Datasheet for the Allegro MicroSystems A6213, a 3-A constant-current buck regulator for automotive LED applications with PWM dimming.
The A6213 is a single IC switching regulator designed to provide constant-current output for driving high-power LEDs in automotive lighting applications. It features a high-side N-channel DMOS switch for DC-to-DC step-down (buck) conversion and integrates a true average current control method using a cycle-by-cycle, controlled on-time technique. The device is available in a compact 8-pin narrow SOIC package with an exposed thermal pad for enhanced heat dissipation.
| Supply Voltage | 6 to 48 V |
|---|---|
| Maximum Output Current | 3.0 A |
| Operating Ambient Temperature | -40 to 125 C |
| Maximum Junction Temperature | 150 C |
| Package Type | 8-pin SOICN with exposed thermal pad |
The device provides a maximum output current of 3.0 A over the operating temperature range.
The LED current is user-selectable by an external current sense resistor connected to the CS pin.