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ADT7467

更新时间: 2024-02-23 23:32:04
品牌 Logo 应用领域
安森美 - ONSEMI 风扇监控控制器
页数 文件大小 规格书
77页 931K
描述
dBCool Remote Thermal Monitor and Fan Controller

ADT7467 技术参数

是否无铅: 不含铅是否Rohs认证: 符合
生命周期:Transferred零件包装代码:SSOP
包装说明:MO-137AB, QSOP-16针数:16
Reach Compliance Code:unknownECCN代码:EAR99
HTS代码:8542.39.00.01风险等级:5.02
模拟集成电路 - 其他类型:ANALOG CIRCUITJESD-30 代码:R-PDSO-G16
JESD-609代码:e3长度:4.9 mm
湿度敏感等级:1功能数量:1
端子数量:16最高工作温度:120 °C
最低工作温度:-40 °C封装主体材料:PLASTIC/EPOXY
封装代码:SSOP封装等效代码:SSOP16,.25
封装形状:RECTANGULAR封装形式:SMALL OUTLINE, SHRINK PITCH
峰值回流温度(摄氏度):260电源:3.3/5 V
认证状态:Not Qualified座面最大高度:1.7526 mm
子类别:Motion Control Electronics最大供电电流 (Isup):3 mA
最大供电电压 (Vsup):5.5 V最小供电电压 (Vsup):3 V
标称供电电压 (Vsup):5 V表面贴装:YES
温度等级:INDUSTRIAL端子面层:Matte Tin (Sn)
端子形式:GULL WING端子节距:0.635 mm
端子位置:DUAL处于峰值回流温度下的最长时间:40
宽度:3.9116 mmBase Number Matches:1

ADT7467 数据手册

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dBCool Remote Thermal  
Monitor and Fan Controller  
ADT7467  
FEATURES  
GENERAL DESCRIPTION  
Controls and monitors up to 4 fans  
The ADT7467 dBCool® controller is a thermal monitor and  
multiple PWM fan controller for noise-sensitive or power-  
sensitive applications requiring active system cooling. The  
ADT7467 can drive a fan using either a low or high frequency  
drive signal, monitor the temperature of up to two remote  
sensor diodes plus its own internal temperature, and measure  
and control the speed of up to four fans so that they operate at  
the lowest possible speed for minimum acoustic noise.  
High and low frequency fan drive signal  
1 on-chip and 2 remote temperature sensors  
Series resistance cancellation on the remote channel  
Extended temperature measurement range, up to 191°C  
Dynamic TMIN control mode intelligently optimizes  
system acoustics  
Automatic fan speed control mode manages system cooling  
based on measured temperature  
The automatic fan speed control loop optimizes fan speed for a  
given temperature. A unique dynamic TMIN control mode  
enables the system thermals/acoustics to be intelligently  
managed. The effectiveness of the systems thermal solution can  
be monitored using the THERM input. The ADT7467 also  
provides critical thermal protection to the system using the  
bidirectional THERM pin as an output to prevent system or  
component overheating.  
Enhanced acoustic mode dramatically reduces user  
perception of changing fan speeds  
Thermal protection feature via  
output  
THERM  
Monitors performance impact of Intel Pentium 4 processor  
Thermal control circuit via input  
THERM  
2-wire, 3-wire, and 4-wire fan speed measurement  
Limit comparison of all monitored values  
Meets SMBus 2.0 electrical specifications  
(fully SMBus 1.1 compliant)  
FUNCTIONAL BLOCK DIAGRAM  
SCL SDA SMBALERT  
SERIAL BUS  
INTERFACE  
ADDRESS  
POINTER  
REGISTER  
AUTOMATIC  
FAN SPEED  
CONTROL  
ACOUSTIC  
ENHANCEMENT  
CONTROL  
PWM1  
PWM2  
PWM3  
PWM REGISTERS  
AND  
CONTROLLERS  
HF & LF  
PWM  
CONFIGURATION  
REGISTERS  
DYNAMIC  
T
MIN  
TACH1  
TACH2  
TACH3  
TACH4  
CONTROL  
FAN SPEED  
COUNTER  
INTERRUPT  
MASKING  
PERFORMANCE  
MONITORING  
THERMAL  
PROTECTION  
THERM  
INTERRUPT  
STATUS  
REGISTERS  
V
TO ADT7467  
SRC  
CC  
V
ADT7467  
CC  
D1+  
D1–  
D2+  
D2–  
LIMIT  
COMPARATORS  
INPUT  
SIGNAL  
CONDITIONING  
AND  
ANALOG  
MULTIPLEXER  
10-BIT  
ADC  
VALUE AND  
LIMIT  
REGISTERS  
V
CCP  
BAND GAP  
REFERENCE  
BAND GAP  
TEMP SENSOR  
GND  
Figure 1.  
©2008 SCILLC. All rights reserved.  
January 2008 – Rev. 3  
Publication Order Number:  
ADT7467/D  

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