TS2418_07

TS2418 Series Telephone Tone Ringer with Bridge Diode SOP-8 DIP-8 Pin Definition: 1. Ring 5. TIP 2. Ground 7 . RC 3 . SRC 6 . AVA 4 . OF C 5. Output General Description The TS2418 is a monolithic integrated circuit telephone tone ringer with bridge diode, when coupled w ith an appropriate transducer , it replaces the electromechanical bell. This device is designed for use with either a piezo transducer or an inexpensive tr ansfor mer 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 var iation of the ringing signal c an not affec t correc t operation of the device Features ● ● ● ● ● ● ● ● On chip high v oltage full w ave diode bridge rectifier. Low current consumption, in order to allow the parallel operation of the 4 devices . Low ex ternal component count. Tone and switching frequencies adjus table by external components . High noise immunity due to built-in voltage current hysteresis. Activation voltage adjustable. Inter nal zener diodes to protect against over voltages. Ringer impedance adjus table w ith external components . Ordering Information Part No. TS2418CD C3 TS2418C S R L Package DIP-8 SOP-8 Packi ng 50pc s / T ube 2.5Kpcs / 13” Reel Block Diagram 1/6 Version: A07 TS2418 Series Telephone Tone Ringer with Bridge Diode Absolute Maximum Rating Parameter Calling Voltage (f=50Hz) C ontinuous Calling Voltage (f=50Hz) 5 Sec ON/10 Sec OFF Supply Current Operating Temperature Symbol VTP VTP ICC TOP Val ue 120 200 22 0 ~+7 0 Unit Vrms Vrms mA 0 0 C C Storage and Junction Temperature Tstg - 6 5 ~+1 5 0 Note: a. Maximum Rating are those values beyond which damage to the device may occur. b. Functional operation should be res tricted to the Recommended Operating C onditions . Recommended Operating Conditions Descripti on Supply Voltage Operating Temperature Symbol VCC TA Mi n -- 20 Max 26 +7 0 Unit V 0 C Note: This device contains protec tion circuitry to guar d against damage due to high static voltages or electric fields. However, precautions mus t 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 ≦(VI N or VOUT) ≦ VCC. Unused inputs mus t always be tied to an appropr iate logic voltage level (e.g., either GN D or VCC ). Unus ed output must be left open. Electrical Specifications (Ta = 25oC, unless otherwise noted) Parameter Supply Voltage Current Consumption without Load Activation Voltage Activation Voltage Range Sustaining Voltage Differential Resistance in Off Condition Output Voltage Sw ing Shor t Circuit Current AC Operat ion Output Frequency fH1 fH2 fH1 Range Sweep Frequency fL fH1 fH2 VCC =26V,R1=14KΩ VSCR =0V VSCR =6V R1=27KΩ to 1.7 KΩ R1=14KΩ,C 1=100nF --0.1 -2300 1700 -10 --15 -Hz Hz KHz Hz Symbol VCC ICC VON VONR VSUS RD VOUT IOUT Test Conditi ons Vs = 8.8 to 26V RA=1KΩ Mi n --12.2 8.0 8.0 6.4 -- Ty p -1.5 ----VCC-3 35 Max 26 1.8 13 10 8.8 ---- Unit V mA V V V KΩ V mA Vs=26V -- 2/6 Version: A07 TS2418 Series Telephone Tone Ringer with Bridge Diode Test and Application Circuit . Descripti on: The TS2418 tone r inger derives its power supply by r ectify ing the AC ringing signal. It uses this power to activate two tone generators. The two tone frequencies generated are switched by internal oscillator in a fas t sequence and made audible across an output amplifier in the loudspeaker; both tone frequenc ies and the switching fr equency can be ex ternally adjusted. The device can drive either direc tly a piezo ceramic converter ( buzzer) or small loudspeaker. In case of using a loudspeaker, a transfor mer is needed. An internal shunt voltage regulator provides DC voltage to the output stage, low frequency oscillator, and high f frequency oscillator . To protec t the IC from telephone line tr ansients, a zener D iode is included. 3/6 Version: A07 TS2418 Series Telephone Tone Ringer with Bridge Diode SOP-8 Mechanical Drawing DIM A B C D F G K M P R SOP-8 DIMEN SION MILLIMETER S INCH ES MIN MAX MIN MAX. 4.80 5.00 0.189 0.196 3.80 4.00 0.150 0.157 1.35 1.75 0.054 0.068 0.35 0.49 0.014 0.019 0.40 1.25 0.016 0.049 1.27BSC 0.05BSC 0.10 0.25 0.004 0.009 0º 7º 0º 7º 5.80 6.20 0.229 0.244 0.25 0.50 0.010 0.019 4/6 Version: A07 TS2418 Series Telephone Tone Ringer with Bridge Diode DIP-8 Mechanical Drawing DIM A B C D G J K L M DIP-8 D IMEN SION MILLIMETER S INCH ES MIN MAX MIN MAX 9.07 9.32 0.357 0.367 6.22 6.48 0.245 0.255 3.18 4.45 0.125 0.135 0.35 0.55 0.019 0.020 2.54 (typ) 0.10 (typ) 0.29 0.31 0.011 0.012 3.25 3.35 0.128 0.132 7.75 8.00 0.305 0.315 o o 10 10 5/6 Version: A07 TS2418 Series Telephone Tone Ringer with Bridge Diode Notice Specifications of the produc ts displayed herein are s ubject to change without notice. TSC or anyone on its behalf, assumes no responsibility or liability for any errors or inaccuracies. Infor mation contained herein is intended to pr ovide a product description only. N o license, express or implied, to any intellectual proper ty rights is granted by this document. Except as provided in TSC’s terms and conditions of sale for such products , TSC assumes no liability whatsoever, and disclaims any express or implied warranty, relating to sale and/or use of TSC products including liability or warranties relating to fitness for a par ticular purpose, merchantability, or infringement of any patent, copyright, or other intellectual proper ty right. The products shown herein are not designed for use in medical, life-saving, or life-sus taining applications . C ustomers using or selling these products for use in such applications do so at their own risk and agree to fully indemnify TSC for any damages resulting from such improper use or sale. 6/6 Version: A07