MC14468 查看數據表（PDF） - Motorola => Freescale

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MC14468

Low-Power CMOS Ionization Smoke Detector IC with Interconnect

Motorola => Freescale 

MC14468

Freescale Semiconductor, Inc.

RECOMMENDED OPERATING CONDITIONS (Voltages referenced to VSS)

Parameter

Symbol

Value

Unit

Supply Voltage

Timing Capacitor

Timing Resistor

Battery Load (Resistor or LED)

VDD

9.0

V

—

0.1

µF

—

8.2

MΩ

—

10

mA

ELECTRICAL CHARACTERISTICS (TA = 25°C)

Characteristic

VDD

Symbol

Vdc

Min

Typ#

Max

Operating Voltage

Output Voltage

* Piezoelectric Horn Drivers (IOH =

* Comparators (IOH = 30 µA)

16 mA)

Piezoelectric Horn Drivers (IOL = +16 mA)

Comparators (IOL = +30 µA)

Output Voltage — LED Driver, IOL = 10 mA

Output Impedance, Active Guard

Pin 14

Pin 16

VDD

—

6.0

VOH

7.2

6.3

9.0

8.5

VOL

7.2

—

9.0

—

VOL

7.2

—

Lo–Z

9.0

—

Hi–Z

9.0

—

—

12

—

—

8.8

—

—

0.9

0.1

0.5

—

3.0

—

10

—

1000

Operating Current (Rbias = 8.2 MΩ)

Input Current — Detect (40% R.H.)

Input Current, Pin 8

Input Current @ 50°C, Pin 15

IDD

9.0

—

12.0

—

Iin

9.0

—

Iin

9.0

—

Iin

—

—

5.0

9.0

—

12.0

—

"1.0

—

"0.1

—

"6.0

Internal Set Voltage

Low Battery

Sensitivity

Vlow

9.0

7.2

—

7.8

Vset

—

47

50

53

Hysteresis

vhys

9.0

75

100

150

Offset Voltage (measured at Vin = VDD/2)

Active Guard

Detect Comparator

Input Voltage Range, Pin 8

VOS

9.0

—

9.0

—

—

—

"100

"50

Vin

—

* VSS 10

—

VDD + 10

Input Capacitance

Common Mode Voltage Range, Pin 15

Cin

—

—

Vcm

—

0.6

5.0

—

—

* VDD 2

I/O Current, Pin 2

* Input, VIH = VDD 2

* Output, VOH = VDD 2

IIH

IOH

—

—

*25

4.0

—

—

*100

16

# Data labelled “Typ’’ is not to be used for design purposes but is intended as an indication of the IC’s potential performance.

Unit

V

V

V

V

kΩ

µA

pA

µA

pA

V

%VDD

mV

mV

V

pF

V

µA

mA

2

For More Information On This Product, Motorola Sensor Device Data

Go to: www.freescale.com

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