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LM3915N-1 bảng dữ liệu(PDF) 4 Page - Texas Instruments |
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LM3915N-1 bảng dữ liệu(HTML) 4 Page - Texas Instruments |
4 / 31 page LM3915 SNVS740C – JANUARY 2000 – REVISED MARCH 2013 www.ti.com ELECTRICAL CHARACTERISTICS (1)(2) (continued) Parameter Conditions(1) Min Typ Max Units VOLTAGE REFERENCE Output Voltage 0.1 mA ≤ IL(REF) ≤ 4 mA, 1.2 1.28 1.34 V V+ = VLED = 5V Line Regulation 3V ≤ V+ ≤ 18V 0.01 0.03 %/V Load Regulation 0.1 mA ≤ IL(REF) ≤ 4 mA, 0.4 2 % V+ = VLED = 5V Output Voltage Change with 0°C ≤ TA ≤ +70°C, IL(REF) = 1 mA, 1 % Temperature V + = VLED = 5V Adjust Pin Current 75 120 μA OUTPUT DRIVERS LED Current V + = VLED = 5V, IL(REF) = 1 mA 7 10 13 mA VLED = 5V, ILED = 2 mA 0.12 0.4 LED Current Difference (Between mA VLED = 5V, ILED 20 mA Largest and Smallest LED Currents) 1.2 3 LED Current Regulation 2V ≤ VLED ≤ 17V, ILED = 2 mA 0.1 0.25 mA ILED = 20 mA 1 3 Dropout Voltage ILED(ON) = 20 mA, @ VLED = 5V, 1.5 V ΔILED = 2 mA Saturation Voltage ILED = 2.0 mA, IL(REF) = 0.4 mA 0.15 0.4 V Output Leakage, Each Collector (Bar Mode) (4) 0.1 10 μA Output Leakage (Dot Mode) (4) Pins 10–18 0.1 10 μA Pin 1 60 150 450 μA SUPPLY CURRENT Standby Supply Current V+ = +5V, IL(REF) = 0.2 mA 2.4 4.2 mA (All Outputs Off) V+ = +20V, IL(REF) = 1.0 mA 6.1 9.2 mA (4) Bar mode results when pin 9 is within 20 mV of V+. Dot mode results when pin 9 is pulled at least 200 mV below V+. LED #10 (pin 10 output current) is disabled if pin 9 is pulled 0.9V or more below VLED. THRESHOLD VOLTAGE (1) Output dB Min Typ Max Output dB Min Typ Max 1 −27 0.422 0.447 0.531 6 −12 2.372 2.512 2.819 2 −24 0.596 0.631 0.750 7 −9 3.350 3.548 3.825 3 −21 0.841 0.891 1.059 8 −6 4.732 5.012 5.309 4 −18 1.189 1.259 1.413 9 −3 6.683 7.079 7.498 5 −15 1.679 1.778 1.995 10 0 9.985 10 10.015 (1) Accuracy is measured referred to 0 dB = + 10.000 VDC at pin 5, with + 10.000 VDC at pin 6, and 0.000 VDC at pin 4. At lower full scale voltages, buffer and comparator offset voltage may add significant error. See Threshold Voltage. 4 Submit Documentation Feedback Copyright © 2000–2013, Texas Instruments Incorporated Product Folder Links: LM3915 |
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Mô tả tương tự - LM3915N-1 |
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