INTEGRAL IL2410

TECHNICAL DATA
IL2410
Tone Ringer
The IL2410 is a bipolar integrated circuit designed for telephone bell replacement.
• Designed for Telephone Bell Replacement
• Low Curent Drain
• Adjustable 2-frequency Tone
• Adjustable Warbling Rate
• Extension Tone Ringer Modules
• Alarms or Other Alerting Devices
• External Triggering or Ringer Disable
• Built-in hysteresis prevents false triggering and rotary dial ‘Chirps’
D SUFFIX
SOIC
ORDERING INFORMATION
IL2410N Plastic
IL2410D SOIC
TA = -45° to 65° C
for package
LOGIC DIAGRAM
PIN ASSIGNMENT
PIN 1 = VCC
PIN 5 = GND
1.
2.
3.
4.
Output amplifier
High frequency oscillator
Low frequency oscillator
Hysteresis regulator
(Regulator circuit has built-in hysteresis to prevent false
triggering and rotary dial “Chirps”)
1
IL2410
PIN DESCRIPTION
NAME
PIN
VCC
1
Positive power supply.
RE
2
Initiation of oscillation start input
LFI
3
Low frequency oscillator input
LF0
4
Low frequency oscillator output
GND
5
Negative power supply
HF0
6
High frequency oscillator output
HFI
7
High frequency oscillator input
OUT
8
Tone output
DESCRIPTION
MAXIMUM RATINGS*
Symbol
Parameter
Value
Unit
VCC
DC Supply Voltage (Referenced to GND)
to +30.0
V
PD
Power Dissipation in Still Air, Plastic DIP
400
mW
-65 to +150
°C
Tstg
Storage Temperature
*
Maximum Ratings are those values beyond which damage to the device may occur.
Functional operation should be restricted to the Recommended Operating Conditions.
RECOMMENDED OPERATING CONDITIONS
Symbol
Parameter
Min
Max
Unit
VCC
DC Supply Voltage (Referenced to GND)
13.0
29.0
V
TA
Operating Temperature
-45
+65
°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.
2
IL2410
ELECTRICAL CHARACTERISTICS (Voltages Referenced to GND, TA = -45 to +65°C)
Guaranteed Limits
Symbol
Parameter
VSI
Initiation Supply Voltage
(1)
ISI
Initiation Supply Current
(1)
Test Conditions
See Fig. 1
Min
Typ
Max
Unit
16.8
21.2
V
1.4
4.2
mA
VSUS
Sustaining Voltage (2)
See Fig. 1
9.5
12.2
V
ISUS
Sustaining Current (2)
No Load VCC=VSUS
See Fig. 1
0.7
2.5
mA
VTR
Trigger Voltage (3)
VCC=15V
8.8
12.2
V
ITR
Trigger Current (3,5)
VCC=15V
5.0
1000
µA
VDIS
Disable Voltage (4)
VCC=21V
-
0.7
V
IDIS
Disable Current (4)
VCC=15V
-20
-
µA
VOH
High-Level Output
Voltage
VCC=21V, IOH=-15mA,
Pin 6=6V, Pin 7=GND
16.7
21.0
V
VOL
Low-Level Output
Voltage
VCC=21V, IOL=15mA,
Pin 6=GND, Pin 7=6V
-
1.8
V
IIN
Maximun Input Leakage
Current
(Pin 3)
Pin 3=6V,
Pin 4=GND, VCC=21V
-
1.0
µA
Pin 7=6V,
Pin 6=GND, VCC=21V
-
1.0
µA
(Pin 7)
fH1
High Frequency 1
R3=191KΩ,C3=6800pF
461
563
Hz
fH2
High Frequency 2
R3=191KΩ,C3=6800pF
576
704
Hz
fL
Low Frequency
R2=165KΩ, C2=0.47µF
9.0
11.0
Hz
Notes:
1. Initiation supply voltage (VSI) is the supply voltage required to start the tone ringer oscillating.
2. Sustaining voltage (VSUS) is the supply voltage required to maintain oscillation.
3. VTR and ITR are the conditions applied to trigger in to start oscillation for VSUS≤VCC≤VSI.
4. VDIS and IDIS are the conditions applied to trigger in to inhibit oscillation for VSI≤VCC.
5. Trigger current must be limited to this value externally.
3
IL2410
CIRCUIT CURRENT-SUPPLY VOLTAGE (NO LOAD)
Figure 1
APPLICATION CIRCUIT
Figure 2
4
IL2410
APPLICATION NOTE
The application circuit illustrates the use of the IL2410 devices in typical telephone or extension tone ringer application.
The AC ringer signal voltage appears across the TIP and RING inputs of the circuit and is attenuated by capacitor C1
and resistor R1.
C1 also provides isolation from DC voltages (48V) on the exchange line.
After full wave rectification by the bridge diode, the waveform is filtered by capacitor C4 to provide a DC supply for
the tone ringer chip.
As this voltage exceeds the initiation voltage (VSI), oscillation starts.
With the components shown, the ouptut frequency chops between 512(fh1) and 640Hz(fh2) at a 10Hz(fL) rate.
The loudspeaker load is coupled through a 1300Ω to 8Ω ransformer.
The output coupling capacitor C5 is required with transformer coupled loads.
When driving a piezo-ceramic transducer type load, the coupling C5 and transformer (1300Ω:8Ω) are not required.
However, a current limiting resistor is required.
The low frequency oscillator oscillates at a rate (fL) controlled by an external resistor (R2) and capacitor (C2).
The frequency can be determined using the relation fL=1/1.289R2xC2. The high frequency oscillates at a fH1, fH2
controlled by an external resistor (R3) and capacitor (C3). The frequency can be determined using the relation
fH1=1/1.504R3xC3, fH2=1/1.203R3xC3.
TRIGGERING IL2410 FROM CMOS OR TTL LOGIC
Figure 3
Figure 4
5
IL2410
EQUIVALENT CIRCUIT (Pin 2 Input)
INHIVITING OSCILLATION
Figure 5
Figure 6
PROGRAMMING THE IL2410 INITIATION SUPPLY VOLTAGE
Figure 7
Figure 8
6
IL2410
N SUFFIX PLASTIC DIP
(MS – 001BA)
A
Dimension, mm
5
8
B
1
4
MIN
MAX
A
8.51
10.16
B
6.1
7.11
5.33
C
L
F
Symbol
C
D
0.36
0.56
F
1.14
1.78
-T- SEATING
PLANE
N
G
M
K
0.25 (0.010) M
J
H
D
T
NOTES:
1. Dimensions “A”, “B” do not include mold flash or protrusions.
Maximum mold flash or protrusions 0.25 mm (0.010) per side.
G
2.54
H
7.62
J
0°
10°
K
2.92
3.81
L
7.62
8.26
M
0.2
0.36
N
0.38
D SUFFIX SOIC
(MS - 012AA)
Dimension, mm
A
8
5
B
H
1
G
P
4
D
K
MIN
MAX
A
4.8
5
B
3.8
4
C
1.35
1.75
D
0.33
0.51
F
0.4
1.27
R x 45
C
-T-
Symbol
SEATING
PLANE
J
F
0.25 (0.010) M T C M
NOTES:
1. Dimensions A and B do not include mold flash or protrusion.
2. Maximum mold flash or protrusion 0.15 mm (0.006) per side
for A; for B ‑ 0.25 mm (0.010) per side.
M
G
1.27
H
5.72
J
0°
8°
K
0.1
0.25
M
0.19
0.25
P
5.8
6.2
R
0.25
0.5
7