MLX90371 datasheet(12/14 Pages) MELEXIS

12 / 14 page

PTC04-DB-HALL06

Daughter Board for Melexis PTC devices

PTC04-DB-HALL06

Page 12 of 14

Data Sheet

Rev. 2.0 (Preliminary)

April 15

1.5. Jumper Selection

1.5.1.

CON18 and CON19

– short measuring lines

The D-SUP DB-25 connector of the daughter

board is equipped with a sensing line for each

analog device pin.

The top row is the force line of the device pins.

The bottom row is the sensing line of the device

pins.

Between each force and sense line there is a

jumper to short the sense line at the DB-25

connector on the daughter board.

The jumper is placed when the external sensing

is not required. For example: an application with

a digital or PWM output.

Figure 13: Jumper between force and sense line.

Figure 14: DB-25 device connector.

CON18 and CON19 are used to short the force

and sense line of the analog device pins.

In other words, they are used to select single

wire or double wire connection to the pin of the

module / sensor.



CON18  Device / Die A



CON19  Device / Die B

D-SUB DB-25

Connector

VDDA

VDD_Sens

Module

Connector

VDD

Single wire connection

When de jumper is closed, only one wire is

required per pin between the PTC-04 and the

module or sensor.

In the table above these pins are marked as

“Minimum required single/dual die connection”.

In this configuration the measurement of VDD,

OUT1 or OUT2 is done at the D-SUB DB-25

connector of the PTC04-DB-HALL06.

D-SUB DB-25

Connector

VDDA

VDDA_Sens

Module

Connector

VDD

Double wire connection

When de jumper is open, two wires are required

per pin between the PTC-04 and the module or

sensor.

With two wires connected at the module side,

the measurement of VDD, OUT1 or OUT2 is

done on the module or sensor connector.

The external sensing line per pin is only required

for applications with an analog sensor output

and where a higher measuring accuracy is

required.

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