SLS SL2411D, SL2411N Datasheet

SL2411

System Logic

Semiconductor

SLS

Tone Ringer

The SL2411 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

• Adjustable for Reduced Supply Initiation Current.

• Built-in hysteresis prevents false triggering and rotary dial ‘Chirps’

ORDERING INFORMATION

SL2411N Plastic

SL2411D SOIC

TA = -45° to 65° C

for package

PIN ASSIGNMENT

LOGIC DIAGRAM

PIN 1 = VCC

PIN 5 = GND

1. Output amplifier

2. High frequency oscillator

3. Low frequency oscillator

4. Hysteresis regulator
(Regulator circuit has built-in hysteresis to prevent false
triggering and rotary dial “Chirps”)

SL2411

System Logic

Semiconductor

SLS

PIN DESCRIPTION

NAME PIN

DESCRIPTION

VCC 1 Positive power supply.

RSL 2 External resistor

LFI 3 Input low frequency oscillator

LF0 4 Output low frequency oscillator

GND 5 Negative power supply

HF0 6 High frequency oscillator output

HFI 7 High frequency oscillator input

OUT 8 Tone output

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

Tstg Storage Temperature -65 to +150 °C

*

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 V

OUT

should be constrained to the range

GND≤(VIN or V

OUT

)≤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.