Microchip logo
Microchip logo
  • All
  • Products
  • Documents
  • Applications Notes
product primary image

TC621

Status: In Production

Features:

  • User-Programmable Hysteresis and Temperature Set Point
  • Easily Programs with 2 External Resistors
  • Wide Temperature Detection Range: – 40C to +125C(TC620/621CVx)
  • External Thermistor for Remote Sensing Applications (TC621x)
View More
Overview
Documents
Development Environment
Similar Devices
RoHS Information
Buy Now

Device Overview

Summary

TC620 and TC621 are programmable logic output temperature detectors designed for use in thermal management applications. The TC620 features an on-board temperature sensor, while the TC621 connects to an external NTC thermistor for remote sensing applications. Both devices feature dual thermal interrupt outputs (HIGH LIMIT and LOW LIMIT), each of which program with a single external resistor. On the TC620, these outputs are driven active (high) when measured temperature equals the user-programmed limits. The CONTROL (hysteresis) output is driven high when temperature equals the high limit setting, and returns low when temperature falls below the low limit setting. This output can be used to provide simple ON/OFF control to a cooling fan or heater. The TC621 provides the same output functions except that the logical states are inverted. The TC620/621 are usable over a maximum temperature range of – 40C to +125C.

Additional Features
    • User-Programmable Hysteresis and Temperature Set Point
    • Easily Programs with 2 External Resistors
    • Wide Temperature Detection Range: – 40C to +125C(TC620/621CVx)
    • External Thermistor for Remote Sensing Applications (TC621x)
Parametrics
Name
Value
# Temps Monitored
1
Typical Accuracy (°)
1
Max. Accuracy @ 25° (°)
3
Max Input/ Supply Current (µA)
270
Temp. Range (°C)
-40 to +125
Operating Voltage Range (V)
+4.5 to +18
Typ Supply Current (µA)
270
Hardware Shutdown
1
Resistance Error Correction
N/A
Beta Compensation
N/A
Ideality Factor
N/A
Device Description
Temperature Switch

Documents

Jump to:
×

Data Sheet

TC620/621 Data Sheet
02/26/2015
411KB

Application Notes

Download All
AN679 - Temperature Sensing Technologies
08/10/1999
177KB
AN773 - Application Circuits of the TC620/TC621 Solid-State Temperature Sensors
08/16/2004
251KB

Brochures

Analog & Interface Guide (Volume 2)
10/11/2005
1067KB
Quick Guide to Microchip Development Tools
09/04/2018
10494KB
Temperature Sensor Design Guide
12/08/2009
687KB

Design Guides

ADN011 – Flexible Integrated Temp Sensors Lower System Costs
08/18/2004
650KB

Product Line Card

Analog & Interface Product Selector Guide
01/03/2019
4427KB

User Guides

8-Pin SOIC/MSOP/TSSOP/DIP Evaluation Board User's Guide
01/24/2006
1367KB

Development Environment

  • Demo & Evaluation Boards
  • Application Examples
Demo & Evaluation Boards
8-Pin SOIC/MSOP/TSSOP/DIP Evaluation Board
8-Pin SOIC/MSOP/TSSOP/DIP Evaluation Board ( SOIC8EV )

This is a blank PCB that allows the operation of Microchip Technology’s 8-pin devices to be easily evaluated. Each device pin is connected to a pull-up resistor, a pull-down resistor, an in-line resistor, and a loading capacitor. The PCB pads allow through hole or surface mount connectors to be installed to ease connection to the board. Additional passive component footprints are on the...

