MLX16305(2006) View Datasheet(PDF) - Melexis Microelectronic Systems

Part Name

Description

View to exact match

MLX16305
(Rev.:2006)

Interlock switch sensor interface IC

Melexis Microelectronic Systems  

MLX16305

Interlock switch sensor interface IC

11. How to predict the system operating zone

11.1. VMEASout limits

The worst case output voltages, including measurement errors, on the MEAS_OUT pin can be predicted

with following formulas:

• For 5mA < ISENSE ≤ 40mA

- VMEASOUTmin = [ISENSE /10 * (1 - %Meas_Ierr1) + Ioffsetmin ] * RREF * 0.9

- VMEASOUT max = [ISENSE /10 * (1 + %Meas_Ierr1) + Ioffsetmax ] * RREF * 0.9

• For ISENSE ≤ 5mA

- VMEASOUTmin = [ISENSE/ 10 - IMeas_Ierr2 + Ioffsetmin ] * RREF * 0.9

- VMEASOUTmax = [ISENSE/ 10 + IMeas_Ierr2 + Ioffsetmax ] * RREF * 0.9

11.2. Isense limits

Vsup

25V

16.25V

Isense

The operating range, and the

corresponding maximum Isense,

is defined by the Vsup-Vref range as

shown in the graph.

11V

10.5V

9.5V

8V

<30mA

<40mA

<45mA

NOP

No OPeration allowed

3V 4.5V

7V 8.25V

Vref

Other limiting specifications are:

1) Absolute maximum allowable Isense < 90mA:

Under no condition the Isense current should be larger than 90mA, in order to avoid permanent damage

to the IC.

2) Minimum Current limitation threshold: see Overcurrent limitation (next paragraph)

3) Overtemperature shutdown: see Overtemperature Detection

3901016305

Rev. 005

Page 17 of 29

Data Sheet

Oct/06

Share Link: