BD5427EFS
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BD5427EFS - BD5427EFS
Middle Power Class-D Speaker Amplifiers
Analog Input Output Class-D Speaker Amplifier
BD5427EFS
No.10075EBT06
Description BD5427EFS stereo class-D power amplifier developed space-saving heat-generation applications such low-profile sets. employs state-of-the-art Bipolar, CMOS, DMOS (BCD) process technology that eliminates turn-on resistance output power stage internal loss line resistances ultimate level. With this technology, achieved high efficiency output with load). IC,in addition, employs compact back-surface heat radiation type power package achieve power consumption heat generation eliminates necessity installing external radiator, total output 14W. This product satisfies both needs drastic downsizing, low-profile structures powerful, high-quality playback sound system. Features high efficiency output with load), which highest grade industry heat-generation. Driving lowest rating load allowed. noise upon turning power on/off power interruption been reduced. High-quality audio muting implemented soft-switching technology. High-reliability design provided with built-in protection circuits against high temperatures, against shorting shorting, against reduced-voltage, against applying voltage speaker. master/slave function allowing synchronization multiple devices reduces beat noises. Adjustment internal sampling clock frequencies (250kHz 400kHz) allows easy protective measures against unwanted radio emission radio band. compact back-surface heat radiation type power package employed. HTSSOP-A44(5mm 7.5mm 1.0mm, pitch 0.8mm Absolute Maximum Ratings circuit must designed evaluated exceed absolute maximum rating cases even momentarily, prevent reduction functional performances thermal destruction semiconductor product secure useful life reliability. following values assume =25. latest values, refer delivery specifications. Parameter Supply voltage Power dissipation Input voltage signal Input voltage control Input voltage clock Operating temperature range Storage temperature range Maximum junction temperature Symbol VCONT VOSC Topr Tstg Tjmax Ratings -0.2 +7.2 -0.2 Vcc+0.2 -0.2 +7.2 +150 +150 Unit Conditions (Note (Note (Note (Note (Note (Note
(Note voltage that applied with reference (pins (Note Tjmax=150must exceeded. (Note 70mm 70mm 1.6mm One-sided glass epoxy board (Back copper foil installed. used under Ta=25or higher, reduce 16mW increase every board provided with thermal via. (Note 70mm 70mm 1.6mm Both-sided glass epoxy board (Back copper foil 100%) installed. used under Ta=25or higher, reduce 36mW increase every board provided with thermal via.
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1/15
2010.05 Rev.B
BD5427EFS
Operating Conditions following values assume =25. Check latest values delivery specifications. Parameter Supply voltage Load resistance
(Note should exceeded.
Technical Note
Symbol
Ratings +16.5
Unit
Conditions (Note
Electrical Characteristics Except otherwise specified 12V, 1kHz, 8,MUTEX="H", MS="L" latest values, refer delivery specifications. Parameter Whole circuit Circuit current (Sampling mode) Circuit current (Muting mode) Control circuit level input voltage level input voltage Audio circuit Voltage gain Maximum output power (Note Total harmonic distortion (Note Crosstalk Output noise voltage (Sampling mode) Residual noise voltage (Muting mode) Internal sampling clock frequency VNOM FOSC µVrms µVrms THD+N BW=20Hz 20kHz IHF-A IHF-A IHF-A, MUTEX master operation) MUTEX, MUTEX, ICC1 ICC2 With signal MUTEX Symbol Limits Unit Conditions
(Note rated values items above indicate average performances device, which largely depend circuit layouts, components, power supplies. reference values those applicable device components directly installed board specified
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2/15
2010.05 Rev.B
BD5427EFS
Electrical characteristic curves (Reference data) Under Stereo Operation(RL=8)
Technical Note
THD+N 0.01 0.001
1kHz 100Hz Vcc=12V RL=8 BW=2020kHz
THD+N
6kHz
0.01
Vcc=12V RL=8 Po=1W BW=2020kHz
0.01
1000
10000
100000
OUTPUT POWER Fig. THD+N Output power
FREQUENCY (Hz)
Fig. THD+N Frequency
VOLTAGE GAIN (dB) 1000 FREQUENCY (Hz) 10000 100000 CROSSTALK (dB) Vcc=12V RL=8 Po=1W L=33 C=0.47 C=0.1
-100 1000 FREQUENCY (Hz) 10000 100000 Vcc=12V RL=8 Po=1W BW=2020kHz
Fig. Voltage gain Frequency
Fig. Crosstalk Frequency
CROSSTALK (dB) -100 0.001
Vcc=12V RL=8 fin=1kHz BW=2020kHz
0.01
OUTPUT POWER
RL=8 fin=1kHz THD=10%
OUTPUT POWER
Fig.
