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| TDE1747 Interface circuit - relay and lamp-driver Features Open ground protection High output current Adjustable short-circuit protection to ground Thermal protection with hysteresis to avoid the intermediate output levels Large supply voltage range: + 8V to +45V Short-circuit protection to VCC SO14 DIP-8 Description The TDE1747 is a monolithic comparator designed for high current and high voltage applications, specifically to drive lamps, relays, stepping motors. This device is essentially blow-out proof. Current limiting is available to limit the peak output current to safe values. Adjustment only requires one external resistor. In addition, thermal shut down is provided to keep the IC from overheating. If internal dissipation becomes too high, the driver will shut down to prevent excessive heating. TDE1747 has an open ground protection. The output is also protected from shortcircuits with the positive power supply. The device operates over a wide range of supply voltages from standard 15V operational amplifier supplies down to the single +12V or +24V used for industrial electronic systems. . Order codes Part number TDE1747DP TDE1747FP TDE1747FPT Temp range, C -25C to +85C -25C to +85C -25C to +85C Package DIP-8 SO14 SO14 Packing Tube Tube Tape and reel September 2006 Rev 1 1/17 www.st.com 17 Contents TDE1747 Contents 1 Maximum ratings . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 3 1.1 1.2 Absolute maximum ratings . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 3 Thermal data . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 3 2 3 4 5 6 7 8 Electrical characteristics . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 4 Pin connections and schematic diagrams . . . . . . . . . . . . . . . . . . . . . . . . . 5 Typical characteristics . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 7 Typical applications . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 10 Waveforms . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 12 Package mechanical data . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 13 Revision history . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 16 2/17 TDE1747 Maximum ratings 1 1.1 Table 1. Symbol VCC VI Maximum ratings Absolute maximum ratings Absolute maximum ratings Parameter Supply voltage Input voltage Differential input voltage Output current Power dissipation (TA = +25C) Operating Free-air Temperature Range Storage temperature range Value 50 (1) 50 50 1 Internally Limited - 25 to + 85 - 65 to + 150 Unit V V V A W C C VID IO Ptot Toper TSTG 1. 60V, t 10ms 1.2 Table 2. Symbol RthJA RthJC Rth Rth Thermal data Thermal data Description Thermal Resistance Junction-ambient Thermal Resistance Junction-case Junction-ceramic Substrate (case glued to substrate) SO14 Junction-ceramic Substrate (case glued to substrate, substrate temperature maintained constant) SO14 Value 120 50 90 65 Unit C/W C/W C/W C/W 3/17 Electrical characteristics TDE1747 2 Electrical characteristics TJ = -25 to +85C, VCC = 8 to 45 V, unless otherwise specified (note 1) Parameter Min - - Typ 2 0.1 Max 50 1.5 Unit mV mA Table 3. Symbol VIO IIB ICC VI(max) Electrical characteristics Input offset voltage(1)(2) Input bias current Supply Current (VCC = +24V, IO = 0) High level Low level Common-mode input voltage range Short-circuit Current Limit (TA = 25C, VCC = +24V) - - 2 4 2 - 6 4 VCC-2 mA mA V ISC RSC= 1.5 RSC= Output saturation voltage (output low) (VI+- VI- 50mV, RSC = 0, IO = 300mA, ) TJ = + 25C TA = + 25C - - 480 35 - 50 mA mA VCC-VO - - - 1.15 1.05 0.01 1.4 1.3 10 V V A IOL Output leakage current (output high) (VO = 0, VCC = +24V, TA = + 25C) 1. For operating at high temperature, the TDE1747, must be derated based on a +150C maximum junction temperature and junction-ambient thermal resistance of 120C/W for DIP-8 and 100C/W for the SO14. 2. 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. 