TL7702A, TL7705A, TL7709A, TL7712A, TL7715A TL7702AY, TL7705AY, TL7709AY, TL7712AY, TL7715AY SUPPLY VOLTAGE SUPERVISORS SLVS028C - APRIL 1983 - REVISED AUGUST 1995 * * Power-On Reset Generator D, JG, OR P PACKAGE (TOP VIEW) Automatic Reset Generation After Voltage Drop * * * REF RESIN CT GND Wide Supply Voltage Range Precision Voltage Sensor 1 8 2 7 3 6 4 5 VCC SENSE RESET RESET Temperature-Compensated Voltage Reference * * FK PACKAGE (TOP VIEW) True and Complement Reset Outputs NC REF NC VCC NC Externally Adjustable Pulse Duration description 3 2 1 20 19 NC NC GND NC RESET NC NC 18 4 The TL77xxA family of monolithic integrated RESIN 17 SENSE 5 circuit supply voltage supervisors are specifically NC 16 NC 6 designed for use as reset controllers in microCT 15 RESET 7 computer and microprocessor systems. The 14 NC NC 8 supply voltage supervisor monitors the supply for 9 10 11 12 13 undervoltage conditions at the SENSE input. During power up, the RESET output becomes active (low) when VCC attains a value approaching 3.6 V. At this point (assuming that SENSE is above VIT+), the delay timer function activates a time NC - No internal connection delay after which outputs RESET and RESET go inactive (high and low respectively). When an undervoltage condition occurs during normal operation, outputs RESET and RESET go active. To ensure that a complete reset occurs, the reset outputs remain active for a time delay after the voltage at the SENSE input exceeds the positive-going threshold value. The time delay is determined by the value of the external capacitor CT : td = 1.3 x 104 x CT, where CT is in farads (F) and td is in seconds (s). During power down (assuming that SENSE is below VIT-), the outputs remain active until the VCC falls below a maximum of 2 V. After this, the outputs are undefined. An external capacitor (typically 0.1F for the TL77xxAC and TL77xxAI and typically 0.02 F for the TL77xxAM) must be connected to REF to reduce the influence of fast transients in the supply voltage. The TL77xxAC series are characterized for operation from 0C to 70C. The TL77xxAI series are characterized for operation from - 40C to 85C. The TL7702AM and TL7705AM are characterized for operation over the full military range of - 55C to 125C. AVAILABLE OPTIONS PACKAGED DEVICES TA SMALL OUTLINE (D) CHIP CARRIER (FK) CERAMIC DIP (JG) PLASTIC DIP (P) 0C to 70C TL7702ACD - TL7715ACD TL7702ACP - TL7715ACP - 40C to 85C TL7702AID - TL7715AID TL7702AIP - TL7715AIP - 55C to 125C TL7702AMFK TL7705AMFK CHIP FORM (Y) TL7702ACY - TL7715ACY TL7702AMJG TL7705AMJG Copyright 1995, Texas Instruments Incorporated PRODUCTION DATA information is current as of publication date. Products conform to specifications per the terms of Texas Instruments standard warranty. Production processing does not necessarily include testing of all parameters. On products compliant to MIL-STD-883, Class B, all parameters are tested unless otherwise noted. On all other products, production processing does not necessarily include testing of all parameters. POST OFFICE BOX 655303 * DALLAS, TEXAS 75265 5-3 TL7702A, TL7705A, TL7709A, TL7712A, TL7715A TL7702AY, TL7705AY, TL7709AY, TL7712AY, TL7715AY SUPPLY VOLTAGE SUPERVISORS SLVS028C - APRIL 1983 - REVISED AUGUST 1995 TL77xxAY chip information This chip, when properly assembled, displays characteristics similar to the TL77xxAC. Thermal compression or ultrasonic bonding may be used on the doped aluminum bonding pads. The chips may be mounted with conductive epoxy or a