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LM4050BEM3-8.2 Datasheet(PDF) 3 Page - Texas Instruments |
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LM4050BEM3-8.2 Datasheet(HTML) 3 Page - Texas Instruments |
3 / 35 page LM4050-N, LM4050-N-Q1 www.ti.com SNOS455E – MAY 2000 – REVISED APRIL 2013 LM4050-N-2.0 Electrical Characteristics Boldface limits apply for TA = TJ = TMIN to TMAX; all other limits TA = TJ = 25°C. The grades A, B and C designate initial Reverse Breakdown Voltage tolerances of ±0.1%, ±0.2%, and 0.5% respectively. LM4050-NAIM3 LM4050-NBIM3 LM4050-NCIM3 LM4050- LM4050- LM4050- Units Symbol Parameter Conditions Typical(1) NAEM3 NBEM3 NCEM3 (Limit) Limits(2) Limits(2) Limits(2) VR Reverse Breakdown Voltage IR = 100 μA 2.048 V Reverse Breakdown Voltage IR = 100 μA ±2.048 ±4.096 ±10.24 mV (max) Tolerance(3) Industrial Temp. Range ±9.0112 ±11.4688 ±14.7456 mV (max) Extended Temp. Range ±12.288 ±14.7456 ±17.2032 mV (max) IRMIN Minimum Operating Current 41 μA 60 60 60 μA (max) 65 65 65 μA (max) ΔVR/ΔT Average Reverse Breakdown IR = 10 mA ±20 ppm/°C Voltage Temperature IR = 1 mA ±15 ppm/°C Coefficient(3) IR = 100 μA ±15 ppm/°C ±50 ±50 ±50 (max) ΔVR/ΔIR Reverse Breakdown Voltage IRMIN ≤ IR ≤ 1 mA 0.3 mV Change with Operating Current 0.8 0.8 0.8 mV (max) Change(4) 1.2 1.2 1.2 mV (max) 1 mA ≤ IR ≤ 15 mA 2.3 mV 6.0 6.0 6.0 mV (max) 8.0 8.0 8.0 mV (max) ZR Reverse Dynamic Impedance IR = 1 mA, f = 120 Hz, IAC 0.3 Ω = 0.1 IR eN Wideband Noise IR = 100 μA 34 μVrms 10 Hz ≤ f ≤ 10 kHz ΔVR Reverse Breakdown Voltage t = 1000 hrs 120 Long Term Stability T = 25°C ±0.1°C ppm IR = 100 μA VHYST Thermal Hysteresis ΔT = −40°C to 125°C 0.7 mV (5) (1) Typicals are at TJ = 25°C and represent most likely parametric norm. (2) Limits are 100% production tested at 25°C. Limits over temperature are guaranteed through correlation using Statistical Quality Control (SQC) methods. The limits are used to calculate National's AOQL. (3) The boldface (over-temperature) limit for Reverse Breakdown Voltage Tolerance is defined as the room temperature Reverse Breakdown Voltage Tolerance ±[( ΔV R/ΔT)(maxΔT)(VR)]. Where, ΔVR/ΔT is the VR temperature coefficient, maxΔT is the maximum difference in temperature from the reference point of 25°C to T MIN or TMAX, and VR is the reverse breakdown voltage. The total over- temperature tolerance for the different grades in the industrial temperature range where max ΔT = 65°C is shown below: A-grade: ±0.425% = ±0.1% ±50 ppm/°C × 65°C B-grade: ±0.525% = ±0.2% ±50 ppm/°C × 65°C C-grade: ±0.825% = ±0.5% ±50 ppm/°C × 65°CTherefore, as an example, the A-grade LM4050-N-2.5 has an over-temperature Reverse Breakdown Voltage tolerance of ±2.5V × 0.425% = ±11 mV. (4) Load regulation is measured on pulse basis from no load to the specified load current. Output changes due to die temperature change must be taken into account separately. (5) Thermal hysteresis is defined as the difference in voltage measured at +25°C after cycling to temperature -40°C and the 25°C measurement after cycling to temperature +125°C. Copyright © 2000–2013, Texas Instruments Incorporated Submit Documentation Feedback 3 Product Folder Links: LM4050-N LM4050-N-Q1 |
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