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BM28723MUV 데이터시트 PDF




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부품번호 BM28723MUV 기능
기능 17W+17W Full Digital Speaker Amplifier
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BM28723MUV 데이터시트, 핀배열, 회로
Datasheet
Middle Power Class-D Speaker Amplifier series
17W+17W
Full Digital Speaker Amplifier
with built-in DSP
BM28723MUV
General Description
BM28723MUV is a 17W+17W Class D stereo Speaker
Amplifier with built-in DSP designed for TVs specifically
for space-saving and low-power consumption.
BM28723MUV features BCD (Bipolar, CMOS, DMOS)
process technology to achieve high efficiency. In
addition, BM28723MUV is packaged in a compact back
surface heatsink type power package to attain low
power consumption, low heat generation without
external heatsink. The package Max output power is
only 17W+17W (When RL=8Ω) as compared to
20W+20W (When RL=8Ω) Max output power of
package with external heat-sink.
The product satisfies all needs for drastic downsizing,
low-profile structures and powerful high quality
playback of sound systems.
Key Specifications
Supply voltage range
10V to 24V
(VCCP1,VCCP2)
Speaker output power
17W+17W (Typ)
(VCCP1,VCCP2=18V,
RL=8Ω)
THD+N
Applications
0.08 [%] (Typ)
TVs (LCD, OLED)
Home Audio
Desktop PC
Amusement equipment
Electronic Music equipment, etc.
Typical Application Circuit
SP ch1
(Lch)
SP ch2
(Rch)
Features
Built-in DSP (Digital Sound Processor) for Audio
Signal Processing for TVs
12-Band/ch BQ, 3-Band DRC, Pre-Scaler, Channel
Mixer, Fine Master Volume, Hard Clipper, Level
Meter, etc.
Single Input System for Digital Audio Interface
(No Master Clock Required)
- I2S / LJ / RJ Format
- LRCLK: 32 / 44.1 / 48kHz
- BCLK: 32 / 48 / 64fS
- SDATA: 16 / 20 / 24 bit
Single Output System for Digital Audio Interface
- I2S Format
- SDATA: 16 / 20 / 24 bit
No Snubber Circuit Required (VCCP1,VCCP2≤22V)
because of Slew Rate Control
Output Feedback Circuit which prevents decrease
of sound quality caused by change of power supply
voltage, achieves low noise and low distortion, So
no large electrolytic-capacitors for Vcc bypass is
required.
Wide Range of Power Supply Input Voltage
The monaural output reduces the number of
external parts needed.
High Efficiency and Low Heat Dissipation allowing
Miniaturization, Slim Design, and also Power Saving
of the System
Eliminates pop-noise generated during the power
supply ON/OFF. High quality muting performance is
achieved using the soft-muting technology.
Built-in with Various Protection Functions for Highly
Reliability Design
- High Temperature Protection
- Under Voltage Protection
- Output Short Protection
- DC Voltage Protection for speaker
- Clock Stop Protection
Small Package, It reduces surface mount area
Package
VQFN032V5050
W(Typ) x D(Typ) x H(Max)
5.00mm x 5.00mm x 1.00mm
μ -con
Digital
Audio
Source
Figure 1. Typical application circuit
Product structureSilicon monolithic integrated circuit
.www.rohm.com
© 2016 ROHM Co., Ltd. All rights reserved.
TSZ2211114001
VQFN032V5050
This product has not designed protection against radioactive rays
1/79
TSZ02201-0C1C0E900290-1-2
01.Dec.2016 Rev.001




