and rear chassis fans are connected in parallel.)
Three TACH fan speed measurement inputs.
VCC measured internally through Pin 3.
CPU temperature measured using Remote 1 temperature
channel.
Ambient temperature measured through Remote 2
temperature channel.
Bidirectional THERM pin. This feature allows Intel
Pentium 4 PROCHOT monitoring and can function as an
overtemperature THERM output. It can alternatively be
programmed as an SMBALERT system interrupt output.
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相關(guān)代理商/技術(shù)參數(shù)
參數(shù)描述
ADT7473ARQZ-1RL 功能描述:板上安裝溫度傳感器 FAN CNTRLR/INT 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
ADT7473ARQZ-REEL 功能描述:板上安裝溫度傳感器 FAN CNTRLR/INT 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
ADT7473ARQZ-REEL7 功能描述:IC REMOTE THERMAL CTRLR 16QSOP RoHS:是 類別:集成電路 (IC) >> PMIC - 熱管理 系列:dBCool® 標(biāo)準(zhǔn)包裝:1 系列:- 功能:溫度監(jiān)控系統(tǒng)（傳感器） 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:±2.5°C 本地（最大值），±5°C 遠(yuǎn)程（最大值） 拓?fù)?ADC，比較器，寄存器庫 輸出類型:2 線 SMBus? 輸出警報:無 輸出風(fēng)扇:無 電源電壓:2.7 V ~ 5.5 V 工作溫度:-40°C ~ 125°C 安裝類型:表面貼裝 封裝/外殼:SOT-23-8 供應(yīng)商設(shè)備封裝:SOT-23-8 包裝:Digi-Reel® 其它名稱:296-22675-6
ADT7473ARQZ-RL7 功能描述:板上安裝溫度傳感器 FAN CNTRLR/INT 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
ADT7473EBZEVB 功能描述:EVALUATION BOARD ADT7473 制造商:on semiconductor 系列:* 零件狀態(tài):在售 標(biāo)準(zhǔn)包裝:1
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