參數(shù)資料
型號(hào): MAX6655
廠商: Maxim Integrated Products, Inc.
元件分類: 溫度/濕度傳感器
英文描述: Dual Remote/Local Temperature Sensors and Four-Channel Voltage Monitors
中文描述: 雙路、遠(yuǎn)端/本地溫度傳感器及四路電壓監(jiān)視器
文件頁數(shù): 1/18頁
文件大?。?/td> 255K
代理商: MAX6655
General Description
The MAX6655/MAX6656 are precise voltage and tem-
perature monitors. The digital thermometer reports the
temperature of two remote sensors and its own die tem-
perature. The remote sensors are diode-connected
transistors—typically a low-cost, easily mounted
2N3906 PNP type—that replace conventional thermis-
tors or thermocouples. Remote accuracy is ±1°C for
multiple transistor manufacturers with no calibration
necessary. The remote channels can also measure the
die temperature of other ICs, such as microprocessors,
that contain a substrate-connected PNP with its collec-
tor grounded and its base and emitter available for tem-
perature-sensing purposes. The temperature is
digitized with 11-bit resolution.
The MAX6655/MAX6656 also measure their own supply
voltage and three external voltages with 8-bit resolution.
Each voltage input’s sensitivity is set to give approxi-
mately 3/4-scale output code when the input voltage is
at its nominal value. The MAX6655 operates at +5V
supply and its second voltage monitor is 3.3V. The
MAX6656 operates on a +3.3V supply and its second
voltage monitor is 5V.
The 2-wire serial interface accepts standard SMBus
Write Byte, Read Byte, Send Byte, and Receive Byte
commands to program the alarm thresholds and to
read data. The MAX6655/MAX6656 also provide
SMBus alert response and timeout functions. The
MAX6655/MAX6656 measure automatically and
autonomously, with the conversion rate programmable.
The adjustable rate allows the user to control the supply
current.
In addition to the SMBus
ALERT
output, the MAX6655/
MAX6656 feature an
OVERT
output, which is used as a
temperature reset that remains active only while the
temperature is above the maximum temperature limit.
The
OVERT
output is optimal for fan control or for sys-
tem shutdown.
Applications
Notebooks
Thin Clients
Servers
Workstations
Communication Equipment
Desktop PC
Features
o
Three Temperature Channels
Two Remote PN Junctions
One Local Sensor
o
Four Voltage Channels
+12V, +5V, +3.3V, +2.5V
Three External Monitors
One Internal Supply Monitor
o
11-Bit, 0.125°C Resolution
o
High Accuracy: ±1°C Over +60°C to +100°C
Temperature Range
o
Programmable Under/Over-Threshold Alarms
o
Programmable Power-Saving Mode
o
No Calibration Required
o
SMBus/I
2
C-Compatible Interface
o
OVERT
Output for Fan Control and System
Shutdown
M
Dual Remote/Local Temperature Sensors and
Four-Channel Voltage Monitors
________________________________________________________________
Maxim Integrated Products
For pricing, delivery, and ordering information, please contact Maxim/Dallas Direct! at
1-888-629-4642, or visit Maxim’s website at www.maxim-ic.com.
1
16
15
14
13
12
11
10
9
1
2
3
4
5
6
7
8
V
CC
STBY
SMBCLK
OVERT
SMBDATA
ALERT
V
IN2
V
IN1
V
IN3
TOP VIEW
MAX6655
MAX6656
QSOP
DXP1
DXN1
DXP2
ADD0
ADD1
DXN2
GND
Pin Configuration
Ordering Information
19-2117; Rev 0; 7/01
PART
TEMP. RANGE
-55
°
C to +125
°
C
-55
°
C to +125
°
C
PIN-PACKAGE
16 QSOP
16 QSOP
MAX6655
MEE
MAX6656
MEE
SMBus is a trademark of Intel Corp.
I
2
C is a trademark of Philips Corp.
Typical Application Circuit appears at end of data sheet.
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MAX6655EVKIT 功能描述:板上安裝溫度傳感器 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
MAX6655EVSYS 功能描述:板上安裝溫度傳感器 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
MAX6655MEE 功能描述:板上安裝溫度傳感器 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
MAX6655MEE+ 功能描述:板上安裝溫度傳感器 Dual Remote/Local Temperature Sensor 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
MAX6655MEE+T 功能描述:板上安裝溫度傳感器 Dual Remote/Local Temperature Sensor 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