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DRV401AMDWPREP Datasheet(PDF) 24 Page - Texas Instruments

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Part # DRV401AMDWPREP
Description  SENSOR SIGNAL CONDITIONING IC FOR CLOSED-LOOP MAGNETIC CURRENT SENSOR
PDF  33 Pages
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Manufacturer  TI [Texas Instruments]
Direct Link  http://www.ti.com
Logo TI - Texas Instruments

DRV401AMDWPREP Datasheet(HTML) 24 Page - Texas Instruments

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BASIC CONNECTION EXAMPLE
Integrator
H−Bridge
Driver
CCdiag
Amp
V = 4
Logic: Timing, Error Detection, and Demagnetize
Power Valid
Bandgap
Reference
V
DD2
GND2
V
DD1
GND1
DRV401
V
OUT
REF
IN
OVER−RANGE
REF
OUT
Probe Coil
Driver and
Comparator
R
7
R
3
R
4
ERROR
+5V
DEMAG
+5V
C
2
C
3
C
4
IS1
IS2
PWM
PWM
V
SW
(PWM is in
phase with IS1.)
GAIN
+5V
I
COMP1
I
COMP2
IA
IN2
IA
IN1
R
1
R
2
+5V
+5V
D
1
D
2
R
6
2.5V
V
SW
Oscillator Reset
10MHz
C
4
+5V
IS2
S2
S1
I
COMP
I
P
Probe Coil
K
2
K
1
Compensation Coil
Primary Winding
Current Sensor Module
Main Core
Probe
Core
R
5
DRV401-EP
SBVS104 – JANUARY 2008............................................................................................................................................................................................... www.ti.com
The circuit shown in Figure 8 offers an axample of a fully-connected current sensor system.
Figure 8. Basic Connection Circuit
24
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Copyright © 2008, Texas Instruments Incorporated
Product Folder Link(s): DRV401-EP



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