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LS7232ND Datasheet(PDF) 3 Page - LSI Computer Systems |
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LS7232ND Datasheet(HTML) 3 Page - LSI Computer Systems |
3 / 5 page ABSOLUTE MAXIMUM RATINGS: PARAMETER SYMBOL VALUE UNIT DC Supply Voltage VSS +20 V Any Input Voltage VIN Vss - 20 to Vss + 0.5 V Operating Temperature TA 0 to +80 ˚C Storage Temperature TSTG -65 to +150 ˚C DC ELECTRICAL CHARACTERISTICS: (TA = 25˚C, all voltages referenced to VDD) PARAMETER SYMBOL MIN TYP MAX UNIT CONDITION Supply Voltage Vss +12 – +18 V - Supply Current Iss – 1.0 1.4 mA Vss = +15V, output off Input Voltages: SYNC Lo VIRL 0 – Vss - 9.5 V - SYNC Hi VIRH Vss - 5.5 – Vss V - SENS Lo VIOL 0 – Vss - 8 V - SENS Hi VIOH Vss - 2 – Vss V - EXT Lo VIVL 0 – Vss - 8 V - EXT Hi VIVH Vss - 2 – Vss V - Input Current: SYNC, SENS, EXT Hi IIH – – 110 µA With Series 1.5M Ω Resistor to AC Line SYNC, SENS, EXT Lo IIL – – 100 nA - TRIG Hi Voltage VOH – Vss – V - TRIG Lo Voltage VOL – Vss - 8 – V Vss = +15V TRIG Sink Current IOS 25 – – mA Vss = +15V VOL = Vss - 4V TIMING CHARACTERISTICS (See Figures 2 and 3): All timings are based on fs = 60Hz, unless otherwise specified. 50Hz timings are 1.2 times 60Hz timings. PARAMETER SYMBOL MIN TYP MAX UNIT SYNC Frequency fs 40 - 70 Hz SHORT TOUCH TS1 42 - 333 ms (ON/OFF Operation) LONG TOUCH TS2 342 - infinite ms (Dimming Operation) TRIG Pulse Width TW - 33 - µs TRIG Conduction-Angle Ø 41 - 158 deg (See Note 1) Ø Period (Max to Max in - - 7.64 - sec continuous dimming) A1B1 = B2A2 duration - - 934 - ms B1B2 Min. intensity dwell - - 500 - ms ø TRIG SYNC T W T W FIGURE 3. TRIG OUTPUT CONDUCTION ANGLE, Ø NOTE 1. In the circuit schematic shown in Figure 5, the SYNC input signal is delayed in phase with respect to the AC Line by about 7°. This delay reduces the conduction angle, Ø, with respect to the AC Line by 7° from the values shown above. 7232ND-012703-3 |
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