参数资料
型号: TMP431ADGKR
厂商: TEXAS INSTRUMENTS INC
元件分类: 模拟信号调理
英文描述: SPECIALTY ANALOG CIRCUIT, PDSO8
封装: GREEN, PLASTIC, MSOP-8
文件页数: 8/40页
文件大小: 790K
代理商: TMP431ADGKR
SBOS441C
– SEPTEMBER 2009 – REVISED FEBRUARY 2011
The local temperature high limit is obtained by
two-byte read command from pointer address 15h.
reading the high byte from pointer address 05h and
The
power-on
reset
value
of
the
Remote
the low byte from pointer address 16h for the
Temperature High Limit Register is 55h/00h (+85
°C in
TMP4341 and 3Dh for the TMP432, or by using a
standard temperature mode; +21
°C in extended
two-byte read command from pointer address 05h.
temperature mode).
The power-on reset value of the local temperature
The remote temperature2 low limit for the TMP432 is
high limit is 55h/00h (+85
°C in standard temperature
set by writing the high byte to pointer address 16h
mode; +21
°C in extended temperature mode).
and writing the low byte to pointer address 18h, or by
Similarly, the local temperature low limit is set by
using a two-byte write to pointer address 16h. The
writing the high byte to pointer address 0Ch and
remote temperature low limit is read by reading the
writing the low byte to pointer address 17h for the
high byte from pointer address 16h and the low byte
TMP431 and 3Eh for the TMP432, or by using a
from pointer address 18h, or by using a two-byte read
single two-byte write command to pointer address
from pointer address 16h. The power-on reset value
0Ch. The local temperature low limit is read by
of the Remote Temperature Low Limit Register is
reading the high byte from pointer address 06h and
00h/00h (0
°C in standard temperature mode; –64°C
the low byte from pointer address 17h and 3Eh for
in extended mode).
the TMP432, or by using a two-byte read from pointer
The TMP431/32 also have a THERM limit register for
address 06h. The power-on reset value of the local
both the local and the remote channels. These
temperature low limit register is 00h/00h (0
°C in
registers are eight bits and allow for THERM limits set
standard temperature mode;
–64°C in extended
to 1
°C resolution. The local channel THERM limit is
mode).
set by writing to pointer address 20h. The remote
The remote temperature high limit for the TMP431
channel THERM limit is set by writing to pointer
(remote temperature1 high limit for the TMP432) is
address 19h. The remote channel THERM2 limit for
set by writing the high byte to pointer address 0Dh
the TMP432 is set by writing to pointer address 1Ah.
and writing the low byte to pointer address 13h, or by
The local channel THERM limit is obtained by reading
using a two-byte write command to pointer address
from pointer address 20h; the remote channel
0Dh. The remote temperature high limit is obtained
THERM limit is read by reading from pointer address
by reading the high byte from pointer address 07h
19h. The remote channel THERM2 limit is read by
and the low byte from pointer address 13h, or by
reading from pointer address 1Ah. The power-on
using a two-byte read command from pointer address
reset value of the THERM limit registers is 55h for the
07h. The power-on reset value of the Remote
TMP431A, TMP431B, TMP432A, and TMP432B
Temperature High Limit Register is 55h/00h (+85
°C in
(+85
°C in standard temperature mode; +21°C in
standard temperature mode; +21
°C in extended
extended temperature mode). The power-on reset
temperature mode).
value of the THERM limit registers is 69h for the
The remote temperature low limit for the TMP431
TMP431C
and
TMP431D
(+105
°C
in
standard
(remote temperature1 low limit for the TMP432) is set
temperature mode; +41
°C in extended temperature
by writing the high byte to pointer address 0Eh and
mode). The THERM limit comparators also have
writing the low byte to pointer address 14h, or by
hysteresis. The hysteresis of both comparators is set
using a two-byte write to pointer address 0Eh. The
by writing to pointer address 21h. The hysteresis
remote temperature low limit is read by reading the
value is obtained by reading from pointer address
high byte from pointer address 08h and the low byte
21h. The value in the Hysteresis Register is an
from pointer address 14h, or by using a two-byte read
unsigned number (always positive). The power-on
from pointer address 08h. The power-on reset value
reset value of this register is 0Ah (+10
°C).
of the Remote Temperature Low Limit Register is
Whenever changing between standard and extended
00h/00h (0
°C in standard temperature mode; –64°C
temperature ranges, be aware that the temperatures
in extended mode).
stored in the temperature limit registers are NOT
The remote temperature2 high limit for the TMP432 is
automatically reformatted to correspond to the new
set by writing the high byte to pointer address 15h
temperature range format. These values must be
and writing the low byte to pointer address 17h, or by
reprogrammed in the appropriate binary or extended
using a two-byte write command to pointer address
binary format.
15h. The remote temperature high limit is obtained by
reading the high byte from pointer address 15h and
the low byte from pointer address 17h, or by using a
16
2009–2011, Texas Instruments Incorporated
Product Folder Link(s): TMP431 TMP432
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