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IL2418 반도체 회로 부품 판매점

Telephone Tone Ringer with Bridge Diode



ETC 로고
ETC
IL2418 데이터시트, 핀배열, 회로
Telephone Tone Ringer with
Bridge Diode
TECHNICAL DATA
IL2418
The IL2418 is a monolithic integrated circuit telephone tone ringer with
bridge diode, when coupled with an appropriate transducer, it replaces
the electro-mechanical bell. The device is designed for use with either
a piezo transducer or an inexpensive transformer coupled speaker to
produce a pleasing tone composed of a high frequency (fR) alternating
with a low frequency (fL) resulting in a warble frequency. The supply
voltage is obtained from the AC ring signal and the circuit is designed
so that noise on the line or variation of the ringing signal can not
affect correct operation of the device.
On chip high voltage full wave diode bridge rectifier
Low current consumption, in order to allow the parallel operation
of the 4 devices
Low external component count
Tone and switching frequencies adjustable by external
components
High noise immunity due to built-in voltage-current hysteresis
Activation voltage adjustable
Internal zener diodes to protect against over voltages
Ringer impedance adjustable with external components
ORDERING INFORMATION
IL2418N Plastic
TA = -20° to 70° C
for package
PIN ASSIGNMENT
BLOCK DIAGRAM
1


IL2418 데이터시트, 핀배열, 회로
IL2418
MAXIMUM RATINGS* (TA = 25°C)
Symbol
Parameter
Value
VTP Calling Voltage (f = 50 Hz) Continuous
VTP Calling Voltage (f = 50 Hz) 5 Sec ON/10 Sec OFF
ICC Supply Current
Tstg Storage and Junction Temperature
120
200
22
-65 to +150
* Maximum Ratings are those values beyond which damage to the device may occur.
Functional operation should be restricted to the Recommended Operating Conditions.
Unit
Vrms
Vrms
mA
°C
RECOMMENDED OPERATING CONDITIONS
Symbol
Parameter
VCC Supply Voltage
TA Operating Temperature
Min Max Unit
26 V
-20 +70 °C
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 any voltage higher than maximum rated
voltages to this high-impedance circuit. For proper operation, VIN and VOUT should be constrained to the range
GND(VIN or VOUT)VCC.
Unused inputs must always be tied to an appropriate logic voltage level (e.g., either GND or VCC).
Unused outputs must be left open.
ELECTRICAL CHARACTERISTICS(TA = 25°C)
Symbol
Parameter
Test Conditions
ICC
VON
VONR
VSUS
RD
VOUT
IOUT
Current Consumption without
Load
Activiation Voltage
Activiation Voltage Range
Sustaining Voltage
Differential Resistance in Off
Condition
Output Voltage Swing
Short Circuit Current
VS=8.8 to 26 V
RA = 1 K
VS = 26 V
Guaranteed Limits
Min Typ Max
1.8
12.2 13
8 10
8 8.8
6.4
VCC-3
35
Unit
mA
V
V
V
K
V
mA
2




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IL2418 diode

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