参数资料
型号: MAX6699UE9C+T
厂商: Maxim Integrated
文件页数: 12/19页
文件大小: 295K
描述: IC TEMP MON 5CH PREC 16TSSOP
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: 内部和外部
感应温度: -40°C ~ 125°C,外部传感器
精确度: ±3°C(最小值)
拓扑: ADC,缓冲器,寄存器库
输出类型: I²C?/SMBus?
输出警报:
输出风扇:
电源电压: 3 V ~ 5.5 V
工作温度: -40°C ~ 125°C
安装类型: 表面贴装
封装/外壳: 16-TSSOP(0.173",4.40mm 宽)
供应商设备封装: 16-TSSOP
包装: 带卷 (TR)
cases, the alert is cleared even if the fault condition
exists, but the ALERT output reasserts at the end of the
next conversion. The bits indicating the fault for the
OVERT interrupt output clear only on reading the Status
2 register even if the fault conditions still exist. Reading
the Status 2 register does not clear the OVERT interrupt
output. To eliminate the fault condition, either the mea-
sured temperature must drop below the temperature
threshold minus the hysteresis value (4癈), or the trip
temperature must be set at least 4癈 above the current
temperature.
Applications Information
Remote-Diode Selection
The MAX6699 directly measures the die temperature of
CPUs and other ICs that have on-chip temperature-
sensing diodes (see the Typical Application Circuit), or
it can measure the temperature of a discrete diode-
connected transistor.
Effect of Ideality Factor
The accuracy of the remote temperature measurements
depends on the ideality factor (n) of the remote diode
(actually a transistor). The MAX6699 is optimized for
n = 1.008. A thermal diode on the substrate of an IC is
normally a pnp with the base and emitter brought out
the collector (diode connection) grounded. DXP_ must
be connected to the anode (emitter), and DXN_ must
be connected to the cathode (base) of this pnp. If a
sense transistor with an ideality factor other than 1.008
is used, the output data is different from the data
obtained with the optimum ideality factor. Fortunately,
the difference is predictable. Assume a remote-diode
5-Channel Precision Temperature Monitor
12   ______________________________________________________________________________________
BIT
NAME
POR
STATE
FUNCTION
7(MSB)
STOP
0
Standby Mode Control Bit. If STOP is set to logic 1, the MAX6699 stops
converting and enters standby mode.
6
POR
0
Reset Bit. Set to logic 1 to put the device into its power-on state. This bit is self-
clearing.
5
TIMEOUT
0
Timeout Enable Bit. Set to logic 0 to enable SMBus timeout.
4
Fast remote 1
0
Channel 1 Fast Conversion Bit. Set to logic 1 to enable fast conversion of
channel 1.
3
Resistance
cancellation
0
Resistance Cancellation Bit. When set to logic 1, the MAX6699 cancels series
resistance in the channel 1 thermal diode.
2
Reserved
0

1
Reserved
0

0
Reserved
0

Table 4. Configuration 1 Register
Table 5. Configuration 2 Register
BIT
NAME
POR
STATE
FUNCTION
7(MSB)
Reserved
0
6
Mask Local ALERT
0
Local Alert Mask. Set to logic 1 to mask local channel ALERT.
5
Reserved
0

4
Reserved
0

3
Mask ALERT 4
0
Channel 4 Alert Mask. Set to logic 1 to mask channel 4 ALERT.
2
Mask ALERT 3
0
Channel 3 Alert Interrupt Mask. Set to logic 1 to mask channel 3 ALERT.
1
Mask ALERT 2
0
Channel 2 Alert Mask. Set to logic 1 to mask channel 2 ALERT.
0
Mask ALERT 1
0
Channel 1 Alert Mask. Set to logic 1 to mask channel 1 ALERT.
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