TMP112D datasheet(26/46 Pages) TI2

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THigh_Limit

TLow_Limit

Temperature

Conversions

ALERT pin

Polarity = 0b

ALERT pin

Polarity = 1b

2C Read

Temperature

Figure 7-10. Interrupt Mode

7.5.3.4 Fault Queue (F1/F0)

A fault condition exists when the measured temperature exceeds the user-defined limits set in the T(HIGH) and

T(LOW) registers. Additionally, the number of fault conditions required to generate an alert can be programmed

using the fault queue. The fault queue is provided to prevent a false alert as a result of environmental noise. The

fault queue requires consecutive fault measurements to trigger the alert function. Table 7-10 lists the number

of measured faults that can be programmed to trigger an alert condition in the device. For T(HIGH) and T(LOW)

Table 7-10. TMP112-Q1/TMP112D-Q1 Fault Settings

CONSECUTIVE FAULTS

7.5.3.5 Converter Resolution (R1 and R0)

The converter resolution bits, R1 and R0, are read-only bits. The TMP112-Q1/TMP112D-Q1 converter resolution

is set on start up to 11 which sets the temperature register to a 12 bit-resolution.

7.5.3.6 One-Shot (OS)

When the device is in shutdown mode, writing a 1 to the OS bit begins a single temperature conversion. During

the conversion, the OS bit reads 0. The device returns to the SHUTDOWN state at the completion of the single

conversion. For more information on the one-shot conversion mode, see the One-Shot and Conversion Ready

Mode (OS) section.

7.5.3.7 Extended Mode (EM)

The extended mode bit configures the device for normal mode operation (EM = 0) or extended mode operation

(EM = 1). In normal mode, the temperature register and the high and low limit registers use a 12-bit data format.

For more information on the extended mode, see the Extended Mode (EM) section.

TMP112-Q1, TMP112D-Q1

SLOS887G – SEPTEMBER 2014 – REVISED MAY 2025

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Product Folder Links: TMP112-Q1 TMP112D-Q1

TMP112D Datasheet(PDF) 26 Page - Texas Instruments