SNAS491B
February 2010 – February 2018
LM48580
PRODUCTION DATA.
1
Features
2
Applications
3
Description
Device Images
Typical Application
4
Revision History
5
Pin Configuration and Functions
Pin Functions
6
Specifications
6.1
Absolute Maximum Ratings
6.2
ESD Ratings
6.3
Recommended Operating Conditions
6.4
Thermal Information
6.5
Electrical Characteristics: VDD = 3.6 V
6.6
Typical Performance Characteristics
7
Parameter Measurement Information
8
Detailed Description
8.1
Overview
8.2
Functional Block Diagram
8.3
Feature Description
8.3.1
Class H Operation
8.3.2
Properties of Piezoelectric Elements
8.3.3
Differential Amplifier Explanation
8.3.4
Thermal Shutdown
8.3.5
Gain Setting
8.4
Device Functional Modes
8.4.1
Shutdown Function
9
Application and Implementation
9.1
Application Information
9.2
Typical Application
9.2.1
Design Requirements
9.2.1.1
Proper Selection of External Components
9.2.1.1.1
Boost Converter Capacitor Selection
9.2.2
Detailed Design Procedure
9.2.2.1
Boost Converter Output Capacitor Selection
9.2.2.1.1
Inductor Selection
9.2.2.1.2
Diode Selection
9.2.2.2
Application Curves
10
Power Supply Recommendations
11
Layout
11.1
Layout Guidelines
11.2
Layout Example
12
Device and Documentation Support
12.1
Device Support
12.1.1
Development Support
12.1.1.1
Third-Party Products Disclaimer
12.2
Receiving Notification of Documentation Updates
12.3
Community Resources
12.4
Trademarks
12.5
Electrostatic Discharge Caution
12.6
Glossary
13
Mechanical, Packaging, and Orderable Information
Package Options
Mechanical Data (Package|Pins)
YZR|12
MXBG273
Thermal pad, mechanical data (Package|Pins)
Orderable Information
snas491b_oa
snas491b_pm
1
Features
Class H Driver
Integrated Boost Converter
Bridge-tied Load Output
Differential Input
Three Pin-Programmable Gains
Low Supply Current
Minimum External components
Micro-Power Shutdown
Thermal Overload Protection
Available in Space-Saving 12-bump DSBGA Package