LA4628_08 Datasheet, PDF (1/8 Pages) Sanyo Semicon Device – For General Audio 20W 2-Channel BTL Power Amplifier

Ordering number : EN6632A
LA4628
Monolithic Linear IC
For General Audio
20W 2-Channel BTL Power Amplifier
Overview
The LA4628 is a 2-channel general-purpose BTL audio power amplifier provided in a miniature package. It was designed
for the best possible audio quality and features an extended low band roll-off frequency provided by a newly-developed NF
circuit that does not require an external capacitor. Furthermore, crosstalk, which can cause muddiness in the audio output,
has been significantly reduced by both circuit and wiring pattern improvements. Thus this amplifier can provide powerful
lows and clear highs.
Note that this device is pin compatible with the 13.5W×2-channel LA4625, and allows end products differentiated by their
power rating to share the same printed circuit board.
Features
• Total output : 20W+20W (at VCC = 13.5V, RL = 4Ω, THD = 10%)
• High-fidelity design (fL < 10Hz, fH = 130kHz)
• Extremely low impulse noise levels
• An arbitrary amplifier startup time can be set up with external components.
• Full complement of built-in protection circuits (includes circuits that protect against shorting to VCC, shorting to ground,
load shorting, overvoltages and excessive temperatures)
Specifications
Maximum Ratings at Ta = 25°C
Parameter
Symbol
Maximum supply voltage
Maximum output current
Allowable power dissipation
VCC max
IO peak
Pd max
Operating temperature
Topr
Storage temperature
Tstg
Conditions
No signal
Per channel
With an arbitrarily large heat sink
Ratings
Unit
24
V
4
A
32.5
W
-20 to +85
°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.
O0808 MS JK/92900RM(OT) No.6632-1/8