CS235 Ver la hoja de datos (PDF) - Cherry semiconductor

Número de pieza

componentes Descripción

Fabricante

CS235

System Photoelectric Smoke Detector

Cherry semiconductor 

Electrical Characteristics: TA = 25¡C

PARAMETER

TEST CONDITIONS

MIN

TYP

s Amplifier A2

DC Output (pin 9)

R3 = 6k½, R4 = 510½, C5 = .47µF

2.5

Input Bias Current (pin 8)

(Externally adjusted gain

with R3 and R4. Unity DC gain)

Voltage gain @ 3.5kHz

(Externally adjusted gain

21.6

with R3 and R4. Unity DC gain)

MAX

UNIT

V

250

nA

dB

s Detector and Reference Output (C4 = .47µF)

Reference Resistance

13

19

Reference Voltage

(pin 10)

1.8

3.6

Detector Output Resistance

10

15

Detector Output Voltage

(pin 11)

1.4

2.8

(No signal, and at 2X time Constant)

25

k½

5.5

V

20

k½

4.3

V

s Main Timer (R1 = 20M½, R2 = 75k½, C1 = .47µF)

Power Up Pulse Period

Standby Mode (pin 1)

Power Up Pulse Period

Speed Up Mode (pin 1)

Power Up Pulse Width

(pin 1)

Gate Pulse Width

Power up pulse width 12

Sink Current (pin 18)

V (pin 16) = 16V

Source Current (pin 18)

V (pin 16) = 16V

8

10

1.5

2

20

10

415

460

-220

-235

12

Sec

2.5

Sec

ms

ms

505

nA

-250

µA

s Output Circuit

Output Latch Voltage

(pin 3) ISUPPLY = 100mA

4.4

5.2

Leakage Current

V (pin 3) = 38V, V (pins 2, 16) = 0V

500

6.1

V

µA

s Alarm

Alarm Reset

Supply interruption

5

Sec

Power up time

30

Sec

System will go into alarm upon detection and transfer of three consecutive alarm level signals into the counter.

3

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