PT2831-HT [PTC]
15W x 2, Class-D Audio Power Amplifier;
| 型号： | PT2831-HT |
| 厂家： | 
PRINCETON TECHNOLOGY CORP |
| 描述： | 15W x 2, Class-D Audio Power Amplifier |
| 文件： | 总5页 (文件大小：222K) |
| 中文： | 中文翻译 | 下载： | 下载PDF数据表文档文件 |
PT2831
15W x 2, Class-D Audio Power Amplifier
DESCRIPTION
FEATURES
The PT2831 is a Class-D power amplifier designs for
audio system; the maximum output power could up to
15W x 2. It is housing in a small, thermal enhanced
package, the best benefits of the PT2831 are high
efficiency and less external components. Fabricated
by high voltage BCD process to improve ESD and
electro stress handling capabilities.
Supports Multiple Output Configurations
(THD=10%)
-
-
-
2 x 5W into a 8Ω BTL at 9V
2 x 10W into a 8Ω BTL at 12V
2 x 15W into a 8Ω BTL at 15V
4Ω minimum load
Single power supply reduces component
count (Built-in 5V regulator)
Master/Slave Synchronization
4 voltage gains setting
APPLICATIONS
Sound Bar
Mini Audio System
Docking Speaker System
Consumer Audio Applications
Power ON de-pop enable
Integrated Self-Protection Circuits including
Under / Over supply voltage, short circuit and
over temperature protection
Wide Voltage Range: 4.5V~16V
Small size 28 Pins HT-SSOP package with
thermal pad
BLOCK DIAGRAM
BYPASS
VREG
VDDP
SVCC
HVSS
VREG
HVSS
Regulator
Regulator
SGND
PVCC
SVC
VREG
C
VREG
Driver-H
VCMfb
HVS
S
CVCM
PWM
Logic
Level
Shift
OUTN
VDDP
Driver-L
INN
INP
PGND
PVCC
VREG
Driver-H
GAIN0
Gain
Adj
HVS
S
Level
Shift
OUTP
PGND
PWM
Logic
GAIN1
VDDP
SYNCLK
Driver-L
OSC
ROSC
Protection &
Function
OE
STBY
MUTE
*Shows the block diagram of one of the two identical channels
Tel: 886-2-66296288‧Fax: 886-2-29174598‧http://www.princeton.com.tw‧2F, No. 233-1, Baociao Rd., Sindian Dist., New Taipei City 23145, Taiwan
PT2831
APPLICATION CIRCUIT DIAGRAM
C8
SVCC
1
28
27
26
25
24
23
22
21
20
19
18
17
16
15
BYPASS
C2
C1
C21
C12
HVSS
2
3
4
5
INNB
INPB
SUB_GND
VREG
VREG
OUTPB
PGNDB
PVCCB
OUTNB
GAIN1
GAIN0
CVCM
OE
L1
C17
C18
R3
C10
C15
C13
6
7
8
9
C24
C25
L2
L3
VCC
GND
PT2831
C23
OUTNA
SGND
VREG
SYNCLK
ROSC
C7
C19
C20
PVCCA
PGNDA
R4
C11
C16
C14
10
11
12
13
14
C5
OUTPA
L4
R1
C4
PGND
VDDP
STBY
INNA
VREG
INPA
C3
R5
C9
SVCC
SVCC
MUTE
R6
R2
C22
C6
LC Filter components
R_load
4Ω
L1, L2, L3, L4
C15, C16
470nF
15uH
6Ω
22uH
220nF
8Ω
33uH
220nF
PARTS RECOMMENDATION
Capacitor
Resistor
C1, C2, C3, C4---0.47µF
R1---39KΩ
R2, R6---33KΩ
R3, R4, R5---22Ω
C5, C10, C11, C12, C17~C21---0.1µF
C6, C8, C22 ---2.2µF
C7, C9,---1µF
C13, C14---330pF
C23---1000µF
C25---0.22µF
C24—4.7µF
For better THD+N performance the X7R material SMD capacitor is recommended.
V1.5
2
September, 2018
PT2831
ORDER INFORMATION
Part Number
Package Type
Top Code
PT2831-HT
28 pins, HTSSOP, 173mil
PT2831-HT
PIN CONFIGURATION
SVCC
1
28
27
26
25
24
23
22
21
20
19
18
17
16
15
BYPASS
HVSS
2
INNB
INPB
SUB_GND
3
4
OUTPB
PGNDB
PVCCB
OUTNB
GAIN1
GAIN0
CVCM
OE
5
6
7
PT2831
8
OUTNA
SGND
VREG
SYNCLK
ROSC
INNA
9
PVCCA
PGNDA
10
11
12
13
14
OUTPA
PGND
VDDP
STBY
INPA
MUTE
V1.5
3
September, 2018
PT2831
PIN DESCRIPTION
Pin Name
SVCC
I/O
Description
Pin No.
1
Power Signal power supply
HVSS
O
Regulator output referred to power supply
2
SUB_GND
OUTPB
PGNDB
PVCCB
OUTNB
OUTNA
PVCCA
PGNDA
OUTPA
PGND
VDDP
Power Connect to the frame
3
4
5
6
7
8
9
O
Positive PWM for right channel
Power Power stage ground for right channel
Power Power supply for right channel
O
O
Negative PWM output for right channel
Negative PWM output for left channel
Power Power supply for left channel
Power Power stage ground for left channel
10
11
12
13
14
15
16
17
18
19
20
21
22
23
24
25
26
27
28
O
Positive PWM for left channel
Power Power stage ground
I
I
Regulator output referred to ground for power stage
Standby mode control
STBY
MUTE
INPA
I
Mute mode control
I
I
Positive differential input of left channel
Negative differential input of left channel
Master Oscillator frequency-setting pin
Clock in/out for external oscillator
Regulator output referred to ground for power stage
INNA
ROSC
SYNCLK
VREG
SGND
OE
CVCM
GAIN0
GAIN1
INPB
O
I/O
O
Power Signal ground
O
O
I
Open-drain diagnostic output
Supply voltage rejection
Gain setting input 1
I
Gain setting input 2
I
I
O
Positive differential input of right channel
Negative differential input of right channel
Half VREG referred to ground
INNB
BYPASS
V1.5
4
September, 2018
PT2831
IMPORTANT NOTICE
Princeton Technology Corporation (PTC) reserves the right to make corrections, modifications, enhancements,
improvements, and other changes to its products and to discontinue any product without notice at any time.
PTC cannot assume responsibility for use of any circuitry other than circuitry entirely embodied in a PTC product. No
circuit patent licenses are implied.
Princeton Technology Corp.
2F, 233-1, Baociao Road,
Sindian Dist., New Taipei City 23145, Taiwan
Tel: 886-2-66296288
Fax: 886-2-29174598
http://www.princeton.com.tw
V1.5
15
September, 2018
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