SM6611 Datasheet, PDF (2/4 Pages) Nippon Precision Circuits Inc – Miniature High-Precision Temperature Switch IC

BLOCK DIAGRAM
VDD
SM6611 series
TEST1 TEST2 TEST3
Output inverting
temperature detect
Reference
temperature sensor
VSS
Comparator
Output
buffer
OUT
Hysteresis control
PIN DESCRIPTION
Number
1
2
Name
VDD
T1
3
OUT
4
T3
5
VSS
6
T2
I/O
Description
–
Supply voltage
–
Test pin 1. This pin is used for test purposes by NPC. It has a built-in pull-up resistor. Leave
open for normal operation.
Output.
SM6611×AH: Open-drain output. A pull-up resistor of 100kΩ should be connected to this
O
pin. Goes LOW when the switch preset temperature is exceeded.
SM6611×BH: CMOS output. Goes LOW to HIGH when the switch preset temperature is
exceeded.
–
Test pin 3. This pin is used for test purposes by NPC. Connect to VSS for normal operation.
–
Ground
–
Test pin 3. This pin is used for test purposes by NPC. Connect to VSS for normal operation.
NIPPON PRECISION CIRCUITS—2