DRV425 Datasheet, PDF (3/37 Pages) Texas Instruments – DRV425 Fluxgate Magnetic-Field Sensor

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5 Pin Configuration and Functions
RTJ Package
WQFN-20
Top View
DRV425
SBOS729 – OCTOBER 2015
BSEL 1
RSEL1 2
RSEL0 3
REFOUT 4
REFIN 5
(Thermal Pad)
15 OR
14 AINN
13 AINP
12 DRV1
11 DRV2
NAME
AINN
AINP
BSEL
COMP1
COMP2
DRV1
DRV2
ERROR
GND
OR
PowerPAD
REFIN
REFOUT
RSEL0
RSEL1
PIN
NO.
14
13
1
16
17
12
11
19
7, 10, 18, 20
15
5
4
3
2
VDD
8, 9
VOUT
6
Pin Functions
I/O
DESCRIPTION
I Inverting input of the shunt-sense amplifier
I Noninverting input of the shunt-sense amplifier
I Filter bandwidth select input
I Internal compensation coil input 1
I Internal compensation coil input 2
O Compensation coil driver output 1
O Compensation coil driver output 2
O Error flag: open-drain, active-low output
— Ground reference
O Shunt-sense amplifier overrange indicator: open-drain, active-low output
— Connect the thermal pad to GND
I Common-mode reference input for the shunt-sense amplifier
O Voltage reference output
I Voltage reference mode selection input 0
I Voltage reference mode selection input 1
Supply voltage, 3.0 V to 5.5 V. Decouple both pins using 1-µF ceramic capacitors placed as
— close as possible to the device. See the Power-Supply Decoupling and Layout sections for
further details.
O Shunt-sense amplifier output
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