参数资料
型号: MAX6683AUB+T
厂商: Maxim Integrated
文件页数: 7/14页
文件大小: 0K
描述: IC TEMP SENSOR MON 10-UMAX
产品培训模块: Lead (SnPb) Finish for COTS
Obsolescence Mitigation Program
标准包装: 2,500
功能: 温度监控系统(传感器)
传感器类型: 内部
感应温度: -40°C ~ 125°C
精确度: ±3°C(最小值)
拓扑: ADC,多路复用器,寄存器库
输出类型: I²C?/SMBus?
输出警报:
输出风扇:
电源电压: 2.7 V ~ 5.5 V
工作温度: -40°C ~ 125°C
安装类型: 表面贴装
封装/外壳: 10-TFSOP,10-MSOP(0.118",3.00mm 宽)
供应商设备封装: 10-uMAX
包装: 带卷 (TR)
Temperature Sensor and
System Monitor in a 10-Pin μMAX
Table 2. Temperature Data Format
(Two's Complement)
HIGH BYTE
voltage. This is equivalent to 4 and 2 cycles of 60Hz,
respectively, and provides protection against noise
pickup from the main supply. The internal oscillator fre-
quency can be changed to provide the same protection
against 50Hz by setting bit 7 in the Configuration
TEMPERATURE
(°C)
+125
+25
+1
0
-1
-25
-40
LOW BYTE
0.875
0.125
DIGITAL OUTPUT
(BINARY)
0111 1101
0001 1001
0000 0001
0000 0000
1111 1111
1110 0111
1101 1000
1110 0000
0010 0000
DIGITAL OUTPUT
(HEX)
7D
19
01
00
FF
E7
D8
D0
20
Register to 1 (Table 4). The multiplexer automatically
sequences through the inputs, measuring voltages and
temperature.
Low-Power Shutdown Mode
Setting bit 0 in the Configuration Register to zero stops
the monitoring loop and puts the MAX6683 into low-
power shutdown mode. In this mode, the SMBus/I 2 C
interface remains active, and the supply current drops
to 10μA or less.
Power-On Reset
The MAX6683 POR supply voltage is typically 2V.
Below this supply voltage, all registers are reset, the
device is put into shutdown mode, and the SMBus/I 2 C
interface is inactive.
ten to the Serial Address Register. This code overwrites
the code set by connection of the ADD pin, until the
MAX6683 is taken through a POR cycle.
ADC and Multiplexer
The ADC integrates over a 66ms period, an integral
multiple of the line period with excellent noise rejection.
The internal oscillator is trimmed to produce a 66ms
conversion time for temperature and 33ms for each
Table 3. Voltage Data Format
Alarm Threshold Registers
Two registers, a hot temperature limit (T HOT ) at 39h and
a hot temperature hysteresis (T HYST ) at 3Ah, store
alarm threshold data (Table 1). If a measured tempera-
ture exceeds the value of T HOT , an ALERT is asserted.
Alerts are cleared and reasserted depending on
the interrupt mode selected in the Temperature
Configuration Register (see ALERT Interrupts).
ADC OUTPUT
CODE
LSB weight
0
1
2
64 (1/4 scale)
128 (1/2 scale)
192 (3/4 scale)
253
254
255
INPUT VOLTAGE
AT 1.8V IN
9.375mV (1.8V/192)
< 9.375mV
9.375mV to 18.75mV
18.75mV to 28.125mV
600mV to 609.4mV
1.2V to 1.2094V
1.8V to 1.737V
2.372V to 2.381V
2.381V to 2.391V
= 2.391V
INPUT VOLTAGE
AT 2.5V IN
13mV (2.5V/192)
< 13mV
13mV to 26mV
26mV to 39mV
833mV to 846mV
1.667V to 1.680V
2.5V to 2.513V
3.294V to 3.307V
3.572V to 3.586V
= 3.586V
INPUT VOLTAGE
AT 5V IN
26mV (5V/192)
< 26mV
26mV to 52mV
52mV to 78mV
1.664V to 1.692V
3.330V to 3.560V
5V to 5.026V
6.566V to 6.640V
6.615V to 6.640V
= 6.640V
V CC = +3.3V
17.2mV (3.3V/192)
3.3V to 3.317V
4.348V to 4.366V
4.366V to 4.383V
= 4.383V
_______________________________________________________________________________________
7
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