gold-silicon preform. BONDING PAD ASSIGNMENTS (1) (8) REF (7) RESIN CT (2) GND (1) (8) (2) (7) (3) TL77xxAY (4) (6) (5) VCC SENSE RESET RESET 72 (3) (6) CHIP THICKNESS: 15 MILS TYPICAL BONDING PADS: 4 x 4 MILS MINIMUM TJmax = 150C TOLERANCES ARE 10% (4) (5) 72 5-4 POST OFFICE BOX 655303 * DALLAS, TEXAS 75265 ALL DIMENSIONS ARE IN MILS TL7702A, TL7705A, TL7709A, TL7712A, TL7715A TL7702AY, TL7705AY, TL7709AY, TL7712AY, TL7715AY SUPPLY VOLTAGE SUPERVISORS SLVS028C - APRIL 1983 - REVISED AUGUST 1995 functional block diagram The functional block diagram is shown for illustrative purposes only; the actual circuit includes a trimming network to adjust the reference voltage and sense comparator trip point. VCC 8 Reference Voltage CT SENSE 100 A 3 7 6 RESET 5 RESET 1 REF R1 (see Note A) R2 (see Note A) RESIN GND 2 4 NOTES: A. TL7702A: R1 = 0 , R2 = open TL7705A: R1 = 7.8 k, R2 = 10 k TL7709A: R1 = 19.7 k, R2 = 10 k TL7712A: R1 = 32.7 k, R2 = 10 k TL7715A: R1 = 43.4 k, R2 = 10 k B. Terminal numbers shown are for the D, JG, or P package. C. Resistor values shown are nominal. timing diagram VCC and SENSE Threshold Voltage VCC 3.6 V RESET II II td VCC 2 V td Output Undefined Output Undefined POST OFFICE BOX 655303 * DALLAS, TEXAS 75265 5-5 TL7702A, TL7705A, TL7709A, TL7712A, TL7715A TL7702AY, TL7705AY, TL7709AY, TL7712AY, TL7715AY SUPPLY VOLTAGE SUPERVISORS SLVS028C - APRIL 1983 - REVISED AUGUST 1995 absolute maximum ratings over operating free-air temperature (unless otherwise noted) Supply voltage, VCC (see Note 1) . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 20 V Input voltage range, VI, RESIN . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . - 0.3 V to 20 V Input voltage range, VI, SENSE: TL7702A (see Note 2) . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . - 0.3 V to 6 V TL7705A . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . - 0.3 V to 20 V TL7709A . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . - 0.3 V to 20 V TL7712A, TL7715A . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . - 0.3 V to 20 V High-level output current, IOH, RESET . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . - 30 mA Low-level output current, IOL, RESET . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 30 mA Continuous total power dissipation . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . See Dissipation Rating Table Operating free-air temperature range, TA: TL77xxAC . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 0C to 70C TL77xxAl . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . - 40C to 85C TL7702AM, TL7705AM . . . . . . . . . . . . . . . . . . . . . - 55C to 125C Storage temperature range, Tstg . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . - 65C to 150C Case temperature for 60 seconds, TC: FK package . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 260C Lead temperature 1,6 mm (1/16 inch) from case for 10 seconds: D or P package . . . . . . . . . . . . . . . . . 260C Lead temperature 1,6 mm (1/16 inch) from case for 60 seconds: JG package . . . . . . . . . . . . . . . . . . . . 