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A6213

Allegro
Part Number A6213
Manufacturer Allegro
Published Dec 3, 2016
Description PWM Dimmable Buck Regulator LED Driver
Detailed Description A6213 and A6213-1 Automotive-Grade, Constant-Current PWM Dimmable Buck Regulator LED Driver FEATURES AND BENEFITS • AEC...
Datasheet PDF File A6213 PDF File

A6213
A6213


Overview
A6213 and A6213-1 Automotive-Grade, Constant-Current PWM Dimmable Buck Regulator LED Driver FEATURES AND BENEFITS • AEC-Q100 qualified • Supply voltage 6 to 48 V • True average output current control • 3 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 ▫ Component open/short faults PACKAGE: 8-pin SOICN with exposed thermal pad (suffix LJ): Not to scale DESCRIPTION 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 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.
APPLICATIONS: Automotive lighting • Daytime running lights • Front and rear fog lights • Turn/stop lights • Map light • Dimmable interior lights TYPICAL APPLICATION CIRCUIT VIN (6 to 48 V) GND C1 R1 EN Enable/PWM Dimming (100 Hz to 2 kHz) 1 VIN 2 TON 3 EN 4 CS A6213 SW 8 BOOT 7 C4 PAD GND 6 VCC 5 C5 L1 D1 .
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LED+ LED– RSENSE A62131-DS, Rev.
9 MCO-0000885 January 21, 2013 June 11, 2021 A6213 and A6213-1 Automotive-Grade, Constant-Current PWM Dimmable Buck Regulator LED Driver ...


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