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| 型号： | ADT7473ARQZ-RL7 |
| 厂商： | ON Semiconductor |
| 文件页数： | 8/73页 |
| 文件大小： | 0K |
| 描述： | IC REMOTE THERMAL CTLR 16QSOP |
| 产品变化通告： | MFG CHG Notification ADI to ON Semi Product Discontinuation 30/Sept/2011 |
| 标准包装： | 1,000 |
| 系列： | dBCool® |
| 功能： | 风扇控制，温度监控器 |
| 传感器类型： | 内部和外部 |
| 感应温度： | -40°C ~ 125°C |
| 精确度： | ±2.5% |
| 拓扑： | ADC，比较器，风扇速度计数器，多路复用器，寄存器库 |
| 输出类型： | SMBus? |
| 输出警报： | 无 |
| 输出风扇： | 是 |
| 电源电压： | 3 V ~ 3.6 V |
| 工作温度： | -40°C ~ 125°C |
| 安装类型： | 表面贴装 |
| 封装/外壳： | 16-SSOP（0.154"，3.90mm 宽） |
| 供应商设备封装： | 16-QSOP |
| 包装： | 带卷 (TR) |
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ADT7473
Product Description
The ADT7473/ADT7473 ? 1 is a complete thermal
monitor and multiple fan controller for any system requiring
thermal monitoring 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 control 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
? 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 5.0 V supply.
Feature
Pin 5
ADT7473
Default: PWM2
ADT7473 ? 1
Default:
THERM_LATCH
?
Bit 0 of Configuration Register 1 (0x40) remains
writable after the lock bit is set. This bit enables
monitoring.
SMBus Address
Remote Ch. 2
Therm Limit
Register 0x30,
0x31, 0x32
Register 0x3F
Revision Reg
Register 0x40,
Bit 7
Fixed Address
= 100 ? C
Default: 0x00
Default: 0x68
Reserved
Address
selectable
= 136 ? C
Default: 0xFF
Default: 0x69
(R/W) 1 = Reset
Latch (Lockable)
? 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
Register 0x42,
Bit 0
Registers 0x5C,
0x5D, 0x5E
Register 0x7C,
Bit 4
Reserved
Default: 0x82
Reserved
(Read-only)
1 = THERM
Limit Latched
Default: 0x62
THERM Output
Hysteresis
Bit 0
0
0
1
1
Bit 1
0
1
0
1
Function
TACH4
THERM
SMBALERT
GPIO
Register 0x7D,
Bit 4
Reserved
THERM_LATCH
Configuration
0 = Remote
Channel 2
1 = Remote
Channel 1
and Remote
Channel 2
Recommended Implementation
Configuring the ADT7473 as shown in Figure 12 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.
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 5.0 V
operation, while the ADT7467 does. Violating this
specification results in irreversible damage to the
ADT7473/ADT7473 ? 1. See the Specifications section
for more information.
? V CC 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.
http://onsemi.com
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相关代理商/技术参数 |
参数描述 |
|---|---|
| ADT7473EBZEVB | 功能描述:EVALUATION BOARD ADT7473 制造商:on semiconductor 系列:* 零件状态:在售 标准包装:1 |
| ADT7473ZEVB | 功能描述:BOARD EVALUATION FOR ADT7473 RoHS:是 类别:编程器，开发系统 >> 过时/停产零件编号 系列:dBCool® 标准包装:1 系列:- 传感器类型:CMOS 成像，彩色（RGB） 传感范围:WVGA 接口:I²C 灵敏度:60 fps 电源电压:5.7 V ~ 6.3 V 嵌入式:否 已供物品:成像器板 已用 IC / 零件:KAC-00401 相关产品:4H2099-ND - SENSOR IMAGE WVGA COLOR 48-PQFP4H2094-ND - SENSOR IMAGE WVGA MONO 48-PQFP |
| ADT7475 | 制造商:ONSEMI 制造商全称:ON Semiconductor 功能描述:dBCOOL Remote Thermal Monitor and Fan Controller |
| ADT7475_1110 | 制造商:ONSEMI 制造商全称:ON Semiconductor 功能描述:dbCOOL Remote Thermal Monitor and Fan Controller |
| ADT7475ARQZ | 功能描述:马达/运动/点火控制器和驱动器 MLTCH TDM FAN CTRLR RoHS:否 制造商:STMicroelectronics 产品:Stepper Motor Controllers / Drivers 类型:2 Phase Stepper Motor Driver 工作电源电压:8 V to 45 V 电源电流:0.5 mA 工作温度:- 25 C to + 125 C 安装风格:SMD/SMT 封装 / 箱体:HTSSOP-28 封装:Tube |
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