KMI15/4 데이터 시트보기 (PDF) - Philips Electronics

부품명

상세내역

제조사

KMI15/4

Rotational speed sensor

Philips Electronics 

Philips Semiconductors

Rotational speed sensor

Product specification

KMI15/4

EMC

Figure 18 shows a recommended application circuit for

automotive applications (wheel sensing ft < 5 kHz).

It provides a protection interface to meet Electromagnetic

Compatibility (EMC) standards and safeguard against

voltage spikes Table 1 lists the tests which are applicable

to this circuit and the achieved class of functional status.

Protection against ‘load dump’ (test pulse 5 according to

“DIN 40839”) means a very high demand on the protection

circuit and requires a suitable suppressor diode with

sufficient energy absorption capability.

The board net often contains a central load dump

protection that makes such a device in the protection

circuit of the sensor module unnecessary.

Tests for electrostatic discharge (ESD) were conducted in

line with “IEC 801-2” to demonstrate the KMI15/4’s

handling capabilities. The “IEC 801-2” test conditions

were: C = 150 pF, R = 150 Ω, V = 2 kV.

Electromagnetic disturbances with fields up to 150 V/m

and f = 1 GHz (ref. “DIN 40839”) have no influence on

performance.

Table 1 EMC test results

EMC REF. DIN 40839

SYMBOL

Test pulse 1

VLD

Test pulse 2

VLD

Test pulse 3a

VLD

Test pulse 3b

VLD

Test pulse 4

VLD

Test pulse 5

VLD

MIN. (V)

−100

−

−150

−

−7

−

MAX. (V)

−

100

−

100

−

120

REMARKS

td = 2 ms

td = 0.2 ms

td = 0.1 µs

td = 0.1 µs

td = 130 ms

td = 400 ms

CLASS

C

A

A

A

B

B

D1

handbook, halfpage

+V

1N4001/3

VCC

SENSOR

−V

BZTO3G36

D2

C1 RL

100 115

CL

100

nF

Ω

nF

GND

MGD805

Fig.18 Test/application circuit for the KMI15/4.

2000 Sep 05

10

Share Link: