texas instruments TL145406 TRIPLE RS-232 DRIVERS/RECEIVERS handbook
Contents
1. DRIVER OUTPUT CURRENT DRIVER vs VOLTAGE TRANSFER CHARACTERISTICS OUTPUT VOLTAGE 12 20 Vpp 9 V n 16 Vss 9V TA 25 C VoL V 1 9 V 6 lt T E 8 9 ti S 3 4 o o o Q 5 m 5 a y qo o E un 3 kQ ae Xy 8 Load Line 12 9 VoH VI 0 8 V 16 2 20 0 02 04 06 08 1 12 14 16 18 2 16 12 8 4 0 4 8 12 16 Vu Input Voltage V VQ Output Voltage V Figure 7 Figure 8 DRIVER DRIVER SHORT CIRCUIT OUTPUT CURRENT SLEW RATE vs vs FREE AIR TEMPERATURE LOAD CAPACITANCE 12 1000 Vpp 9 V lt 9 i Vss 9V E losL Vi 1 9 V RL 3kQ a TA 25 C S 6 a 5 100 o s 3 2 o 5 tc 3 Vpp 9 V o Vss 9V I 3 vozo 6 10 2 6 6 o los H VI 0 8 V 9 9 12 1 0 10 20 30 40 50 60 70 10 100 1000 10000 TA Free Air Temperature C CL Load Capacitance pF Figure 9 Figure 10 45 T EXAS INSTRUMENTS POST OFFICE BOX 655303 9 DALLAS TEXAS 75265 7 TL145406 TRIPLE RS 232 DRIVERS RECEIVERS SLLS185A DECEMBER 1994 REVISED MARCH 1995 TYPICAL CHARACTERISTICS RECEIVER RECEIVER INPU2. 260 C T Stresses beyond those listed under absolute maximum ratings may cause permanent damage to the device These are stress ratings only and functional operation of the device at these or any other conditions beyond those indicated under recommended operating conditions is not implied Exposure to absolute maximum rated conditions for extended periods may affect device reliability NOTE 1 All voltages are with respect to the network ground terminal DISSIPATION RATING TABLE TA lt 25 C DERATING FACTOR TA lt 70 C POWER RATING ABOVE Ta 25 C POWER RATING PACKAGE DW 1256 mW 9 7 mW C 819 mW N 1943 mW 14 9 mW C 1272 mW Dissipation ratings are the inverse of the traditional junction to case thermal resistance RgJA recommended operating conditions UU pmo wx UN Permet Ger E33 Reese eee EE High level output current loH Receiver Driver Low level output current IOL Receiver Operating free air temperature TA E a 35 TEXAS INSTRUMENTS POST OFFICE BOX 655303 9 DALLAS TEXAS 75265 3 TL145406 TRIPLE RS 232 DRIVERS RECEIVERS SLLS185A DECEMBER 1994 REVISED MARCH 1995 supply currents PARAMETER TEST CONDITIONS MIN TYP MAX UNIT Vpp 9V Vss 9V All inputs at 1 9 V No load IDD Supply current from Vpp All inputs at 0 8 V No load All inputs at 1 9 V No load Iss Supply current from Vss All inputs at 0 8 V No load Icc Supply current
3. from Voc All inputs at 5 V Noload Vcc 5 V 132 20 DRIVER SECTION electrical characteristics over recommended operating free air temperture range Vpp 9 V Vss 9 V Vcc 5 V unless otherwise noted High level short circuit output current _ i E 7 u loS H see Note 3 Vi 20 8V Vo 0or Vss See Figure 1 4 5 10 19 5 los L Low level short circuit output current VIH 2 V Vo 20or Vpp See Figure 1 4 5 10 19 5 rO Output resistance see Note 4 Vcc Vpp Vss 0 Vo 2 2Vto2V NOTES 2 Thealgebraic convention where the more positive less negative limit is designated as maximum is used in this data sheet for logic levels only e g if 10 V is maximum the typical value is a more negative voltage 3 Output short circuit conditions must maintain the total power dissipation below absolute maximum ratings 4 Test conditions are those specified by EIA TIA 232 E and as listed above switching characteristics Vcc 5 V Vpp 12 V Vss 12 V TA 25 C PARAMETER TEST CONDITIONS MIN TYP MAX UNIT tPLH Propagation delay time low to high level output RL 3 kQ to 7 kO CL 15 pF 500 tPHL Propagation delay time high to low level output See Figure 3 75 175 RL 3 kQ to 7 kQ C 15 pF 60 100 ns See Figure 3 tTLH Transition time low to high level output RL 3kQ to 7 kQ C 2500 pF 17 25 See Figure 3 and Note 5 h RL 3 kQ to 7 kQ CL 15 pF 40 75 T WT See Figure 3 tTHL Transition
