参数资料
型号: MAX6652AUB+
厂商: MAXIM INTEGRATED PRODUCTS INC
元件分类: 电源管理
英文描述: Temperature Sensor and System Monitor in a 10-Pin µMAX
中文描述: 4-CHANNEL POWER SUPPLY SUPPORT CKT, PDSO10
封装: MICRO MAX PACKAGE-10
文件页数: 1/12页
文件大小: 165K
代理商: MAX6652AUB+
General Description
The MAX6652 system supervisor monitors multiple
power-supply voltages, including its own, and also fea-
tures an on-board temperature sensor. Voltages and
temperature are converted to an 8-bit code using an
analog-to-digital converter (ADC). A multiplexer automat-
ically sequences through the voltage and temperature
measurements. The digitized signals are then stored in
registers and compared to the over/under threshold lim-
its programmed over the 2-wire serial interface.
When a temperature measurement exceeds the pro-
grammed threshold, or when an input voltage falls out-
side the programmed voltage limits, the MAX6652
generates a latched interrupt output ALERT. Three inter-
rupt modes are available for temperature excursions:
default mode, one-time interrupt mode, and comparator
mode. The ALERT output is cleared, except for tempera-
ture interrupts generated in comparator mode, by read-
ing the interrupt status register (Table 5). The ALERT
output can also be masked by writing to the appropriate
bits in the interrupt mask register (Table 6) or by setting
bit 1 of the configuration register (Table 4) to 0. The
MAX6652 I
2C-compatible/SMBus interface also
responds to the SMB alert response address.
The 2-wire serial interface accepts both I
2C and standard
system management bus (SMBus) write byte, read byte,
send byte, and receive byte commands to program the
alarm thresholds and to read voltage and temperature
data. Voltage data is scaled so that when the nominal
voltage is present at a pin (e.g., 3.3V for the 3.3VIN pin),
the conversion result is equal to 3/4 of the ADC full-scale
range or a decimal count of 192 (Table 3). The tempera-
ture data format is 7 bits plus sign, with each data bit
representing 1°C, in two's complement format (Table 2).
The MAX6652 has only one address pin, ADD. One of
four different address codes can be selected by con-
necting the ADD pin to GND, VCC, SDA, or SCL.
Whenever an I
2C-compatible/SMBus transaction is initiat-
ed, the two LSBs of the slave address register are deter-
mined by connection, setting the chip address to one of
four possible values. In addition, an address code can
also be directly written to the serial address register. This
code will overwrite the code set by connection of the
ADD pin, until the MAX6652 is taken through a power-on
reset cycle.
The MAX6652 features 60Hz or 50Hz line-frequency
rejection for optimal performance. The device operates
from +2.7V to +5.5V and is specified for operation from
-40°C to +125°C. It is available in a tiny 10-pin MAX
package.
Features
o Monitors Four Voltages (2.5V, 3.3V, 12V, VCC)
o Monitors Local Temperature
o Temperature Measurement Accuracy,
±2°C (TA = +25°C)
o User-Programmable Voltage and Temperature
Thresholds
o Alert Function with Ability to Respond to SMB
Alert Response Address
o +2.7V to +5.5V Supply Range
o -40°C to +125°C Temperature Range
o 60Hz or 50Hz Line-Frequency Rejection
o Tiny 10-Pin MAX Package
Applications
MAX6652
Temperature Sensor and System Monitor
in a 10-Pin MAX
________________________________________________________________ Maxim Integrated Products
1
1
2
3
4
5
10
9
8
7
6
VCC
SCL
SDA
ADD
N.C.
3.3VIN
2.5VIN
12VIN
MAX6652
MAX
TOP VIEW
GND
ALERT
Pin Configuration
19-1959; Rev 1; 8/01
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.
Ordering Information
PART
TEMP. RANGE
PIN-PACKAGE
MAX6652AUB
-40°C to +125°C
10 MAX
I
2C is a trademark of Philips Corp.
Workstations
Servers
Networking
Telecommunications
Typical Application Circuit and Functional Diagram appear
at end of data sheet.
相关PDF资料
PDF描述
MAX6652AUB+T Temperature Sensor and System Monitor in a 10-Pin µMAX
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MAX6654YMEE+ 1°C Accurate Remote/Local Temperature Sensor with SMBus Serial Interface
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MAX6652AUB+T 功能描述:板上安装温度传感器 Temperature Sensor & System Monitor 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
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MAX6652EUB 制造商:Maxim Integrated Products 功能描述:- Rail/Tube
MAX6653AEE 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