PTC-04 Melexis Inc, PTC-04 Datasheet - Page 16

• Manufacturer Part Number: PTC-04
• Description: PROGRAMMER FOR HALL EFFECT SNSR
• Manufacturer: Melexis Inc
• Type: Programmable Linear Hall Effect Sensorsr

Specifications of PTC-04

• Contents: Programmer, Software, Cables and Documentation
• For Use With/related Products: PTC Devices
• Lead Free Status / RoHS Status: Contains lead / RoHS non-compliant
• Other names: Q2662488; Q3121541

11.
The measurement system on the main board contains mainly a high accurate 16 bit ADC and two 16 to 1
channels MUX. Basically, the ADC always measures differential between inputs.
For the internal voltage channels, the negative input is the internal analog ground.
For the current measurements that use a sense resistor (PPS1-4) are clearly measuring over the sense
resistor.
There are also 4 full differential lines going to the daughter board allowing the user to make high quality
measurements by selecting the reference by the application itself. This way of working easily supports the
use of force and sense lines.
11.1. Channels
11.2. Conversion time
In general the conversion time depends on the loaded firmware version. Theoretically, a full conversion to
a floating real value takes about 4ms if the filter is put at 100 samples.
11.3. Accuracy
To preserve the accuracy of the PTC04, Melexis recommends checking the tolerance of the PTC04 once
a year.
12.
Electronic semiconductor products are sensitive to Electro Static Discharge (ESD).
Always observe Electro Static Discharge control procedures whenever handling semiconductor products.
3901290014501
Rev. 1.5
Nr
0
1
2
3
4
5
6
7
8
9
10
11
12
13
14
15
Measurement system
ESD Precautions
Pos input
Vout PPS1
V driver PPS1
Vout PPS2
V driver PPS2
Vout PPS3
V driver PPS3
Vout PPS4
V driver PPS4
Supply Driver: +35/2
Supply Analog : +5 V
Supply Digital : +5 V
Reference : +2.5V
DB_Ana_conn Pin 2
DB_Ana_conn Pin 4
DB_Ana_conn Pin 6
DB_Ana_conn Pin 8
Neg input
Vout PPS1
Vout PPS2
Vout PPS3
Vout PPS4
Internal AGND
Internal AGND
Internal AGND
Internal AGND
Internal AGND
Internal AGND
Internal AGND
Internal AGND
DB_Ana_conn Pin 10
DB_Ana_conn Pin 12
DB_Ana_conn Pin 14
DB_Ana_conn Pin 16
Page 16 of 18
Programmer for Melexis PTC devices
Description
Output Voltage PPS1
Output Current PPS1
Output Voltage PPS2
Output Current PPS2
Output Voltage PPS3
Output Current PPS3
Output Voltage PPS4
Output Current PPS4
Driver Supply divide by 2
Analog 5V Supply
Digital 5V Supply
Reference Voltage for DAC\ADC
Daughterboard Meas. Channel 1
Daughterboard Meas. Channel 2
Daughterboard Meas. Channel 3
Daughterboard Meas. Channel 4
Data Sheet PTC04
PTC04
May 10