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DRV401AIDWP Datasheet(PDF) 5 Page - Texas Instruments

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Part # DRV401AIDWP
Description  Sensor Signal Conditioning IC for Closed-Loop Magnetic Current Sensor
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Manufacturer  TI1 [Texas Instruments]
Direct Link  http://www.ti.com
Logo TI1 - Texas Instruments

DRV401AIDWP Datasheet(HTML) 5 Page - Texas Instruments

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DRV401
SBVS070B − JUNE 2006 − REVISED MAY 2009
www.ti.com
5
PIN CONFIGURATIONS
Top View
RGW
Top View
DWP
ERROR
DEMAG
GAIN
REF
OUT
REF
IN
V
DD1
OVER−RANGE
CCdiag
V
DD2
I
COMP1
Exposed
Thermal Pad
on Underside,
Connect
to GND1
1
2
3
4
5
15
14
13
12
11
QFN−20 (5mm x 5mm)
PWM
PWM
ERROR
DEMAG
GAIN
REF
OUT
REF
IN
V
OUT
IA
IN2
IA
IN1
IS1
GND1
IS2
V
DD1
OVER−RANGE
CCdiag
V
DD2
I
COMP1
I
COMP2
GND2
1
2
3
4
5
6
7
8
9
10
20
19
18
17
16
15
14
13
12
11
Wide−Body SO−20
Exposed
Thermal Pad
on Underside,
Connect
to GND1
PIN ASSIGNMENTS
NAME
RGW
DWP
DESCRIPTION
ERROR
1
3
Error flag: open-drain output, see the Error Conditions section.
DEMAG
2
4
Control input, see the Demagnetization section.
GAIN
3
5
Control input for open-loop gain: low = normal, high = −8dB.
REFOUT
4
6
Output for internal 2.5V reference voltage.
REFIN
5
7
Input for zero reference to differential amplifier.
VOUT
6
8
Output for differential amplifier.
IAIN2
7
9
Noninverting input of differential amplifier.
IAIN1
8
10
Inverting input of differential amplifier.
GND2
9
11
Ground connection. Connect to GND1.
ICOMP2
10
12
Output 2 of compensation coil driver.
ICOMP1
11
13
Output 1 of compensation coil driver.
VDD2
12
14
Supply voltage. Connect to VDD1.
CCdiag
13
15
Control input for wire-break detection: high = enable.
OVER−RANGE
14
16
Open-drain output for over-range indication: low = over-range.
VDD1
15
17
Supply voltage.
IS2
16
18
Probe connection 2.
GND1
17
19
Ground connection.
IS1
18
20
Probe connection 1.
PWM
19
1
PWM output from probe circuit (inverted).
PWM
20
2
PWM output from probe circuit.
Exposed Thermal Pad
Connect to GND1.


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