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LS7634 Datasheet(PDF) 3 Page - LSI Computer Systems |
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LS7634 Datasheet(HTML) 3 Page - LSI Computer Systems |
3 / 4 page TIMING CHARACTERISTICS (See Figures 2, 3 and 4): PARAMETER SYMBOL MIN TYP MAX UNI T CONDITION SYNC Frequency fs 40 - 70 Hz - SHORT Touch TSI 42 - 333 ms 60Hz TSI 50 - 400 ms 50Hz LONG Touch TS2 342 - infinite ms 60Hz TS2 410 - infinite ms 50Hz TRIG pulse width (see Note 5) Tw - 130 - µs 60Hz Tw - 156 - µs 50Hz Conduction Angle ø 50 - 154 deg - ø incremental steps ∆ø - 1.4 - deg - (Note 1) Soft-on slew rate SS - 1.4 - deg/8.33ms 60Hz SS - 1.4 - deg/10ms 50Hz A0 to A1/A2 to A0 slew rate SAA - 1.4 - deg/33.3ms 60Hz (Note 2) SAA - 1.4 - deg/40ms 50Hz A1 to B1/B2 to A2 slew rate SBA - 1.4 - deg/66.7ms 60Hz (Note 3) SBA - 1.4 - deg/80ms 50Hz B1 to B2 delay TBD - 500 - ms 60Hz (Note 4) TBD - 600 - ms 50Hz Note 1: Total number of steps = 77. Note 2: Number of steps from A0 to A1, or A2 to A0 = 55. Note 3: Number of steps from A1 to B1 or B2 to A2 = 21. Note 4: ø is at minimum between B1 and B2. TBD is applicable for LS7634 only. For LS7635 when minimum ø is reached, dimming direction reverses only if the LONG Touch is terminated and reapplied. Note 5: TW = 488us (60Hz), 586us (50Hz) available. Contact factory for details. 7634/7635-071406-3 FIGURE 3. LS7634 TRIG, Ø vs TOUCH (SENS OR EXT) ø TRIG SYNC TW FIGURE 2. TRIG OUTPUT CONDUCTION ANGLE, Ø The information included herein is believed to be accurate and reliable. However, LSI Computer Systems, Inc. assumes no responsibilities for inaccuracies, nor for any infringements of patent rights of others which may result from its use. 150º 100º 50º OFF 150º 100º 50º OFF 150º 100º 50º OFF Ø MODE Ø Ø MODE 1 Ø MODE 2 SENS TS1 TS2 342ms SHORT SHORT LONG SHORT LONG SHORT LONG A2 B2 B1 A1 A0 A2 B2 B1 A2 B2 B1 A1 A0 A0 A0 A1 A2 A2 SLOPE = SBA MEMORY REVERSE REVERSE SLOPE = Ss SLOPES = S AA B2 B2 |
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Similar Description - LS7634 |
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