DRV401_15 Datasheet, PDF (5/36 Pages) Texas Instruments – Sensor Signal Conditioning IC for Closed-Loop Magnetic Current Sensor

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PIN CONFIGURATIONS
Top View
RGW Top View
DRV401
SBVS070B − JUNE 2006 − REVISED MAY 2009
DWP
ERROR 1
DEMAG 2
GAIN 3
REF_OUT 4
REF_IN 5
Exposed
Thermal Pad
on Underside,
Connect
to GND1
15 V_DD1
14 OVER−RANGE
13 CCdiag
12 V_DD2
11 I_COMP1
QFN−20 (5mm x 5mm)
PWM 1
PWM 2
ERROR 3
DEMAG 4
GAIN 5
REF_OUT 6
REF_IN 7
V_OUT 8
IA_IN2 9
IA_IN1 10
Exposed
Thermal Pad
on Underside,
Connect
to GND1
20 IS1
19 GND1
18 IS2
17 V_DD1
16 OVER−RANGE
15 CCdiag
14 V_DD2
13 I_COMP1
1 2 I_COMP2
11 GND2
Wide−Body SO−20
NAME
ERROR
DEMAG
GAIN
REF_OUT
REF_IN
V_OUT
IA_IN2
IA_IN1
GND2
I_COMP2
I_COMP1
V_DD2
CCdiag
OVER−RANGE
V_DD1
IS2
GND1
IS1
PWM
PWM
Exposed Thermal Pad
RGW
1
2
3
4
5
6
7
8
9
10
11
12
13
14
15
16
17
18
19
20
—
DWP
3
4
5
6
7
8
9
10
11
12
13
14
15
16
17
18
19
20
1
2
—
PIN ASSIGNMENTS
DESCRIPTION
Error flag: open-drain output, see the Error Conditions section.
Control input, see the Demagnetization section.
Control input for open-loop gain: low = normal, high = −8dB.
Output for internal 2.5V reference voltage.
Input for zero reference to differential amplifier.
Output for differential amplifier.
Noninverting input of differential amplifier.
Inverting input of differential amplifier.
Ground connection. Connect to GND1.
Output 2 of compensation coil driver.
Output 1 of compensation coil driver.
Supply voltage. Connect to V_DD1.
Control input for wire-break detection: high = enable.
Open-drain output for over-range indication: low = over-range.
Supply voltage.
Probe connection 2.
Ground connection.
Probe connection 1.
PWM output from probe circuit (inverted).
PWM output from probe circuit.
Connect to GND1.
5