cs4412a Cirrus Logic, Inc., cs4412a Datasheet

cs4412a

Manufacturer Part Number

cs4412a

Description

30w Quad Half-bridge Digital Amplifier Power Stage

Manufacturer

Cirrus Logic, Inc.

Datasheet

1.CS4412A.pdf (24 pages)

Current page: 1 of 24
Download datasheet (429Kb)

Advance Product Information

Features

Thermal Data

Configuration

Configurable Outputs (10% THD+N)

Space-Efficient Thermally-Enhanced QFN

> 100 dB Dynamic Range - System Level

< 0.1% THD+N @ 1 W - System Level

Built-In Protection with Error Reporting

+8 V to +18 V High Voltage Supply

PWM Popguard

No Bootstrap Required

Low Quiescent Current

Low Power Standby Mode

–

Hardware

http://www.cirrus.com

Current &

Reset

2 x 15 W into 8 Ω, Full-Bridge

1 x 30 W into 4 Ω, Parallel Full-Bridge

4 x 7.5 W into 4 Ω, Half-Bridge

2 x 7.5 W into 4 Ω, Half-Bridge + 1 x 15 W

into 8 Ω, Full-Bridge

No External Heat Sink Required

Over-Current

Thermal Warning and Overload

Under-Voltage

In 1

In 2

In 3

In 4

W Quad Half-Bridge Digital Amplifier Power Stage

Technology for Quiet Startup

Error Reporting

Configuration

Control Logic

Protection &

Mode

2.5 V to 5 V

This document contains information for a new product.

Cirrus Logic reserves the right to modify this product without notice.

Time Insertion

Non-Overlap

Common Applications

General Description

The CS4412A is a high-efficiency power stage for digital

Class-D amplifiers designed to input PWM signals from

a modulator such as the CS4525. The power stage out-

puts can be configured as four half-bridge channels, two

half-bridge channels and one full-bridge channel, two

full-bridge channels, or one parallel full-bridge channel.

The CS4412A integrates on-chip over-current, under-

voltage, over-temperature protection, and error report-

ing as well as a thermal warning indicator. The low

delivering high efficiency which allows small device

package and lower power supplies.

The CS4412A is available in a 48-pin QFN package in

Commercial grade (-10°C to +70°C). The CRD4412A

customer reference design is also available. Please re-

fer to

ordering information.

DS(ON)

Integrated Digital Televisions

Portable Media Player Docking Stations

Mini/Micro Shelf Systems

Powered Desktop Speakers

“Ordering Information” on page 23

outputs can source up to 2.5 A peak current,

Drive

Gate

CS4412A

8 V to 18 V

PGND

for complete

DS786A2

Amplifier

JUN '08

Out 1

Out 2

Out 3

Out 4

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