4. time high to low level output RL 3kQto7kQ C 2500 pF 15 25 See Figure 3 and Note 6 h NOTES 5 Measured between 3 V and 3 V points of the output waveform EIA TIA 232 E conditions All unused inputs are tied 6 Measured between 3 V and 3 V points of the output waveform EIA TIA 232 E conditions All unused inputs are tied d TEXAS INSTRUMENTS 4 POST OFFICE BOX 655303 9 DALLAS TEXAS 75265 TL145406 TRIPLE RS 232 DRIVERS RECEIVERS SLLS185A DECEMBER 1994 REVISED MARCH 1995 RECEIVER SECTION electrical characteristics over recommended operating conditions unless otherwise noted PARAMETER TEST CONDITIONS MIN TYPt MAX UNIT 0 5 VIH 0 75 V 2 6 4 5 Inputs open 2 6 See Figure 5 V 25 V See Figure 5 V 3 V See Figure 5 T All typical values are at TA 25 C Vcc 5 Vpp 9 V and Vgs 9 V switching characteristics Vcc 5 V Vpp 12 V Vss 12 V TA 25 C L 50 pF ee Figure 6 PARAMETER MEASUREMENT INFORMATION loS L VDD XD V ND VDD Vcc SR Vcc los H In T Vss or GND VI XD 4 SI p Vo RL 3kQ A L w il Vss Vss Figure 1 Driver Test Circuit Figure 2 Driver Test Circuit for lj and liL for Von VoL los u and los L d TEXAS INSTRUMENTS POST OFFICE BOX 655303 DALLAS TEXAS 75265 5 TL145406 TRIPLE RS 232 DRIVERS RECEIVERS SLLS185A DECEMBER 1994 REVISED MARCH 1995 PARAMETER ME
5. ASUREMENT INFORMATION 3V Input 1 5V 1 5V VDD 0 a Voc tPHL M h tPLH Pulse Generator e Von See Note A Note B cadi sns spe M Output 10 WAY 1 V OL tTHL er gt tTLH TEST CIRCUIT VOLTAGE WAVEFORMS NOTES A The pulse generator has the following characteristics ty 25 us PRR 20 kHz Zo 50 Q tr tf lt 50 ns B Oy includes probe and jig capacitance Figure 3 Driver Test Circuit and Voltage Waveforms VDD VDD CG los Vcc e VI VIT VI KE Jon NL 4 Von VoL Cl loL Vss Vss ll Figure 4 Receiver Test Circuit Figure 5 Receiver Test Circuit for los for Vit Von and VoL 4V Input 50 50 0 Td Vcc Pulse rt Generator See Note A GE Note B Output gt tTLH TEST CIRCUIT Im gt VOLTAGE WAVEFORMS NOTES A The pulse generator has the following characteristics tw 25 us PRR 20 kHz Zo 50 Q tr tt lt 50 ns B CI includes probe and jig capacitance Figure 6 Receiver Propagation and Transition Times 35 TEXAS INSTRUMENTS 6 POST OFFICE BOX 655303 9 DALLAS TEXAS 75265 TL145406 TRIPLE RS 232 DRIVERS RECEIVERS SLLS185A DECEMBER 1994 REVISED MARCH 1995 TYPICAL CHARACTERISTICS
6. T THRESHOLD VOLTAGE INPUT THRESHOLD VOLTAGE vs vs FREE AIR TEMPERATURE SUPPLY VOLTAGE 2 4 2 VIT 22 1 8 E 2 1 6 I I o 1 8 o 1 4 S S 9 16 9 12 gt 3 14 1 E o o VIT E 1 2 E 0 8 IT 3 1 3 0 6 0 8 0 4 0 6 0 2 0 4 0 0 10 20 30 40 50 60 70 2 3 4 5 6 7 8 9 10 TA Free Air Temperature C Vcc Supply Voltage V Figure 11 Figure 12 RECEIVER HEGEIVEH NOISE REJECTION pis seen MAXIMUM SUPPLY VOLTAGE Vec 5V vs Ta 25 C FREE AIR TEMPERATURE See Note A 5 Cc 300 pF 4 gt o E 2 Cc 500 pF i P s Cc 12 pF M a 2 E 2 Cc 100 pF 1 gt 0 10 40 100 400 1000 4000 10000 tw Pulse Duration ns RL 2 3 kQ from each output to GND NOTE A This figure shows the maximum amplitude of a positive going pulse that starting from 0 does not cause a change of the output level Figure 13 POST O 0 10 20 30 40 50 60 70 TA