Learn More
Add To Cart

Similar Devices

Product
Description
Typical Accuracy (º)
Vcc Range
Price 5K
AT30TS00
Digital Temperature Sensor
1.0
+2.7 - +3.6
$0.62
AT30TS74
Digital Temperature Sensor
1
+1.7 - +5.5
$0.47
AT30TS750A
Digital Temperature Sensor
0.5
+1.7 - +5.5
$0.87
AT30TS75A
Digital Temperature Sensor
0.5
+1.7 - +5.5
$0.54
AT30TSE002A
Digital Temperature Sensor
0.5
+2.7 - +3.6
$0.73
AT30TSE002B
Digital Temperature Sensor
0.5
+2.7 - +3.6
$0.73
AT30TSE004A
Digital Temperature Sensor
0.5
+1.7 - +3.6
$0.73
AT30TSE752A
Digital Temperature Sensor
0.5
+1.7 - +5.5
$0.99
AT30TSE754A
Digital Temperature Sensor
0.5
+1.7 - +5.5
$1.07
AT30TSE758A
Digital Temperature Sensor
0.5
+1.7 - +5.5
$1.15
EMC1046
Digital Temperature Sensor
0.25
+3.0 - +3.6
$1.24
EMC1047
Digital Temperature Sensor
0.25
+3.0 - +3.6
$1.35
EMC1072
Digital Temperature Sensor
0.25
+3.0 - +3.6
$0.45
EMC1073
Digital Temperature Sensor
0.25
+3.0 - +3.6
$0.56
EMC1074
Digital Temperature Sensor
0.25
+3.0 - +3.6
$0.73
EMC1182
Digital Temperature Sensor
0.25
+3.0 - +3.6
$0.51
EMC1183
Digital Temperature Sensor
0.25
+3.0 - +3.6
$0.67
EMC1184
Digital Temperature Sensor
0.25
+3.0 - +3.6
$0.79
EMC1186
Digital Temperature Sensor
0.25
+3.0 - +3.6
$0.62
EMC1187
Digital Temperature Sensor
0.25
+3.0 - +3.6
$0.79
EMC1188
Digital Temperature Sensor
0.25
+3.0 - +3.6
$0.90
EMC1402
Digital Temperature Sensor
0.25
+3.0 - +3.6
$0.51
EMC1403
Digital Temperature Sensor
0.25
+3.0 - +3.6
$0.62
EMC1404
Digital Temperature Sensor
0.25
+3.0 - +3.6
$0.79
EMC1412
Digital Temperature Sensor
0.25
+3.0 - +3.6
$0.51
EMC1413
Digital Temperature Sensor
0.25
+3.0 - +3.6
$0.62
EMC1414
Digital Temperature Sensor
0.25
+3.0 - +3.6
$0.79
EMC1422
Digital Temperature Sensor
0.25
+3.0 - +3.6
$0.67
EMC1423
Digital Temperature Sensor
0.25
+3.0 - +3.6
$0.79
EMC1424
Digital Temperature Sensor
0.25
+3.0 - +3.6
$0.90
EMC1428
Digital Temperature Sensor
0.25
+3.0 - +3.6
$0.96
EMC1438
Digital Temperature Sensor
0.25
+3.0 - +3.6
$0.96
EMC1501
Digital Temperature Sensor
0.5
+1.7 - +3.6
 
EMC1813
Digital Temperature Sensor
0.25
+1.62 - +3.60
$0.56
EMC1814
Digital Temperature Sensor
0.25
+1.62 - +3.60
$0.67
EMC1815
Digital Temperature Sensor
0.25
+1.62 - +3.60
$0.79
EMC1822
Digital Temperature Sensor
0.25
+1.62 - +3.60
$0.45
EMC1823
Digital Temperature Sensor
0.25
+1.62 - +3.60
$0.56
EMC1824
Digital Temperature Sensor
0.25
+1.62 - +3.60
$0.67
EMC1825
Digital Temperature Sensor
0.25
+1.62 - +3.60
$0.79
EMC1833
Digital Temperature Sensor
0.25
+1.62 - +3.60
$0.62
EMC1843
Digital Temperature Sensor
0.25
+1.62 - +3.60
$0.62
MCP9501
Temperature Switch
1
+2.7 - +5.5
$0.45
MCP9502
Temperature Switch
1
+2.7 - +5.5
$0.45
MCP9503
Temperature Switch
1
+2.7 - +5.5
$0.45
MCP9504
Temperature Switch
1
+2.7 - +5.5
$0.45
MCP9509
Temperature Switch
0.5
+2.7 - +5.5
$0.62
MCP9510
Temperature Switch
0.5
+2.7 - +5.5
$0.62
MCP9700
Voltage Temperature Sensor
1
+2.3 - +5.5
$0.18
MCP9700A
Voltage Temperature Sensor
1
+2.3 - +5.5
$0.22
MCP9701
Voltage Temperature Sensor
1
+3.1 - +5.5
$0.18
MCP9701A
Voltage Temperature Sensor
1
+3.1 - +5.5
$0.22
MCP9800
Digital Temperature Sensor
0.5
+2.7 - +5.5
$0.86
MCP9801
Digital Temperature Sensor
0.5
+2.7 - +5.5
$0.81
MCP9802
Digital Temperature Sensor
0.5
+2.7 - +5.5
$0.91
MCP9803
Digital Temperature Sensor
0.5
+2.7 - +5.5
$0.87
MCP9804
Digital Temperature Sensor
0.25
+2.7 - +5.5
$1.21
MCP9805
Digital Temperature Sensor
2
+3.0 - +3.6
$0.62
MCP9808
Digital Temperature Sensor
0.25
+2.7 - +5.5
$0.84
MCP98242
Digital Temperature Sensor
2
+3.0 - +3.6
 