300C 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 voltage values are with respect to the network ground terminal. DISSIPATION RATING TABLE PACKAGE TA 25C POWER RATING DERATING FACTOR ABOVE TA = 25C TA = 70C POWER RATING TA = 85C POWER RATING TA = 125C POWER RATING D 725 mW 5.8 mW/C 464 mW 377 mW 145 mW FK 1375 mW 11.0 mW/C 880 mW 715 mW 275 mW JG 1050 mW 8.4 mW/C 672 mW 546 mW 210 mW P 1000 mW 8.0 mW/C 640 mW 520 mW 200 mW recommended operating conditions TL77xxAC, TL77xxAI Supply voltage, VCC High-level input voltage at RESIN, VIH MIN MAX MIN MAX 3.5 18 3.6 10 2 Low-level input voltage at RESIN, VIL Input SENSE, VI I p voltage, l g SENSE 2 0.6 0 See Note 2 0 See Note 2 TL7705A 0 10 0 10 TL7709A 0 15 TL7712A 0 20 TL7715A 0 Low-level output current, RESET, IOL Timing capacitor, CT TL77xxAC TL77xxAI V V V 20 - 16 - 16 mA 16 16 mA 10 10 F 0 70 - 40 85 TL7702AM, TL7705AM UNIT V 0.6 TL7702A High-level output current, RESET, IOH Operating p range, g TA Op i g ffree-air i temperature TL77xxAM C - 55 125 NOTE 2: For proper operation of the TL7702A, the voltage applied to the SENSE terminal should not exceed VCC -1 V or 6 V, whichever is less. 5-6 POST OFFICE BOX 655303 * DALLAS, TEXAS 75265 TL7702A, TL7705A, TL7709A, TL7712A, TL7715A TL7702AY, TL7705AY, TL7709AY, TL7712AY, TL7715AY SUPPLY VOLTAGE SUPERVISORS SLVS028C - APRIL 1983 - REVISED AUGUST 1995 electrical characteristics over recommended operating conditions (unless otherwise noted) TEST CONDITIONS PARAMETER VOH VOL High-level output voltage, RESET Low-level output voltage, RESET IOH = -16 mA IOL = 16 mA Vref Reference voltage TA = 25C VIT - N Negative i going i iinput threshold h h ld voltage, voltage l Negative-going SENSE TL77xxAC, TL77xxAI MIN II IOH Input current, SENSE V TL7702A 2.48 2.53 2.58 TL7705A 4.5 4.55 4.6 TA = 25C 7.5 7.6 7.7 TL7712A 10.6 10.8 11 TL7715A 13.2 13.5 13.8 TL7709A 15 TA = 25C High-level output current, RESET mV V 20 35 45 VI = 2.4 V to VCC VI = 0.4 V TL7702A V 10 TL7715A Input current, current RESIN V 2.58 TL7712A II V 2.53 TL7709A UNIT 0.4 2.48 TL7705A Hy Hysteresis, i SENSE (V ( IT + - VIT -) MAX VCC -1.5 TL7702A Vhys TYP 20 -100 Vref < VI < VCC - 1.5 V VO = 18 V 0.5 IOL Low-level output current, RESET VO = 0 ICC Supply current All inputs and outputs open All electrical characteristics are measured with 0.1-F capacitors connected at REF, CT, and VCC to GND. 1.8 A 2 A 50 A - 50 A 3 mA switching characteristics over recommended operating conditions (unless otherwise noted) TEST CONDITIONS PARAMETER CT = 0.1 F Output pulse duration Input pulse duration at RESIN tw(S) Pulse duration at SENSE input to switch outputs VIH = VIT - + 200 mV, VIL = VIT - - 200 mV tpd Propagation delay time from RESIN to RESET VCC = 5 V tr tf RESET RESET RESET TL77xxAC, TL77xxAI MIN TYP MAX 0.65 1.2 2.6 RESET s 0.4 s 2 s 1 0.2 VCC = 5 V, V See S Note N 3 UNIT 3.5 3.5 0.2 s s s All switching characteristics are measured with 0.1-F capacitors connected at REF and VCC to GND. NOTE 3: The rise and fall times are measured with a 4.7-k load resistor at RESET and RESET. POST OFFICE BOX 655303 * DALLAS, TEXAS 75265 5-7 TL7702A, TL7705A, TL7709A, TL7712A, TL7715A TL7702AY, TL7705AY, TL7709AY, TL7712AY, TL7715AY SUPPLY VOLTAGE SUPERVISORS SLVS028C - APRIL 1983 - REVISED AUGUST 1995 electrical characteristics over recommended operating conditions (unless otherwise noted) TL7702AM, TL7705AM TEST CONDITIONS PARAMETER VOH VOL High-level output voltage, RESET IOH = -16 mA IOL = 16 mA Vref Reference voltage VIT - Negative going input threshold voltage, Negative-going SENSE Vhys Hysteresis SENSE (VIT + - VIT -) II Input current, current RESIN II IOH Input current, SENSE Low-level output voltage, RESET TL7702AM TL7705AM TL7702AM TL7705AM MIN TYP TL7702AM UNIT VCC -1.5 VCC = 3 3.6 6 V to 10 V V 0.4 V V 2.38 2.53 2.63 2.38 2.53 2.63 4.25 4.55 4.7 10 VCC = 3 3.6 6 V to 10 V 20 -100 Vref < VI < VCC - 1.5 V VO = 10 V 0.5 IOL Low-level output