lp3359 Lowpower Semiconductor inc, lp3359 Datasheet
lp3359
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lp3359 Summary of contents
Page 1
... General Description The LP3359 is a parallel white-LED driver with four matched current outputs. It can supply a total output current of 100mA over an input voltage range of 3.0V to 5.5V. The amount of constant current sourced to the outputs is user selectable using one external sense resistor. LP3359 typically draws 0.01µA when placed in shutdown, and 180µ ...
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... Storage Temperature Range ------------------------------------------------------------------------------ -65°C to 150°C Lead Temp (Soldering, 5sec) ------------------------------------------------------------------------------------------ 260°C ESD Rating Human Body Model -----------------------------------------------------------------------------------------2kV Operating Conditions Input Voltage (V ) -------------------------------------------------------------------------------------------------- 3V to 5.5V IN Ambient Temperature (T ) ---------------------------------------------------------------------------------- -40°C to 85°C A LP3359-datasheet Ver.1.1 Nov.-2005 LP3359 Block Diagram ) ---------------------------------------------------------------------------------------------150° LP3359 ...
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... Current Source Headroom HR Voltage I Quiescent Supply Current Q I Shutdown Supply Current SHUT-DOWN LP3359-datasheet Ver.1.1 Nov.-2005 Conditions 3.0V ≤ VIN ≤ 5.5V 2.0V ≤ VLEDX ≤ (VIN-0.4V) RSET=7.5k ILED=95% × ILED(nom), RSET= 4.7K (ILED(nom) approx. 25mA) ILED=95% × ILED(nom), RSET= 12K (ILED(nom) approx. 10mA) ILED=0mA, RSET=Open ILED=0mA, RSET=7 ...
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... Typical Operating Characteristics LP3359-datasheet Ver.1.1 Nov.-2005 - 4 4 LP3359 ...
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... When the voltage on the active-high-logic enable pin is low, the LP3359 will be in shutdown. While disabled, the LP3359 typically draws 0.01µA. There is no internal pull-up or pull-down on the PWM pin of the LP3359, Do not let PWM pin floating. Output Current Capability The LP3359 is capable of providing up to 25mA of current to each of the four outputs given an input voltage of 3 ...
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... I (mA) LED LED Selection The LP3359 is designed to drive white-LEDs with a typical forward voltage of 3.0V to 4.0V. The maximum LED forward voltage that the LP3359 can accommo -date is highly dependant upon V and I (See the section on Output IN LEDX Current Capability for more information on finding maximum V ...
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... Please refer to the Absolute Maximum Rating of the LP3359. Input Capacitor Selection The LP3359 is designed to run off of a fixed input voltage. Depending on the stability and condition of this voltage rail, it may be necessary to add a small input capacitor to help filter out any noise that may be present on the line ...
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... Applications Information LP3359-datasheet Ver.1.1 Nov.-2005 LP3359 - 8 8 ...
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... LP3359-datasheet Ver.1.1 Nov.-2005 LP3359 - 9 9 ...