LT1932
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LT1932

  • Category:LED driver
  • Product Name:Constant current ThinSOT packaged DC/DC LED driver
  • Manufacturers:LT
  • Production Batch Number:11+
  • Encapsulation:ThinSOT
  • Stock Status:There is stock
  • Stock Quantity:2000
  • Minimum order quantity: 1
  • Details:Click here to find a pdf of the LT1932
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  • Product introduction

LT1932 constant current ThinSOT package DC/DC LED driver

peculiarity

  • Up to 80% Efficiency Up to 80% efficiency
  • Inherently Matched LED Current Inherently matched LED current
  • Drives Five White LEDs from 2VDrives five white LEDs from 2V
  • Drives Six White LEDs from 2.7VDrives 6 white LEDs from 2.7V
  • Drives Eight White LEDs from 3VDriver from 3V eight white LEDs
  • Adjustable Control of LED Current Adjustable LED current control
  • Disconnects LEDs In ShutdownDisconnect the LEDs at shutdown
  • 1.2MHz Fixed Frequency SwitchingFixed switching frequency of 1.2MHz
  • Uses Tiny Ceramic CapacitorsUse small ceramic capacitors
  • Uses Tiny 1mm-Tall InductorsIT ADOPTS A MINIATURE 1MM-HIGH-LEVEL INDUCTOR
  • Regulates Current Even When VIN> VOUTEven if the V of the current is regulatedOUT IN>V
  • Operates with VINas Low as 1VThe operating voltage with V can be as low as 1V
  • Low Profile (1mm) ThinSOT™ PackageLow profile (1 mm) in a ThinSOT™ package
  • descriptionThe LT®1932 is a fixed frequency step-up DC/DC converter designed to operate as a constant-current source.®The LT 1932 is a fixed frequency boost DC/DC converter designed to operate as a constant current source. Because it directly regulates output current, the LT1932 is ideal for driving light emitting diodes (LEDs) whose light intensity is proportional to the current passing through them, not the voltage across their terminals.Because it directly regulates the output current, the LT1932 is ideal for driving light-emitting diodes (LEDs) in proportion to the light intensity through which the current passes through them, rather than at their terminal voltage.

    With an input voltage range of 1V to 10V, the device works from a variety of input sources.With an input voltage range of 1V to 10V, the device can be selected from a variety of input sources. The LT1932 accurately regulates LED current even when the input voltage is higher than the LED voltage, greatly simplifying battery-powered designs.The LT1932 accurately regulates the LED current, even when the input voltage is higher than the LED, greatly simplifying the battery-powered design. A single external resistor sets LED current between 5mA and 40mA, which can then be easily adjusted using either a DC voltage or a pulse width modulated (PWM) signal.A single external resistor sets the LED current to 5mA and 40mA, which can then be easily adjusted using a DC voltage or pulse width modulation (PWM) signal. When the LT1932 is placed in shutdown, the LEDs are disconnected from the output, ensuring a quiescent current of under 1µA for the entire circuit.The LT1932 is placed when the output of the LED is turned off to ensure a quiescent current of 1μA throughout the circuit. The device's 1.2MHz switching frequency permits the use of tiny, low profile chip inductors and capacitors to minimize footprint and cost in space-conscious portable applications.The device's 1.2MHz switching frequency allows the use of thin, low-profile chip inductors and capacitors to minimize footprint, space-sensitive, portable applications and costs.

  • apply

    • Cellular TelephonesCellular
    • Handheld ComputersPocket PC
    • Digital CamerasDigital cameras
    • Portable MP3 PlayersPortable MP3 player
    • PagersPager

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