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TDE1767A Scheda tecnica(PDF) 1 Page - STMicroelectronics |
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TDE1767A Scheda tecnica(HTML) 1 Page - STMicroelectronics |
1 / 10 page TDE1767, A TDE1787, A INTERFACE CIRCUIT (RELAY AND LAMP-DRIVER) March 1993 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]) DESCRIPTION The TDE1767, A/TDE1787, A are a monolithic am- plifiers 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. 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. The devices operates over a wide range voltages from standard 15 V operational amplifier supplies to the single +6V or +48V used for industrial electric systems. Input voltages can be higher than in the VCC. 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. The output is low in open ground conditions. PIN CONNECTION (top view) Symbol Parameter Value Unit Rth (j - c) Maximum Junction-case Thermal Resistance 30 °C/W Rth (j - a) Maximum Junction-ambient Thermal Resistence 80 °C/W THERMAL DATA * Devices bonded on a 40 cm2 glass-epoxy printed circuit 0.15 cm thick with 4 cm2 of copper. Minidip ORDERING NUMBERS : TDE1767 DP TDE1767 ADP TDE1787 DP TDE1787 ADP 1/10 |
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