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參數資料
型號: MAX1619MEE+
廠商: Maxim Integrated
文件頁數: 6/20頁
文件大小: 303K
描述: IC TEMP SENSOR W/ALARM 16-QSOP
產品培訓模塊: Lead (SnPb) Finish for COTS
標準包裝: 100
功能: 溫度計,恒溫計
傳感器類型: 內部和外部
感應溫度: -55°C ~ 125°C
精確度: ±3.5°C 本地(最大),±5°C 遠程(最大)
拓撲: ADC,比較器,多路復用器,寄存器庫
輸出類型: 2 線串行,I²C?/SMBUS?
輸出警報:
輸出風扇:
電源電壓: 3 V ~ 5.5 V
工作溫度: -55°C ~ 125°C
安裝類型: 表面貼裝
封裝/外殼: 16-SSOP(0.154",3.90mm 寬)
供應商設備封裝: 16-QSOP
包裝: 管件
Remote/Local Temperature Sensor with Dual-
Alarm Outputs and SMBus Serial Interface
6  _______________________________________________________________________________________
Pin Description
Detailed Description
The MAX1619 is a temperature sensor designed to work
in conjunction with an external microcontroller (礐) or
other intelligence in thermostatic, process-control, or
monitoring applications. The 礐 is typically a power-
management or keyboard controller, generating SMBus
serial commands either by bit-banging general-pur-
pose input/output (GPIO) pins or through a dedicated
SMBus interface block.
Essentially an 8-bit serial analog-to-digital converter
(ADC) with a sophisticated front end, the MAX1619
contains a switched current source, a multiplexer, an
ADC, an SMBus interface, and associated control logic
(Figure 1). Temperature data from the ADC is loaded
into two data registers (local and remote). The remote
temperature data is automatically compared with data
previously stored in four temperature-alarm threshold
registers. One pair of alarm-threshold registers is used
to provide hysteretic fan control; the other pair is used
for alarm interrupt. The local temperature data is avail-
able for monitoring.
ADC and Multiplexer
The ADC is an averaging type that integrates over a
60ms period (each channel, typical) with excellent
noise rejection.
The multiplexer automatically steers bias currents
through the remote and local diodes, measures their
forward voltages, and computes their temperatures.
Both channels are automatically converted once the
conversion process has started, either in free-running
or single-shot mode. If one of the two channels is not
used, the device still performs both measurements, and
the user can simply ignore the results of the unused
channel.
The DXN input is biased at 0.65V above ground by an
internal diode to set up the analog-to-digital (A/D)
inputs for a differential measurement. The worst-case
DXPDXN differential input voltage range is 0.25V to
0.95V.
Excess resistance in series with the remote diode caus-
es about +1/2癈 error per ohm. Likewise, 200礦 of off-
set voltage forced on DXPDXN causes about 1癈 error.
SMBus Serial-Data Input/Output, Open Drain
SMBDATA
12
SMBus Serial-Clock Input
SMBCLK
14
Hardware Standby Input. Temperature and comparison threshold data are retained in standby mode.
Low = standby mode, high = operate mode.
STBY
15
SMBus Address Select Pin (Table 8). ADD0 and ADD1 are sampled upon power-up. Excess capacitance
(>50pF) at the address pins when floating may cause address-recognition problems.
ADD1
6
Ground
GND
7, 8
SMBus Slave Address Select Pin
ADD0
10
SMBus Alert (interrupt) Output, Open Drain
ALERT
11
Combined Current Sink and A/D Negative Input. DXN is normally internally biased to a diode voltage
above ground.
DXN
4
Combined Current Source and A/D Positive Input for Remote-Diode Channel. Do not leave DXP floating;
connect DXP to DXN if no remote diode is used. Place a 2200pF capacitor between DXP and DXN for
noise filtering.
DXP
3
PIN
Supply Voltage Input, 3V to 5.5V. Bypass to GND with a 0.1礔 capacitor. A 200& series resistor is recom-
mended but not required for additional noise filtering.
V
CC
1
FUNCTION
NAME
Overtemperature Alarm Output, Open Drain. This is an unlatched alarm output that responds only to the
remote diode temperature.
OVERT
9
Not internally connected. Connect to GND to act against leakage paths from V
CC
to DXP.
GND
2
No Connection. Not internally connected. May be used for PC board trace routing.
N.C.
5, 13,
16
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參數描述
MAX1619MEE+ 功能描述:板上安裝溫度傳感器 Remote/Local Temp Sensor w Dual Alarm RoHS:否 制造商:Omron Electronics 輸出類型:Digital 配置: 準確性:+/- 1.5 C, +/- 3 C 溫度閾值: 數字輸出 - 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 關閉: 安裝風格: 封裝 / 箱體: 設備功能:Temperature and Humidity Sensor
MAX1619MEE+T 功能描述:板上安裝溫度傳感器 Remote/Local Temp Sensor w Dual Alarm RoHS:否 制造商:Omron Electronics 輸出類型:Digital 配置: 準確性:+/- 1.5 C, +/- 3 C 溫度閾值: 數字輸出 - 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 關閉: 安裝風格: 封裝 / 箱體: 設備功能:Temperature and Humidity Sensor
MAX1619MEE-T 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: 準確性:+/- 1.5 C, +/- 3 C 溫度閾值: 數字輸出 - 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 關閉: 安裝風格: 封裝 / 箱體: 設備功能:Temperature and Humidity Sensor
MAX161AC/D 功能描述:數據轉換系統 RoHS:否 制造商:Texas Instruments 轉換速率:0.001 MSPs 分辨率:24 bit 最大工作溫度:+ 125 C 最小工作溫度:- 40 C 安裝風格:SMD/SMT 封裝 / 箱體:TQFP-64 封裝:Reel
MAX161ACPI 功能描述:數據轉換系統 RoHS:否 制造商:Texas Instruments 轉換速率:0.001 MSPs 分辨率:24 bit 最大工作溫度:+ 125 C 最小工作溫度:- 40 C 安裝風格:SMD/SMT 封裝 / 箱體:TQFP-64 封裝:Reel
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