HT8310 Marking, HT8310SPR datasheet(2/4 Pages) HEROIC

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HT8310

Audio Amplifier Integrated with Charge Pump

-2-

9/2018 – V0.5

5.2W Anti-Clipping Mono Class D/AB Audio Amplifier with

Adaptive Charge Pump Regulator

 FEATURE

・

4 modes of Anti-Clipping Function (ACF)

・

Adaptive Charge Pump Regulator

・

Maximum Voltage Gain: 28dB

・

Output Power

5.2W (VBAT=4.2V, RL=4Ω, THD+N=10%)

4.0W (VBAT=3.7V, RL=4Ω, THD+N=10%)

3.0W (VBAT=3.3V, RL=4Ω, THD+N=10%)

・

Efficiency

84% (VBAT = 3.7V, RL = 4 Ω, Po = 0.4W)

75% (VBAT = 3.7V, RL = 4 Ω, Po = 2.0W)

・

Power Supply

-Input VBAT：2.7V to 5.5V

-Output CPOUT：6.4V

・

Quiescent Current: 3mA

・

Shutdown Current: <1uA

・

Class AB / Class D selectable

・

Filter-less Modulation, Eliminating Output Filter

・

Over Current Protection, Thermal Protection,

Low voltage malfunction prevention function

included

・

Pb-Free Packages , SOP16L-PP, QFN16L-PP

 APPLICATIONS

・

Smart Speakers

・

Wireless Speakers

・

Portable Audio Devices

・

Smart Phones

 GENERAL DESCRIPTION

HT8310 is a Class D audio amplifier which can

deliver continuous 5.2W output power into a 4Ω

speaker with 4.2V battery supply when THD+N =

10%. The class D audio amplifier’s power supply is

adaptively boosted by the integrated charge pump

regulator which only works while the output power

is big enough. This will significantly extend the

playing time in battery supply applications.

HT8310 features Anti-Clipping Function (ACF)

which detects output signal clip due to the over

input signal and suppresses the output signal clip

automatically. Also, it can adapt the output clip

caused by power supply voltage down. It can

significantly improve the sound quality, creating a

very comfortable musical enjoyment, and to protect

the speakers from overload damage. It provides 4

different ACF modes and ACF OFF mode to adjust

different applications.

Class AB amplifier mode is also available for

HT8310. Once the EMI Interference from class D

and Boost Converter becomes an annoying

problem, HT8310 can be changed into Class AB

mode.

HT8310 has a filter-less modulation circuit

which directly drives speakers while realizes low

distortion and low noise characteristics. Thanks to

filter-less, circuit design with fewer external parts

can be made in portable applications.

HT8310 has an internal gain of 28dB and an

independent

Shutdown

function

which

can

minimize the power consumption. As for protection

function, over current protection function for

speaker

output

terminals,

over

temperature

protection function, and low supply voltage

malfunction preventing function are also prepared.

 TYPICAL APPLICATION

VBAT

CFLY 4.7uF

1uF

10uF

220uF

PVBAT

AVBAT

IN-

CIN

OUT+

OUT-

IN+

RIN

PVDD

CPOUT

1uF

10uF

220uF

1uF

10R

0-GND

CGND AGND

PGND

ACF

ACF = AVBAT, ACF disabled

Otherwise, ACF enabled

CTRL

CTRL = L, Shutdown

CTRL = 1.1-1.5V, Class AB

CTRL > 1.8V, Class D

BYPASS

1uF

HT8310 Marking, HT8310SPR Datasheet(PDF) 2 Page - Jiaxing Heroic Technology Co.,Ltd.

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