The A6217KLJTR 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 (buck) conversion for DC-DC step-down. Using a true average current output cycle-by-cycle, controlled on-time method. The output current is user selectable through an external current sense resistor. The output voltage is automatically regulated to drive various numbers of LEDs in a single string. This ensures optimum system efficiency. LED dimming is achieved through a direct logic input pulse width modulation (PWM) signal on the enable pin.

The device is available as a 3mm × 3mm side wettable 10-pin DFN (suffix EJ) or 8-pin narrow SOIC (suffix LJ), both with exposed pads for enhanced thermal dissipation. Both packages are lead (Pb) free and plated with 100% matte tin leadframe.

Product Specifications:

Manufacturer: A6217KLJTR

Product Category: LED Lighting Driver

RoHS: Details

Series: A6217

Installation style: SMD/SMT

Package / Case: SOIC-Narrow-8

Number of outputs: 1 Output

Output current: 3 A

Input voltage (minimum): 6 V

Input voltage (max): 48 V

Topology: Buck

Operating frequency: 11 kHz

Output Voltage: Adjustable

Minimum operating temperature: - 40 C

Maximum operating temperature: + 125 C

Package: Reel

Dimming: With Dimming

Input Voltage: 6 V to 48 V

Moisture Sensitivity: Yes

Number of channels: 1 Channel

Output Type: Adjustable

Product: LED Drivers

Product Type: LED Lighting Drivers

Subcategory: Driver ICs

Supply Current—Maximum: 2.5 mA

Brand Names: Automotive-Grade, Constant-Current

Type: Switching Regulator