MAX9788
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MAX9788

14VP-P, Class G Ceramic Speaker Driver

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Class G, CeraMax Technology Drives Ceramic Speakers in the Smallest Footprint

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Part Details
Part Models 3
1ku List Price Starting From $1.28
Features
  • Integrated Charge-Pump Power Supply—No Inductor Required
  • 14VP-P Voltage Swing into Piezoelectric Speaker
  • 2.7V to 5.5V Single-Supply Operation
  • Clickless/Popless Operation
  • Small Thermally Efficient Packages
    • 4mm x 4mm 28-Pin TQFN
    • 2mm x 2.5mm 20-Bump WLP
Additional Details
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The MAX9788 features a mono Class G power amplifier with an integrated inverting charge-pump power supply specifically designed to drive the high capacitance of a ceramic loudspeaker. The charge pump can supply greater than 700mA of peak output current at 5.5VDC, guaranteeing an output of 14VP-P.

The MAX9788 maximizes battery life by offering high-performance efficiency. Maxim's proprietary Class G output stage provides efficiency levels greater than Class AB devices without the EMI penalties commonly associated with Class D amplifiers.

The MAX9788 is ideally suited to deliver the high output-voltage swing required to drive ceramic/piezoelectric speakers.

The device utilizes fully differential inputs and outputs, comprehensive click-and-pop suppression, shutdown control, and soft-start circuitry. The MAX9788 is fully specified over the -40°C to +85°C extended temperature range and is available in small lead-free 28-pin TQFN (4mm x 4mm) or 20-bump WLP (2mm x 2.5mm) packages.

Applications

  • Cellular Phones
  • Handheld Gaming Consoles
  • MP3 Players
  • Notebook Computers
  • Personal Media Players
  • Smartphones
Part Models 3
1ku List Price Starting From $1.28

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Documentation

Documentation

Part Model Pin/Package Drawing Documentation CAD Symbols, Footprints, and 3D Models
MAX9788ETI+
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MAX9788ETI+T
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MAX9788EWP+TG45
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Product Lifecycle

PCN

Jun 20, 2016

- 1612

ASSEMBLY

MAX9788ETI+

PRODUCTION

MAX9788ETI+T

PRODUCTION

Filter by Model

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Part Models

Product Lifecycle

PCN

Jun 20, 2016

- 1612

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ASSEMBLY

MAX9788ETI+

PRODUCTION

MAX9788ETI+T

PRODUCTION

Software & Part Ecosystem

Software & Part Ecosystem

Evaluation Kit

Evaluation Kits 1

MAX9788EVKIT

Evaluation Kit for the MAX9788

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MAX9788EVKIT

Evaluation Kit for the MAX9788

Evaluation Kit for the MAX9788

Features and Benefits

  • 5V Single-Supply Operation
  • Fully Differential Output
  • Delivers Greater than 14VP-P into a Ceramic Speaker
  • Evaluates the MAX9788 in a 20-Bump UCSP (2mm x 2.5mm) Package
  • The MAX9788 IC Also Available in 28-Pin (4mm x 4mm) TQFN Package
  • Fully Assembled and Tested

Product Detail

The MAX9788 evaluation kit (EV kit) is a fully assembled and tested PCB that uses the MAX9788 Class G amplifier to drive a bridge-tied-load (BTL) ceramic speaker in portable audio applications. Designed to operate from a 2.7V to 5.5VDC power supply, the EV kit accepts a single-ended or differential input signal and provides a fully differential output capable of delivering greater than 14VP-P into a ceramic speaker.

Applications

  • Cellular Phones
  • Handheld Gaming Consoles
  • MP3 Players
  • Notebook Computers
  • Personal Media Players
  • Smartphones

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