
The MAQ3203 is a hysteretic, step-down, constant-current, High-Brightness LED (HB LED) driver. It provides an ideal solution for interior/exterior lighting, architectural and ambient lighting, LED bulbs, and other general illumination applications.
The MAQ3203 is well suited for lighting applications requiring a wide-input voltage range. The hysteretic control gives good supply rejection and fast response during load transients and PWM dimming. The high-side current sensing and on-chip current-sense amplifier delivers LED current with ±5% accuracy. An external high-side current-sense resistor is used to set the output current.
The MAQ3203 offers a dedicated PWM input (DIM) which enables a wide range of pulsed dimming. A high-frequency switching operation up to 1.5MHz allows the use of smaller external components minimizing space and cost. The MAQ3203 offers frequency dither feature for EMI control.
The MAQ3203 operates over a junction temperature from ?40°C to +125°C and is available in an 8-pin SOIC package. The MAQ3203 is AEC-Q100 qualified for automotive applications.
AEC-Q100 qualified
4.5V to 42V input voltage range
High efficiency (>90%)
±5% LED current accuracy
Dither enabled for low EMI
High-side current sense
Dedicated dimming control input
Hysteretic control (no compensation)
Up to 1.5MHz switching frequency
Adjustable constant LED current
Over-temperature protection
?40°C to +125°C junction temperature range
MAQ3203 封裝圖
MAQ3203 封裝圖
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