current, RESET VO = 0 ICC Supply current All inputs and outputs open All electrical characteristics are measured with 0.02-F capacitors connected at REF, CT, and VCC to GND. 1.8 V mV 15 VI = 2.4 V to VCC VI = 0.4 V High-level output current, RESET MAX A 2 A 50 A - 50 A 3 mA switching characteristics over recommended operating conditions (unless otherwise noted) TEST CONDITIONS PARAMETER tw(S) Pulse duration at SENSE input to switch outputs VIH = VIT - + 200 mV, VIL = VIT - - 200 mV tpd Propagation delay time, RESIN to RESET VCC = 5 V tr tf MIN TYP MAX s RESET 0.2* RESET 3.5* RESET VCC = 5 V, V S Note See N 3 RESET 3.5* 0.2* POST OFFICE BOX 655303 * DALLAS, TEXAS 75265 UNIT s 2* 1.5 * On products compliant to MIL-STD-883, Class B, this parameter is not production tested. All switching characteristics are measured with 0.02-F capacitors connected at REF and VCC to GND. NOTE 3: The rise and fall times are measured with a 4.7-k load resistor at RESET and RESET. 5-8 TL7702AM, TL7705AM s s TL7702A, TL7705A, TL7709A, TL7712A, TL7715A TL7702AY, TL7705AY, TL7709AY, TL7712AY, TL7715AY SUPPLY VOLTAGE SUPERVISORS SLVS028C - APRIL 1983 - REVISED AUGUST 1995 electrical characteristics over recommended operating conditions, TA = 25C (unless otherwise noted) TEST CONDITIONS PARAMETER Vref VIT - Vhys TL77xxAY MIN TYP Reference voltage 2.53 N i going i iinput threshold h h ld voltage, l Negative-going Negative voltage SENSE Hysteresis, H y i SENSE (V ( IT + - VIT -) MAX TL7702A 2.53 TL7705A 4.55 TL7709A 7.6 TL7712A 10.8 TL7715A 13.5 TL7702A 10 TL7705A 15 TL7709A 20 TL7712A 35 TL7715A UNIT V V mV V 45 II Input current, SENSE TL7702A Vref < VI < VCC - 1.5 V ICC Supply current All inputs and outputs open All electrical characteristics are measured with 0.1-F capacitors connected at REF, CT, and VCC to GND. 0.5 A 1.8 mA switching characteristics over recommended operating conditions, TA = 25C (unless otherwise noted) TEST CONDITIONS PARAMETER Output pulse duration CT = 0.1 F All switching characteristics are measured with 0.1-F capacitors connected at REF and VCC to GND. POST OFFICE BOX 655303 * DALLAS, TEXAS 75265 TL77xxAY MIN TYP 1.2 MAX UNIT s 5-9 TL7702A, TL7705A, TL7709A, TL7712A, TL7715A TL7702AY, TL7705AY, TL7709AY, TL7712AY, TL7715AY SUPPLY VOLTAGE SUPERVISORS SLVS028C - APRIL 1983 - REVISED AUGUST 1995 PARAMETER MEASUREMENT INFORMATION Voltage Drop tw(S) SENSE VIT+ VIT- VIT+ 0V VIH RESIN Undefined 2V 0.7 V tf tr 90% 90% RESET VIL tpd 90% 50% 10% td 50% 10% 10% 10% tr Figure 1. Voltage Waveforms 5-10 II II td td tf 90% RESET VOH (RESET) POST OFFICE BOX 655303 * DALLAS, TEXAS 75265 10% VOL(RESET) TL7702A, TL7705A, TL7709A, TL7712A, TL7715A TL7702AY, TL7705AY, TL7709AY, TL7712AY, TL7715AY SUPPLY VOLTAGE SUPERVISORS SLVS028C - APRIL 1983 - REVISED AUGUST 1995 TYPICAL CHARACTERISTICS ASSERTION TIME vs LOAD RESISTANCE DEASSERTION TIME vs LOAD RESISTANCE 42 7 VCC = 5 V CT = 0.1 F CL = 10 pF TA = 25C 6 t - Deassertion Time - s t - Assertion Time - ns 38 34 30 VCC = 5 V CT = 0.1 F CL = 10 pF TA = 25C RESET tr 26 5 4 RESET tf 3 2 RESET tr 22 RESET tf 1 18 0 0 2 4 6 8 RL - Load Resistance - k 10 0 2 8 4 6 RL - Load Resistance - k Figure 2 Figure 3 ASSERTION TIME vs LOAD CAPACITANCE DEASSERTION TIME vs LOAD CAPACITANCE 44 3.6 VCC = 5 V CT = 0.1 F RL = 4.7 k TA = 25C 36 RESET tr 32 28 RESET tf 24 VCC = 5 V CT = 0.1 F RL = 4.7 k TA = 25C 3.2 t - Deassertion Time - s 40 t - Assertion Time - ns 10 2.8 RESET tf 2.4 2 RESET tr 1.6 1.2 0.8 20 0 25 50 75 100 125 150 CL - Load Capacitance - pF 175 200 0 25 Figure 4 50 75 100 125 150 CL - Load Capacitance - pF 175 200 Figure 5 For proper operation both RESET and RESET should be terminated with resistors of similar value. Failure to do so may cause unwanted plateauing in either output waveform during switching. POST OFFICE BOX 655303 * DALLAS, TEXAS 75265 5-11 TL7702A, TL7705A, TL7709A, TL7712A, TL7715A TL7702AY, TL7705AY, TL7709AY, TL7712AY, TL7715AY SUPPLY VOLTAGE SUPERVISORS SLVS028C - APRIL 1983 - REVISED AUGUST 1995 APPLICATION INFORMATION 5V 12 V 8 TL7712A 3 RESET REF CT 7 2 6 CT RESET 5 RESIN 3 CT 10 k 6 RESET 1 REF GND 4 CT 0.1 F GND 8 CT(F) = VCC 7 SENSE 2 RESET 5 RESIN 3 TL7712A 6 RESET 1 REF CT GND 4 CT td(s) 1.3 x 104 10 k 0.1 F -12 V Figure 6. Multiple Power Supply System Reset Generation 5V 8 VCC 7 SENSE 2 5 RESET RESIN TL7705A 6 RESET 3 1 CT REF GND 4 CT 10 k VCC RESET TMS7000 10 k VSS 0.1 F GND CT(F) = td(s) 1.3 x 104 Figure 7. Reset Controller for TMS7000 System Terminal numbers shown are for the D, JG, and P packages. 5-12 POST OFFICE BOX 655303 System Reset TL7705A 1 0.1 F 10 k VCC SENSE 10 k GND 4 8 22 k VCC 7 SENSE 2 5 RESET RESIN * DALLAS, TEXAS 75265 10 k TL7702A, TL7705A, TL7709A, TL7712A, TL7715A TL7702AY, TL7705AY, TL7709AY, TL7712AY, TL7715AY SUPPLY VOLTAGE SUPERVISORS SLVS028C - APRIL 1983 - REVISED AUGUST 1995 APPLICATION INFORMATION 5V A7805 INPUT 4.7 k 8 OUTPUT VCC 7 SENSE Input System RESET RESET 5 COMMON TL7705A 6 RESET 1 CT REF GND 3 CI 25 k CT CO 4 S G Q1 2N3994 D 4.7 k 0.1 F Figure 8. Eliminating Undefined States Using a P-Channel JFET VCC 750 10 k Q1 2N4036 8 SENSE Input 2.7 k VCC 7 5 RESET SENSE System RESET TL77xxA 2 3 RESET RESIN CT REF 6 1 10 k 1 k GND CT 4 0.1 F Figure 9. Eliminating Undefined States Using a pnp Transistor Terminal numbers shown are for the D, JG, and P packages. POST OFFICE BOX 655303 * DALLAS, TEXAS 75265 5-13 TL7702A, TL7705A, TL7709A, TL7712A, TL7715A TL7702AY, TL7705AY, TL7709AY, TL7712AY, TL7715AY SUPPLY VOLTAGE SUPERVISORS SLVS028C - APRIL 1983 - REVISED AUGUST 1995 5-14 POST OFFICE BOX 655303 * DALLAS, TEXAS 75265 IMPORTANT NOTICE Texas Instruments (TI) reserves the right to make changes to its products or to discontinue any semiconductor product or service without notice, and advises its customers to obtain the latest version of relevant information to verify, before placing orders, that the information being relied on is current. TI warrants performance of its semiconductor products and related software to the specifications applicable at the time of sale in accordance with TI'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, INTENDED, AUTHORIZED, OR WARRANTED TO BE SUITABLE FOR USE IN LIFE-SUPPORT APPLICATIONS, DEVICES OR SYSTEMS OR OTHER CRITICAL APPLICATIONS. Inclusion of TI products in such applications is understood to be fully at the risk of the customer. Use of TI products in such applications requires the written approval of an appropriate TI officer. Questions concerning potential risk applications should be directed to TI through a local SC sales office. In order to minimize risks associated with the customer's applications, adequate design and operating safeguards should be provided by the customer to minimize inherent or procedural hazards. TI assumes no liability for applications assistance, customer product design, software performance, or infringement of patents or services described herein. Nor does TI 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. Copyright 1995, Texas Instruments Incorporated