High-Voltage Hysteresis Selectable Temperature Switch
RT9726
High-Voltage Hysteresis Selectable Temperature Switch
General Description
The RT9726 is a temperature switch wi...
Description
RT9726
High-Voltage Hysteresis Selectable Temperature Switch
General Description
The RT9726 is a temperature switch with wide input voltage range. The over-temperature threshold point is generated by a negative temperature coefficient (NTC) thermistor and a setting resistor. The RT9726 provides an active-low, opendrain logic output. OT goes LOW when the NTC pin voltage is lower than 50% of the REF voltage threshold. The RT9726 provides the selectable hysteresis mode that can be set by the EN pin Input voltage. The IC is available in SC-70-6 package.
Ordering Information
RT9726 Package Type U6 : SC-70-6 Lead Plating System G : Green (Halogen Free and Pb Free)
Note : Richtek products are :
` RoHS compliant and compatible with the current requirements of IPC/JEDEC J-STD-020.
` Suitable for use in SnPb or Pb-free soldering processes.
Marking Information
Features
z Wide Input Voltage Range : 4.75V to 25V z 0.5μA Shutdown Current z 2 Selectable Hysteresis Threshold z Reference Output for Thermal Threshold Setting z Open-drain Logic Output z RoHS Compliant and Halogen Free
Applications
z Notebook Temperature Monitoring z Microprocessor Thermal Management z Temperature Control z Fan Control z Electronic System Protection
Pin Configurations
(TOP VIEW)
EN REF OT
65 4
23
VIN GND NTC
SC-70-6
A1=W
A1= : Product Code W : Date code
Typical Application Circuit
5V
100k
VIN 4.75V to 25V
Chip Enable 3.3V
1 VIN
OT 4
C1 0.1µF
6
RT9726 REF 5
EN
2 GND
NTC 3
System SHDN#
R1 570
Thermi...
Similar Datasheet