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參數(shù)資料
| 型號： | MAX6509CAUK-T |
| 廠商： | MAXIM INTEGRATED PRODUCTS INC |
| 元件分類： | 模擬信號調(diào)理 |
| 英文描述： | Resistor-Programmable SOT Temperature Switches |
| 中文描述： | SPECIALTY ANALOG CIRCUIT, PDSO5 |
| 封裝： | MO-178AA, SOT-23, 5 PIN |
| 文件頁數(shù)： | 6/8頁 |
| 文件大小： | 141K |
| 代理商： | MAX6509CAUK-T |
M
Resistor-Programmable
SOT Temperature Switches
6
_______________________________________________________________________________________
Applications Information
Thermal Considerations
The MAX6509/MAX6510 supply current is typically
32μA. When used to drive high-impedance loads, the
devices dissipate negligible power; therefore, the die
temperature is essentially the same as the package
temperature. The key to accurate temperature monitor-
ing is good thermal contact between the MAX6509/
MAX6510 package and the device being monitored. In
some applications, the SOT23-5 and SOT23-6 pack-
ages may be small enough to fit underneath a socketed
μP, allowing the device to monitor the μP’s temperature
directly. Use the monitor’s output to reset the μP, assert
an interrupt, or trigger an external alarm. Accurate tem-
perature monitoring depends on the thermal resistance
between the device being monitored and the
MAX6509/MAX6510 die.
The rise in die temperature due to self-heating is given
by the following formula:
T
J
= P
DISS
·
θ
JA
where P
DISS
is the power dissipated by the
MAX6509/MAX6510, and
θ
JA
is the package’s thermal
resistance. The typical thermal resistance is 115°C/W
for the SOT23-6 package. To limit the effects of self-
heating, minimize the output currents. For example, if
the MAX6510 sinks 5mA, the output voltage is guaran-
teed to be less than 0.3V; therefore, an additional
1.5mW of power is dissipated within the IC. This corre-
sponds to a 0.173°C shift in the die temperature in the
SOT23-6.
Temperature-Window Detector
The MAX6509/MAX6510 temperature switch outputs
assert when the die temperature is outside the pro-
grammed range. Combining the outputs of a set-cold
and a set-hot device creates an over/undertemperature
detector. The MAX6509/MAX6510 are designed to form
two complementary pairs, each containing one cold trip
point output and one hot trip point output. The assertion
of either output alerts the system to an out-of-range tem-
perature. The MAX6510 push-pull output stages can be
ORed to produce a thermal out-of-range alarm. More
favorably, a MAX6509HAUK-T and MAX6509CAUK-T
can be directly wire-ORed with a single external resis-
tor to accomplish the same task (Figure 5).
The temperature window (alarms or detectors as in
Figure 5) can be used to accurately determine when a
device’s temperature falls out of a programmed range,
for example -3°C to +75°C as shown in Figure 5. The
thermal overrange signal can be used to assert a ther-
MAX6510
+5V
OUT
GND
V
CC
OUTSET
R
SET
SET
HYST
μ
P
FAN
HEAT
V
CC
THYST = 2
°
C
SET HOT
OUT
OUT
TEMPERATURE
MAX6509H
MAX6510C
OUTSET = GND
SET COLD
98
°
C
100
°
C
100
°
C
98
°
C
-38
°
C
-40
°
C
-38
°
C
-40
°
C
Figure 3. Overtemperature Fan Control
Figure 4. Temperature Response
MAX6509
+3.3V
GND
SET
HYST
V
CC
μ
P
SHUTDOWN
HEAT
V
CC
R
PULL-UP
100k
R
SET
OUT
INT
OR
RESET
Figure 2. Microprocessor Alarm/Reset
相關(guān)PDF資料 |
PDF描述 |
|---|---|
| MAX6509-MAX6510 | Resistor-Programmable SOT Temperature Switches |
| MAX6509HAUK-T | Resistor-Programmable SOT Temperature Switches |
| MAX6511UT___-T | Triac; Thyristor Type:Standard; Peak Repetitive Off-State Voltage, Vdrm:800V; On-State RMS Current, IT(rms):35A; Gate Trigger Current (QI), Igt:50mA; Current, It av:35A; Forward Current:35A; Gate Trigger Current Max, Igt:50mA RoHS Compliant: Yes |
| MAX6510 | 8-Bit Shift Register 20-SOIC -40 to 125 |
| MAX6511 | Low-Cost, Remote SOT Temperature Switches |
相關(guān)代理商/技術(shù)參數(shù) |
參數(shù)描述 |
|---|---|
| MAX6509CAZK | 制造商:Rochester Electronics LLC 功能描述: 制造商:Maxim Integrated Products 功能描述: |
| MAX6509CAZK/V+T | 功能描述:板上安裝溫度傳感器 Resistor-Prog Temperature Switch RoHS:否 制造商:Omron Electronics 輸出類型:Digital 配置: 準確性:+/- 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: 安裝風格: 封裝 / 箱體: 設(shè)備功能:Temperature and Humidity Sensor |
| MAX6509CAZK-T | 制造商:Rochester Electronics LLC 功能描述: 制造商:Maxim Integrated Products 功能描述: |
| MAX6509HAUK | 制造商:Maxim Integrated Products 功能描述:TEMPERATURE SWITCH WITH RESISTOR-PROGRAMMABLE - Bulk |
| MAX6509HAUK+ | 制造商:Maxim Integrated Products 功能描述:TEMP SENSOR ANLG 5PIN SOT-23 - Rail/Tube |
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