TDE1767 TDE1787 Interface circuit (relay and Lamp-driver) Features ■ Open ground protection ■ High output current ■ Adjustable short-circuit protection ■ Internal thermal protection with external reset ■ Large supply voltage range ■ Alarm output ■ Input voltage can be higher than VCC ■ Output voltage can be lower than ground (VCC - VO ≤ VCC[max]) DIP-8 Description The TDE1767, TDE1767A, TDE1787, TDE1787A are a monolithic amplifiers designed for high current and high voltage applications, specifically to drive lamps, relays, stepping motors. The devices are assentially blow-out proof. The output is prois protected from short-circuits with the positive supply or drive. In addition thermal shut down is provited to keep the IC from overheathing. An alarm output suitable for driving a LED is provited. This LED, normally on (if referred to ground), will die out or flash during an overload depending on the state of the reset input. If internal dissipation becomes too high, the driver will shut down to prevent excessive heating. The output stays null after the overheating is off, if the reset input is low. If high the output will alternatively switch-on and off until the overload is removed. Table 1. March 2007 The devices operates over a wide range voltages from standard 15V operational amplifier supplies to the single +6V or +48V used for industrial electric systems. Input voltages can be higher than in the VCC. The output is low in open ground conditions. Device summary Part number Package Packaging TDE1767DP DIP8 Tube TDE1767ADP DIP8 Tube TDE1787DP DIP8 Tube TDE1787ADP DIP8 Tube Rev 2 1/16 www.st.com 16 Contents TDE1767 - TDE1787 Contents 1 Pin connections . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 3 2 Maximum ratings . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 3 2.1 Absolute maximum ratings . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 3 2.2 Thermal data . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 3 3 Electrical characteristcs . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 4 4 Schematic diagrams . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 6 5 Typical characteristics . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 7 6 Typical application . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 9 7 Using alarm output . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 11 8 Mechanical data . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 13 9 Revision history . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 15 2/16 TDE1767 - TDE1787 1 Pin connections Pin connections Figure 1. Pin connection (top view) ALARM OUTPUT 1 8 CURRENT LIMIT INVERTING INPUT 2 7 VCC NON INVERTING INPUT 3 6 OUTPUT GND 4 5 RESET D03IN1475 2 Maximum ratings 2.1 Absolute maximum ratings Table 2. Absolute maximum ratings Symbol TDE1767 TDE1787 Unit Supply voltage 60 50 V VID Input differential voltage 60 50 V - 10 to + 60 - 10 to + 50 V 1.3 1.2 A Vl Input voltage IO Output current Vl(reset) Reset input voltage - 0.5 to + 60 - 0.5 to + 50 V IOA Alarm output current - 10 to + 20 - 10 to + 20 mA Ptot Power dissipation Tstg Internally Limited mW Operating ambient temperature range - 25 to + 85 - 25 to + 85 °C Storage temperature range - 65 to + 150 - 65 to + 150 °C Thermal data Table 3. Symbol Note: TDE1767A TDE1787A VCC Toper 2.2 Parameter Thermal data Parameter Value Unit Rth(JC) Thermal resistance junction-case max 30 °C/W Rth(JA) Thermal resistance junction-ambient max 80 °C/W Devices bonded on a 40 cm2 glass-epoxy printed circuit 0.15 cm thick with 4 cm2 of copper. 