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CS291N14 Datasheet(PDF) 3 Page - Cherry Semiconductor Corporation |
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CS291N14 Datasheet(HTML) 3 Page - Cherry Semiconductor Corporation |
3 / 4 page 3 Package Pin Description PACKAGE PIN # PIN SYMBOL FUNCTION 16 lead SO wide 14 lead PDIP CS290 CS291 1 6 6 Gnd Signal Ground. 2 2 3 MB Master Bias. Sets up operating currents on the IC with exter- nal resistor. 3 3 4 AC Adaptive Capacitor. Follows the 25/75 capacitor. Voltage trip points control the Output for setting dwell. 4 4 5 25/75 Run Capacitor. Provides 25%/75% charge and discharge current to an external capacitor for setting dwell. 55 NC VIN+ Input pin +. 67 7 VIN− Input pin −. 7 8 8 Start Input pin to put device in the “start mode”. 89 9 VCC Supply input voltage. 9 10 10 D Supply current to output pin. 10 11 11 CVS Collector Voltage Sense. Input for flyback detect. 11 12 12 OUT Output. Driver for external darlington. 12 1,13,16 1,2,16 NC No connection. 13 14 14 CS Current Sense. Feedback for max coil current. 14 15 15 BI Battery Int. Input for “stall mode” of operation NC NC 13 Test Factory test pin. Pin should be grounded in customer application. PARAMETER TEST CONDITIONS MIN TYP MAX UNIT Electrical Characteristics: 6V < VB < 16V, −30°C < TA < 125°C s Dwell: continued Excess Dwell @ 200Hz VBAT = 14V 14 20.8 % (Run Mode) Reduced Dwell Threshold 16.6 21.0 V Reduced Dwell Hysteresis 200 800 mV Reduced Dwell VBAT = 20V 4.0 6.0 % Typical Performance Characteristics 40 30 20 10 0 Time Current Limit Spark Plug Fires Dwell Time Dwell Time Normal Run Mode 17.5% High Voltage Mode 5.0% Start Mode 50.0% Timing Diagram, ICOIL vs. Time |
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Similar Description - CS291N14 |
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