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UPC271 Folha de dados(PDF) 3 Page - Renesas Technology Corp |
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UPC271 Folha de dados(HTML) 3 Page - Renesas Technology Corp |
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3 / 9 page ![]() UPC271, 311 R03DS0151EJ0100 Rev.1.00 Page 3 of 8 2019.10.1 CIRCUIT CONNECTION EXAMPLE (1) ● BALANCE terminal, BALANCE/STROBE terminal Note Use either pin 5 and pin 6 open (no offset adjustment), the offset adjustment circuit, the strobe circuit (pin 5 open) or the common mode slew rate increase method as shown in above figures. In other cases, malfunction, characteristic deterioration or damage may occur. CIRCUIT CONNECTION EXAMPLE (2) APPLICATION CIRCUIT EXAMPLE ● Output terminal, GND terminal 3 2 + - 7 V + 8 5 6 3 kΩ 3 kΩ オフセット調整 ストローブ 3 2 + - 7 6 1 kΩ TTL, CMOS 3 2 + - 7 6 8 5 V + コモン・モード・スルーレート増加法 BLANCE/STROBE 端子をロウに すると、出力はハイとなります。 ストローブ動作電流は 3 ~ 5 mA の 間で設定してください。 3 2 + - 7 4 1 8 V + VO RL コレクタ出力 3 2 + - 1 4 7 8 RL VO VI (-) VI (+) V + エミッタ出力 エミッタ出力ですので、 VI (+) > VI (-) で VO はロウとなります。 スレッシュホールド電圧 VTH (High) ≒ VREF + R1 RL + R2 + R1 (VRL -VREF) VTH (Low) ≒ VREF - R1 R1 + R2 (VREF -VOL) (VRL >VREF > VOL) OUTPUT RL V + INPUT VRL VREF + - R2 R1 V - GND Offset Adjustment Common Mode Slew Rate Increase Method Output goes high when BALANCE/STROBE terminal is low. Set the strobe operating current between 3 to 5mA Strobe Open Collector Output Comparator with Hysteresis Emitter Follower Output When VI (+) > VI (-), VO is low because emitter follower output. Threshold Voltage |
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