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
http://onsemi.com
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 (Our company 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
Stresses exceeding Maximum Ratings may damage the device. Maximum Ratings are stress ratings only. Functional operation above the Recommended Operating
Conditions is not implied. Extended exposure to stresses above the Recommended Operating Conditions may affect device reliability.
Semiconductor Components Industries, LLC, 2013
May, 2013
60911 SY/81810 SY / 60110 SY 20100528-S00002/41610 SY / 52009 MS No.A1468-1/15