参数资料
型号: TMP431BDGKT
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: 14/40页
文件大小: 790K
代理商: TMP431BDGKT
SBOS441C
– SEPTEMBER 2009 – REVISED FEBRUARY 2011
Conversion Rate Register
TMP431/32 return to shutdown mode when that
conversion completes. The value of the data sent in
The Conversion Rate Register (pointer address 0Ah)
the write command is irrelevant and is not stored by
controls the rate at which temperature conversions
the
TMP431/32.
When
the
TMP431/32
are
in
are performed. This register adjusts the idle time
shutdown mode, an initial 200ps is required before a
between conversions but not the conversion timing
one-shot command can be given. (Note: When a
itself,
thereby
allowing
the
TMP431/32
power
shutdown command is issued, the TMP431/32 shut
dissipation to be balanced with the temperature
down immediately, aborting the current conversion.)
register update rate. Table 9 shows the conversion
This wait time only applies to the 200ps immediately
rate options and corresponding current consumption.
following shutdown. One-shot commands can be
issued without delay thereafter.
One-Shot Conversions
When the TMP431/32 are in shutdown mode (SD = 1
in the Configuration Register 1), a single conversion
on both channels is started by writing any value to
the One-Shot Start Register, pointer address 0Fh.
This write operation starts one conversion; the
Table 9. Conversion Rate Register
CONVERSION RATE REGISTER (Read = 04h, Write = 0Ah, POR = 07h)
AVERAGE IQ (TYP)
(
μA)
R7
R6
R5
R4
R3
R2
R1
R0
CONVERSION/SEC
VS = 2.7V VS = 5.5V
0
0.0625
11
32
0
1
0.125
17
38
0
1
0
0.25
28
49
0
1
0.5
47
69
0
1
0
1
80
103
0
1
0
1
2
128
155
0
1
0
4
190
220
07h to 0Fh
8
373
413
2009–2011, Texas Instruments Incorporated
21
Product Folder Link(s): TMP431 TMP432
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