A6213KLJ-1-T

• Product Introduction

The A6213 is a single-IC chip-switching voltage regulator that provides a constant current output to drive high-power LEDs. It integrates a high-end N-channel DMOS switch for DC-to-DC buck conversion. The true average current is output using a cycle-by-cycle, controlled on-time method.

The output current is user-selectable by means of an external current-sense resistor. The output voltage automatically adjusts to drive a different number of LEDs within a single string. This guarantees optimum system efficiency.

LED dimming is accomplished by a direct logic input pulse-width modulation (PWM) signal at the enable pin.

The device is housed in a small 8-pin narrow SOIC package (suffix LJ) and is fitted with an exposed heatsink for improved heat dissipation. It is available in a lead (Pb)-free package with 100% matte-tin plated leadframes.

• AEC-Q100 qualified
• 6 to 48 V supply voltage
• True average output current control
• The maximum output is 3.0 A over the entire operating temperature range 
  (A6213-1 for 1.5 A)
• Wave-by-wave throttling
• Integrated MOSFET switches
• Dimming is done via direct logic input or supply voltage
• Internal Control Loop Compensation
• Undervoltage lockout (UVLO) and thermal shutdown protection
• Low-power shutdown (1 μA, typical)
• Robust protection against the following faults:
  • Adjacent pin-to-pin shorts
  • Pin to ground short
  • Component open/short-circuit faults