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PAM2846KR Datasheet(PDF) 6 Page - Power Analog Micoelectronics |
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PAM2846KR Datasheet(HTML) 6 Page - Power Analog Micoelectronics |
6 / 14 page Electrical Characteristic T =25°C, V =ENA=12V, L=22 H, Rset=10k unless otherwise noted . AIN μΩ , , Power Analog Microelectronics Inc 6 www.poweranalog.com PAM2846 Integrated 6 String LED Boost Type Driver PARAMETER Conditions Min Typ Max Units LED Controller Stage I=190*1.2V/Riset, Riset=7.68k 30 mA I=190*1.2V/Riset, Riset=11.3k 20 mA Full-Scale LED_Output Current I=190*1.2V/Riset, Riset=22.6k 10 mA LED current matching -3 1 +3 % Iset Voltage 1.2 V Minimums LED voltage 400 mV Analog Dimming Range I=190*1.2V /Riset I/32 I mA PWM Dimming Frequency 100 1k Hz Fault Protection LED_ Overvoltage Threshold 4.6 4.9 5.1 V LED_ Overvoltage Hysteresis 1 V Overvoltage Threshold 1.2 V Overvoltage Hysteresis 80 mV Thermal-Shutdown 150 °C Thermal-Shutdown Hysteresis 30 °C Controll Interface EN High 1.5 V EN Low 0.4 V PWMD High 1.5 V PWMD Low 0.4 V Fsel High Vcc_5V- 0.5 V Fsel Midlevel 1 2 V Fsel Low 0.5 V EN Min pulse width 0.5 μs EN Max pulse width 10 μs EN off delay 200 μs single wire dimming low level single wire dimming low level single wire dimming low level 07/2008 Rev 1.2 |
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