TCN75-3.3MUA Microchip Technology, TCN75-3.3MUA Datasheet - Page 7

• Manufacturer Part Number: TCN75-3.3MUA
• Description: IC TEMP SENSOR SRL 3.3V 8MSOP
• Manufacturer: Microchip Technology

Specifications of TCN75-3.3MUA

• Package / Case: 8-MSOP, Micro8™, 8-uMAX, 8-uSOP,
• Output Type: 2-Wire Serial
• Function: Temp Monitoring System (Sensor)
• Topology: ADC (Sigma Delta), Register Bank
• Sensor Type: Internal
• Sensing Temperature: -55°C ~ 125°C
• Output Alarm: Yes
• Output Fan: No
• Voltage - Supply: 2.7 V ~ 5.5 V
• Operating Temperature: -55°C ~ 125°C
• Mounting Type: Surface Mount
• Temperature Threshold: Programmable
• Full Temp Accuracy: 3 C
• Digital Output - Bus Interface: 2-Wire
• Digital Output - Number Of Bits: 9 bit
• Supply Voltage (max): 5.5 V
• Supply Voltage (min): 2.7 V
• Description/function: 2-Wire Serial Input/Output - Thermal Monitors
• Maximum Operating Temperature: + 125 C
• Minimum Operating Temperature: - 55 C
• Supply Current: 1 mA
• Ic Output Type: Logic
• Sensing Accuracy Range: ± 0.5°C
• Supply Voltage Range: 2.7V To 5.5V
• Sensor Case Style: MSOP
• No. Of Pins: 8
• Filter Terminals: SMD
• Rohs Compliant: Yes
• Accuracy %: 0.5°C
• Lead Free Status / RoHS Status: Lead free / RoHS Compliant
• Lead Free Status / RoHS Status: Lead free / RoHS Compliant, Lead free / RoHS Compliant
• Other names: 158-1003; 158-1003

TCN75
3.6
Comparator/Interrupt Modes
INT/CMPTR behaves differently depending on whether
the TCN75 is in Comparator mode or Interrupt mode.
Comparator mode is designed for simple thermostatic
operation. INT/CMPTR will go active anytime TEMP
exceeds T
. When in Comparator mode, INT/
SET
CMPTR will remain active until TEMP falls below
T
, whereupon it will reset to its inactive state. The
HYST
state of INT/CMPTR is maintained in Shutdown mode
when the TCN75 is in Comparator mode. In Interrupt
mode, INT/CMPTR will remain active indefinitely, even
if TEMP falls below T
, until any register is read via
HYST
the 2-wire bus. Interrupt mode is better suited to inter-
rupt driven microprocessor-based systems. The INT/
CMPTR output may be wire-OR’ed with other interrupt
sources in such systems. Note that a pull-up resistor is
necessary on this pin since it is an open-drain output.
Entering Shutdown mode will unconditionally reset INT/
CMPTR when in Interrupt mode.
© 2006 Microchip Technology Inc.
DS21490C-page 7