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LM3914N Arkusz danych(PDF) 3 Page - National Semiconductor (TI) |
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LM3914N Arkusz danych(HTML) 3 Page - National Semiconductor (TI) |
3 / 19 page Absolute Maximum Ratings (Note 1) If Military/Aerospace specified devices are required, please contact the National Semiconductor Sales Office/ Distributors for availability and specifications. Power Dissipation (Note 6) Molded DIP (N) 1365 mW Supply Voltage 25V Voltage on Output Drivers 25V Input Signal Overvoltage (Note 4) ±35V Divider Voltage −100 mV to V + Reference Load Current 10 mA Storage Temperature Range −55˚C to +150˚C Soldering Information Dual-In-Line Package Soldering (10 seconds) 260˚C Plastic Chip Carrier Package Vapor Phase (60 seconds) 215˚C Infrared (15 seconds) 220˚C See AN-450 “Surface Mounting Methods and Their Effect on Product Reliability” for other methods of soldering surface mount devices. Electrical Characteristics (Notes 2, 4) Parameter Conditions (Note 2) Min Typ Max Units COMPARATOR Offset Voltage, Buffer and First Comparator 0V ≤ V RLO = VRHI ≤ 12V, I LED = 1mA 310 mV Offset Voltage, Buffer and Any Other Comparator 0V ≤ V RLO = VRHI ≤ 12V, I LED = 1mA 315 mV Gain ( ∆I LED/∆VIN)IL(REF) = 2 mA, ILED = 10 mA 3 8 mA/mV Input Bias Current (at Pin 5) 0V ≤ V IN ≤ V + − 1.5V 25 100 nA Input Signal Overvoltage No Change in Display −35 35 V VOLTAGE-DIVIDER Divider Resistance Total, Pin 6 to 4 8 12 17 k Ω Accuracy (Note 3) 0.5 2 % VOLTAGE REFERENCE Output Voltage 0.1 mA ≤ I L(REF) ≤ 4 mA, V + = V LED = 5V 1.2 1.28 1.34 V Line Regulation 3V ≤ V+ ≤ 18V 0.01 0.03 %/V Load Regulation 0.1 mA ≤ I L(REF) ≤ 4 mA, V + = V LED = 5V 0.4 2 % Output Voltage Change with Temperature 0˚C ≤ T A ≤ +70˚C, IL(REF) = 1 mA, V + = 5V 1 % Adjust Pin Current 75 120 µA OUTPUT DRIVERS LED Current V + = V LED = 5V, IL(REF) = 1 mA 7 10 13 mA LED Current Difference (Between Largest and Smallest LED Currents) V LED = 5V I LED = 2 mA 0.12 0.4 mA I LED = 20 mA 1.2 3 LED Current Regulation 2V ≤ V LED ≤ 17V I LED = 2 mA 0.1 0.25 mA I LED = 20 mA 1 3 Dropout Voltage I LED(ON) = 20 mA, VLED = 5V, ∆I LED = 2mA 1.5 V Saturation Voltage I LED = 2.0 mA, IL(REF) = 0.4 mA 0.15 0.4 V Output Leakage, Each Collector (Bar Mode) (Note 5) 0.1 10 µA Output Leakage (Dot Mode) (Note 5) Pins 10–18 0.1 10 µA Pin 1 60 150 450 µA SUPPLY CURRENT Standby Supply Current (All Outputs Off) V + = 5V, I L(REF) = 0.2 mA 2.4 4.2 mA V + = 20V, I L(REF) = 1.0 mA 6.1 9.2 mA Note 1: Absolute Maximum Ratings indicate limits beyond which damage to the device may occur. Operating Ratings indicate conditions for which the device is func- tional, but do not guarantee specific performance limits. Electrical Characteristics state DC and AC electrical specifications under particular test conditions which guar- antee 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. www.national.com 3 |
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