LV4991TT_08 SANYO [Sanyo Semicon Device], LV4991TT_08 Datasheet

LV4991TT_08

Manufacturer Part Number

LV4991TT_08

Description

For Portable Audio Equipment Monaural BTL Power Amplifier

Manufacturer

SANYO [Sanyo Semicon Device]

Datasheet

1.LV4991TT_08.pdf (11 pages)

Current page: 1 of 11
Download datasheet (197Kb)

Ordering number : ENA0739D

LV4991TT

Overview

Function and Feature

LV4991TT 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 LSI for speaker drive for the battery-driven portable

equipment, such as IC recorders, portable radios, etc. The LV4991TT is a MSOP8 (150mil) package, and The LV4991TH

of HMSOP8 (150mil) package is available.

• Monaural BTL power amplifier incorporated

• Operation at low voltage possible

• Standby function incorporated

• Second amplifier stop control function incorporated : Reducing the pop sound at startup, simple MUTE

• Overheat protection circuit incorporated

• Gain setting possible

• Output phase compensation capacitor not necessary

Standard output power = 450mW (V CC = 3.6V, R L = 8Ω, THD = 10%)

Output coupling capacitor not necessary because of differential output type

V CC = 2.7V or more

Standard current drain at standby = 0.1µA (V CC = 3.6V)

BTL voltage gain = 0 to 26dB

"standard application", intended for the use as general electronics equipment (home appliances, AV equipment,

Any and all SANYO Semiconductor Co.,Ltd. products described or contained herein are, with regard to

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

device, the customer should always evaluate and test devices mounted in the customer

equipment.

s products or equipment. To verify symptoms and states that cannot be evaluated in an independent

51408 MS 20080423-S00003 / 80807 MS / 62707 MS PC / 52307 MS IM / 41807 MS PC 20070322-S00004 No.A0739-1/11

Bi-CMOS IC

For Portable Audio Equipment

Monaural BTL Power Amplifier

s products or

Related parts for LV4991TT_08

LV4991TT_08 Summary of contents

Page 1

Ordering number : ENA0739D LV4991TT Overview LV4991TT 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 LSI for speaker drive for the ...

Page 2

Specifications Maximum Ratings 25°C Parameter Symbol Maximum supply voltage V CC max Allowable power dissipation Pd max Operating temperature Topr Storage temperature Tstg * Substrate mounted : with 58mm × 89mm × 1.6mm, glass epoxy substrate Operating ...

Page 3

Package Dimensions unit : mm (typ) 3245B 3 (0.53) 0.65 0.25 0.125 SANYO : MSOP8(150mil) Recommended substrate 1. Two sided substrate Size : 58mm×89mm×1.6mm Top Layer 2. One sided substrate Size : 58mm×89mm×1.6mm Top Layer LV4991TT Pd ...

Page 4

Block Diagram and Sample Application Circuit C3 R1 0.33µF 22kΩ 10kΩ STBY from CPU 2 VREF 3 C4 1µF CNT from CPU 4 R4 10kΩ Test Circuit 0.33µF 22kΩ 620Ω V STBY 1µF LV4991TT R2 ...

Page 5

Pin Description Pin voltage Pin No. Symbol 3. 1.81 2 STBY 3 VREF 1.81 4 CNT 5 OUT2 1.81 8 OUT1 6 GND LV4991TT Description Input pin Standby pin •Standby mode at ...

Page 6

Cautions for use 1. Input coupling capacitor (C3) The input coupling capacitor C3 and input resistor R1 make up the high-pass filter, attenuating the bass frequency. Therefore, the capacitance value must be selected with due consideration of the pass band. ...

Page 7

Bypass capacitor (C2) of the power supply block The bypass capacitor attached to the power pin (pin 7) must be arranged as near to this pin as possible. 6. Short-circuit between pins When power is applied with pins left ...

Page 8

THD -- P O 100 8Ω 6dB 5 fin = 1kHz 3 200<BW<80kHz 0 100 Output power, ...

Page 9

600 3. 6dB fin = 1kHz 500 200Hz<BW<80kHz 400 300 200 100 THD = Load resistance Ω I CCO ...

Page 10

I CCO -- Ta 4 3.5 3 2.5 2 1 Temperature ° 1200 8Ω 1100 VG = 6dB THD = 10% 1000 fin = ...

Page 11

Pop sound 1. Startup STBY→PWR OUT1-OUT2 : 10mV/div, AC SANYO Semiconductor Co.,Ltd. assumes no responsibility for equipment failures that result from using products at values that exceed, even momentarily, rated values (such as maximum ratings, operating condition ranges, or other ...

Related keywords

LV4991TT_08 datasheet
LV4991TT_08 data sheet
LV4991TT_08 pdf datasheet
LV4991TT_08 component
LV4991TT_08 part
LV4991TT_08 distributor
LV4991TT_08 RoHS
LV4991TT_08 datasheet download