Crosstalk Output power
Fig.
Output power Power supply voltage
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3/15
2010.05 Rev.B
BD5427EFS
Electrical characteristic curves (Reference data) Continued
Technical Note
Vcc=10V RL=8 fin=1kHz
EFFICIENCY
EFFICIENCY
Vcc=12V RL=8 fin=1kHz
OUTPUT POWER (W/ch)
Fig. Efficiency Output power
OUTPUT POWER (W/ch)
Fig. Efficiency Output power
EFFICIENCY
Vcc=10V
Vcc=12V
Vcc=16.5V
Vcc=16.5V RL=8 fin=1kHz
RL=8 fin=1kHz
OUTPUT POWER (W/ch)
Fig. Efficiency Output power
TOTAL OUTPUT POWER
Fig. Current consumption Output power
RL=8 Without signal
NOISE (dBV) -100 -120 -140
(mA)
Vcc=12V RL=8 Without signal BW=2020kHz
Sampling Mute
1000
10000
100000
FREQUENCY (Hz)
Fig. Output Noise Voltage
Fig. Current consumption Power supply voltage
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4/15
2010.05 Rev.B
BD5427EFS
Electrical characteristic curves (Reference data) Continued
Technical Note
MUTEX
V/div
Vcc=12V Po=500
MUTEX
V/div
Vcc=12V Po=500
V/div
V/div Speaker output
Speaker output
Fig. Wave form when Releasing Soft-mute
Fig. Wave form when Activating Soft-mute
VCCA VHOLD 5V/div
VCCA Vcc=12V Po=500mW fin=3kHz VHOLD 5V/div Vcc=12V Po=500mW fin=3kHz
5V/div
5V/div
Speaker output
2V/div
Speaker output 2msec/div
2V/div
20msec/div
Fig. Wave form Instantaneous Power Interruption (20msec div)
Fig. Wave form Instantaneous Power Interruption (2msec div)
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5/15
2010.05 Rev.B
BD5427EFS
Electrical characteristic curves (Reference data) Under Stereo Operation(RL=6)
RL=6 fin=1kHz THD=10%
Technical Note
OUTPUT POWER
Fig. Output power Power supply voltage
Vcc=10V RL=6 fin=1kHz
EFFICIENCY
EFFICIENCY
Vcc=12V RL=6 fin=1kHz
OUTPUT POWER (W/ch)
Fig. Efficiency Output power
OUTPUT POWER (W/ch)
Fig. Efficiency Output power
Vcc=12V
OUTPUT POWER (W/ch)
EFFICIENCY
Vcc=16.5V
Vcc=10V RL=6 fin=1kHz
Vcc=16.5V RL=6 fin=1kHz
TOTAL OUTPUT POWER
Fig. Current consumption Output power
Fig. Efficiency Output power
Dotted lines graphs indicate continuous output power obtained musical signal source installing additional heat sinks.
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6/15
2010.05 Rev.B
BD5427EFS
Assignment
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0.95
N.C. N.C. N.C. N.C. ARNING ERROR RNING ERROR Control N.C. N.C. N.C. N.C. Protections Logic Under tage Protection Temperature Protection Power-off Detector Ramp Generator Output Short Protection Output tage Protection Clock Control BSP2P CCP2P CCP2P OUT2P OUT2P GNDP2 GNDP2 OUT2N OUT2N CCP2N CCP2N BSP2N ROSC N.C. N.C. N.C. N.C. BSP1P CCP1P CCP1P GNDP1 GNDP1 OUT1N OUT1N CCP1N CCP1N BSP1N
0.75
0.85 0.05
0.08 0.05
0.85
Fig.
Outer Dimensions Inscriptions
2010 ROHM Co., Ltd. rights reserved.
1PIN MARK
Fig.
18.5
(MAX 18.85 include BURR)
(6.0)
BD5427EFS
View
Assignment Diagram
Outer Dimensions Inscriptions HTSSOP-A44 Package
7/15
TYPE
(5.0)
(Unit:
2010.05 Rev.B
Technical Note
BD5427EFS
Explanation Functions (Provided voltages typical values.) Symbol voltage description
Technical Note
Internal equalizing circuit
3.5V
Analog signal input Analog signal input Input audio signal capacitor.
1/44
BSP1P
positive bootstrap Connect capacitor
VCCP1P
positive power system power supply
OUT1P
positive signal output Connect with output LPF.
GNDP1
power system
OUT1N
negative signal output Connect with output
VCCP1N
negative power system power supply
BSP1N
negative bootstrap Connect capacitor.
