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LM4040 Scheda tecnica(PDF) 10 Page - Micrel Semiconductor |
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LM4040 Scheda tecnica(HTML) 10 Page - Micrel Semiconductor |
10 / 16 page LM4040/4041 Micrel, Inc. M9999-031805 10 March 2005 LM4041-Adjustable Electrical Characteristics (Note 4) Boldface limits apply for TA = TJ = TMIN to TMAX; all other limits TJ = 25°C unless otherwise specified (SOT-23, see Note 8), IRMIN ≤ IR < 12mA, VREF ≤ VOUT ≤ 10V. The grades C and D designate initial Reverse Breakdown Voltage tolerance of ±0.5% and ±1%, respectively for VOUT = 5V. LM4041CIM3 LM4041DIM3 Symbol Parameter Conditions Typical Units (Note 5) Limits Limits (Limit) (Note 6) (Note 6) VREF Reference Breakdown Voltage IR = 100µA 1.233 V VOUT = 5V Reference Breakdown Voltage IR = 100µA ±6.2 ±12 mV (max) Tolerance (Note 9) ±14 ±24 mV (max) IRMIN Minimum Operating Current 45 µA 60 65 µA (max) 65 70 µA (max) ΔVREF Reference Voltage IRMIN ≤ IR 1mA 0.7 mV /ΔIR Change with Operating SOT-23: 1.5 2.0 mV (max) Current Change VOUT ≥ 1.6V 2.0 2.5 mV (max) (Note 8) 1mA ≤ IR 15mA 2 mV SOT-23: 4 6 mV (max) VOUT ≥ 1.6V 6 8 mV (max) (Note 8) ΔVREF Reference Voltage Change IR = 1mA –1.55 mV/V /ΔVO with Output Voltage Change –2.0 –2.5 mV/V (max) –2.5 –3.0 mV/V (max) IFB Feedback Current 60 nA 100 150 nA (max) 120 200 nA (max) ΔVREF Average Reference VOUT = 5V /ΔT Voltage Temperature IR = 10mA ±20 ppm/°C Coefficient IR = 1mA ±15 ±100 ±150 ppm/°C (max) (Note 9) IR = 100µA ±15 ppm/°C (max) ZOUT Dynamic Output Impedance IR = 1mA, f = 120Hz IAC = 0.1 IR VOUT = VREF 0.3 Ω VOUT = 10V 2 Ω (max) eN Wideband Noise IR = 100µA 10Hz ≤ f ≤ 10kHz 20 µVRMS ΔVREF Reference Voltage t = 1000hrs Long Term Stability T = 25°C ±0.1°C 120 ppm IR = 100µA Note 4. Specification for packaged product only. Note 5. Typicals are at TJ = 25°C and represent most likely parametric norm. Note 6. Limits are 100% production tested at 25°C. Limits over temperature are guaranteed through correlation using Statistical Quality Control (SQL) methods. Note 7. The boldface (over temperature limit for Reverse Breakdown Voltage Tolerance is defined as the room temperature Reverse Breakdown Volt- age Tolerance ±[(ΔVR/ΔT)(65°C)(VR)]. ΔVR/ΔT is the VR temperature coefficient, 65°C is the temperature range from –40°C to the reference point of 25°C, and VR is the reverse breakdown voltage. The total over temperature tolerance for the different grades follows: C-grade: ±1.15% = ±0.5% ±100ppm/°C × 65°C D-grade: ±1.98% = ±1.0% ±150ppm/°C × 65°C Example: The C-grade LM4040-2.5 has an over temperature Reverse Breakdown Voltage tolerance of ±2.5 × 1.15% = ±29mV. Note 8. When VOUT ≤ 1.6V, the LM4041-ADJ must operate at reduced IR. This is caused by the series resistance of the die attach between the die (–) output and the package (–) output pin. See the Output Saturation curve in the “Typical Performance Characteristics” section. Note 9. Reference voltage and temperature coefficient will change with output voltage. See “Typical Performance Characteristics” curves. |
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