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LS7637FO Datasheet(PDF) 3 Page - LSI Computer Systems |
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LS7637FO Datasheet(HTML) 3 Page - LSI Computer Systems |
3 / 7 page TABLE 1 MODE SHORT-ACTIVATION LONG-ACTIVATION DIMMING REVERSAL PRE-ACTIVATION POST-ACTIVATION PRE-ACTIVATION POST-ACTIVATION (Note 5) Ø Ø Ø Ø OFF MAX (Note 1) OFF/MIN Varies up from MIN N/A 0 ON OFF (Note 4) MAX Varies down from MAX N/A INTERMEDIATE Varies from INTERMEDIATE NO OFF MEMORY (Notes 2, 3) OFF/MIN Varies up from MIN N/A 1 ON OFF (Note 4) MAX Varies down from MAX N/A INTERMEDIATE Varies from INTERMEDIATE YES OFF MAX (Note 1) OFF/MIN Varies up from MIN N/A 2 ON OFF (Note 4) MAX Varies down from MAX N/A INTERMEDIATE Varies from INTERMEDIATE YES Note 1: A soft turn-on is produced by slewing up the conduction angle, ø, from minimum at the rate of 1.4O/ 33.3ms (60Hz). Note 2: A soft turn-on is produced by slewing up ø, from minimum to memory. Upon power-up the memory value is defaulted to maximum conduction angle. Note 3: “Memory” refers to the conduction angle, ø, which existed prior to the current off-state. Note 4: A soft turn-off is produced by slewing down ø from the existing conduction angle to off at the rate of 1.4O/ 33.3ms (60Hz). Note 5: NO = Dimming direction does not reverse from prior dimming direction. YES = Dimming direction does reverse from prior dimming direction. N/A = Does not apply. 7636-063008-3 ABSOLUTE MAXIMUM RATINGS: PARAMETER SYMBOL VALUE UNIT DC supply voltage VDD - VSS +16 V Any input voltage VIN VSS - 0.3 to VDD + 0.3 V Operating temperature TA 0 to +90 °C Storage temperature TSTG -65 to +150 °C DC ELECTRICAL CHARACTERISTICS: (TA = +25°C, all voltages referenced to VSS. VDD = +12V unless otherwise noted.) PARAMETER SYMBOL MIN TYP MAX UNIT CONDITION Supply voltage VDD 10 12 15 V - Supply current IDD - 0.8 1 mA Output unloaded VDD = +12V SYNC Lo VISL - - 5.7 V - SYNC Hi VISH 6.4 - - V - SENS Lo VIEL - - 4.5 V - SENS Hi VIEH 7.7 - - V - GATE DRIVE Source Current IGSR 4 - - mA VOH = 11.5V Sink Current IGSN 4 - - mA VOL = 0.5V OVC -- 0.35 - V - |
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