TDE1747FP

TDE1747 TDF1747 ® INTERFACE CIRCUIT – RELAY AND LAMP – DRIVER 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 : + 10 V TO + 45 V SHORT-CIRCUIT PROTECTION TO VCC DESCRIPTION The TDE/TDF1747 is a monolithic comparator designed for high current and high voltage applications, specifically to drive lamps, relays, stepping motors. These device is essentially blow-out proof. Current limiting is available to limit the peak output current to safe values, the adjustment only requires one external resistor. In addition, thermal shut down is provided to keep the I.C. from overheating. If internals dissipation becomes too great, 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. PIN CONNECTIONS (Top view) u d o Minidip (DP) r P e t e l o bs O ) s ( t c u d o r P e ) s ( ct SO14 (FP) ORDERING NUMBERS: TDE1747DP TDE1747FP TDF1747DP 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. t e l o s b O Minidip September 2003 SO14 1/11 This is advanced information on a new product now in development or undergoing evaluation. Details are subject to change without notice. TDE1747 - TDF1747 ABSOLUTE MAXIMUM RATINGS Symbol Parameter Value Unit 50 * V VCC Supply Voltage VID Differantial Input Voltage 50 V VI Input Voltage 50 V IO Output Current 1 A Internally Limited W °C Ptot Power Dissipation (Tamb = + 25 °C) Tstg Storage Temperature Range – 65 to + 150 Toper Operating Ambient Temperature Range TDE1747 TDF1747 – 25 to + 85 – 40 to + 85 ) s ( ct °C °C (*) 60V, t â 10ms u d o r P e THERMAL CHARACTERISTICS Symbol Parameter Rth(j-c) Maximum Junction-case Thermal Resistance Rth(j-a) Maximum Junction-ambient Thermal Resistance Rth Junction-ceramic Substrate (case glued to substrate) Rth Junction-ceramic Substrate (case glued to substrate, substrate temperature maintened constant) SO14 O ) s ( t c SCHEMATIC DIAGRAM u d o r P e t e l o s b O 2/11 o s b let SO14 Value Unit 50 °C/W 120 °C/W 90 °C/W 65 °C/W TDE1747 - TDF1747 TEST CIRCUIT ) s ( ct u d o r P e t e l o ) (s SIMPLIFIED CIRCUIT s b O t c u d o r P e t e l o s b O 3/11 TDE1747 - TDF1747 ELECTRICAL CHARACTERISTICS Tj = – 25 to +85 °C, VCC = 8 to 45 V, unless otherwise specified (note 1). Symbol Parameter Min. Typ. Max. Unit VIO Input Offset Voltage - (note 2) – 2 50 mV IIB Input Bias Current – 0.1 1.5 mA ICC Supply Current (VCC = + 24 V, IO = 0) High Level Low Level – – 4 2 6 4 mA mA Common-mode Input Voltage Range 2 – VCC–2 V – – 480 35 – 50 mA mA VI(max) ISC VCC–VO Short-circuit Current Limit (Tamb = + 25 °C, VCC = + 24) RSC = 1.5 Ω RSC = ∞ TDE1747 IOL Output Saturation Voltage (output high) (RSC = 0, VI+–VI– ≥ 50 mV) IO = 300 mA, Tj = + 25 °C Tj = + 150 °C Low Level Output Current (VO = 0, VCC = + 24 V) Tj = + 25 °C Notes : e t e ol s b O u d o ) s ( ct Pr 1.15 1.05 1.4 1.3 V V – 0.01 10 µA – – 1) For operating at high temperature, the TDE/TDF1747, must be derated based on a + 150 C maximum junction temperature and a junction-ambient thermal resistance of 120 °C/W for Minidip and 100 °C/W for the SO14. ) (s 2) The offset voltage given is the maximum value of input voltage required to drive the output voltage within 2 V of the ground or the supply voltage. t c u d o r let P e Figure 1: Available Output Current vs. Limiting Resistor o s b O 4/11 Figure 2: Peak Short-circuit Output Current vs. Limiting Resistor TDE1747 - TDF1747 Figure 4: Minimum Limiting Resistor Value vs. Supply Voltage Figure 3: Short-circuit Current vs. Case Temperature ) s ( ct Figure 5: Output Current vs. Output Saturation Voltage ) (s u d o r P e Figure 6: Supply Current vs. Supply Voltage t e l o s b O t c u d o r P e s b O t e l o Figure 7: Supply Current vs. Junction Temperature Figure 8: Safe Operating Area (non repetitive surge) 5/11 TDE1747 - TDF1747 Figure 9: Response Time ) s ( ct u d o r P e TYPICAL APPLICATIONS t e l o Figure 10: Base Circuit ) (s t c u d o r P e t e l o s b O 6/11 s b O TDE1747 - TDF1747 Figure 11: Output Current Extension (5A) ) s ( ct u d o r P e t e l o ) (s s b O Figure 12: Driving Low Impedance Relays (IO = 300mA) t c u d o r P e t e l o s b O The device in the above application operates at: VCC = +45V, IO = 300mA with a heatsink such that Rth(j-a) ≤ 80°C/W. The device supports an output voltage of VCC = VZ during the current cut off time, which is decreased by the zener diode. Thisvoltage must be ≤ to the maximum supply voltage. 7/11 TDE1747 - TDF1747 Figure 13: Waveforms ) s ( ct u d o r P e (FIGURE 13a) t e l o ) (s s b O t c u d o r P e t e l o bs O 8/11 (FIGURE 13b) TDE1747 - TDF1747 mm DIM. MIN. a1 0.51 B 1.39 TYP. inch MAX. MIN. TYP. 0.020 1.65 0.055 0.065 b 0.5 0.020 b1 0.25 0.010 D 20 0.787 E 8.5 0.335 e 2.54 0.100 e3 15.24 0.600 F 7.1 0.280 I 5.1 0.201 L 3.3 Z OUTLINE AND MECHANICAL DATA MAX. 1.27 0.130 2.54 0.050 0.100 ) (s ) s ( ct u d o r P e s b O t e l o DIP14 t c u d o r P e t e l o s b O 9/11 TDE1747 - TDF1747 mm inch OUTLINE AND MECHANICAL DATA DIM. MIN. A TYP. MAX. 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 0.313 0.384 e 2.54 0.100 e3 7.62 0.300 e4 7.62 0.300 u d o F 6.6 0.260 I 5.08 0.200 L 3.18 Z 3.81 0.125 0.150 ) (s 1.52 0.060 t c u d o r P e t e l o s b O 10/11 ) s ( ct 0.430 r P e s b O t e l o Minidip TDE1747 - TDF1747 ) s ( ct u d o r P e t e l o ) (s s b O t c u d o r P e t e l o s b O Information furnished is believed to be accurate and reliable. However, STMicroelectronics assumes no responsibility for the consequences of use of such information nor for any infringement of patents or other rights of third parties which may result from its use. No license is granted by implication or otherwise under any patent or patent rights of STMicroelectronics. Specifications mentioned in this publication are subject to change without notice. This publication supersedes and replaces all information previously supplied. STMicroelectronics products are not authorized for use as critical components in life support devices or systems without express written approval of STMicroelectronics. The ST logo is a registered trademark of STMicroelectronics. All other names are the property of their respective owners © 2003 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 www.st.com 11/11