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PAM2842RGR Datasheet(PDF) 6 Page - Power Analog Micoelectronics |
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PAM2842RGR Datasheet(HTML) 6 Page - Power Analog Micoelectronics |
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6 / 17 page  Electrical Characteristic V =V =24V, 1Wx10 LEDs, T =25°C, unless otherwise noted EN DD A . 6 , Power Analog Microelectronics Inc PAM2842 High Power LED Driver www.poweranalog.com PARAMETER Conditions Min Typ Max Units Input Voltage Range 5.5 40 V ENA=high (no switching) 1 2 mA ENA =high (1M switching frequency) 6 mA ENA =high (500k switching frequency) 3 mA ENA =high (200k switching frequency) 1.6 mA Quiescent Current ENA =low 5 10 μA Feedback Voltage, Low Side VFB=VSENSE+ -AGND, VSENSE-=AGND 95 100 105 mV Feedback Voltage, High Side VFB=VSENSE+ -VSENSE- 95 100 105 mV LED Current Line Regulation IO=350mA 0.02 %/V LED Current Load Regulation 1.0 % LDO Stage VDD_5V No switching 4.5 5 5.5 V VDD_5V current_limit No switching 14 74 90 mA VDD_5V UVLO Threshold No switching 3.7 4.0 4.3 V VDD_5V UVLO Hysteresis No switching 200 mV VDD_DR No switching 4.5 5 5.5 V VDD_DR current_limit No switching 14 50 90 mA VDD_DR UVLO Threshold No switching 3.7 4.0 4.3 V VDD_DR UVLO Hysteresis No switching 200 mV Switch Stage Switch Rdson VDD_5V=5V 0.1 Ω Switch Current Limit 3.5 A Switch Leakage Current 50 μA RT Voltage R RT=71kΩ 1.1 1.2 1.3 V RRT=30kΩ 800k 1M 1.2M Hz RRT=71kΩ 400 500 600 kHz Switching Frequency* RRT=180kΩ 160 200 240 kHz F SW=1MHz 10 % FSW=500kHz 5 % Min Duty Cycle FSW=200kHz 2.5 % Low Side Sense 95 % MaxDutyCycle High Side Sense 100 % Vc Source Current Feedback voltage=0 30 μA Vc Sink Current Feedback voltage=0 30 μA 09/2008 Rev 1.1 * Switching Frequency () 12 10 24 12 SW RT F Rk = ´+ , reference value |
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