DRV401AIDWPR datasheet(6/36 Pages) TI1

Part #	DRV401AIDWPR

Description	Sensor Signal Conditioning IC for Closed-Loop Magnetic Current Sensor

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Manufacturer	TI1 [Texas Instruments]

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DRV401

SBVS070B − JUNE 2006 − REVISED MAY 2009

www.ti.com

6

TYPICAL CHARACTERISTICS

At TA = +25°C and VDD1 = VDD2 = +5V with external 100kHz filter BW, unless otherwise noted.

0.04

0.03

0.02

0.01

0

−0.01

−0.02

−0.03

−0.04

4.3

4.1

4.5

4.7

4.9

5.1

5.3

5.5

5.7

5.9

6.1

DRV401 AND SENSOR:

OFFSET vs SUPPLY VOLTAGE

V

DD (V)

M4645−X211

M4645−X080

100

10

0.1

1

10

100

1k

10k

100k

DRV401 AND SENSOR:

OUTPUT VOLTAGE NOISE DENSITY

(Sensor M4645−X080, R

SHUNT =10Ω,Mode=Low)

Frequency (Hz)

60Hz Line Frequency and Multiples

(measured in a 60Hz environment)

Divided Field

Probe Frequency

DRV401 AND SENSOR: ABSOLUTE ERROR

(Soldered DWP−20 with 1 Square−Inch Copper Pad)

(Measurements by Vacuumschmelza GmbH)

0

0.3

0.2

0.1

0

−0.1

−0.2

−0.3

300

200

100

−300

−200

−100

Primary Current (A)

T

C (RSHUNT) ±25ppm/_ C.

T=

−50_C

T= +25

_C

T= +85

_C

T= +125

_C

1.20

1.15

1.10

1.05

1.00

0.95

0.90

0.85

0.80

10

100

1k

10k

100k

1M

GAIN FLATNESS vs FREQUENCY

(Measurements by Vacuumschmelze GmbH)

Frequency (Hz)

DRV401 with M4645−X600 Sensor

DRV401 with M4645−X211 Sensor

DRV401 with M4645−X080 Sensor

20

60

100

0

I

PRIM

40

80

120

140

160

180

200

3A I

COMP OVERLOAD RECOVERY

(Measurements by Vacuumschmelze GmbH)

Time (

µs)

I

PRIM

Over−Range

ERROR

V

OUT

Over−Range

V

OUT

NOTE: I

PRIM = 3000A corresponds to ICOMP =3A.

DIFFERENTIAL AMPLIFIER:

VOLTAGE OFFSET PRODUCTION DISTRIBUTION

Voltage Offset (

µV)

RTO

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