UTCTA31002

LINEAR INTEGRATED CIRCUIT

2

QW-R108-004,A

BLOCK DIAGRAM

LOW

OSC

HIGH

OSC

AMP

POWER SUPPLY (WITH HYSTERESIS)

8

6

7

4

3

1

5

2

OUTPUT

R2

R1

C2

C1

Note:R1,R2,C1 and C2 are partsexternally mounted

°C )

(All voltage referenced to GND unless otherwise specified)

PARAMETER

SYMBOL

TEST CONDITIONS

MIN

TYP

MAX

UNIT

Operating Voltage

Vopr

29

V

Initiation Supply Voltage

Vsi

(note 1)

17

19

21

V

Sustaining Supply Voltage

Vsus

(note 2)

10.5

12

-

V

Initiation Current Consumption

Isi

No-Load

1.4

3.3

4.2

mA

Sustaining Current Consumption

Isus

0.7

1.4

2.5

mA

fL

C1=0.47

µF,R1=165kΩ

9

10

11

Hz

Oscillation Frequency (not3)

fH1

C2=6800pF,R2=191k

Ω

461

512

563

Hz

fH2

576

640

703

Hz

Output Voltage

“ H” Level

Vcc=24V,VOH=-10mA

PIN7=GND

20.0

21.5

22.5

V

Output Voltage

“L” Level

Vcc=24V,VOL=10mA

PIN7=7V

0.7

1.0

2.0

V

*NOTE : 1. Initiation supply voltage (Vsi) is a supply voltage required to start oscillation of the tone ringer.

2. Sustaining supply voltage (Vsus) is a supply voltage required to maintain oscillation of the tone ringer.

3. Oscillation frequency is determined by the following equations 1,2,and 3.

(1) fL=1/1.234

•R1•C1 (Hz) ; (2)fH1=1/1.515•R2•C2 (Hz); (3)fH2=1.24 fH1(Hz)