Features • Pop & click circuitry eliminates noise during turn-on and turn-off transitions • Low current shutdown mode • Low quiescent current • Mono 15Vp-p BTL output, RL = 2µF+9.4, f = 1kHz, 1% THD+N • Over-current protection • Over-Voltage Protection • Unity-gain stable • External gain configuration capability • Including Band switch function • Leakage cut switch (SW-LEAK) • Soft-Start function • Space-saving micro SMD package (2mm x 2.5mm) Description The LM4962 is an audio power amplifier primarily designed for driving Ceramic Speaker for applications in Cell Phones, Smart Phones, PDA's and other portable applications. It is capable of driving 15Vpp (typ) BTL with less than 1% THD+N from a 3.2VDC power supply. The LM4962 features and low power consumption shutdown mode, an internal thermal shutdown protection mechanism, along with over current protection (OCP) and over voltage protection (OVP). Boomer audio power amplifiers were designed specifically to provide high quality output power with a minimal number of external components. The LM4962 does not require bootstrap capacitors, or snubber circuits. The LM4962 also features a Band-Switch function which allows the user to use one amplifier device for both receiver (earpiece) mode and ringer/loudspeaker mode. The LM4962 contains advanced pop & click circuitry that eliminates noises which would otherwise occur during turn-on and turn-off transitions. Additionally, the internal boost converter features a soft-start function. The LM4962 is unity-gain stable and can be configured by external gain-setting resistors. Key Specification Quiescent Power Supply Current (Boost Converter + Amplifier) 9mA (typ) Voltage Swing in BTL at 1% THD, f = 1kHz 15Vp-p (typ) Shutdown Current 0.1µA (typ) OVP 8.5V < VAMP < 9.5V Applications • Smart phones • Mobile Phones and Multimedia Terminals • PDA's, Internet Appliances, and Portable Gaming • Portable DVD • Digital still cameras/camcorders

MY BRIEFCASE                                       Click any "Briefcase" icon to add an item

Typical Application click for larger image	Block Diagram click for larger image
Typical Performance click for larger image

Datasheet

Title		Size	Date	Other Language
	LM4962 Boomer ® Audio Power Amplifier Series Ceramic Speaker Driver	842 Kbytes	6-Jan-06

Featured Application Notes

Title		Size	Date	Other Language
	AN-1441: Application Note 1441 LM4962 Evaluation Board	840 Kbytes	20-Apr-06
	AN-1440: Application Note 1440 LM4962 Stereo Ceramic Speaker Driver Application Note	760 Kbytes	20-Apr-06	中文
	AN-1611: Application Note 1611 LM48555 Evaluation Board	734 Kbytes	4-Apr-07

More Application Notes

Title		Size	Date	Other Language
	AN-1440: Application Note 1440 LM4962 Stereo Ceramic Speaker Driver Application Note	760 Kbytes	20-Apr-06	中文
	AN-1441: Application Note 1441 LM4962 Evaluation Board	840 Kbytes	20-Apr-06
	AN-1611: Application Note 1611 LM48555 Evaluation Board	734 Kbytes	4-Apr-07