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CA3228 Datasheet(PDF) 5 Page - Harris Corporation |
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CA3228 Datasheet(HTML) 5 Page - Harris Corporation |
5 / 9 page 10-35 CA3228 FIGURE 2. TYPICAL AUTOMOTIVE SPEED CONTROL APPLICATION FIGURE 3. SOLENOID DRIVERS AND SERVO VACUUM CONTROL MECHANISM TYPICAL APPLICATION SEE FIGURE 3 SWITCH FUNCTION VOLTAGE AT TERM. 3 RATIO TO VCC MIN MAX S1 - ON 1.12 - S2 - RESUME 0.725 0.8 S3 - ACCEL 0.482 0.599 S4 - COAST 0.148 0.272 S5 - OFF 0 0.094 IDLE (Note 1) 0.93 0.96 NOTE: 1. All Switches Open 1M 10K CEXT 2.2 µF VCC 10K 2.4M REXT 10K VCC VENT VAC GATE + 2.2 µF 0.001 µF 0.68 µF 0.047 µF 150K 51K 10K VCC 43K 10K 0.1 µF RI 560 R2 10K 8.2K 0.05 µF T.P.A. MOMENTARY CONTACT DRIVER COMMAND SWITCHES S1 S2 S3 S4 S5 T.P.B. VBRAKE ON RESUME SET/ACCEL COAST OFF R3, 2.2K R4,680 R5, 120 V3ON SPEED INPUT FREQUENCY, fS 2.22 Hz/MPH N S ALL RESISTANCE VALUES ARE IN OHMS BRAKE LIGHT BRAKE SWITCH S6 1 2 3 4 5 6 7 8 9 10 11 12 24 23 22 21 20 19 18 17 16 15 14 13 CA3228E (SEE FIGURE 2) VALVE SYSTEM MODE ACCEL CRUISE COAST VAC Open NC (Note 1) NC VENT Close Close (Note 1) NC NOTE: 1. Open or Closed as Required to Maintain Set Speed Error ACCEL CRUISE COAST BRAKE REDUNDANT BRAKE HI-SPEED DROPOUT LO-SPEED DROPOUT VAC (Pin 22) H L L L L L L VENT (Pin 21) H H L L L L L GATE (pin 23) L L L H H H H VCC VAC VENT GATE 0.22 µF +8.2V 1.2K 1.2K 4.7K VOLT. REG 620 0.5W TO AIR +14.4V N.O. N.C. VENT VALVE VAC VALVE TO VACUUM SOURCE DIAPHRAGM VENT SOLENOID VACUUM SOLENOID TO THROTTLE POSITON FEED BACK (OPTIONAL TO PIN 20) |
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Similar Description - CA3228 |
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