LV4991M Datasheet, PDF (1/11 Pages) Sanyo Semicon Device – Monaural BTL Power Amplifier

Ordering number : ENA1492
LV4991M
Bi-CMOS IC
For Portable Audio Equipment
Monaural BTL Power Amplifier
Overview
LV4991M incorporates the power amplifier circuit operable at low voltage (2.7V or more) and has additionally the standby
function to reduce the current drain. This is the best IC for speaker drive for the audio of low-power range system and home
appliance. There are The LV4991TT: MSOP8 (150mil) and The LV4991TH: HMSOP8 (150mil) in the package change
goods.
Function and Feature
• Monaural BTL power amplifier incorporated
Standard output power 1 = 450mW (VCC = 3.6V, RL = 8Ω, THD = 10%)
Standard output power 2 = 1000mW (VCC = 5V, RL = 8Ω, THD = 10%)
Output coupling capacitor not necessary because of differential output type
• Operation at low voltage possible
VCC = 2.7V or more
• Standby function incorporated
Standard current drain at standby = 0.1µA (VCC = 3.6V)
• Second amplifier stop control function incorporated : Reducing the pop sound at startup, simple MUTE
• Overheat protection circuit incorporated
• Gain setting possible
BTL voltage gain = 0 to 26dB
• Output phase compensation capacitor not necessary
Any and all SANYO Semiconductor Co.,Ltd. products described or contained herein are, with regard to
"standard application", intended for the use as general electronics equipment (home appliances, AV equipment,
communication device, office equipment, industrial equipment etc.). The products mentioned herein shall not be
intended for use for any "special application" (medical equipment whose purpose is to sustain life, aerospace
instrument, nuclear control device, burning appliances, transportation machine, traffic signal system, safety
equipment etc.) that shall require extremely high level of reliability and can directly threaten human lives in case
of failure or malfunction of the product or may cause harm to human bodies, nor shall they grant any guarantee
thereof. If you should intend to use our products for applications outside the standard applications of our
customer who is considering such use and/or outside the scope of our intended standard applications, please
consult with us prior to the intended use. If there is no consultation or inquiry before the intended use, our
customer shall be solely responsible for the use.
Specifications of any and all SANYO Semiconductor Co.,Ltd. products described or contained herein stipulate
the performance, characteristics, and functions of the described products in the independent state, and are not
guarantees of the performance, characteristics, and functions of the described products as mounted in the
customer's products or equipment. To verify symptoms and states that cannot be evaluated in an independent
device, the customer should always evaluate and test devices mounted in the customer's products or
equipment.
61009 MS 20090522-S00005 No.A1492-1/11