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8/15
2010.05 Rev.B
BD5427EFS
Explanation Functions continued Symbol voltage description
Technical Note
Internal equalizing circuit
Warning output WARNING notify operation warning. Under warning Normal operation Connect resister.
Error output ERROR notifying operation errors. Error Normal operation Connect resister.
Audio mute control MUTEX
120k
N.C.
N.C. Nothing connected with internal circuit.
Sampling clock signal input/output When using more sampling clocks, connect capacitor.
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9/15
2010.05 Rev.B
Mute Mute
BD5427EFS
Explanation Functions continued Symbol voltage description
Technical Note
Internal equalizing circuit
Master/Slave switching Switching master/slave functions sampling clock signal. Slave operation Master operation
120k
Internal sampling clock frequency setting ROSC 5.6V Usually used open. adjust internal sampling clock frequency, connect resister.
Audio muting constant setting Connect capacitor.
Instantaneous power interruption detecting voltage setting VHOLD Connect capacitor. adjust detecting voltage, connect resister.
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10/15
390k
180k
2010.05 Rev.B
BD5427EFS
Explanation Functions continued Symbol BSP2N voltage description negative bootstrap Connect capacitor.
Technical Note
Internal equalizing circuit
29,30
VCCP2N
negative power system power supply negative signal output
31,32
OUT2N
Connect output LPF.
GNDP2
power system positive signal output
33,34
OUT2P
Connect output LPF.
37,38
VCCP2P
positive power system power supply
35,36
positive bootstrap BSP2P Connect capacitor.
33,34
VCCA
Analog system power
FILP
Vcc+35
system bias
Connect capacitor.
Analog signal system bias FILA 3.5V Connect capacitor.
GNDA
Analog system power supply
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11/15
2010.05 Rev.B
BD5427EFS
Application Circuit Diagram
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N.C. N.C. N.C. N.C. INPUT ch-2
Vcc=10V 16.5V
INPU ch-1
GNDA
N.C.
N.C.
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N.C. N.C.
Fig.
Circuit Diagram Stereo Operation with Load
12/15
GNDP
ARNING N.C. N.C. N.C. N.C. Control ERROR
ERROR TPUT
ARNING Protections Logi Under tage Protection High Temperature Protection Power-off Detector Soft Ramp Generator
GNDD
OPEN Clock Control STER
Output Short Protection Output tage Protection
2010.05 Rev.B
Technical Note
BD5427EFS
able List Stereo Operation with Load
Item Part Number Vendor Configuration inch Value Rated voltage Tolerance Temperature characteristics ±10% ±10% ±10% ±10% ±10% ±10% ±10% ±25% ±200ppm/ Quantity
Technical Note
Reference
BD5427EFS
ROHM
HTSSOP-A44 2012 1608 2012 3225 3225 2012 1608 2012 2012 6666 1005 0805 0603 0805 1210 1210 0805 0603 0805 0805 2626 0402
0.68µF 0.1µF 0.1µF 2.2µF 0.47µF 3.3µF 0.1µF 10µF 10µF 100k
±10% ±10% ±10% ±20% ±20% ±10% ±10% ±10% ±10% ±20%
C17, C28, C15, C29, C37, C13, C31, C10, C23, C38, R18,
GRM219B31E684KA88D MURATA GRM188R11H104KA93 GRM21BB11H104KA01 25ST225M3216 50ST474M3225 GRM21BB31E335KA75 GRM188B11E104KA GRM21BB11C105KA GRM21BB31C106KE15 25SVPD10M MCR01MZPF1003 MURATA MURATA Rubycon Rubycon MURATA MURATA MURATA MURATA SANYO ROHM
Item
Part Number
Vendor
Configuration
Value
Tolerance
Resistance 52mmax.
Rated Current 2.0A max.
