A6213 and A6213-1: Automotive Grade, Constant-Current PWM Dimmable Buck Regulator LED Driver

The A6213 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 pulse width 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.

亚博尊贵会员应用程序:

Automotive lighting

• 日间跑灯
• Front and rear fog lights
• Turn/stop lights
• Map light
• Dimmable interior lights

• AEC-Q100 qualified
• Supply voltage 6 to 48 V
• True average output current control
• 3.0 A maximum output over operating temperature range
  (1.5 A for A6213-1)
• 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
  • 组件打开/短faults