DRV401-Q1 Datasheet, PDF (3/39 Pages) Texas Instruments – DRV401-Q1 Sensor Signal Conditioning Device for Closed-Loop Magnetic Current Sensor

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5 Pin Configuration and Functions
RGW Package
20-Pin VQFN With Exposed Thermal Pad
Top View
DRV401-Q1
SBOS814 – DECEMBER 2016
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 ^VDD2
11 ^ICOMP1
PIN
NAME
NO.
CCdiag
13
DEMAG
2
ERROR
1
GAIN
3
GND1
17
GND2
9
IA_IN1
8
IA_IN2
7
I_COMP1
11
I_COMP2
10
IS1
18
IS2
16
OVER-
RANGE
14
PWM
19
PWM
20
REF_OUT
4
REF_IN
5
Thermal
pad
—
V_DD1
15
V_DD2
12
V_OUT
6
Pin Functions
I/O
DESCRIPTION
I
Control input for wire-break detection: high = enable
I
Control input; See the Demagnetization section.
O
Error flag: open-drain output. See the Error Conditions section.
I
Control input for open-loop gain: low = normal, high = −8 dB
—
Ground connection
—
Ground connection. Connect to GND1.
I
Inverting input of differential amplifier
I
Noninverting input of differential amplifier
O
Output 1 of compensation coil driver
O
Output 2 of compensation coil driver
I/O
Probe connection 1
I/O
Probe connection 2
O
Open-drain output for overrange indication: low = overrange
O
PWM output from probe circuit (inverted)
O
PWM output from probe circuit
O
Output for internal 2.5-V reference voltage
I
Input for zero reference to differential amplifier
—
Exposed thermal pad. Connect to GND1.
—
Supply voltage
—
Supply voltage. Connect to V_DD1.
O
Output for differential amplifier
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