4/17 TDE1747 Pin connections and schematic diagrams 3 Pin connections and schematic diagrams Figure 1. Pin connections (top views) Figure 2. Schematic diagram 5/17 Pin connections and schematic diagrams TDE1747 Figure 3. Test circuit Figure 4. Simplified schematic 6/17 TDE1747 Typical characteristics 4 Typical characteristics 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. Minimum limiting resistor value vs supply voltage 7/17 Typical characteristics TDE1747 Figure 10. Supply current vs supply voltage Figure 9. Output current vs output saturation voltage Figure 11. Supply current vs junction temperature Figure 12. Safe operating area (not repetitive surge) 8/17 TDE1747 Figure 13. Response time Typical characteristics 9/17 Typical applications TDE1747 5 Typical applications Figure 14. Base circuit Figure 15. Output current extension (5A) 10/17 TDE1747 Figure 16. Driving low impedance relays (IO = 300mA) Typical applications 11/17 Waveforms TDE1747 6 Waveforms Figure 17. Input current vs time Figure 18. Response time with zener diode Figure 19. Response time without zener diode 12/17 TDE1747 Package mechanical data 7 Package mechanical data In order to meet environmental requirements, ST offers these devices in ECOPACK(R) 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 13/17 Package mechanical data TDE1747 Table 4. Dim. SO14 Mechanical data mm Min Typ Max 1.75 0.30 1.65 0.51 0.25 8.75 4.0 1.27 5.8 0.25 0.40 6.20 0.50 1.27 0.10 0.228 0.01 0.016 Min 0.053 0.004 0.043 0.013 0.007 0.337 0.150 0.050 0.244 0.02 0.050 0.004 Inch Typ Max 0.069 0.012 0.065 0.020 0.01 0.344 0.157 A A1 A2 B C D 1.35 0.10 1.10 0.33 0.19 8.55 3.80 (1) E e H h L k ddd 0 (min.), 8 (max.) 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 20. Package dimensions 0016019 D 14/17 TDE1747 Table 5. Dim. Min A a1 B b b1 D E e e3 e4 F I L Z 3.18 7.95 2.54 7.62 7.62 6.6 5.08 3.81 1.52 0.125 0.51 1.15 0.356 0.204 1.65 0.55 0.304 10.92 9.75 0.313 Typ 3.32 0.020 0.045 0.014 0.008 Max Min Package mechanical data DIP-8 Mechanical data mm Inch Typ 0.131 Max 0.065 0.022 0.012 0.430 0.384 0.100 0.300 0.300 0.260 0.200 0.150 0.060 Figure 21. Package dimensions 15/17 Revision history TDE1747 8 Revision history Table 6. Date 20-Sep-2006 Revision history Revision 1 New template Changes 16/17 TDE1747 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. If any part of this document refers to any third party products or services it shall not be deemed a license grant by ST for the use of such third party products or services, or any intellectual property contained therein or considered as a warranty covering the use in any manner whatsoever of such third party products or services or any intellectual property contained therein. UNLESS OTHERWISE SET FORTH IN ST'S TERMS AND CONDITIONS OF SALE ST DISCLAIMS ANY EXPRESS OR IMPLIED WARRANTY WITH RESPECT TO THE USE AND/OR SALE OF ST PRODUCTS INCLUDING WITHOUT LIMITATION IMPLIED WARRANTIES OF MERCHANTABILITY, FITNESS FOR A PARTICULAR PURPOSE (AND THEIR EQUIVALENTS UNDER THE LAWS OF ANY JURISDICTION), OR INFRINGEMENT OF ANY PATENT, COPYRIGHT OR OTHER INTELLECTUAL PROPERTY RIGHT. UNLESS EXPRESSLY APPROVED IN WRITING BY AN AUTHORIZED ST REPRESENTATIVE, ST PRODUCTS ARE NOT RECOMMENDED, AUTHORIZED OR WARRANTED FOR USE IN MILITARY, AIR CRAFT, SPACE, LIFE SAVING, OR LIFE SUSTAINING APPLICATIONS, NOR IN PRODUCTS OR SYSTEMS WHERE FAILURE OR MALFUNCTION MAY RESULT IN PERSONAL INJURY, DEATH, OR SEVERE PROPERTY OR ENVIRONMENTAL DAMAGE. ST PRODUCTS WHICH ARE NOT SPECIFIED AS "AUTOMOTIVE GRADE" MAY ONLY BE USED IN AUTOMOTIVE APPLICATIONS AT USER'S OWN RISK. Resale of ST products with provisions different from the statements and/or technical features set forth in this document shall immediately void any warranty granted by ST for the ST product or service described herein and shall not create or extend in any manner whatsoever, any liability of ST. ST and the ST logo are trademarks or registered trademarks of ST in various countries. Information in this document supersedes and replaces all information previously supplied. The ST logo is a registered trademark of STMicroelectronics. All other names are the property of their respective owners. (c) 2006 STMicroelectronics - All rights reserved STMicroelectronics group of companies Australia - Belgium - Brazil - Canada - China - Czech Republic - Finland - France - Germany - Hong Kong - India - Israel - Italy - Japan Malaysia - Malta - Morocco - Singapore - Spain - Sweden - Switzerland - United Kingdom - United States of America www.st.com 17/17 |
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