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AP3608E Datasheet(PDF) 7 Page - BCD Semiconductor Manufacturing Limited |
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AP3608E Datasheet(HTML) 7 Page - BCD Semiconductor Manufacturing Limited |
7 / 15 page EIGHT-CHANNEL CONSTANT CURRENT SINK WITH CURRENT MATCH AP3608E 7 Mar. 2011 Rev. 1. 5 BCD Semiconductor Manufacturing Limited Data Sheet 0 2040 6080 100 0 2 4 6 8 10 12 14 16 18 20 Duty Cycle (%) -60 -40 -20 0 20 40 60 80 100 120 140 18.0 18.5 19.0 19.5 20.0 20.5 21.0 21.5 22.0 Temperature ( oC) R ISET=23K Parameter Symbol Conditions Min Typ Max Unit Enable Section EN Pin High Level Threshold Voltage VIH_EN 1.8 V EN Pin Low Level Threshold Voltage VIL_EN 0.8 V PWM Dimming Section PWM High Level Threshold Voltage VIH_PWM 1.8 V PWM Low Level Threshold Voltage VIL_PWM 0.8 V Interface Section SDB High Level Output Voltage VOH 2.4 V SDB Low Level Output Voltage VOL 0.4 V Feedback Output Current IFB 515 µA Total Device Self-check Voltage @ Open LED VCHECK 3.0 V Thermal Shutdown Temperature TOTSD 160 oC Thermal Shutdown Hysteresis THYS 20 oC Electrical Characteristics (Continued) Limits in standard typeface are guaranteed for VIN=VEN=5V, RISET=8kΩ,, TA=25oC, unless otherwise specified. Typical Performance Characteristics VIN=VEN=5V, RISET=8kΩ,, TA=25oC, unless otherwise specified. Figure 4. Current per Channel vs. Temperature Figure 5. Current per Channel vs. Duty Cycle |
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