BM28723MUV pdf, 반도체, 판매, 대치품
BM28723MUV
I/O equivalence circuit(s) - continued
Pin
No.
Pin name
7 REG15
Pin voltage
1.5V
Pin explanation
Internal power supply pin for digital circuit
Connect capacitor.
(Note) The REG15 terminal of BM28723MUV should not be
used as an external supply and cannot support voltage load
from external source. Therefore, do not connect anything
except capacitor for stabilization.
8 DGND
10 DVDD
12 SDATAO
0V
3.3V
3.3V
GND pin for Digital I/O
Power supply pin for Digital I/O.
Connect capacitor.
Digital audio signal output pin
Output data of digital audio signal.
Select pull-up resistor after DVDD is applied.
13 ERRORX
3.3V
Error flag pin
Connect pull-up resistor.
High: Normal operation
Low: Error
(Note) An error flag is indicated when Output Short Protection,
DC Voltage Protection for speaker, and High Temperature
Protection are activated. The flag shows the IC condition
during operation.
Dont use for the protection except this product.
14 NC
28
15 BSP2N
16 OUT2N
VCCP2 to 0V
No-Connection Pin
Dont connect anything
Boot strap pin, CH2 negative
Connect a capacitor from pin to OUT2N.
PWM output pin, CH2 negative
17 VCCP2
18 GNDP2
VCCP2
0V
Connect pin to output LPF.
(Note) If this pin is shorted to GND, the IC may break.
(Note) When Reset ON or Mute ON, all output transistors are
OFF and output terminals are pulled down by 10kΩ (Typ).
Power supply pin for CH2
Power GND pin for CH2
19 BSP2P
20 OUT2P
VCCP2 to 0V
Boot strap pin, CH2 positive
Connect a capacitor from pin to OUT2P.
PWM output pin, CH2 positive
Connect pin to output LPF.
(Note) If this pin is shorted to GND, the IC may break.
(Note) When Reset ON or Mute ON, all output transistors are
OFF and output terminals are pulled down by 10kΩ (Typ).
The numerical value of I/O equivalence circuit is typical value, not guaranteed.
I/O equivalence circuit
10
7
8
10
12
8
500Ω
13
8
17
27
15, 19
16, 20
18
www.rohm.com
© 2016 ROHM Co., Ltd. All rights reserved.
TSZ22111 15 001
4/79
TSZ02201-0C1C0E900290-1-2
01.Dec.2016 Rev.001

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BM28723MUV 전자부품, 판매, 대치품
BM28723MUV
Thermal Resistance(Note 5)
Parameter
Symbol
Thermal Resistance (Typ)
1s(Note 7)
2s2p(Note 8)
Unit
VQFN032V5050
Junction to Ambient
θJA 138.9
39.1 °C/W
Junction to Top Characterization Parameter(Note 6)
ΨJT 11
5 °C/W
(Note 5)Based on JESD51-2A(Still-Air)
(Note 6) The thermal characterization parameter to report the difference between junction temperature and the temperature at the top center of the outside
surface of the component package.
(Note 7)Using a PCB board based on JESD51-3.
Layer Number of
Measurement Board
Material
Board Size
Single
FR-4
114.3mm x 76.2mm x 1.57mmt
Top
Copper Pattern
Footprints and Traces
Thickness
70μm
(Note 8)Using a PCB board based on JESD51-5, 7.
Layer Number of
Measurement Board
Material
4 Layers
FR-4
Board Size
114.3mm x 76.2mm x 1.6mmt
Top 2 Internal Layers
Copper Pattern
Thickness
Copper Pattern
Thickness
Footprints and Traces
70μm
74.2mm x 74.2mm
35μm
(Note 9) This thermal via connects with the copper pattern of all layers..
Thermal Via(Note 9)
Pitch
Diameter
1.20mm
Φ0.30mm
Bottom
Copper Pattern
74.2mm x 74.2mm
Thickness
70μm
Recommended Operating Ratings (Ta= -25°C to +85°C)
Item
Supply voltage
Symbol
VCCP1
VCCP2
VDVDD
Limit
10 to 24
10 to 24
3.0 to 3.6
6.4
Minimum load impedance
RL
4.8
3.6
(Note 1) The voltage that can be applied reference to GND (Pin 8, 18, 23).
(Note 2) Do not exceed Tj=150°C.
Unit
V
V
V
Ω
Ω
Ω
Pin 24
Pin 17
Conditions
Pin 10
21V<VCCP1,VCCP2≤24V
14V<VCCP1,VCCP2≤21V
VCCP1,VCCP2≤14V
(Note 1) (Note 2)
(Note 1) (Note 2)
(Note 1)
(Note 2)
(Note 2)
(Note 2)
www.rohm.com
© 2016 ROHM Co., Ltd. All rights reserved.
TSZ22111 15 001
7/79
TSZ02201-0C1C0E900290-1-2
01.Dec.2016 Rev.001

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부품번호상세설명 및 기능제조사
BM28723MUV

17W+17W Full Digital Speaker Amplifier

ROHM Semiconductor
ROHM Semiconductor

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