BD5426EFS_10 [ROHM]
Analog Input / BTL Output Class-D Speaker Amplifier; 模拟量输入/输出BTL D类扬声器放大器型号: | BD5426EFS_10 |
厂家: | ROHM |
描述: | Analog Input / BTL Output Class-D Speaker Amplifier |
文件: | 总17页 (文件大小:517K) |
中文: | 中文翻译 | 下载: | 下载PDF数据表文档文件 |
Middle Power Class-D Speaker Amplifiers
Analog Input / BTL Output
Class-D Speaker Amplifier
BD5426EFS
No.10075EBT05
●Description
BD5426EFS is a 10W + 10W stereo class-D power amplifier IC, developed for space-saving and low heat-generation
applications such as low-profile TV sets. The IC employs state-of-the-art Bipolar, CMOS, and DMOS (BCD) process
technology that eliminates turn-on resistance in the output power stage and internal loss due to line resistances up to an
ultimate level. With this technology, the IC has achieved high efficiency of 87% (9W + 9W output with 8Ω load). The IC, in
addition, employs a compact back-surface heat radiation type power package to achieve low power consumption and low
heat generation and eliminates necessity of installing an external radiator, up to a total output of 20W. This product satisfies
both needs for drastic downsizing, low-profile structures and powerful, high-quality playback of the sound system.
●Features
1) A high efficiency of 87% (9W + 9W output with 8Ω load), which is the highest grade in the industry and low heat-generation.
2) An output of 10W + 10W (13V, with 8Ω load) is allowed without an external heat radiator.
3) Driving a lowest rating load of 6Ω is allowed.
4) Pop noise upon turning power on/off and power interruption has been reduced.
5) High-quality audio muting is implemented by soft-switching technology.
6) An output power limiter function limits excessive output to speakers.
7) High-reliability design provided with built-in protection circuits against high temperatures, against VCC shorting and
GND shorting, against reduced-voltage, and against applying DC voltage to speaker.
8) A master/slave function allowing synchronization of multiple devices reduces beat noises.
9) Adjustment of internal PWM sampling clock frequencies (250kHz to 400kHz) allows easy protective measures
against unwanted radio emission to AM radio band.
10) A compact back-surface heat radiation type power package is employed.
HTSSOP-A44(5mm × 7.5mm × 1.0mm, pitch 0.8mm )
●Absolute maximum ratings
A circuit must be designed and evaluated not to exceed absolute maximum rating in any cases and even momentarily, to prevent
reduction in functional performances and thermal destruction of a semiconductor product and secure useful life and reliability.
The following values assume Ta =25℃. For latest values, refer to delivery specifications.
Parameter
Supply voltage
Symbol
VCC
Ratings
+20
Unit
V
Conditions
Pin 7, 8, 15, 16, 29, 30, 37, 38, 40
(Note 1, 2)
2.0
4.5
W
W
(Note 3)
(Note 4)
Power dissipation
Pd
Input voltage for signal pin
Input voltage for control pin
Input voltage for clock pin
Operating temperature range
Storage temperature range
Maximum junction temperature
VIN
VCONT
VOSC
Topr
-0.2 ~ +7.2
-0.2 ~ Vcc+0.2
-0.2 ~ +7.2
-40 ~ +85
V
V
Pin 1, 44 (Note 1)
Pin 20, 24 (Note 1)
Pin 23 (Note 1)
V
℃
℃
℃
Tstg
-55 ~ +150
+150
Tjmax
(Note 1) A voltage that can be applied with reference to GND (pins 11, 12, 33, 34, and 43)
(Note 2) Pd and Tjmax=150℃ must not be exceeded.
(Note 3) 70mm × 70mm × 1.6mmFR4 One-sided glass epoxy board (Back copper foil 0%) installed.
If used under Ta=25℃ or higher, reduce 16mW for increase of every 1℃. The board is provided with thermal via.
(Note 4) 70mm × 70mm × 1.6mmFR4 Both-sided glass epoxy board (Back copper foil 100%) installed.
