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NAU83P20 PDF даташит

Спецификация NAU83P20 изготовлена ​​​​«nuvoton» и имеет функцию, называемую «20W Stereo Class-D Audio Amplifier».

Детали детали

Номер произв NAU83P20
Описание 20W Stereo Class-D Audio Amplifier
Производители nuvoton
логотип nuvoton логотип 

28 Pages
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NAU83P20 Даташит, Описание, Даташиты
Table of Contents
1 DESCRIPTION .................................................................................................................................................2
2 PINOUT .............................................................................................................................................................3
3 PIN DESCRIPTIONS.......................................................................................................................................4
4 ELECTRICAL CHARACTERISTICS .............................................................................................................6
4.1 AC Characteristics (Bridge Tied Load) .........................................................................................................6
4.2 AC Characteristics (Single Ended) ...............................................................................................................7
4.3 DC Characteristics .......................................................................................................................................8
CONDITIONS: PVDDX = 18V RLOAD = 8OHMS, F_PWM = 300KHZ .....................................................................8
CONDITIONS: PVDDX = 18V RLOAD = 8OHMS, F_PWM = 300KHZ .....................................................................9
4.4 Absolute Maximum Ratings..........................................................................................................................9
4.5 Recommended Operating Conditions ..........................................................................................................9
5 TYPICAL OPERATING CHARACTERISTICS...........................................................................................10
6 TYPICAL OPERATING CHARACTERISTICS...........................................................................................15
7 SPECIAL FEATURE DESCRIPTION..........................................................................................................19
7.1 Device Fault Detection ...............................................................................................................................19
7.1.1 Thermal Overload Detection ...............................................................................................................19
7.1.2 Short Circuit Detection ........................................................................................................................19
7.1.3 Supply under Voltage Detection..........................................................................................................19
7.2 Power up and Power down Control ............................................................................................................19
8 APPLICATION INFORMATION ...................................................................................................................20
Differential BTL Application with Modulation Filters............................................................................................20
Single Ended Application with Modulation Filters ...............................................................................................21
8.1 Component Selection .................................................................................................................................23
8.1.1 Bypass Capacitors ..............................................................................................................................23
8.1.2 Bootstrap Circuit (BSTxx)....................................................................................................................23
8.1.3 3V and 5V LDOs .................................................................................................................................23
8.2 Layout considerations ................................................................................................................................23
9 OPERATION...................................................................................................................................................23
9.1 Power Supplies ..........................................................................................................................................23
9.2 System Power Up and Power Down Sequence .........................................................................................23
9.2.1 Power Up ............................................................................................................................................23
9.2.2 Recommended Power up Sequence...................................................................................................24
9.2.3 Power Down........................................................................................................................................24
9.2.4 Recommended Power down Sequence ..............................................................................................24
9.3 Error Reporting...........................................................................................................................................24
9.4 Device Exception Handling System ...........................................................................................................25
9.4.1 Device Standby and Reset..................................................................................................................25
9.4.2 Thermal Information ............................................................................................................................25
9.4.3 Slew Rate Configuration .....................................................................................................................25
10 PACKAGE DIMENSIONS.............................................................................................................................26
11 ORDERING INFORMATION ........................................................................................................................27
NAU83P20YG Datasheet Rev1.8
Page 1 of 28
October 2014









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NAU83P20 Даташит, Описание, Даташиты
NAU83P20 Data sheet
NAU83P20
20W Stereo Class-D Audio Amplifier
1 Description
The NAU83P20 is single supply, 20W, high efficiency, Class-D audio power stage for driving Stereo
bridge-tied speakers. Operating from a single VDD 8V-24V supply, the design includes under-voltage,
over-current and over-temperature detection.
NAU83P20 is available in the QFN 48 package.
Key Features
Class D power 2x20W into 8Ohms (10% THD)
Typical power efficiency of 90%
105dB SNR
Slew control
3V LDO to power PWM controller
Supports multiple output configurations:
2-CH Bridged outputs (20Wx2)
4-CH single ended outputs (10Wx4)
2-CH single ended + 1-CH bridged (10Wx2
+ 20Wx1)
Fault Detection:
Over-Temperature
Under-Voltage
Over-Current
Applications
LCD TV’s
TV sound bars
Car Audio
Portable Media “Boom Boxes”
Home entertainment systems
STBYB
PWM1A
PWM1B
PWM2A
PWM2B
Under Voltage
Over Current
Over Temp
Fault
PWM Receiver
PWM Receiver
Current / Thermal
Detection
NAU83P20
VDD
Control
Control
Control
Control
VSS
Gate
Driver
Gate
Driver
Gate
Driver
Gate
Driver
5V LDO
3V LDO
Figure 1: NAU83P20 Block Diagram
emPowerAudio™









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NAU83P20 Даташит, Описание, Даташиты
2 Pinout
NAU83P20 20W Class D
FAULTB 1
TWARNB 2
ENSLEWB 3
STBYB 4
REGVSS 5
REG3V 6
PWM2A
PWM2B
OTEMPB
7
8
59
OCURRB 160
UVOLTB 11
RESET 12
NAU83P20
48-lead QFN
RoHS
3264 PVSS2
3253 PVSS2
3242 BST2B
3231 VDDHV
3224 NC
3213 REGVSS
3202 REG5V
2291 SDLATB
2280 NC
2179 BST1B
2168 PVSS1
2157 PVSS1
Part Number
NAU83P20YG
Dimension
7 x 7 mm
Package
48-QFN
Package
Material
Green
NAU83P20YG Datasheet Rev1.8
Page 3 of 28
January 12, 2015










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