LM2917M-8 National Semiconductor, LM2917M-8 Datasheet
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LM2917M-8
Specifications of LM2917M-8
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LM2917M-8 Summary of contents
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... Hand-held tachometer ■ Speed governors ■ Cruise control ■ Automotive door lock control ■ Clutch control ■ Horn control ■ Touch or sound switches 794201 Order Number LM2917M-8 or LM2917N-8 See NS Package Number M08A or N08E 7942 December 9, 2008 and below ground CC 794202 www.national.com ...
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... N14A 2 794204 Package Supplied Marking As LM2907M-8 Rail of 95 LM2907M-8 Reel of 2500 LM2907M Rail of 55 LM2907M Reel of 2500 LM2907N-8 Rail of 40 LM2907N Rail of 25 LM2917M-8 Rail of 95 LM2917M-8 Reel of 2500 LM2917M Rail of 55 LM2917M Reel of 2500 LM2917N-8 Rail of 40 LM2917N Rail of 25 ...
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... Absolute Maximum Ratings If Military/Aerospace specified devices are required, please contact the National Semiconductor Sales Office/ Distributors for availability and specifications. Supply Voltage Supply Current (Zener Options) Collector Voltage Differential Input Voltage Tachometer Op Amp/Comparator Input Voltage Range Tachometer LM2907-8, LM2917-8 LM2907, LM2917 ...
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Note 5: Nonlinearity is defined as the deviation of V 1000 pF 68k and C2 = 0.22 mFd. Test Circuit and Waveform www.national.com (@ pin 3) for kHz from a straight line defined by the ...
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Typical Performance Characteristics Tachometer Linearity vs Temperature Total Supply Current Normalized Tachometer Output (K) vs Temperature Tachometer Linearity 794246 794240 Normalized Tachometer Output (K) 794242 5 vs Temperature 794247 Zener Voltage vs Temperature 794241 vs Temperature 794243 www.national.com ...
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Tachometer Currents I vs Supply Voltage Tachometer Linearity Amp Output Transistor Characteristics www.national.com and 794244 794248 794250 6 Tachometer Currents I and Temperature 794245 Tachometer Input Hysteresis vs Temperature 794249 ...
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Applications Information The LM2907 series of tachometer circuits is designed for minimum external part count applications and maximum ver- satility. In order to fully exploit its features and advantages let's examine its theory of operation. The first stage of oper- ...
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Typical Applications ”Speed Switch”, Load is Energized when f www.national.com Minimum Component Tachometer ≥ 2RC 794208 794209 ...
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Zener Regulated Frequency to Voltage Converter Breaker Point Dwell Meter 9 794210 794211 www.national.com ...
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I www.national.com Voltage Driven Meter Indicating Engine RPM 400 Hz or 6000 ERPM (8 Cylinder Engine) O Current Driven Meter Indicating Engine RPM = 300 Hz or 6000 ERPM (6 Cylinder Engine) O ...
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Capacitance Meter V = 1V–10V for C = 0.01 to 0.1 mFd OUT 111k) Two-Wire Remote Speed Switch 11 794214 794215 www.national.com ...
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Variable Reluctance Magnetic Pickup Buffer Circuits Precision two-shot output frequency equals twice input frequency. Pulse height = V ZENER www.national.com 100 Cycle Delay Switch 794239 12 794216 794217 ...
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Finger Touch or Contact Switch ≥ Flashing begins when f 100 Hz. IN Flash rate increases with input frequency increase beyond trip point. 794218 Flashing LED Indicates Overspeed 13 794219 794220 www.national.com ...
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Frequency to Voltage Converter with 2 Pole Butterworth Filter to Reduce Ripple Overspeed Latch www.national.com 794222 14 794221 794223 ...
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Some Frequency Switch Applications May Require Hysteresis in the Comparator Function Which can be Implemented in Several Ways 794224 794225 794227 15 794226 794228 www.national.com ...
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Changing the Output Voltage for an Input Frequency of Zero Changing Tachometer Gain Curve or Clamping the Minimum Output Voltage www.national.com 794229 794231 16 794230 794232 ...
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Anti-Skid Circuit Functions “Select-Low” Circuit “Select-High” Circuit V is proportional to the lower OUT of the two input wheel speeds. 794233 V is proportional to the higher OUT of the two input wheel speeds. 794235 “Select-Average” Circuit 17 794234 794236 ...
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Equivalent Schematic Diagram www.national.com 18 ...
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... Physical Dimensions inches (millimeters) unless otherwise noted 8-Lead (0.150 Wide) Molded Small Outline Package, JEDEC Order Number LM2907M-8 or LM2917M-8 NS Package Number M08A 19 www.national.com ...
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... Molded SO Package (M) Order Number LM2907M or LM2917M NS Package Number M14A Molded Dual-In-Line Package (N) Order Number LM2907N-8 or LM2917N-8 NS Package Number N08E 20 ...
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Molded Dual-In-Line Package (N) Order Number LM2907N or LM2917N NS Package Number N14A 21 www.national.com ...
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... For more National Semiconductor product information and proven design tools, visit the following Web sites at: Products Amplifiers www.national.com/amplifiers Audio www.national.com/audio Clock and Timing www.national.com/timing Data Converters www.national.com/adc Interface www.national.com/interface LVDS www.national.com/lvds Power Management www.national.com/power Switching Regulators www.national.com/switchers LDOs www.national.com/ldo LED Lighting www ...