数据搜索系统,热门电子元器件搜索
  Chinese  ▼
ALLDATASHEETCN.COM

X  

TC620XEPA 数据表(PDF) 5 Page - Microchip Technology

部件名 TC620XEPA
功能描述  5V Dual Trip Point Temperature Sensors
Download  14 Pages
Scroll/Zoom Zoom In 100%  Zoom Out
制造商  MICROCHIP [Microchip Technology]
网页  http://www.microchip.com
标志 MICROCHIP - Microchip Technology

TC620XEPA 数据表(HTML) 5 Page - Microchip Technology

  TC620XEPA Datasheet HTML 1Page - Microchip Technology TC620XEPA Datasheet HTML 2Page - Microchip Technology TC620XEPA Datasheet HTML 3Page - Microchip Technology TC620XEPA Datasheet HTML 4Page - Microchip Technology TC620XEPA Datasheet HTML 5Page - Microchip Technology TC620XEPA Datasheet HTML 6Page - Microchip Technology TC620XEPA Datasheet HTML 7Page - Microchip Technology TC620XEPA Datasheet HTML 8Page - Microchip Technology TC620XEPA Datasheet HTML 9Page - Microchip Technology Next Button
Zoom Inzoom in Zoom Outzoom out
 5 / 14 page
background image
© 2006 Microchip Technology Inc.
DS21439C-page 5
TC620/TC621
3.0
DETAILED DESCRIPTION
The TC620 has a positive temperature coefficient tem-
perature sensor and a dual threshold detector. Temper-
ature set point programming is accomplished with
external resistors from the HIGH SET and LOW SET
inputs to VDD. The HIGH LIMIT and LOW LIMIT outputs
remain low as long as measured temperature is below
set point values. As measured temperature increases,
the LOW LIMIT output is driven high when temperature
equals the LOW SET set point (±3°C max). If tempera-
ture continues to climb, the HIGH LIMIT output is driven
high when temperature equals the HIGH SET set point
(Figure 3-1). The CONTROL (hysteresis) output is
latched in its active state at the temperature specified
by the HIGH SET resistor. CONTROL is maintained
active until temperature falls to the value specified by
the LOW SET resistor.
FIGURE 3-1:
TC620/TC621 Input vs.
Output Logic
3.1
Programming the TC620
The resistor values to achieve the desired trip point
temperatures on HIGH SET and LOW SET are
calculated using Equation 3-1:
EQUATION 3-1:
For example, a 50°C setting on either the HIGH SET
or LOW SET input is calculated using Equation 3-2 as
follows:
EQUATION 3-2:
Care must be taken to ensure the LOW SET program-
ming resistor is a smaller value than the HIGH SET
programming resistor. Failure to do this will result in
erroneous operation of the CONTROL output.
Care must also be taken to ensure the LOW SET
temperature setting is at least 5°C lower than the HIGH
SET temperature setting.
Figure 3-2 can help the user obtain an estimate of the
external resistor values required for the desired LOW
SET and HIGH SET trip points.
FIGURE 3-2:
TC620 Sense Resistors vs.
Trip Temperature
3.2
Built-in Hysteresis
To
prevent
output
“chattering”
when
measured
temperature is at (or near) the programmed trip point
values, the LOW SET and HIGH SET inputs each have
built-in hysteresis of -2°C below the programmed
settings (Figure 3-3).
FIGURE 3-3:
Built-In Hysteresis on Low
Limit and High Limit Outputs
As shown, the outputs remain in their active state
(hysteresis) until temperature falls an additional 2°C
below the user’s setting.
Low Set Point
High Set Point
Low Limit Output
High Limit Output
Control Output (Cool Option
Control Output (Heat Option)
Temperature
RTRIP = 0.5997 x T
2.1312
Where:
RTRIP = Programming resistor in Ohms
T = The desired trip point temperature in degrees
Kelvin.
RSET = 0.5997 x ((50 + 273.15)
2.1312) = 133.6 k
Ω
TEMPERATURE (°C)
-55
-35
-15
5
25
45
65
85
105
125
50
100
150
200
250
Set Point
(Set Point 2°C)
High Limit
or Low Limit
Output


类似零件编号 - TC620XEPA

制造商部件名数据表功能描述
logo
Microchip Technology
TC620XEPA MICROCHIP-TC620XEPA Datasheet
450Kb / 14P
   5V, Dual Trip Point Temperature Sensors
2012
TC620XEPA MICROCHIP-TC620XEPA Datasheet
195Kb / 16P
   5V, Dual Trip Point Temperature Sensors
2001-2012 11/29/12
More results

类似说明 - TC620XEPA

制造商部件名数据表功能描述
logo
Microchip Technology
TC620 MICROCHIP-TC620_13 Datasheet
195Kb / 16P
   5V, Dual Trip Point Temperature Sensors
2001-2012 11/29/12
TC620 MICROCHIP-TC620_15 Datasheet
400Kb / 20P
   5V, Dual Trip Point Temperature Sensors
01/27/15
TC620 MICROCHIP-TC620 Datasheet
450Kb / 14P
   5V, Dual Trip Point Temperature Sensors
2012
logo
TelCom Semiconductor, I...
TC620 TELCOM-TC620 Datasheet
75Kb / 6P
   5V, DUAL TRIP POINT TEMPERATURE SENSORS
logo
Microchip Technology
TC623 MICROCHIP-TC623_13 Datasheet
141Kb / 12P
   3V, Dual Trip Point Temperature Sensor
11/29/12 2001-2012
TC623 MICROCHIP-TC623_06 Datasheet
239Kb / 12P
   3V, Dual Trip Point Temperature Sensor
2006
logo
ON Semiconductor
MC623 ONSEMI-MC623 Datasheet
71Kb / 4P
   3V, Dual Trip Point Temperature Sensor
February, 2000 ??Rev. 0
logo
Microchip Technology
TC623 MICROCHIP-TC623 Datasheet
422Kb / 12P
   3V, Dual Trip Point Temperature Sensor
2002
logo
TelCom Semiconductor, I...
TC623 TELCOM-TC623 Datasheet
41Kb / 3P
   3V, DUAL TRIP POINT TEMPERATURE SENSOR
logo
ON Semiconductor
MC642.REV3 ONSEMI-MC642.REV3 Datasheet
65Kb / 5P
   3.0 V, Dual Trip Point Temperature Sensor
February, 2003 - Rev. 3
More results


Html Pages

1 2 3 4 5 6 7 8 9 10 11 12 13 14


数据表 下载

Go To PDF Page


链接网址




隐私政策
ALLDATASHEETCN.COM
ALLDATASHEET是否为您带来帮助?  [ DONATE ] 

关于 Alldatasheet   |   广告服务   |   联系我们   |   隐私政策   |   链接交换   |   制造商名单
All Rights Reserved©Alldatasheet.com


Mirror Sites
English : Alldatasheet.com  |   English : Alldatasheet.net  |   Chinese : Alldatasheetcn.com  |   German : Alldatasheetde.com  |   Japanese : Alldatasheet.jp
Russian : Alldatasheetru.com  |   Korean : Alldatasheet.co.kr  |   Spanish : Alldatasheet.es  |   French : Alldatasheet.fr  |   Italian : Alldatasheetit.com
Portuguese : Alldatasheetpt.com  |   Polish : Alldatasheet.pl  |   Vietnamese : Alldatasheet.vn
Indian : Alldatasheet.in  |   Mexican : Alldatasheet.com.mx  |   British : Alldatasheet.co.uk  |   New Zealand : Alldatasheet.co.nz
Family Site : ic2ic.com  |   icmetro.com