- 您现在的位置：买卖IC网 > PDF目录67801 > MAX6656MEE+T (MAXIM INTEGRATED PRODUCTS INC) Dual Remote/Local Temperature Sensors and Four-Channel Voltage Monitors PDF资料下载
参数资料
| 型号： | MAX6656MEE+T |
| 厂商： | MAXIM INTEGRATED PRODUCTS INC |
| 元件分类： | 电源管理 |
| 英文描述： | Dual Remote/Local Temperature Sensors and Four-Channel Voltage Monitors |
| 中文描述： | 4-CHANNEL POWER SUPPLY SUPPORT CKT, PDSO16 |
| 封装： | 0.150 INCH, 0.025 INCH PTICH, QSOP-16 |
| 文件页数： | 14/18页 |
| 文件大小： | 256K |
| 代理商： | MAX6656MEE+T |
Detailed Description
The MAX6655/MAX6656 are voltage and temperature
monitors that communicate through an SMBus-compat-
ible interface with a microprocessor or microcontroller
in thermal management applications.
Essentially an 11-bit serial ADC with a sophisticated front
end, the MAX6655/MAX6656 contain a switched-current
source, a multiplexer, an ADC, an SMBus interface, and
the associated control logic. Temperature data from the
ADC is loaded into a data register, where it is automati-
cally compared with data previously stored in over/under-
temperature alarm threshold registers. Temperature data
can be read at any time with 11 bits of resolution.
The MAX6655/MAX6656 can monitor external supply volt-
ages of typically 12V, 2.5V, and 3.3V for the MAX6655
and 5.0V for the MAX6656, as well as their own supply
voltage. All voltage inputs are converted to an 8-bit code
using an ADC. Each input voltage is scaled down by an
on-chip resistive-divider so that its output, at the nominal
input voltage, is approximately 3/4 of the ADC’s full-scale
range, or a decimal count of 198.
ADC
The averaging ADC integrates over a 40ms period (typ)
with excellent noise rejection. The ADC converts a tem-
perature measurement in 125ms (typ) and a voltage
measurement in 62.5ms (typ). For temperature mea-
surements, the multiplexer automatically steers bias
currents through the remote diode, then the forward
voltage is measured and the temperature is computed.
The DXN input is biased at one diode drop above
ground by an internal diode to set up the ADC inputs for
a differential measurement. The worst-case DXP-DXN
differential input voltage range is +0.25V to +0.95V.
Excess resistance in series with the remote diode caus-
es about +1/2°C error/
. A 200V offset voltage at
DXP-DXN causes about -1°C error.
MAX6655/MAX6656
Dual Remote/Local Temperature Sensors and
Four-Channel Voltage Monitors
_______________________________________________________________________________________
5
Pin Description
PIN
NAME
FUNCTION
1VCC
Supply Voltage. +5V for MAX6655; +3.3V for MAX6656. Bypass VCC to GND with a 0.1F capacitor.
2
DXP1
External Diode 1 Positive Connection. DXP1 is the combined current source and ADC positive input
for remote-diode 1. If a remote-sensing junction is not used, connect DXP1 to DXN1.
3
DXN1
External Diode 1 Negative Connection. DXN1 is the combined current sink and ADC negative input
for remote-diode 1. DXN1 is normally biased to a diode voltage above ground.
4
ADD0
SMBus Slave Address Select Input. ADD0 and ADD1 are sampled upon power-up. Table 5 is the
truth table.
5
ADD1
SMBus Slave Address Select Input. ADD0 and ADD1 are sampled upon power-up.
6
DXP2
External Diode 2 Positive Connection. DXP2 is the combined current source and ADC positive input
for remote-diode 2. If a remote-sensing junction is not used, connect DXP2 to DXN2.
7
DXN2
External Diode 2 Negative Connection. DXN2 is the combined current sink and ADC negative input
for remote-diode 2. DXN2 is normally biased to a diode voltage above ground.
8
GND
Ground
9VIN3
External Voltage Monitor 3. VIN3 is typically used to monitor +2.5V supplies.
10
VIN1
External Voltage Monitor 1. VIN1 is typically used to monitor +12V supplies.
