參數(shù)資料
型號: TPS2480PW
廠商: TEXAS INSTRUMENTS INC
元件分類: 電源管理
英文描述: POWER SUPPLY SUPPORT CKT, PDSO20
封裝: GREEN, PLASTIC, TSSOP-20
文件頁數(shù): 41/56頁
文件大?。?/td> 1381K
代理商: TPS2480PW
SLUS939B – APRIL 2010 – REVISED DECEMBER 2010
www.ti.com
SADC:
SADC Shunt ADC Resolution/Averaging
Bits 3–6
These bits adjust the Shunt ADC resolution (9-, 10-, 11-, or 12-bit) or set the number of samples used when
averaging results for the Shunt Voltage Register (01h).
BADC (Bus) and SADC (Shunt) ADC resolution/averaging and conversion time settings are shown in Table 6.
Table 6. ADC Settings(1)
ADC4
ADC3
ADC2
ADC1
MODE/SAMPLES
CONVERSION TIME
0
X(2)
0
9-bit
84 ms
0
X(2)
0
1
10-bit
148 ms
0
X(2)
1
0
11-bit
276 ms
0
X(2)
1
12-bit
532 ms
1
0
12-bit
532 ms
1
0
1
2
1.06 ms
1
0
1
0
4
2.13 ms
1
0
1
8
4.26 ms
1
0
16
8.51 ms
1
0
1
32
17.02 ms
1
0
64
34.05 ms
1
128
68.10 ms
(1)
Shaded values are default.
(2)
X = Don't care.
MODE:
Operating Mode
Bits 0–2
Selects continuous, triggered, or power-down mode of operation. These bits default to continuous shunt and bus
measurement mode. The mode settings are shown in Table 7.
Table 7. Mode Settings(1)
MODE3
MODE2
MODE1
MODE
0
Power-down
0
1
Shunt voltage, triggered
0
1
0
Bus voltage, triggered
0
1
Shunt and bus, triggered
1
0
ADC off (disabled)
1
0
1
Shunt voltage, continuous
1
0
Bus voltage, continuous
1
Shunt and bus, continuous
(1)
Shaded values are default.
46
Copyright 2010, Texas Instruments Incorporated
Product Folder Link(s): TPS2480 TPS2481
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