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AD7312Q Datasheet(PDF) 5 Page - List of Unclassifed Manufacturers |
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AD7312Q Datasheet(HTML) 5 Page - List of Unclassifed Manufacturers |
5 / 12 page AD7312 1/4 to 1/11 Duty VFD Controller/Driver & Standby Master/Slave (Preliminary) Anachip Corp. www.anachip.com.tw Rev. A2 Dec 29, 2003 5/12 Absolute Maximum Ratings (T A=25 oC,V SS=0V ) Parameter Symbol Rating Unit Logic Supply Voltage VDD -0.5 to +7.0 V Driver Supply Voltage VEE VDD +0.5 to VDD -40 V Logic Input Voltage VI1 -0.5 to VDD +0.5 V VFD Driver Output Voltage VO2 VEE-0.5 to VDD +0.5 V LED Driver Output Current IO1 +15 mA VFD Driver Output Current IO2 -40 (grid) -15 (segment) mA Operating Ambient Temperature TOPT -25 to +85 oC Storage Temperature TSTG -50 to +125 oC Operating Conditions (T A=0 to +70 oC,V SS=0V) Parameter Symbol Conditions Min. Typ. Max. Unit Logic Supply Voltage VDD 4.5 5 5.5 V High-Level Input Voltage VIH 0.7·VDD VDD V Low-Level Input Voltage VIL 0 0.3·VDD V Driver Supply Voltage VEE 0 VDD-35 V DC Characteristics (T A=0 to 70 oC, V DD=4.5 to 5.5V, VSS=0V, VEE=VDD-35V) Parameter Symbol Conditions Min. Typ. Max. Unit High-Level Output Voltage VOH1 LED1/LED4, IOH1=-1mA 0.9VDD V Low-Level Output Voltage VOL1 LED1/LED4, IOL1=12mA 1 V Low-Level Output Voltage VOL2 DOUT, IOL2=2mA 0.4 V High-Level Output Current IOH21 VO=VDD-2V, Seg1 to Seg11 -3 mA High-Level Output Current IOH22 VO=VDD-2V, Grid 1 to Grid6 Seg12/Grid11 to Seg16/Grid7 -15 mA Driver Leakage Current IOLEAK VO=VDD-35V, driver off -10 μ A Output Pull-Down Resistor RL Driver output 50 100 150 kΩ High-Level Input Voltage VIH 0.7VDD V Low-Level Input Voltage VIL 0.3VDD V AC Characteristics (T a=0 to +70 oC,V DD=4.5 to 5.5 V, VEE=-30V) Parameter Symbol Conditions Min. Typ. Max. Unit Oscillation Frequency fOSC R=51 kΩ 350 500 650 KHZ Maximum Clock Frequency fmax. Duty=50% 1 MHZ Clock Pulse Width PWCLK 500 ns Strobe Pulse Width PWSTB 1 µs Data Setup Time tSETUP 100 ns Data Hold Time tHOLD 100 ns Clock-Strobe Time tCLK-STB CLK↑→STB↑ 1 µs Wait Time tWAIT CLK↑→CLK↓(Note) 1 µs tPHZ CLK→DOUT 300 ns Propagation delay time tPZL CL=15pF,RL=10 kΩ 100 ns Rise time tTZH 2 µs Fall time tTHZ CL=300pF Segn,Gridn 160 µs Note : Refer to page 8. |
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