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LMP8640 Datasheet(PDF) 5 Page - Texas Instruments |
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LMP8640 Datasheet(HTML) 5 Page - Texas Instruments |
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5 / 32 page  LMP8640, LMP8640-Q1, LMP8640HV www.ti.com SNOSB28G – AUGUST 2010 – REVISED NOVEMBER 2014 7.5 Thermal Information LMP8640 LMP8640HV LMP8640-Q1 THERMAL METRIC(1) UNIT THIN SOT-23 6 PINS RθJA Junction-to-ambient thermal resistance (2) 165 RθJC(top) Junction-to-case (top) thermal resistance 28 RθJB Junction-to-board thermal resistance 24.6 °C/W ψJT Junction-to-top characterization parameter 0.3 ψJB Junction-to-board characterization parameter 23.8 (1) For more information about traditional and new thermal metrics, see the IC Package Thermal Metrics application report, SPRA953. (2) The maximum power dissipation must be derated at elevated temperatures and is dictated by TJ(MAX), θJA, and the ambient temperature, TA. The maximum allowable power dissipation PDMAX = (TJ(MAX) - TA)/ θJA or the number given in Absolute Maximum Ratings, whichever is lower. 7.6 Electrical Characteristics 2.7 V (1) Unless otherwise specified, all limits ensured for at TA = 25°C, VS= V + – V-, V SENSE= +IN-(-IN), V + = 2.7 V, V− = 0 V, −2 V < VCM < 76 V, RL = 10 MΩ. LMP8640 limits also apply to the LMP8640-Q1. PARAMETER TEST CONDITIONS MIN(2) TYP(3) MAX(2) UNIT VCM = 2.1 V -900 900 VOS Input Offset Voltage µV VCM = 2.1 V, Over Temperature -1160 1160 TCVOS Input Offset Voltage Drift(4) (5) VCM = 2.1 V 2.6 µV/°C VCM = 2.1 V, VSENSE = 0 V 12 20 IB Input Bias Current (6) µA VCM = 2.1 V, Over Temperature, VSENSE = 0 V 27 eni Input Voltage Noise (5) f > 10 kHz 117 nV/ √Hz Gain LMP8640-T LMP8640HV-T 20 Gain LMP8640-F LMP8640HV-F 50 V/V Gain LMP8640-H LMP8640HV-H 100 Gain AV VCM = 2.1 V -0.25% 0.25% Gain error VCM = 2.1 V, Over Temperature -0.51% 0.51% Accuracy over temperature(5) VCM = 2.1V, Over Temperature 26.2 ppm/°C PSRR Power Supply Rejection Ratio VCM = 2.1 V, 2.7 V < V + < 12 V, 85 dB LMP8640HV 2.1 V < VCM < 42 V 103 LMP8640 2.1 V < VCM< 42 V CMRR Common Mode Rejection Ratio dB LMP8640HV 2.1 V < VCM < 76 V 95 -2 V <VCM < 2 V, 60 (1) Electrical Table values apply only for factory testing conditions at the temperature indicated. Factory testing conditions result in very limited self-heating of the device such that TJ = TA. No specification of parametric performance is indicated in the electrical tables under conditions of internal self-heating where TJ > TA. Absolute Maximum Ratings indicate junction temperature limits beyond which the device may be permanently degraded, either mechanically or electrically. (2) Limits are 100% production tested at 25°C. Limits over the operating temperature range are ensured through correlations using statistical quality control (SQC) method. (3) Typical values represent the most likely parametric norm at the time of characterization. Actual typical values may vary over time and will also depend on the application and configuration. The typical values are not tested and are not ensured on shipped production material. (4) Offset voltage temperature drift is determined by dividing the change in VOS at the temperature extremes by the total temperature change. (5) This parameter is ensured by design and/or characterization and is not tested in production. (6) Positive Bias Current corresponds to current flowing into the device. Spec does not include input signal dependent currents on the positive input of approximately Vsense / 5K Ω due to topology feedback action. Copyright © 2010–2014, Texas Instruments Incorporated Submit Documentation Feedback 5 Product Folder Links: LMP8640 LMP8640-Q1 LMP8640HV |
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