LV49821VH Datasheet, PDF (1/15 Pages) Sanyo Semicon Device – For Portable Electronic Device Use 1.4W × 2ch BTL Power Amplifier

Ordering number : ENA1468D
LV49821VH
Bi-CMOS IC
For Portable Electronic Device Use
1.4W × 2ch BTL Power Amplifier
Overview
The LV49821VH incorporates a 2-channel power circuit amplifier capable of low-voltage operation (2.7V and up). It has a
function for switching the headphone driver and also has a standby function to reduce the current drain. It is a power
amplifier IC optimal for driving the speakers used in portable equipment and low power output equipment.
Use
• Portable DVD-player, Note PC, Portable TV, LCD monitor, Active speaker, and more.
Features
• 2-cannels BTL power amplifier built-in: Standard output power = 1.4W (VCC = 5V, RL = 8Ω, THD = 10%)
Output coupling capacitor is unnecessary because of differential output type.
• Standby function built-in: Standard standby current = 0.01μA (VCC = 5V)
• Second amplifier stop control function built-in: Headphone driver switch (for BTL/SE switch)
Audio mute (Only BTL power amplifier path)
• Supports beep signal input
• Thermal protection circuit built-in
• Operation at low voltage possible: VCC = 2.7V to 5.5V
• Gain setting possible: BTL voltage gain = 0 to 26dB
Specifications
Maximum Ratings at Ta = 25°C
Parameter
Symbol
Conditions
Maximum supply voltage
VCC max
Allowable power dissipation
Pd max
Mounted on a specified board.*
Maximum junction temperature Tj max
Operating temperature
Topr
Strage temperature
Tstg
* Specified board (SANYO Semiconductor Evaluation board): 70mm × 70mm × 1.6mm, glass epoxy both side.
Ratings
Unit
6
V
1.5
W
150
°C
-30 to +75
°C
-40 to +150
°C
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.
60911 SY/81810 SY / 60110 SY 20100528-S00002/41610 SY / 52009 MS No.A1468-1/15