3/16 Electrical characteristcs 3 TDE1767 - TDE1787 Electrical characteristcs TDE1767A: - 25°C ≤ TA ≤ 85°C, 6V ≤ VCC ≤ 55V, Io ≤ 500mA, TJ ≤ 150°C TDE1767: - 25°C ≤ TA ≤ 85°C, 6V ≤ VCC ≤ 45V, Io ≤ 500mA, TJ ≤ 150°C TDE1787A: - 25°C ≤ TA ≤ 85°C, 6V ≤ VCC ≤ 55V, Io ≤ 300mA, TJ ≤ 150°C TDE1787: 25°C ≤ TA ≤ 85°C, 6V ≤ VCC ≤ 45V, Io ≤ 300mA, TJ ≤ 150°C Unless otherwise specified. Table 4. Symbol VIO Electrical characteristics Parameter Input offset voltage Test condition Min. Typ. Max. Unit 2 50 mV 5.8 8 mA Output high (VCC = VCCmax, (TJ = 150°C) 5 7 mA Output low (VCC = VCCmax, (TA = 25°C) 1.5 4 mA 15 100 µA (note 1) (measured on pin 4) Output high (TA = 25°C) ICC IIB Imput bias current VCM Common-mode input voltage range TDE1787A, TDE1767A TDE1787, TDE1767 1 1 60 45 V V VI Input voltage range Vref ≥ 1V (figure1, note2) TDE1787A, TDE1767A TDE1787, TDE1767 1 1 60 45 V V ISC Short circuit output current VCC = 35V, t = 10ms TDE1767A: RSC = 0.22Ω TDE1787A: RSC = 0.33Ω Vsense Output limit sense voltage VO = VCC -2V, t = 10ms 130 150 170 mV Vsense Output limit sense voltage VO = 0V, t = 10ms 120 140 165 mV VO(sat) Output high VI+- VI- ≥ 50mV; RSC = 0; VCC = 30V TDE1787A, TDE1767A: TJ = 25°C TDE1787, TDE1767: TJ = 25°C Output saturation voltage TDE1787A, TDE1767A: TJ = 150°C TDE1787, TDE1767: TJ = 150°C 1 1 1.1 1.2 V V 1.1 1.1 1.2 1.3 V V 100 µA IOL 4/16 Power supply current Output leakage current Output low 700 380 mA mA TDE1767 - TDE1787 Table 4. Symbol IA Ireset Electrical characteristcs Electrical characteristics (continued) Parameter Available alarm output current Test condition Min. Typ. Output source current VAH = VCC-2.5V -4 -5 mA Output sink current (in thermal shut-down) VA = 1.4V 5 10 mA Reset input current 2 Vth-reset Reset threhold Output leakage current Note: open ground Max. 40 Unit µA 1.4 A 10 µA 1 The offset voltage given is the maximum value of different input voltage reguired to drive the output voltage whitin 2 V of the ground or the supply voltage. 2 Input voltage range is indipendent of the supply voltage. 5/16 Schematic diagrams 4 TDE1767 - TDE1787 Schematic diagrams Figure 2. - Schematic diagram + 2 3 1 210Ω 3KΩ 600 Ω 2KΩ 7 20 KΩ 5KΩ 8 300 Ω 20 pF 2KΩ 200 Ω 2KΩ 6 10 KΩ 3.6KΩ 1.8 KΩ 1.1KΩ 8.4KΩ 20 KΩ 300Ω 20 KΩ 10 KΩ 3 KΩ 5 4 D03IN1476 Figure 3. Equivalent schematic 7 G1 2 INPUTS 3 ALARM OUTPUT RESET VCC RSC G2 8 - AMP CURRENT LIMIT + 1 SHORT-CIRCUIT PROTECTION 6 5 OUTPUT THERMAL PROTECTION RL 4 GROUND D03IN1477 Vl VCC +6V<VCC<VCC(max) Vl(max) 1 0 2 VREF ≥1V 3 E E The reference input can be the inverting or non-inverting one 6/16 D03IN1478 TDE1767 - TDE1787 5 Typical characteristics Typical characteristics Figure 4. Peak short-circuit vs limiting resistor ICS (A) D03IN1479 Figure 5. IO (A) D03IN1480 0.9 0.9 VCC = +30V Tamb = +25˚C 0.8 0.7 0.6 0.6 0.5 0.5 0.4 0.4 0.3 0.3 0.2 0.2 0.1 0.1 0 0.1 0.2 0.3 0.4 0.5 0.6 0.7 RL(Ω) Figure 6. Power supply current (pin 4) IS (mA) VCC = +30V 0.8 0.7 0 Available output current vs limiting resistor D03IN1481 0 Tamb = +25˚C Tamb = +85˚C 0 0.1 0.2 0.3 0.4 0.5 0.6 0.7 RL(Ω) Figure 7. Output saturation voltage vs output current VO (sat) (V) D03IN1482 1.4 6 RSC = 0 1.3 Tj = +25˚C 1.2 IO = 0.5A Tj = +150˚C 1.1 Output high 4 1.0 Tj = +25˚C 0.9 Tj = +150˚C 0.8 2 0.7 Output low 0.6 0 0 10 20 30 40 50 60 70 VS(V) 0.5 0 0.1 0.2 0.3 0.4 0.5 0.6 0.7 IO(A) 7/16 Typical characteristics Figure 8. TDE1767 - TDE1787 Output transistor safe operating area (pulsed)) IO (A) D03IN1483 Normal operating area (short circuit protected) RL (Ω) D03IN1484 t= 1.2 Figure 9. ms 10 t= 10 1.0 no short circuit protection 0.1 0.2 0 0 10 20 30 40 50 60 0.5 0.6 VS(V) Figure 10. Current sinking D03IN1485 20 30 40 Tamb = +25˚C 20 10 16 8 VS(V) Tamb = +25˚C 6 12 Alarm output after thermal shutdown Alarm output normal operation 4 2 4 0 1 2 3 VO(V) Figure 12. Response time 0 0 1 2 Figure 13. Response time D03IN1488 Vo (V) 0 Vo (V) 0 Vi (V) 0 2.5V Vi (V) 0 0 1 2 3 VO(V) 3 D03IN1487 8/16 60 D03IN1486 14 12 8 50 Isync (mA) 24 0 10 Figure 11. Current sourcing Isync (mA) 28 0 TDE1787A 0.4 TDE1787A 0.4 TDE1767A 0.3 TDE1767 TDE1787 0.6 TDE1767A s 0.2 TDE1767 TDE1787 0m 0.8 4 t(µs) 0 5 10 15 20 t(µs) TDE1767 - TDE1787 6 Typical application Typical application Figure 14. Test circuit VCC +30V 0.22Ω + - 1.4V 100Ω D03IN1489 Figure 15. Open load detection.4 RS VCC VCCR1 R2 RSC R1 ≥ 50mV IL LOAD + RSIL ≥ 100mV R2 D03IN1492 Figure 16. Driving lamps, relays, etc... RSC VCC CURRENT LIMITING INPUT GROUND + ALARM OUTPUT RESET OUTPUT 5.6KΩ 100KΩ (max) RL D03IN1493 9/16 Typical application TDE1767 - TDE1787 Figure 17. Common reset. VCC RSC RSC - OUTPUT + + RESET GROUND RESET ALARM 100KΩ (max) D03IN1494 Figure 18. Parallel driving of loads up to 1 A. VCC 0.15Ω Vref - Vi + 0.15Ω RL RESET 100KΩ (max) D03IN1495 10/16 - Vref + Vi TDE1767 - TDE1787 7 Using alarm output Using alarm output Figure 19. Parallel alarm output VCC 10KΩ 7 1 1 - 7 - + + 4 4 ALARM SIGNAL D03IN1496 Figure 20. LED to VCC VCC 5.6KΩ 7 1 4 D03IN1497 Figure 21. LED to ground VCC 7 4 1 5.6KΩ D03IN1498 11/16 Using alarm output TDE1767 - TDE1787 Figure 22. Interface between high voltage and low voltage system. VCC≤+50V VCC≥+6V RSC +1<VI<+50 HIGH VOLTAGE SYSTEM LOW VOLTAGE SYSTEM 0<VI<+50 D03IN1499 Figure 23. Increasing current up to 10A. VCC 0.01Ω VCC CURRENT LIMITING - OUTPUT + RESET ALARM OUTPUT GROUND 12/16 RESET RL 100KΩ (max) D03IN1500 TDE1767 - TDE1787 8 Mechanical data Mechanical data In order to meet environmental requirements, ST offers these devices in ECOPACK® packages. These packages have a Lead-free second level interconnect. The category of second Level Interconnect is marked on the package and on the inner box label, in compliance with JEDEC Standard JESD97. The maximum ratings related to soldering conditions are also marked on the inner box label. ECOPACK is an ST trademark. ECOPACK specifications are available at: www.st.com. 13/16 Mechanical data TDE1767 - TDE1787 Table 5. DIP-8 Mechanical data mm Inch Dim. Min A Typ Min 3.32 Typ Max 0.131 a1 0.51 0.020 B 1.15 1.65 0.045 0.065 b 0.356 0.55 0.014 0.022 b1 0.204 0.304 0.008 0.012 D E 10.92 7.95 9.75 0.430 0.313 0.384 e 2.54 0.100 e3 7.62 0.300 e4 7.62 0.300 F 6.6 0.260 I 5.08 0.200 L 3.18 Z Figure 24. Package dimensions 14/16 Max 3.81 1.52 0.125 0.150 0.060 TDE1767 - TDE1787 9 Revision history Revision history Table 6. Revision history Date Revision Changes 20-Sep-2003 1 Initial release. 3-Mar-2007 2 Document reformatted, typo Figure 1 on page 3 15/16 TDE1767 - TDE1787 Please Read Carefully: Information in this document is provided solely in connection with ST products. STMicroelectronics NV and its subsidiaries (“ST”) reserve the right to make changes, corrections, modifications or improvements, to this document, and the products and services described herein at any time, without notice. All ST products are sold pursuant to ST’s terms and conditions of sale. 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