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LP3361 Datasheet(PDF) 1 Page - Lowpower Semiconductor inc |
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LP3361 Datasheet(HTML) 1 Page - Lowpower Semiconductor inc |
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1 / 6 page  Preliminary Datasheet LP3361 LP3361 – Ver. 1.0 Datasheet Nov.-2008 Page 1 of 6 6-Channel Constant Current White LED Driver General Description The LP3361 is a low-dropout bias supply for white LEDs is a high-performance alternative to the simple ballast resistors used in conventional white LED designs. It supports 6 white LEDs with regulated constant current for uniform intensity. The LP3361 maintains low dropout current regulators. The LP3361 requires a 45mV dropout at a 20mA load on each output to match the LED brightness. The brightness of LEDs can be tuned through a pulse width modulated signal at the PWM pin,the PWM frequency from 200Hz to 10KHz and the Duty from 0 to 100%. The LP3361 is available in a TDFN-10 package. Order Information LP3361 - □ □ □ F: Pb-Free Package Type QV:TDFN-10 Applications LCD Panel Cellular and Smart mobile phone PDA/DSC PMP Features 2.7V to 6V Input Voltage 20mA maxim sink current Dual Panel Driver of WLED PWM tuned LED brightness through EN pin Soft Start Function Built-in Thermal Protection IQ<1uA in Shutdown TDFN-10 Package RoHS Compliant and 100% Lead (Pb)-Free Typical Application Circuit Sub_Panel 2.2uF ON/OFF LP3361 11 2 3 1 8 7 4 6 5 9 10 GND EN1 VDD1 LED1 VDD2 EN2 LED2 LED4 LED3 LED5 LED6 Main_Panel VBAT VBAT Marking Information Please see website. |
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