11
VIN2
External Voltage Monitor 2. VIN2 is typically used to monitor voltage supplies of +3.3V for MAX6655
and +5.0V for MAX6656.
12
ALERT
SMBus Alert (Interrupt) Output, Open-Drain
13
SMBDATA
SMBus Serial-Data Input/Output, Open-Drain
14
OVERT
Overtemperature Alarm Output, Open-Drain.
OVERT is an unlatched alarm output that responds to
the programmed maximum temperature limit for all temperature channels.
15
SMBCLK
SMBus Serial-Clock Input
16
STBY
Hardware Standby Input. Drive
STBY low for low-power standby mode. Drive STBY high for normal
operating mode. Temperature and comparison threshold data are retained in standby mode.
相关PDF资料 |
PDF描述 |
|---|---|
| MAX6657MSA+ | ±1°C, SMBus-Compatible Remote/Local Temperature Sensors with Overtemperature Alarms |
| MAX6657MSA+T | ±1°C, SMBus-Compatible Remote/Local Temperature Sensors with Overtemperature Alarms |
| MAX6658MSA+ | ±1°C, SMBus-Compatible Remote/Local Temperature Sensors with Overtemperature Alarms |
| MAX6658MSA+T | ±1°C, SMBus-Compatible Remote/Local Temperature Sensors with Overtemperature Alarms |
| MAX6660AEE+ | Remote-Junction Temperature-Controlled Fan-Speed Regulator with SMBus Interface |
相关代理商/技术参数 |
参数描述 |
|---|---|
| MAX6656MEE-TG05 | 功能描述:板上安装温度传感器 RoHS:否 制造商:Omron Electronics 输出类型:Digital 配置: 准确性:+/- 1.5 C, +/- 3 C 温度阈值: 数字输出 - 总线接口:2-Wire, I2C, SMBus 电源电压-最大:5.5 V 电源电压-最小:4.5 V 最大工作温度:+ 50 C 最小工作温度:0 C 关闭: 安装风格: 封装 / 箱体: 设备功能:Temperature and Humidity Sensor |
| MAX6657MSA | 功能描述:板上安装温度传感器 RoHS:否 制造商:Omron Electronics 输出类型:Digital 配置: 准确性:+/- 1.5 C, +/- 3 C 温度阈值: 数字输出 - 总线接口:2-Wire, I2C, SMBus 电源电压-最大:5.5 V 电源电压-最小:4.5 V 最大工作温度:+ 50 C 最小工作温度:0 C 关闭: 安装风格: 封装 / 箱体: 设备功能:Temperature and Humidity Sensor |
| MAX6657MSA+ | 功能描述:板上安装温度传感器 Remote/Local Temperature Sensor RoHS:否 制造商:Omron Electronics 输出类型:Digital 配置: 准确性:+/- 1.5 C, +/- 3 C 温度阈值: 数字输出 - 总线接口:2-Wire, I2C, SMBus 电源电压-最大:5.5 V 电源电压-最小:4.5 V 最大工作温度:+ 50 C 最小工作温度:0 C 关闭: 安装风格: 封装 / 箱体: 设备功能:Temperature and Humidity Sensor |
| MAX6657MSA+T | 功能描述:板上安装温度传感器 Remote/Local Temperature Sensor RoHS:否 制造商:Omron Electronics 输出类型:Digital 配置: 准确性:+/- 1.5 C, +/- 3 C 温度阈值: 数字输出 - 总线接口:2-Wire, I2C, SMBus 电源电压-最大:5.5 V 电源电压-最小:4.5 V 最大工作温度:+ 50 C 最小工作温度:0 C 关闭: 安装风格: 封装 / 箱体: 设备功能:Temperature and Humidity Sensor |
| MAX6657MSA-T | 功能描述:板上安装温度传感器 RoHS:否 制造商:Omron Electronics 输出类型:Digital 配置: 准确性:+/- 1.5 C, +/- 3 C 温度阈值: 数字输出 - 总线接口:2-Wire, I2C, SMBus 电源电压-最大:5.5 V 电源电压-最小:4.5 V 最大工作温度:+ 50 C 最小工作温度:0 C 关闭: 安装风格: 封装 / 箱体: 设备功能:Temperature and Humidity Sensor |
发布紧急采购，3分钟左右您将得到回复。