Philips OM3105P Datasheet

DISCRETE SEMICONDUCTORS

DATA SH EET

OM3105P

Hybrid integrated circuits for
inductive proximity detectors

Preliminary specification
File under Discrete Semiconductors, SC17

Philips Semiconductors

January 1994

Philips Semiconductors Preliminary specification

Hybrid integrated circuits for inductive
proximity detectors

FEATURES

• Extra small dimensions (3 x 20 mm max.)

• Wide supply voltage range (6 to 35 V)

• Supply current typical 1.5 mA (output stage

switched off)

• High output current (250 mA max.)

• RC filter on the supply lines

• PNP output transistor protected against transients from

the inductive load

• Circuit protected against wrong polarity connection of
the supply voltage

• Electronic short-circuit protection

• Detection distance adjustable by a chip resistor (Rd),

type 1206

• Only a simple coil in one part is required; e.g. the
OM2860 requires a coil in two parts

• Hysteresis adjustable by a chip resistor (Rh), type 0603,
for using the OM3105P with other then M5 coils

• Status of the output is shown by a yellow or red LED
mounted on the substrate surface

• The OM3105P is also available without a LED, but with
an output pad for external LED connection

• A version with a NPN output transistor is available
(OM3105P).

OM3105P

DESCRIPTION

The OM3105P is a hybrid integrated circuit intended for
inductive proximity detectors in a tubular construction,
especially the M5 hollow stud. The circuit performs a make
function (version 1): when actuated, the current flows
through the load, which can be for example a LED or an
optocoupler. It is also possible to perform a break function
when using version OM3115P.

Available versions:

OM3105P: pnp output; make function
OM3115P: pnp output; break function
OM3105N: npn output; make function
OM3115N: npn output; break function
OM31.5./0: for external LED connection.

QUICK REFERENCE DATA

SYMBOL PARAMETER CONDITIONS TYP. MAX. UNIT

V

B

I

O

f

sw

T

s

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DC supply voltage 6 35 V
output current VB = 24 V; Ts= 25 °C − 250 mA
operating switching frequency M5 coil − 5 kHz
operating substrate temperature −20 +70 °C

Philips Semiconductors Preliminary specification

inductive
load

3

1

20 max

8

7

3

max

5

4

7.75 0.3

6

2

Dimensions in mm.
Coil: Ø 0.063 mm Cu wire, 80 turns.
Potcore: 3.3 x 1.3 mm.

Fig.1 Outline and connections.

Hybrid integrated circuits for inductive
proximity detectors

MECHANICAL DATA

OM3105P

MSA936 - 1

PAD INFORMATION

PAD NUMBER DESCRIPTION

1 output
2 negative supply (−)
3 positive supply (+)
4 coil connection
5 coil connection
6 Rd resistor (type 1206) for adjusting the detection distance
7 Rt resistor (type 0603) for adjusting the stability with temperature variations
8 Rh resistor (type 0603) for adjusting the hysteresis

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