參數(shù)資料
型號(hào)： MAX6688AU75L
廠商： MAXIM INTEGRATED PRODUCTS INC
元件分類： 模擬信號(hào)調(diào)理
英文描述： MS3106A18-18P
中文描述： SPECIALTY ANALOG CIRCUIT, PDSO8
封裝： 3 X 3 MM, MO-187CAA, MICRO, SOP-8
文件頁(yè)數(shù)： 4/7頁(yè)
文件大?。?/td> 138K
代理商： MAX6688AU75L
M
Detailed Description
The MAX6687/MAX6688 sense the temperatures of
both a remote P-N junction and their own die. The
external P-N junction is typically a base-emitter junction
of a substrate PNP on a microprocessor, FPGA, or
ASIC die (see the
Typical Operating Circuit
).
The remote temperature switch has a factory-pro-
grammed trip temperature of either +120
°
C or +125
°
C
and is intended to be used for system shutdown when
the die temperature of a remote IC, such as a micro-
processor, FPGA, or ASIC exceeds the factory-pro-
grammed thresholds.
The local temperature switch has a pin-programmable
threshold temperature (Table 1). This temperature
switch may be used for such functions as system shut-
down or for turning on a cooling fan when board tem-
perature exceeds the temperature limit. Two
temperature ranges are available for the local trip
threshold: +40
°
C to +80
°
C and +75
°
C to +115
°
C. S1
and S2 pins must be set to the desired trip temperature
before power is applied to the V
DD
pin. If S1 and S2
settings are changed after the power is turned on, the
local trip threshold remains set to the point where S1
and S2 were when power was applied.
Since the MAX6687/MAX6688 are often used for sys-
tem shutdown, they are designed so that the outputs
do not change on transient faults or when power is first
applied. This eliminates the possibility that the IC could
erroneously shut a system down.
The MAX6687/MAX6688 provide noise immunity by
integration and oversampling of the diode voltage, but
good design practice includes routing the DXP and
DXN lines away from noise sources, such as high-
speed digital lines, switching regulators, inductors, and
transformers. The DXP and DXN traces should be
paired together and surrounded by a ground plane
whenever possible.
Local/Remote Temperature Switches in a
μMAX Package
4
_______________________________________________________________________________________
Pin Description
PIN
MAX6687
1
2
MAX6688
1
2
NAME
FUNCTION
V
DD
GND
Power-Supply Input. Bypass to GND with a 0.1μF capacitor.
Ground
This pin connects to the positive (anode) terminal of the external P-N sense junction. It sources
current into the external junction. A 2200pF capacitor should be connected across DXP and
DXN.
This pin connects to the negative (cathode) terminal of the external P-N sense junction. It sinks
current from the external junction. A 2200pF capacitor should be connected across DXP and
DXN. DXN must be connected to the GND pin at the pin.
Open-Drain Active-Low Output. T
REMOTE
goes low when the temperature exceeds the factory-
programmed temperature threshold, either +120
°
C or +125
°
C. Connect a pullup resistor
(typically 10k
) between T
REMOTE
and a positive power supply up to 5.5V.
CMOS Push-Pull, Active-High Output. T
REMOTE
goes high when the temperature exceeds the
factory-programmed temperature threshold, either +120
°
C or +125
°
C.
Open-Drain Active-Low Output. T
LOCAL
goes low when the temperature exceeds the pin-
programmable temperature threshold set by S1 and S2. Connect a pullup resistor (typically
10k
) between T
LOCAL
and a positive power supply up to 5.5V.
3
3
DXP
4
4
DXN
5
—
T
REMOTE
—
5
T
REMOTE
6
—
T
LOCAL
—
6
T
LOCAL
CMOS Push-Pull, Active-High Output. T
LOCAL
goes high when the temperature exceeds the
pin-programmable temperature threshold set by S1 and S2.
7
7
S1
Threshold Select Input. Used in conjunction with S2 to set the local threshold temperature
(Table 1). It can be connected to V
DD
, GND, or left floating.
8
8
S2
Threshold Select Input. Used in conjunction with S1 to set the local threshold temperature
(Table 1). It can be connected to V
DD
, GND, or left floating.
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相關(guān)代理商/技術(shù)參數(shù)
參數(shù)描述
MAX6688AU75L+ 功能描述:板上安裝溫度傳感器 Remote-Junction Temperature Switch RoHS:否 制造商:Omron Electronics 輸出類型:Digital 配置: 準(zhǔn)確性:+/- 1.5 C, +/- 3 C 溫度閾值: 數(shù)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(guān)閉: 安裝風(fēng)格: 封裝 / 箱體: 設(shè)備功能:Temperature and Humidity Sensor
MAX6688AU75L+T 功能描述:板上安裝溫度傳感器 Remote-Junction Temperature Switch RoHS:否 制造商:Omron Electronics 輸出類型:Digital 配置: 準(zhǔn)確性:+/- 1.5 C, +/- 3 C 溫度閾值: 數(shù)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(guān)閉: 安裝風(fēng)格: 封裝 / 箱體: 設(shè)備功能:Temperature and Humidity Sensor
MAX6688AU75L-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(zhǔn)確性:+/- 1.5 C, +/- 3 C 溫度閾值: 數(shù)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(guān)閉: 安裝風(fēng)格: 封裝 / 箱體: 設(shè)備功能:Temperature and Humidity Sensor
MAX6688UA40L 制造商:Maxim Integrated Products 功能描述:LOCAL/REMOTE TEMPERATURE SWITCH IN A UMAX PAC - Rail/Tube
MAX6688UA75H 制造商:Maxim Integrated Products 功能描述:LOCAL/REMOTE TEMPERATURE SWITCH IN A UMAX PAC - Rail/Tube
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