ADT7320UCPZ AD [Analog Devices], ADT7320UCPZ Datasheet - Page 11

• Manufacturer Part Number: ADT7320UCPZ
• Manufacturer: AD [Analog Devices]

Preliminary Technical Data
CT and INT Operation in One-Shot Mode
See Figure 13 for more information on one-shot CT pin
operation for T
limits is exceeded. Note that in interrupt mode, a read from
any register resets the INT and CT pins.
For the INT pin in comparator mode, if the temperature drops
below the T
value, a write to the one-shot bits (Bit 5 and Bit 6 of the
configuration register, Register Address 0x01) resets the INT pin.
HIGH
CRIT
− T
overtemperature events when one of the
HYST
value or goes above the T
POLARITY = ACTIVE HIGH
POLARITY = ACTIVE LOW
*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.
CT PIN
CT PIN
149°C
148°C
147°C
146°C
145°C
144°C
143°C
142°C
141°C
140°C
TEMPERATURE
LOW
+ T
HYST
Figure 13. One-Shot CT Pin
BIT 5 AND BIT 6 OF
CONFIGURATION
Rev. PrA | Page 11 of 24
REGISTER.*
WRITE TO
BIT 5 AND BIT 6 OF
CONFIGURATION
For the CT pin in the comparator mode, if the temperature drops
below the T
and Bit 6 of the configuration register, Register Address 0x01)
resets the CT pin, see Figure 13.
Note that when using one-shot mode, ensure that the refresh
rate is appropriate to the application being used.
REGISTER.*
WRITE TO
CRIT
BIT 5 AND BIT 6 OF
CONFIGURATION
REGISTER.*
WRITE TO
− T
HYST
T
T
value, a write to the one-shot bits (Bit 5
CRIT
CRIT – T HYST
TIME
ADT7320