If used under Ta=25℃ or higher, reduce 36mW for increase of every 1℃. The board is provided with thermal via.
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© 2010 ROHM Co., Ltd. All rights reserved.
2010.05 - Rev.B
1/16
Technical Note
BD5426EFS
●Operating conditions
The following values assume Ta =25℃. Check for latest values in delivery specifications.
Parameter
Supply voltage
Symbol
VCC
Ratings
+10 ~ +16.5
6 ~ 16
Unit
V
Conditions
Pin 7, 8, 15, 16, 29, 30, 37, 38, 40
(Note 5)
Load resistance
RL
Ω
(Note 5) Pd should not be exceeded.
●Electrical characteristics
Except otherwise specified Ta = 25℃, VCC = 12V, fIN = 1kHz, Rg = 0Ω, RL = 8Ω,MUTEX="H", MS="L"
For latest values, refer to delivery specifications.
Parameter
Whole circuit
Symbol
Limits
Unit
Conditions
Circuit current 1 (Sampling mode)
ICC1
ICC2
25
10
mA
mA
With no signal
MUTEX = “L”
Circuit current 2 (Muting mode)
Control circuit
“H” level input voltage
VIH
VIL
2.3 ~ 12
0 ~ 0.8
V
V
SDX, MUTEX, MS
SDX, MUTEX, MS
“L” level input voltage
Audio circuit
Voltage gain
GV
PO1
28
9
dB
W
PO = 1W
Maximum output power 1 (Note 6)
Maximum output power 2 (Note 6)
Total harmonic distortion (Note 6)
Crosstalk
THD+N = 10%
PO2
10
0.1
85
80
1
W
Vcc = 13V, THD+N = 10%
PO = 1W, BW=20Hz ~ 20kHz
PO = 1W, Rg = 0Ω, BW = IHF-A
THD
CT
%
dB
Output noise voltage
(Sampling mode)
VNO
VNOM
FOSC
µVrms Rg = 0Ω, BW = IHF-A
Residual noise voltage
(Muting mode)
µVrms Rg = 0Ω, BW = IHF-A, MUTEX = “L”
Internal sampling clock frequency
250
kHz
MS = “L” (In master operation)
(Note 6) The rated values of items above indicate average performances of the device, which largely depend on circuit layouts, components,
and power supplies. The reference values are those applicable to the device and components directly installed on a board specified by us.
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© 2010 ROHM Co., Ltd. All rights reserved.
2010.05 - Rev.B
2/16
Technical Note
BD5426EFS
●Electrical characteristic curves (Reference data)
(1)Under Stereo Operation (RL=8Ω)
100
100
10
Vcc=12V
=8Ω
Vcc=12V
RL=8Ω
R
L
Po=1W
BW=20~20kHz
10
BW=20~20kHz
6kHz
1
1
0.1
0.01
0.1
1kHz
100Hz
0.01
10
100
1000
FREQUENCY (Hz)
10000
100000
100000
18
0.001
0.01
0.1 1
OUTPUT POWER (W)
10
100
Fig. 1 THD+N - Output power
Fig. 2 THD+N - Frequency
35
0
Vcc=12V
30
25
20
15
10
5
L
R =8Ω
-20
Po=1W
BW=20~20kHz
Vcc=12V
RL=8Ω
-40
-60
Po=1W
L=33µH
C=0.47µF
Cg=0.1µF
-80
-100
0
10
100
1000
FREQUENCY (Hz)
10000
10
100
1000
10000
100000
FREQUENCY (Hz)
Fig. 3 Voltage gain - Frequency
Fig. 4 Crosstalk - Frequency
0
20
L
R =8Ω
fin=1kHz
Vcc=12V
THD=10%
L
R =8Ω
-20
-40
15
10
5
fin=1kHz
BW=20~20kHz
-60
-80
0
-100
8
10
12
14
16
0.001
0.01
0.1
1
10
100
VCC (V)
OUTPUT POWER (W)
Fig. 5 Crosstalk - Output power
Fig. 6 Output power - Power supply voltage
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© 2010 ROHM Co., Ltd. All rights reserved.
