MCZ146012EGR2 datasheet(3/18 Pages) FREESCALE

Part #	MCZ146012EGR2

Description	Low Power CMOS Photoelectric Smoke Detector IC

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Manufacturer	FREESCALE [Freescale Semiconductor, Inc]

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Freescale Semiconductor

3

MC146012

This device contains protection circuitry to guard against

damage due to high static voltages or electric fields.

However, precautions must be taken to avoid applications of

voltages any higher than maximum rated voltages to this

high-impedance circuit. For proper operation, VIN and VOUT

should be constrained to a range of VSS ≤ (VIN or

VOUT) ≤ VDD except for I/O pin which can exceed VDD, and

the Test/Mute input, which can go below VSS.

Unused inputs must always be tied to an appropriate logic

voltage level (e.g. either VSS or VDD). Unused outputs and/or

an unused I/O must be left open.

Table 1. Maximum Ratings(1) (Voltages Referenced to VSS)

1. Maximum ratings are those values beyond which damage to the device may occur. Functional operation should be restricted to the limits in

the electrical characteristics tables.

Symbol

Parameter

Value

Unit

VDD

DC Supply Voltage

-0.5 to +12

V

VIN

DC Input Voltage

C1, C2, Detect

Osc, Low-Supply Trip

I/O

Feedback

Test

-0.25 to VDD +0.25

-0.25 to VDD +10

-15 to +25

-1.0 to VDD +0.25

V

IIN

DC Input Current, per Pin

±10

mA

IOUT

DC Output Current, per Pin

±25

mA

IDD

DC Supply Current, VDD/VSS pins

(15 Seconds in Reverse Dir.)

+25 Forward

-150 Reverse

mA

PD

Power Dissipation

† in Stil Air, 5 sec.

†† Continuous

1200(2)

350(3)

2. Derating: -12 mW/°C from 25°C to 60°C.

3. Derating: -3.5 mW/°C from 25°C to 60°C.

mW

Tstg

Storage Temperature

-55 to +125

°C

TA

Operating Temperature

-25 to +75

°C

TL

Lead Temperature, 1 mm from case for 10 seconds

260

°C

Table 2. Electrical Characteristics (Voltages Referenced to VSS, TA = -10 to 60°C unless otherwise indicated.)

Symbol

Parameter

Test Condition

Test

VDD

Min

Max

Unit

VDD

Power Supply Voltage Range

—

6.0

12

V

VTH

Supply Threshold Voltage, Low Supply Alarm

Low Supply Trip: VIN = VDD/3

15

—

7.2

7.8

V

IDD

Average Operating Supply Current

(per Package)

(Does not include Current through D3-IR Emitter)

Standby

Configured per Figure 5

—

12

9.0

—

9.0

7.0

µA

IDD

Peak Supply Current (per Package)

(Does not include IRED Current into base of Q1)

During Strobe On, IRED Off

Configured per Figure 5

During Strobe On, IRED On

Configured per Figure 5

—

12

—

1.25

2.5

mA

VIL

Low Level Input Voltage

I/O

Feedback

Test

7.0

10

16

9.0

—

1.5

2.7

0.5

V

VIM

Mid Level Input Voltage

Test

16

9.0

2.0

VDD-2.0

V

VIH

High Level Input Voltage

I/O

Feedback

Test

7.0

10

16

9.0

3.2

6.3

8.5

—

V

IIN

Input Current

OSC, Detect

Low-Supply Trip

Feedback

Test

VIN = VSS or VDD

3.12

15

10

16

12

-100

+100

nA

IIL

Test Mode Input Current

VIN = VSS or VDD

16

12

-100

-1.0

µA

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