MCP98243
Digital Temperature Sensor
0.5
+3.0 - +3.6
$0.73
MCP98244
Digital Temperature Sensor
0.2
+2.2 - +3.6
$0.73
MCP9843
Digital Temperature Sensor
1.0
+2.7 - +3.6
$0.62
MCP9844
Digital Temperature Sensor
0.2
+1.7 - +3.6
$0.65
MCP9902
Digital Temperature Sensor
0.25
+3.0 - +3.6
$0.46
MCP9903
Digital Temperature Sensor
0.25
+3.0 - +3.6
$0.57
MCP9904
Digital Temperature Sensor
0.25
+3.0 - +3.6
$0.72
MIC184
Digital Temperature Sensor
1
2.7 - 5.5
$1.24
MIC280
Digital Temperature Sensor
1
3 - 3.6
$0.46
MIC281
Digital Temperature Sensor
1
3 - 3.6
$0.39
MIC284
Digital Temperature Sensor
1
2.7 - 5.5
$0.63
MIC384
Digital Temperature Sensor
1
2.7 - 5.5
$0.80
TC1046
Voltage Temperature Sensor
0.5
+2.7 - +4.4
$0.42
TC1047
Voltage Temperature Sensor
0.5
+2.7 - +4.4
$0.42
TC1047A
Voltage Temperature Sensor
0.5
+2.5 - +5.5
$0.45
TC620
Temperature Switch
1
+4.5 - +18
$0.87
TC621
Temperature Switch
1
+4.5 - +18
$0.87
TC622
Temperature Switch
1
+4.5 - +18
$0.75
TC623
Temperature Switch
1
+2.7 - +4.5
$1.01
TC624
Temperature Switch
1
+2.7 - +4.5
$0.91
TC6501
Temperature Switch
0.5
+2.7 - +5.5
$0.53
TC6502
Temperature Switch
0.5
+2.7 - +5.5
$0.53
TC6503
Temperature Switch
0.5
+2.7 - +5.5
$0.53
TC6504
Temperature Switch
0.5
+2.7 - +5.5
$0.53
TC72
Digital Temperature Sensor
0.5
+2.7 - +5.5
$0.66
TC74
Digital Temperature Sensor
0.5
+2.7 - +5.5
$0.62
TC77
Digital Temperature Sensor
0.5
+2.7 - +5.5
$0.66
TCN75
Digital Temperature Sensor
0.5
+2.7 - +5.5
$0.88
TCN75A
Digital Temperature Sensor
0.5
+2.7 - +5.5
$0.51

RoHS Information

Part Number
Device Weight (g)
Shipping Weight (Kg)
Lead Count
Package Type
Package Width
Solder Composition
JEDEC Indicator
RoHS
China EFUP
TC621CCPA
0.486700
0.900000
8
PDIP
.300in
Matte Tin
e3
TC621CEPA
0.486700
0.900000
8
PDIP
.300in
Matte Tin
e3
TC621HCPA
0.486700
0.900000
8
PDIP
.300in
Matte Tin
e3
TC621HEPA
0.486700
0.900000
8
PDIP
.300in
Matte Tin
e3
TC621CVOA713
0.078000
0.230303
8
SOIC
.150In(3.90mm)
Matte Tin
e3
TC621CVOA
0.078000
0.250000
8
SOIC
.150In(3.90mm)
Matte Tin
e3
TC621CVOA-VAO
0.078000
0.250000
8
SOIC
.150In(3.90mm)
Matte Tin
e3
TC621HEOA
0.078000
0.250000
8
SOIC
.150In(3.90mm)
Matte Tin
e3
TC621HEOA713
0.078000
0.230303
8
SOIC
.150In(3.90mm)
Matte Tin
e3
TC621HCOA
0.078000
0.250000
8
SOIC
.150In(3.90mm)
Matte Tin
e3
TC621HCOA713
0.078000
0.230303
8
SOIC
.150In(3.90mm)
Matte Tin
e3
TC621CEOA
0.078000
0.250000
8
SOIC
.150In(3.90mm)
Matte Tin
e3
TC621CEOA713
0.078000
0.230303
8
SOIC
.150In(3.90mm)
Matte Tin
e3
TC621CCOA
0.078000
0.250000
8
SOIC
.150In(3.90mm)
Matte Tin
e3
TC621CCOA713
0.078000
0.230303
8
SOIC
.150In(3.90mm)
Matte Tin
e3
TC6215TG-G
0.074300
0.172424
8
SOIC
3.90mm(.150in)
Matte Tin
e3
To see a complete listing of RoHS data for this device, please Click here
Shipping Weight = Device Weight + Packing Material weight. Please contact sales office if device weight is not available.

Buy from the Microchip Store

Grid
View
Table
View
Filter:
Apply
Clear
Only show products with samples
Product
Leads
Package Type
Temp Range
Packing Media
5K Pricing
Buy