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LM4781 Datasheet(PDF) 3 Page - Texas Instruments |
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LM4781 Datasheet(HTML) 3 Page - Texas Instruments |
3 / 31 page LM4781, LM4781TABD www.ti.com SNAS208 – MAY 2004 Figure 3. TO-220 Top Marking (Top View) These devices have limited built-in ESD protection. The leads should be shorted together or the device placed in conductive foam during storage or handling to prevent electrostatic damage to the MOS gates. Absolute Maximum Ratings (1) (2) Supply Voltage |V+| + |V-| (No Signal) 72V Supply Voltage |V+| + |V-| (Input Signal) 70V Common Mode Input Voltage (V+ or V-) and |V+| + |V-| ≤ 60V Differential Input Voltage(3) 60V Output Current Internally Limited Power Dissipation (4) 125W ESD Susceptability (5) 2.0kV ESD Susceptability (6) 200V Junction Temperature (TJMAX) (7) 150°C Soldering Information TA Package (10 seconds) 260°C Storage Temperature -40°C to +150°C Thermal Resistance(8) θJA 30°C/W θJC 0.9°C/W (1) Absolute Maximum Ratings indicate limits beyond which damage to the device may occur. Operating Ratings indicate conditions for which the device is functional, but do not guarantee specific performance limits. Electrical Characteristics state DC and AC electrical specifications under particular test conditions which guarantee specific performance limits. This assumes that the device is within the Operating Ratings. Specifications are not guaranteed for parameters where no limit is given; however, the typical value is a good indication of device performance. (2) All voltages are measured with respect to the ground pins, unless otherwise specified. (3) The Differential Input Voltage Absolute Maximum Rating is based on supply voltages V+ = 30V and V-= - 30V. (4) The maximum power dissipation must be de-rated at elevated temperatures and is dictated by TJMAX, θJC, and the ambient temperature TA. The maximum allowable power dissipation is PDMAX = (TJMAX -TA)/θJC or the number given in the Absolute Maximum Ratings, whichever is lower. For the LM4781, TJMAX = 150°C and the typical θJC is 0.9°C/W. Refer to the DETERMINING THE CORRECT HEAT SINK section for more information. (5) Human body model, 100pF discharged through a 1.5k Ω resistor. (6) Machine Model: a 220pF - 240pF discharged through all pins. (7) The maximum operating junction temperature is 150°C. However, the instantaneous Safe Operating Area temperature is 250°C. (8) The TA27A is a non-isolated package. The package's metal back and any heat sink to which it is mounted are connected to the V- potential when using only thermal compound. If a mica washer is used in addition to thermal compound, θCS (case to sink) is increased, but the heat sink will be electrically isolated from V-. Copyright © 2004, Texas Instruments Incorporated Submit Documentation Feedback 3 Product Folder Links: LM4781 LM4781TABD |
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