ECT6322M|PWM Control 1.5A Step-Down Converter

ECT6322M|PWM Control 1.5A Step-Down Converter

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General Description

The ECT6322M is a continuous mode inductive step-down converter, designed for driving single or multiple series
connected LEDs efficiently from a voltage source higher than voltage and external components, this can provide up to 42 watts of output power.

The ECT6322M includes the output switch and a high-side output current sensing circuit, which uses an external resistor to set the nominal average output current.

Output current can be adjusted above, or below the set value, by applying an external control signal to the ‘ADJ’ pin. The ADJ pin will accept either a DC voltage or a PWM waveform.

Depending upon the control frequency, this will provide either a continuous or a gated output current.

The PWM filter components are contained within the chip. The ECT6322M is available in SOT-23 and SOP-8 Lead-free package.

Features

■ Wide Input Voltage Range: 7V to 30V
■ LED Output Current Up to 1.5A
■ Soft-start
■ Single pin on/off and brightness control using DC voltage or PWM
■ High efficiency (up to 97%)
■ Up to 1MHz switching frequency
■ Typical 5% output current accuracy
■ SOT-23 and SOP-8 Lead-free Package

Application

■ LED/Display Back Light Driver
■ Lightings
■ Portable Communication Devices
■ Handheld Electronics


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我们提供具有灵活弹性的客制化IC与模组设计

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