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PDF NAU83P20 Data sheet ( Hoja de datos )
| Número de pieza | NAU83P20 | |
| Descripción | 20W Stereo Class-D Audio Amplifier | |
| Fabricantes | nuvoton | |
| Logotipo |  |
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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
1 page  
NAU83P20 20W Class D
32 N/C
- No Connect
33 VDDHV
Supply
Supply for Regulators
34 BST2B
Supply
Channel 2B High Side Bootstrap Supply
35 PVSS2
Supply
Channel 2 Power Ground
36 PVSS2
Supply
Channel 2 Power Ground
37 OUT2B PWM Output Channel 2B Pulse Width Modulation Signal Output
38 OUT2B PWM Output Channel 2B Pulse Width Modulation Signal Output
39 PVDD2
Supply
Channel 2 Power Supply
40 PVDD2
Supply
Channel 2 Power Supply
41 OUT2A PWM Output Channel 2A Pulse Width Modulation Signal Output
42 OUT2A PWM Output Channel 2A Pulse Width Modulation Signal Output
43 PVSS2
Supply
Channel 2 Power Ground
44 PVSS2
Supply
Channel 2 Power Ground
45 BST2A
Supply
Channel 2A High Side Bootstrap Supply
46 PWM1A
PWM Input
Channel 1A Pulse Width Modulation Signal Input
47 N/C
- No Connect
48 PWM1B
PWM Input
Channel 1B Pulse Width Modulation Signal Input
Table 1: NAU83P20 Pin description
NAU83P20YG Datasheet Rev1.8
Page 5 of 28
January 12, 2015
5 Page 
NAU83P20 20W Class D
10
1
Po=1W
0.1 Po=5W
Po=10W
0.01
0.001
20
200
2000
20000
THD+N vs Frequency, Vcc=18V, Rl= 8 BTL
10
1
f=20Hz
f=1kHz
0.1 f=10kHz
0.01
0.01
0.1 1 10 100
THD+N vs Output Power Vcc=8V, Rl= 8 BTL
NAU83P20YG Datasheet Rev1.8
Page 11 of 28
January 12, 2015
11 Page | ||
| Páginas | Total 28 Páginas | |
| PDF Descargar | [ Datasheet NAU83P20.PDF ] | |
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