TDE1737 Interface circuit - relay and lamp-driver Features ■ High output current ■ Adjustable short-circuit protection ■ Thermal protection with hysteresis to avoid the intermediate output levels ■ Large supply voltage range: + 8V to +45V SO14 DIP-8 Description The TDE1737 is a monolithic amplifier designed for high current and high voltage applications, specifically to drive lamps, relays and control of stepper motors. This device is essentially blow-out proof. Current limiting is available to limit the peak output current to a safe value, the adjustment only requires one external resistor. In addition, thermal shut down is provided to keep the I.C. from overheating. If internal dissipation becomes too great, the driver will shut down to prevent excessive heating. The output is also protected against short-circuits with the positive power supply. The device operates over a wide range of supply voltages from standard ± 15 V operational amplifier supplies down to the single + 12 V or + 24 used for industrial electronic systems . Order codes Part number Temp range, ° C Package Packing TDE1737DP -25°C to +85°C DIP-8 Tube TDE1737FP -25°C to +85°C SO14 Tube TDE1737FPT -25°C to +85°C SO14 Tape and reel May 2006 Rev 3 1/13 www.st.com 13 TDE1737 Contents Contents 1 Maximum ratings . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 3 1.1 Absolute maximum ratings . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 3 1.2 Thermal data . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 3 2 Electrical characteristics . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 4 3 Pin connections and schematic diagrams . . . . . . . . . . . . . . . . . . . . . . . . . 5 4 Typical application . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 7 5 Package mechanical data . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 9 6 Revision history . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 12 2/13 TDE1737 Maximum ratings 1 Maximum ratings 1.1 Absolute maximum ratings Table 1. Absolute maximum ratings Symbol Parameter Value Unit VS Supply Voltage 50 V VI Input Voltage 50 V Differential Input Voltage 50 V 1000 mA Internally Limited W VID IO Ptot Output Current Power Dissipation Toper Operating Free–air Temperature Range for TDE1737 – 25 to + 85 °C TSTG Storage Temperature Range – 65 to + 150 °C 1.2 Table 2. Symbol Thermal data Thermal data Description Value Unit RthJA Thermal Resistance Junction-ambient (DIP-8) Max. 120 °C/W RthJC Thermal Resistance Junction-case (DIP-8) Max. 50 °C/W 90 °C/W Junction-ceramic substrate (case glued to substrate) 3/13 TDE1737 Electrical characteristics 2 Electrical characteristics 25°C ≤ TA ≤ +85°C, + 8V ≤ VCC ≤ +45 V, IO ≤ 300mA, TJ ≤ +150°C (unless otherwise specified) Table 3. Electrical characteristics Symbol Parameter Min. Typ. Max. Unit VIO Input Offset Voltage (1) – 2 50 mV IIB Input Bias Current – 0.1 1.5 mA ICC Supply Current (VCC = +24V, IO = 0) – 3 5 mA VCM Common–mode Input Voltage Range 2 – VCC–2 V ISC Short–circuit Current Limit (RSC= 1.5Ω, TCASE= + 25°C) – 500 – mA ≤50mV – 1 1.5 V – – 10 mA VCC–VO IOL Output Saturation Voltage (output low) (VI+– VI IO = 300mA, RSC = 0) Output Leakage Current (output high) (VO = VCC = +24V, TA = + 25°C) 1. The offset voltage given is the maximum value of input voltage required to drive the output voltage within 2V of the ground or the supply voltage. 2. Devices bonded on a 40 cm2 glass-epoxy printed circuit 0.15cm thick with 4 cm2 of cooper. 4/13 TDE1737 3 Pin connections and schematic diagrams Pin connections and schematic diagrams Figure 1. Pin connections (top views) Figure 2. Schematic diagram 5/13 Pin connections and schematic diagrams 6/13 Figure 3. Simplified schematic Figure 4. Typical application TDE1737 TDE1737 4 Typical application Typical application Figure 5. Available output current vs limiting resistors Figure 6. Peak short-circuit vs limiting resistor Figure 7. Short-circuit current vs case temperature Figure 8. Safe operating area (non ripetitive overload) 7/13 Typical application Figure 9. 8/13 Saturation voltage vs output current TDE1737 TDE1737 5 Package mechanical data Package 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 9/13 TDE1737 Package mechanical data Table 4. SO14 Mechanical data mm Inch Dim. Min Typ Max Min Typ Max A 1.35 1.75 0.053 0.069 A1 0.10 0.30 0.004 0.012 A2 1.10 1.65 0.043 0.065 B 0.33 0.51 0.013 0.020 C 0.19 0.25 0.007 0.01 (1) 8.55 8.75 0.337 0.344 E 3.80 4.0 0.150 D e 1.27 0.157 0.050 H 5.8 6.20 0.228 0.244 h 0.25 0.50 0.01 0.02 L 0.40 1.27 0.016 0.050 k ddd 0° (min.), 8° (max.) 0.10 0.004 1. “D” dimension does not include mold flash, protusions or gate burrs. Mold flash, protusions or gate burrs shall not exceed 0.15mm per side. Figure 10. Package dimensions 0016019 D 10/13 TDE1737 Table 5. Package mechanical data DIP-8 Mechanical data mm Inch Dim. Min A Typ Max Min 3.32 Typ Max 0.131 a1 0.51 B 1.15 1.65 0.045 0.020 0.065 b 0.356 0.55 0.014 0.022 b1 0.204 0.304 0.008 0.012 0.313 0.384 D E 10.92 7.95 9.75 0.430 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 3.81 1.52 0.125 0.150 0.060 Figure 11. Package dimensions 11/13 TDE1737 Revision history 6 Revision history Table 6. 12/13 Revision history Date Revision Changes 12-Sep-2003 1 Initial release 20-Oct-2003 2 Few changes 30-May-2006 3 New template TDE1737 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. Purchasers are solely responsible for the choice, selection and use of the ST products and services described herein, and ST assumes no liability whatsoever relating to the choice, selection or use of the ST products and services described herein. No license, express or implied, by estoppel or otherwise, to any intellectual property rights is granted under this document. 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