2010.05 - Rev.B
3/16
Technical Note
BD5426EFS
●Electrical characteristic curves (Reference data) – Continued
100
90
80
70
60
50
40
30
20
10
0
100
90
80
70
60
50
40
Vcc=12V
30
20
10
0
Vcc=10V
R
L=8Ω
L
R =8Ω
fin=1kHz
fin=1kHz
0
5
10
15
20
0
5
10
15
20
OUTPUT POWER (W/ch)
OUTPUT POWER (W/ch)
Fig. 7 Efficiency - Output power
Fig. 8 Efficiency - Output power
3
2
1
0
100
90
80
70
60
50
40
30
20
10
0
Vcc=16.5V
Vcc=12V
Vcc=10V
Vcc=16.5V
L
R =8Ω
L
R =8Ω
fin=1kHz
fin=1kHz
0
5
10
15
20
0
5
10 15 20 25 30 35 40
TOTAL OUTPUT POWER (W)
OUTPUT POWER (W/ch)
Fig. 9 Efficiency - Output power
Fig. 10 Current consumption - Output power
100
0
L
R =8Ω
90
80
70
60
50
40
30
20
10
0
Vcc=12V
L
-20
Without signal
R =8Ω
Without signal
BW=20~20kHz
-40
-60
-80
Sampling
Mute
-100
-120
-140
10
100
1000
10000
100000
8
10
12
14
16
18
FREQUENCY (Hz)
VCC (V)
Fig. 11 Current consumption - Power supply voltage
Fig. 12 FFT of Output Noise Voltage
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© 2010 ROHM Co., Ltd. All rights reserved.
2010.05 - Rev.B
4/16
Technical Note
BD5426EFS
●Electrical characteristic curves (Reference data) – Continued
MUTEX
Pin 20
M
Pin 20
UTEX
Vcc=12V
10V/div
Vcc=12V
RL =8
10V/div
5V/div
RL =8
Ω
Ω
Po=500mW
fin=500Hz
Po=500mW
fin=500Hz
TM
Pin 26
TM
Pin 26
5V/div
2V/div
2V/div
Speaker
Output
Speaker
Output
10msec/div
10msec/div
Fig. 13 Wave form when Releasing Soft-mute
Fig. 14 Wave form when Activating Soft-mute
VCCA
VCCA
VHOLD
Pin 27
VHOLD
5V/div
5V/div
Vcc=12V
Vcc=12V
Pin 27
RL =8
RL =8
Ω
Ω
Po=500mW
fin=3kHz
Po=500mW
fin=3kHz
TM
Pin 26
TM
5V/div
2V/div
5V/div
Pin 26
2V/div
Speaker
Output
Speaker
Output
20msec/div
2msec/div
Fig. 15 Wave form on Instantaneous Power Interruption
(20msec / div)
Fig. 16 Wave form on Instantaneous Power Interruption
(2msec / div)
5V/div
Vcc=12V
RL=8 Ω
Soft Clip
Po=5W
THD+n=10%
fin=1kHz
Speaker
Output
R2=91k
R3=22k
Ω
Ω
Soft Clip
200μsec/div
Fig. 17 Wave form on Output Power Limiter function
(Po = 5W)
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© 2010 ROHM Co., Ltd. All rights reserved.
