1996 Dec 05

3

Philips Semiconductors

Preliminary specification

Integrated rotational speed sensor

KMI15/1

LIMITING VALUES

In accordance with Absolute Maximum Rating System (IEC 134).

Note

(see Fig.7).

CHARACTERISTICS

gear wheel: module 2 mm; material 1.0715; unless otherwise specified.

Note

1. High rotational speeds of wheels reduce the sensing distance due to eddy current effects (see Fig.17).

SYMBOL

PARAMETER

CONDITIONS

MIN.

MAX.

UNIT

DC supply voltage

16

V

storage temperature

−40

+150

°C

ambient operating temperature

−40

+85

°C

soldering temperature

t

≤ 10 s

−

260

°C

output short-circuit duration to GND

continuous; note 1

SYMBOL

PARAMETER

CONDITIONS

MIN.

TYP.

MAX.

UNIT

current output signal low

see Figs 6 and 8

5.6

7.0

8.4

mA

current output signal high

see Figs 6 and 8

11.2

14.0

16.8

mA

output signal rise time

0.5

−µs

output signal fall time

0.7

−µs

switching delay time

between stimulation pulse (generated

by a coil) and output signal

−

1

−µs

operating tooth frequency for both rotation directions

0

−

25000

Hz

d

sensing distance

see Fig.15 and note 1

0 to 2.5 0 to 2.9

−

mm

δ

duty cycle

see Fig.6

30

50

70

%