Free Air Temperature C Figure 14 d TEXAS INSTRUMENTS FFICE BOX 655303 9 DALLAS TEXAS 75265 TL145406 TRIPLE RS 232 DRIVERS RECEIVERS SLLS185A DECEMBER 1994 REVISED MARCH 1995 APPLICATION INFORMATION Diodes placed in series with the Vpp and Vgs leads protect the TL 145406 during the fault condition in which the device outputs are shorted to 15 V and the power supplies are at low Diodes also provide low impedance paths to ground V Output 15V TL145406 Figure 15 Power Supply Protection to Meet Power Off Faul
7. THE CUSTOMER S RISK In order to minimize risks associated with the customer s applications adequate design and operating safeguards must be provided by the customer to minimize inherent or procedural hazards Tl assumes no liability for applications assistance or customer product design TI does not warrant or represent that any license either express or implied is granted under any patent right copyright mask work right or other intellectual property right of TI covering or relating to any combination machine or process in which such semiconductor products or services might be or are used Te publication of information regarding any third party s products or services does not constitute Tl s approval warranty or endorsement thereof Copyright 1998 Texas Instruments Incorporated
8. TL145406 TRIPLE RS 232 DRIVERS RECEIVERS SLLS185A DECEMBER 1994 REVISED MARCH 1995 Meets or Exceeds the Requirements of DW OR N PACKAGE ANSI EIA TIA 232 E and ITU V 28 TOP VIEW Designed to Support Data Rates Up to 120 kbits s Over 3 m Cable ESD Protection Exceeds 5 kV on All Pins Flow Through Design e Wide Driver Supply Voltage 44 5 V to 15 V Functionally Interchangeable With Motorola MC145406 and Texas Instruments SN75C1406 description The TL145406 is a bipolar device containing three independent drivers and receivers that are used to interface data terminal equipment DTE with data circuit terminating equipment DCE The drivers and receivers of the TL145406 are similar to those of the SN75188 quadruple driver and SN75189A quadruple receiver respectively The pinout matches the flow through design of the SN75C1406 to reduce the board space required and allow easy interconnection The bipolar circuits and processing of the TL145406 provide a rugged low cost solution for this function at the expense of quiescent power and external passive components relative to the SN75C1406 The TL145406 complies with the requirements of the EIA TIA 232 E and ITU formerly CCITT V 28 standards These standards are for data interchange between a host computer and peripheral at signalling rates up to 20 kbit s The switching speeds of the TL145406 are fast enough to support rates up to 120 kbit s with lower cap
9. acitive loads shorter cables Interoperability at the higher signalling rates cannot be assured unless the designer has design control of the cable and the interface circuits at both ends For interoperability at signalling rates to 120 kbit s use of EIA TIA 423 B ITU V 10 and EIA TIA 422 B ITU V 11 standards are recommended The TL145406 is characterized for operation from 0 C to 70 C logic symbolt logic diagram positive logic Typical of each receiver 1RA 1 1RY yp 4 13 2RA 2RY 2 4 6 15 13 11 6 11 RA RY 3RA 3RY 3 14 1DY 1DA Typical of each driver 2DY 3 2DA gy 7 10 45A 5s 3 5 7 14 12 10 BA T This symbol is in accordance with