2010.05 - Rev.B
5/16
Technical Note
BD5426EFS
●Electrical characteristic curves (Reference data) – Continued
(2)Under Stereo Operation(RL=6Ω)
25
R
L
=6Ω
fin=1kHz
THD=10%
20
15
10
5
0
8
10
12
14
16
18
V
CC (V)
Fig. 18 Output power - Power supply voltage
100
90
80
70
60
50
40
30
20
10
0
100
90
80
70
60
50
40
Vcc=12V
30
20
10
0
Vcc=10V
L
R =6Ω
fin=1kHz
L
R =6Ω
fin=1kHz
0
5
10
15
20
25
0
5
10
15
20
25
OUTPUT POWER (W/ch)
OUTPUT POWER (W/ch)
Fig. 19 Efficiency - Output power
Fig. 20 Efficiency - Output power
100
90
80
70
60
50
40
30
20
10
0
4
3
2
1
0
Vcc=16.5V
Vcc=12V
Vcc=10V
Vcc=16.5V
L
R =6Ω
fin=1kHz
L
R =6Ω
fin=1kHz
0
5
10 15 20 25 30 35 40 45 50
TOTAL OUTPUT POWER (W)
0
5
10
15
20
25
OUTPUT POWER (W/ch)
Fig. 21 Efficiency - Output power
Fig. 22 Current consumption - Output power
Dotted lines of the graphs indicate continuous output power to be obtained on musical signal source or by installing
additional heat sinks.
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© 2010 ROHM Co., Ltd. All rights reserved.
2010.05 - Rev.B
6/16
Technical Note
BD5426EFS
●Pin Assignment
Top View
DRIVER
DRIVER
2N
2P
DRIVER
1P
DRIVER
1N
Fig. 23 Pin Assignment Diagram
●Outer Dimensions and Inscriptions
18.5 ± 0.1
(MAX 18.85 include BURR)
TYPE
(6.0)
44
23
BD5426EFS
22
1
0.85
1PIN MARK
Lot No.
0.8
(Unit: mm)
Fig. 24 Outer Dimensions and Inscriptions of HTSSOP-A44 Package
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© 2010 ROHM Co., Ltd. All rights reserved.
2010.05 - Rev.B
7/16
Technical Note
BD5426EFS
●Explanation of Pin Functions (Provided pin voltages are typical values.)
No.
Symbol
Pin voltage
Pin description
Internal equalizing circuit
40
ch1 Analog signal input pin
ch2 Analog signal input pin
1
44
IN1
IN2
20k
3.5V
1
/44
Input audio signal via a capacitor.
43
40
Voltage-to-current conversion pin for
output power limiter function
2
PLMT1
3.5V
2
Connect a register.
43
40
Current-to-voltage conversion pin for
output power limiter function
3
PLMT2
-
3
Connect a register.
43
40
Current-to-voltage conversion pin for
output power limiter function
4
4
PLMT3
-
Connect a register.
43
40
Bias pin for output power limiter function
Connect a register and a capacitor.
5
PLMT4
3.5V
5
43
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© 2010 ROHM Co., Ltd. All rights reserved.
2010.05 - Rev.B
8/16
Technical Note
BD5426EFS
●Explanation of Pin Functions - Continued
No.
6
Symbol
BSP1P
Pin voltage
-
Pin description
Internal equalizing circuit
ch1 positive bootstrap pin
Connect a capacitor.
7,8
6
ch1 positive power system power supply
pin
7, 8
9, 10
11, 12
13, 14
15, 16
17
VCCP1P
OUT1P
GNDP1
OUT1N
VCCP1N
BSP1N
Vcc
Vcc ~ 0V
0V
9 10
ch1 positive PWM signal output pin
Connect with output LPF.
11 12
ch1 power system GND pin
15 16
,
ch1 negative PWM signal output pin
Connect with output LPF.
17
Vcc ~ 0V
Vcc
13,14
ch1 negative power system power supply
pin
11,12
ch1 negative bootstrap pin
Connect a capacitor.
-
40
Warning output pin
Pin to notify operation warning.
H: Under warning
L: Normal operation
2k
H: 5V
L: 0V
18
WARNING
18
Connect a resister.
43
40
Error output pin
A pin for notifying operation errors.
H: Error
L: Normal operation
H: 5V
L: 0V
19
43
19
ERROR
2k
Connect a resister.
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© 2010 ROHM Co., Ltd. All rights reserved.
2010.05 - Rev.B
9/16
Technical Note
BD5426EFS
●Explanation of Pin Functions - Continued
No.
