MPXM2102AS datasheet(654/670 Pages) MOTOROLA

654 / 670 page

MC145018

4–62

Motorola Sensor Device Data

www.motorola.com/semiconductors

TIMING PARAMETERS (C = 0.1

µF, Rbias = 8.2 MΩ, VDD = 9.0 V, TA = 25°C, See Figure 6)

Characteristics

Symbol

Min

Max

Units

Oscillator Period

No Smoke

Smoke

tCI

1.46

37.5

1.85

45.8

Oscillator Rise Time

10.1

12.3

Horn Output

On Time

(During Smoke)

Off Time

PWon

PWoff

450

550

LED Output

Between

Pulses

On Time

tLED

PWon

35.0

10.1

44.5

12.3

Horn Output

On Time

(During Low Battery)

Between

Pulses

ton

toff

10.1

35.0

12.3

44.5

LOW BATTERY

COMPARATOR

Figure 1. Block Diagram

VDD

45 K

LOW V SET

DETECT

COMP. OUT

280 K

SENSITIVITY

SET

325 K

STROBE OUT

VDD

–

DETECT

INPUT

DETECT

COMPARATOR

GUARD

AMP

–

LO–Z

ALARM

LOGIC

POWER–ON

RESET

OSC

AND

TIMING

I/O

FEEDBACK

SILVER

BRASS

LED

VDD = PIN 6

VSS = PIN 9

VDD

TO OTHER UNITS

HI–Z

VDD

Freescale Semiconductor, Inc.

For More Information On This Product,

Go to: www.freescale.com

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