ANSI IEEE Std 91 1984 and IEC Publication 617 12 Please be aware that an important notice concerning availability standard warranty and use in critical applications of Texas Instruments semiconductor products and disclaimers thereto appears at the end of this data sheet PRODUCTION DATA information is current as of publication date Copyright 1995 Texas Instruments Incorporated Products conform to specifications per the terms of Texas Instruments eU ofall peran Production processing does not necessarily include X TEXAS INSTRUMENTS POST OFFICE BOX 655303 9 DALLAS TEXAS 75265 1 TL145406 TRIPLE RS 232 DRIVERS RECEIVERS SLLS185A DECEMBER 1994 REVISED MARCH 1995 schematic each driver l To Other Drivers 11 6 KQ 9 4 KQ Inpu
10. t Conditions of ANSI EIA TIA 232 E d TEXAS INSTRUMENTS POST OFFICE BOX 655303 DALLAS TEXAS 75265 IMPORTANT NOTICE Texas Instruments and its subsidiaries TI reserve the right to make changes to their products or to discontinue any product or service without notice and advise customers to obtain the latest version of relevant information to verify before placing orders that information being relied on is current and complete All products are sold subject to the terms and conditions of sale supplied at the time of order acknowledgement including those pertaining to warranty patent infringement and limitation of liability TI warrants performance of its semiconductor products to the specifications applicable at the time of sale in accordance with Tl s standard warranty Testing and other quality control techniques are utilized to the extent TI deems necessary to support this warranty Specific testing of all parameters of each device is not necessarily performed except those mandated by government requirements CERTAIN APPLICATIONS USING SEMICONDUCTOR PRODUCTS MAY INVOLVE POTENTIAL RISKS OF DEATH PERSONAL INJURY OR SEVERE PROPERTY OR ENVIRONMENTAL DAMAGE CRITICAL APPLICATIONS TI SEMICONDUCTOR PRODUCTS ARE NOT DESIGNED AUTHORIZED OR WARRANTED TO BE SUITABLE FOR USE IN LIFE SUPPORT DEVICES OR SYSTEMS OR OTHER CRITICAL APPLICATIONS INCLUSION OF TI PRODUCTS IN SUCH APPLICATIONS IS UNDERSTOOD TO BE FULLY AT
11. t DAx kd ai 75 8 Q 3200 DYx Output 4 2 KQ GND A To Other Drivers SS Se 3 3 KQ 68 5 Q Vss e To Other Dri vers Resistor values shown are nominal schematic each receiver E To Other Receivers 9 KQ 5KQ 1 66 KQ e esp RYx Output 2 kQ Input RAx SEN d 10 ko e S e GND To Other Receivers Resistor values shown are nominal d TEXAS INSTRUMENTS POST OFFICE BOX 655303 9 DALLAS TEXAS 75265 TL145406 TRIPLE RS 232 DRIVERS RECEIVERS SLLS185A DECEMBER 1994 REVISED MARCH 1995 absolute maximum ratings over operating free air temperature range unless otherwise noted t Supply voltage Voc see Note 1 n 10V Supply voltage Vpp see Note 1 15V Supply voltage Ves see Note 1 2 eee eee eR n 15V Input voltage range Driver ssssssssseese IH 15V to7 V nce d T 30 V to 30 V Driver output voltage range ene ene 15V to 15V Receiver low level output current 20 mA Continuous total power dissipation See Dissipation Rating Table Operating free air temperature range TA 0 C to 70 C Storage temperature range Tstg 16 cece ee nnn 65 C to 150 C Lead temperature 1 6 mm 1 16 inch from case for 10 seconds
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texas instruments TL145406 TRIPLE RS 232 DRIVERS/RECEIVERS handbook