參數(shù)資料
型號: TPS2481PW
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): 53/56頁
文件大?。?/td> 1381K
代理商: TPS2481PW
SLUS939B – APRIL 2010 – REVISED DECEMBER 2010
www.ti.com
ELECTRICAL CHARACTERISTICS (continued)
over operating free-air temperature range (unless otherwise noted)
PARAMETER
TEST CONDITIONS
MIN
TYP
MAX
UNIT
Input
PGA = x 1
0
±40
PGA = x 2
0
±80
Full-scale current sense
mV
(input) voltage range
PGA = x 4
0
±160
PGA = x 8
0
±320
BRNG = 1
0
32
Bus voltage (input voltage)
V
range
BRNG = 0
0
16
Common-mode rejection
VIN+ = 0 V to 26 V
100
120
dB
CMRR
PGA = x 1
±10
±100
PGA = x 2
±20
±125
Input offset
mV
PGA = x 4
±30
±150
VOS
PGA = x 8
±40
±200
Temp stability
0.1
mV/°C
PSRR
VS = 3 V to 5.5 V
10
mV/V
CSA gain error
±0.04%
GainCSA
Temp stability
10
ppm
IVNP
20
mA
Input bias current
Active mode
IVINM
20 || 320
mA || kΩ
ILEAKAGE
IVNP, IVINM
Power down mode, leakage input current
0.1
±0.5
mA
A/D Converter
Shunt voltage
10
mV
Step Size
1 LSB
Bus voltage
4
mV
Current
Current measurement
Error
±0.2%
±0.5%
Accuracy
Temp drift
Over full range
±1.0%
Voltage
Bus voltage measurement
Error
±0.2%
±0.5%
Accuracy
Temp drift ( -25°C to 85°C )
Over full range
±1.0%
12 Bit
532
586
11 Bit
276
304
TCONV
Conversion time
10 Bit
148
163
ms
9 Bit
84
92
TLOWCONV
Conversion time
Minimum A/D conversion time
4
6
Copyright 2010, Texas Instruments Incorporated
Product Folder Link(s): TPS2480 TPS2481
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