SM6611 Nippon Precision Circuits Inc, SM6611 Datasheet - Page 2

• Manufacturer Part Number: SM6611
• Description: Miniature High-Precision Temperature Switch IC
• Manufacturer: Nippon Precision Circuits Inc

BLOCK DIAGRAM
PIN DESCRIPTION
Number
1
2
3
4
5
6
Name
VDD
OUT
VSS
VDD
T1
T3
T2
VSS
temperature sensor
temperature detect
Output inverting
Reference
I/O
O
–
–
–
–
–
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 100k Ω should be connected to this
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.
TEST1
SM6611 series
Comparator
Hysteresis control
TEST2
TEST3
Description
Output
buffer
NIPPON PRECISION CIRCUITS—2
OUT