Quantity
Reference
7G09B-330M
SAGAMI
±20%
L13, L31,
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13/15
2010.05 Rev.B
BD5427EFS
Technical Note
Notes Usage About absolute maximum ratings applied voltage operating temperature exceeds absolute maximum rating, cause destruction device. result destruction, whether short mode open mode, predictable. Therefore, provide physical safety measure such fuse, against special mode that violate conditions absolute maximum ratings. About power supply line return current regenerated back output coil happens, take steps such putting capacitor between power supply electric pathway regenerated current. sure that there problem with each property such emptied capacity lower temperature regarding electrolytic capacitor decide capacity value. connected power supply does have sufficient current absorption capacity, regenerative current will cause voltage power supply line rise, which combined with product peripheral circuitry exceed absolute maximum ratings. recommended implement physical safety measure such insertion voltage clamp diode between power supply pins. Potential (11, pins) Potential terminal must lowest under operating conditions. About thermal design Perform thermal design with sufficient margins, consideration maximum power dissipation under actual operating conditions. This product exposed frame back package, assumed that frame used with measures improve efficiency heat dissipation. addition front surface board, provide heat dissipation pattern widely possible back also. class-D power amplifier heat dissipation efficiency higher than that conventional analog power amplifier generates less heat. However, extra attention must paid thermal design that power dissipation Pdiss should exceed maximum power dissipation Tjmax Tjmax: Maximum temperature junction 150[] Maximum power dissipation Operating ambient temperature Package thermal resistance [/W] Output power Pdiss Power dissipation Efficiency About operations strong electric field Note that device malfunction strong electric field. Thermal shutdown (TSD) circuit This product provided with built-in thermal shutdown circuit. When thermal shutdown circuit operates, output transistors placed under open status. thermal shutdown circuit primarily intended shut down avoiding thermal runaway under abnormal conditions with chip temperature exceeding Tjmax 150, intended protect secure electrical appliance. Accordingly, this circuit function protect customer's electrical appliance. About shorting between pins installation failure careful about direction displacement when installing onto board. Faulty installation destroy when device energized. addition, foreign matter getting between pins, pins power supply, pins cause shorting destruction LSI. About power supply startup shutdown When starting power supply, sure place MUTEX (pin level. When shutting down power supply also, sure place level. Those processes reduce noises generated upon turning power supply. addition, power supply pins must started shut down same time. About WARNING output (pin ERROR output (pin WARNING flag output from WARNING output upon operation high-temperature protection function under-voltage protection function. ERROR flag output from ERROR output upon operation VCC/GND shorting protection function speaker voltage applying protection function. These flags function which condition this product shown which aimed protection except this product prohibition. About N.C. pins (pins N.C. (Non connection) pins connected with internal circuit. Leave pins open connect them GND.
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14/15
2010.05 Rev.B
BD5427EFS
Ordering part number
Technical Note
Part
Part
Package EFS:HTSSOP-44
Packaging forming specification Embossed tape reel
HTSSOP-A44
18.5±0.1 (MAX 18.85 include BURR) (6.0)
<Tape Reel information>
Tape Quantity
1.0±0.2
Embossed carrier tape (with pack) 1500pcs
direction 1pin product upper left when hold
9.5±0.2
7.5±0.1
0.5±0.15
Direction feed
(5.0)
reel left hand pull tape right hand
0.85
1PIN MARK
+0.05 0.17 -0.03
1.0MAX
0.08
0.85±0.05
0.08±0.05
+0.05 0.37 -0.04
0.08
1pin (Unit Reel
Direction feed
Order quantity needs multiple minimum quantity.
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15/15
2010.05 Rev.B
Notice
Notes
copying reproduction this document, part whole, permitted without consent ROHM Co.,Ltd. content specified herein subject change improvement without notice. content specified herein purpose introducing ROHM's products (hereinafter "Products"). wish such Product, please sure refer specifications, which obtained from ROHM upon request. Examples application circuits, circuit constants other information contained herein illustrate standard usage operations Products. peripheral conditions must taken into account when designing circuits mass production. Great care taken ensuring accuracy information specified this document. However, should incur damage arising from inaccuracy misprint such information, ROHM shall bear responsibility such damage. technical information specified herein intended only show typical functions examples application circuits Products. ROHM does grant you, explicitly implicitly, license exercise intellectual property other rights held ROHM other parties. ROHM shall bear responsibility whatsoever dispute arising from such technical information. Products specified this document intended used with general-use electronic equipment devices (such audio visual equipment, office-automation equipment, communication devices, electronic appliances amusement devices). Products specified this document designed radiation tolerant. While ROHM always makes efforts enhance quality reliability Products, Product fail malfunction variety reasons. Please sure implement your equipment using Products safety measures guard against possibility physical injury, fire other damage caused event failure Product, such derating, redundancy, fire control fail-safe designs. ROHM shall bear responsibility whatsoever your Product outside prescribed scope accordance with instruction manual. Products designed manufactured used with equipment, device system which requires extremely high level reliability failure malfunction which result direct threat human life create risk human injury (such medical instrument, transportation equipment, aerospace machinery, nuclear-reactor controller, fuelcontroller other safety device). ROHM shall bear responsibility Products above special purposes. Product intended used such special purpose, please contact ROHM sales representative before purchasing. intend export ship overseas Product technology specified herein that controlled under Foreign Exchange Foreign Trade Law, will required obtain license permit under Law.
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R1010A
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