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INA253 데이터시트(Datasheet) 17 Page - TI store

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부품명 INA253
상세내용  High Voltage, Bidirectional, Zero-Drift, Current-Shunt Monitor with Integrated 2-mΩ Precision Low Inductive Shunt Resistor
PDF  24 Pages
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제조사  TI1 [TI store]
홈페이지  http://www.ti.com
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 17 page
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2.7V to 5.5V
INA253
REF2
VS
OUT
GND
IN-
IN+
REF1
VDD
Time (50ms/div)
-3
0
3
6
9
12
15
Common-Mode Input Signal
INA253A3 Output
17
INA253
www.ti.com
SLOS954 – MAY 2018
Product Folder Links: INA253
Submit Documentation Feedback
Copyright © 2018, Texas Instruments Incorporated
9.2.1.3 Application Curve
Figure 14. Solenoid Drive Current Sense Input and Output Signals
9.2.2 Speaker Enhancements and Diagnostics using Current Sense Amplifier
CLASS-D audio amplifiers in conjunction with the INA253 can provide accurate speaker load current. Speaker
load current can be used to determine speaker diagnostics and can further be expanded to measure key speaker
parameters like speaker coil resistance and speaker's real time ambient temperature.
Figure 15. Current Sensing in a CLASS-D subsystem
9.2.2.1 Design Requirements
Table 3. Design Parameters
DESIGN PARAMETER
EXAMPLE VALUE
Common mode voltage
24 V
Power-supply voltage
5 V
Maximum rms current
5 A
Frequency sweep
20 Hz - 20 Khz




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