ADT7310 查看數據表（PDF） - Analog Devices

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ADT7310

±0.5°C Accurate, 16-Bit Digital SPI Temperature Sensor

Analog Devices 

Data Sheet

ADT7310

CT and INT Operation in One-Shot Mode

See Figure 15 for more information on one-shot CT pin

operation for TCRIT overtemperature events when one of the

limits is exceeded. Note that in interrupt mode, a read from

any register resets the INT and CT pins.

For the INT pin in the comparator mode, if the temperature

drops below the THIGH – THYST value or goes above the TLOW +

THYST value, a write to the one-shot bits (Bit 5 and Bit 6 of the

configuration register, Register Address 0x01) resets the INT pin.

TEMPERATURE

149°C

148°C

147°C

146°C

145°C

144°C

143°C

142°C

141°C

140°C

CT PIN

POLARITY = ACTIVE LOW

For the CT pin in the comparator mode, if the temperature

drops below the TCRIT – THYST value, a write to the one-shot

bits (Bit 5 and Bit 6 of the configuration register, Register

Address 0x01) resets the CT pin; see Figure 15.

Note that when using one-shot mode, ensure that the refresh

rate is appropriate to the application being used.

TCRIT

TCRIT – THYST

CT PIN

POLARITY = ACTIVE HIGH

TIME

WRITE TO

BIT 5 AND BIT 6 OF

CONFIGURATION

REGISTER.*

WRITE TO

BIT 5 AND BIT 6 OF

CONFIGURATION

REGISTER.*

WRITE TO

BIT 5 AND BIT 6 OF

CONFIGURATION

REGISTER.*

*THERE IS A 240ms DELAY BETWEEN WRITING TO THE CONFIGURATION REGISTER TO START

A STANDARD ONE-SHOT CONVERSION AND THE CT PIN GOING ACTIVE. THIS IS DUE TO THE

CONVERSION TIME. THE DELAY IS 60ms IN THE CASE OF A ONE-SHOT CONVERSION.

Figure 15. One-Shot CT Pin

Rev. A | Page 11 of 24

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