AX995 Datasheet. Www.s Manuals.com. R1.1 Axelite

User Manual: Datasheets AX995, AX995SA.

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 1/8 Axelite Confidential Materials, do not copy or distribute without written consent. Rev.1.1 Aug.25, 2010 AX995     1.6X Linear Fan Driver with VO Fully On Control  GENERAL DESCRIPTION           The AX995 is a low dropout linear regulator which is designed to power a DC fan and  delivers up to  600mA output  current.  The  output  voltage  follows the  1.6  times  of VSET  voltage  and  typical  dropout  voltage  is  only  150mV  (typical)  at  600mA  output current. The VSET voltage must be larger than 1V to guarantee VO 1.6 times of VSET. A FONpin turns VO output fully on when given low. The features of current limit (with fold back  current)  and  over  temperature  protection  protect  the  device  against  current over-loads and over temperature. The AX995 is available in a SOP-8 package.  FEATURES - Low Dropout Voltage: 150mV@0.6A - VO Follows 1.6 times of VSET - FONPin to Turn VO Fully On - Stable with Low ESR Ceramic Capacitors - Current-Limit and Thermal Shutdown Protection   - SOP-8 Pb-Free Package  BLOCK DIAGRAM  Current Limit andShort Protection -      +VIN VOGNDError AmpThermalShutdownVO Fully On LogicVSETFON
 2/8 Axelite Confidential Materials, do not copy or distribute without written consent. Rev.1.1 Aug.25, 2010 AX995       PIN ASSIGNMENT The package of AX995 is SOP-8L; the pin assignment is given by: ( Top View  )12348765VOVSETSOP-8LAX995FONVINGNDGNDGNDGND  Name Description GND GND pin VIN IC power supply pin VO Output Pin. Its voltage is 1.6    times of VSET VSET This  pin  sets  the  output  voltage.  Its voltage  must  be  larger  than  1V  to guarantee VO 1.6 times of VSET FON FONInput. Pulling this pin below 0.4V turns  the  regulator  fully  on.  Internally pulled high.  ORDER/MARKING INFORMATION Order Information Top Marking Package TypeS: SOP-8LAX995    X  X PackingBlank : TubeA : Taping LogoYAX Part number ID code:internal WW: 01~52 Year: 10=2010          11=2011 99 5YWWX  ABSOLUTE MAXIMUM RATINGS (at TA=25°C) Characteristics Symbol Rating Unit VIN Supply Voltage VIN -0.3 to 6.5 V FONInput Voltage VFON -0.3 to VIN V VSET Voltage VSET -0.3 to VIN V Power Dissipation PD Internally limited W Storage Temperature Range TST -65 to +150 °C Junction Temperature Range TJ -40 to 125 °C Operating Temperature Range TOP -40 to +85 °C Thermal Resistance from Junction to case θJC 20 °C/W Thermal Resistance from Junction to ambient   θJA 60 °C/W Note: θJA is measured with the PCB copper area approximately 1.5 in2 (Multi-layer)

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