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MPXV2202DP 数据表(PDF) 654 Page - Motorola, Inc |
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MPXV2202DP 数据表(HTML) 654 Page - Motorola, Inc |
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654 / 670 page  MC145018 4–62 Motorola Sensor Device Data www.motorola.com/semiconductors TIMING PARAMETERS (C = 0.1 µF, Rbias = 8.2 MΩ, VDD = 9.0 V, TA = 25°C, See Figure 6) Characteristics Symbol Min Max Units Oscillator Period No Smoke Smoke tCI 1.46 37.5 1.85 45.8 s ms Oscillator Rise Time tr 10.1 12.3 ms Horn Output On Time (During Smoke) Off Time PWon PWoff 450 450 550 550 ms ms LED Output Between Pulses On Time tLED PWon 35.0 10.1 44.5 12.3 s ms Horn Output On Time (During Low Battery) Between Pulses ton toff 10.1 35.0 12.3 44.5 ms s LOW BATTERY COMPARATOR Figure 1. Block Diagram VDD 45 K 3 LOW V SET 1 DETECT COMP. OUT 280 K 13 SENSITIVITY SET 325 K STROBE OUT 4 VDD + – + – 15 DETECT INPUT DETECT COMPARATOR GUARD AMP + – LO–Z 14 16 ALARM LOGIC POWER–ON RESET OSC AND TIMING I/O 2 11 FEEDBACK 8 10 SILVER BRASS 5 LED VDD = PIN 6 VSS = PIN 9 12 7 VDD TO OTHER UNITS HI–Z VDD Freescale Semiconductor, Inc. For More Information On This Product, Go to: www.freescale.com |
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