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    A6211GLJTR-T

    The A6211 is a single IC switching regulator that provides
    constant-current output to drive high-power LEDs. It integrates
    a high-side N-channel DMOS switch for DC-to-DC step- down
    (buck) conversion. A true average current is output using a
    cycle-by-cycle, controlled on-time method.
    Output current is user-selectable by an external current sense
    resistor. Output voltage is automatically adjusted to drive
    various numbers of LEDs in a single string. This ensures the
    optimal system efficiency.
    LED dimming is accomplished by a direct logic input pulsewidth modulation (PWM) signal at the enable pin.
    The device is provided in a compact 8-pin narrow SOIC package
    (suffix LJ) with exposed pad for enhanced thermal dissipation.
    It is lead (Pb) free, with 100% matte-tin leadframe plating.

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      SPECIFICATION

      Supply voltage 6 to 48 V
      • True average output current control
      • 3 A maximum output over operating temperature range
      • Cycle-by-cycle current limit
      • Integrated MOSFET switch
      • Dimming via direct logic input or power supply voltage
      • Internal control loop compensation
      • Undervoltage lockout (UVLO) and thermal shutdown
      protection
      • Low power shutdown (1 µA typical)
      • Robust protection against:
      □ Adjacent pin-to-pin short
      □ Pin-to-GND short
      □ Component open/short faults