TMP411D datasheet(35/60 Pages) TI2

35 / 60 page

is set to 0 again, the TMP411-Q1 and TMP411D-Q1 resume continuous conversions. A single conversion can be

started by writing to the One-Shot Register when SD = 1.

The AL/TH bit (bit 5) controls whether the ALERT pin functions in ALERT mode or THERM2 mode. If AL/TH =

0, the ALERT pin operates as an interrupt pin. In this mode, the ALERT pin goes low after the set number of

consecutive out-of-limit temperature measurements occurs.

If AL/TH = 1, the ALERT/ THERM2 pin implements a THERM function (THERM2). In this mode, THERM2

functions similarly to the THERM pin except that the local high limit and remote high limit registers are used for

the thresholds. THERM2 goes low when either RHIGH or LHIGH is set.

The temperature range is set by configuring bit 2 of the Configuration Register. Setting this bit low configures

the TMP411-Q1 and TMP411D-Q1 devices for the standard measurement range (0°C to 127°C). Temperature

conversions are stored in the standard binary format. Setting bit 2 high configures the TMP411-Q1 and

TMP411D-Q1 for the extended measurement range (–55°C to 150°C). Temperature conversions are stored

in the extended binary format (see Table 7-1).

The remaining bits of the Configuration Register are reserved and must always be set to 0. The power-on-reset

value for this register is 00h. Table 8-3 summarizes the bits of the Configuration Register.

Note

The TMP411x-Q1/TMP411Dx-Q1 device family is set to the standard temperature range as the

default. Therefore, the device always needs to be configured to the extended temperature range

after power-up if this feature is used.

Table 8-3. Configuration Register Bit Descriptions

CONFIGURATION REGISTER (Read = 03h, Write = 09h, POR = 00h)

BIT

NAME

FUNCTION

POWER-ON RESET VALUE

MASK

0 = ALERT enabled; 1 = ALERT masked

0 = Run; 1 = Shut down

AL/TH

0 = ALERT mode; 1 = THERM mode

4, 3

Reserved

—

Temperature range

0 = 0°C to 127°C; 1 = –55°C to 150°C

1, 0

Reserved

—

8.7 Resolution Register

The RES1 and RES0 bits (resolution bits 1 and 0) of the Resolution Register set the resolution of the local

temperature measurement channel. Remote temperature measurement channel resolution is not affected.

Changing the local channel resolution also affects the conversion time and rate of the TMP411-Q1 only. The

Resolution Register is set by writing to pointer address 1Ah and is read from pointer address 1Ah. Table 8-4

shows the resolution bits for the Resolution Register.

Table 8-4. Resolution Register: Local Channel Programmable Resolution

RESOLUTION REGISTER (Read = 1Ah, Write = 1Ah, POR = 1Ch)

RES1

RES0

RESOLUTION

CONVERSION TIME (TYPICAL)

TMP411-Q1 (Legacy chip)

CONVERSION TIME (TYPICAL)

TMP411-Q1 (New chip)

TMP411D-Q1

9 bits (0.5°C)

12.5ms

17.7ms

10 bits (0.25°C)

25ms

17.7ms

11 bits (0.125°C)

50ms

17.7ms

12 bits (0.0625°C)

100ms

17.7ms

www.ti.com

TMP411-Q1, TMP411D-Q1

SBOS527G – DECEMBER 2010 – REVISED SEPTEMBER 2025

Submit Document Feedback

Product Folder Links: TMP411-Q1 TMP411D-Q1

TMP411D bảng dữ liệu(PDF) 35 Page - Texas Instruments

TMP411D bảng dữ liệu(HTML) 35 Page - Texas Instruments

Html Pages

1 2 3 4 5 6 7 8 9 10 11 12 13 14 15 16 17 18 19 20 21 22 23 24 25 26 27 28 29 30 31 32 33 34 35 36 37 38 39 40 41 42 43 44 45 46 47 48 49 50 51 52 53 54 55 56 57 58 59 60

bảng dữ liệu tải về

Link URL