EV8042DF-00C – HIGH CURRENT, DUAL CHANNEL POWER HALF-BRIDGE

EV8042-00C Rev. 1.0

www.MonolithicPower.com

4

7/26/2011

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QUICK START GUIDE

The EV8042DF-00C comes pre-configured to operate as a BTL (Bridge-Tied Load) audio power driver,

played to a speaker connected to the output. For BTL operation, follow the steps in the Quick Start

Guide for BTL Operation section. For Single-Ended operation, make modifications and follow the steps

as described in the Quick Start Guide for Single-Ended Operation section.

Quick Start Guide for BTL (Bridge-Tied Load) Operation

Input/Output Requirements

1. Power supply: 7.5V to 24V.

3. Speaker Load: 4Ω or 8Ω.

Setup Condition for Operation

4. Connect the speaker between SPK_OUT1 and SPK_OUT2 terminals.

respectively. Use the GND terminal between PWM1 and PWM2 as the ground connection for

the PWM inputs.

6. Apply power to the board.

7. Audio should be heard through the speaker.

Quick Start Guide for SE (Single-Ended) Operation

Input/Output Requirements

1. Power supply: 7.5V to 24V.Stereo PWM Signal Source.

2. Two Speaker Loads: 4Ω or 8Ω each.

Setup Condition for Operation

3. Remove C10 and connect the speakers as shown in Figure 3.

4. Connect the stereo PWM signal source to the EV board. Connect channel 1 to PWM1 and

channel 2 to PWM2, respectively. Use the GND terminals between PWM1 and PWM2 as the

ground connections for the PWM inputs.

5. Apply power to the board.

6. Audio should be heard through the speakers.