Symbol
Pin voltage
Pin description
Internal equalizing circuit
40
20
43
Audio mute control pin
120
k
H: Mute off
L: Mute on
20
MUTEX
-
N.C. pin
Nothing is connected with IC internal
circuit.
21, 22
N.C.
-
40
23
43
Sampling clock signal input/output pin
23
OSC
-
When using two or more sampling clocks,
connect via a capacitor.
40
24
43
Master/Slave switching pin
1
20k
Switching of master/slave functions on a
sampling clock signal.
H: Slave operation
24
MS
-
L: Master operation
40
Internal PWM sampling clock frequency
setting pin
25
ROSC
5.6V
Usually the pin is used open.
To adjust an internal sampling clock
frequency, connect a resister.
25
43
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© 2010 ROHM Co., Ltd. All rights reserved.
2010.05 - Rev.B
10/16
Technical Note
BD5426EFS
●Explanation of Pin Functions - Continued
No.
Symbol
Pin voltage
Pin description
Internal equalizing circuit
40
26
43
Audio muting constant setting pin
Connect a capacitor.
26
TM
0 ~ 5V
40
Instantaneous power interruption detecting
voltage setting pin
27
VHOLD
0.68×Vcc
27
43
Connect a capacitor.
To adjust a detecting voltage, connect a
resister.
ch2 negative bootstrap pin
Connect a capacitor.
28
BSP2N
VCCP2N
OUT2N
GNDP2
OUT2P
VCCP2P
BSP2P
-
29,30
28
ch2 negative power system power supply
pin
29, 30
31, 32
33, 34
35, 36
37, 38
39
Vcc
31,32
ch2 negative PWM signal output pin
Connect an output LPF.
Vcc ~ 0V
33
37
,34
,38
ch2 power system GND pin
0V
39
ch2 positive PWM signal output pin
Connect an output LPF.
Vcc ~ 0V
35,36
ch2 positive power system power supply
pin
Vcc
33
,
34
ch2 positive bootstrap pin
Connect a capacitor.
-
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© 2010 ROHM Co., Ltd. All rights reserved.
2010.05 - Rev.B
11/16
Technical Note
BD5426EFS
●Explanation of Pin Functions - Continued
No.
40
Symbol
VCCA
Pin voltage
Vcc
Pin description
Internal equalizing circuit
Analog system power pin
40
41
Vcc+35
12
PWM system bias pin
Connect a capacitor.
41
FILP
43
40
Analog signal system bias pin
Connect a capacitor.
42
43
42
FILA
3.5V
Analog system power supply pin
43
GNDA
0V
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© 2010 ROHM Co., Ltd. All rights reserved.
2010.05 - Rev.B
12/16
Technical Note
BD5426EFS
●Application Circuit Diagram (under stereo operation)
・Vcc=10V ~ 16.5V
C32
0.68 µ F
C35
C31
0.15 µ F
0.15 µ F
GNDA
VCCA
C43
10 µ F
C38
GNDD
C40
0.1 µ F
10 µ F
C41
1 µ F
C37
0.1 µ F
C29
0.1 µ F
C28
0.68 µ F
C39
0.68 µ F
C42
10 µ F
DRIVER
DRIVER
2P
2N
DRIVER
1P
DRIVER
1N
R4
22kΩ
R3
22kΩ
C7
0.1 µ F
C15
0.1 µ F
C6
0.68 µ F
C5
0.1 µ F
GNDA
C8 10 µ F
C17
0.68 µ F
GNDA
C9
C13
0.15 µ F
0.15 µ F
C10
0.68 µ F
Fig. 25 Circuit Diagram of Stereo Operation with 6Ω Load
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© 2010 ROHM Co., Ltd. All rights reserved.
2010.05 - Rev.B
13/16
Technical Note
BD5426EFS
Table 1 BOM List of Stereo Operation with 6Ω Load
Configuration
Rated
voltage
Temperature
characteristics
No. Item
Part Number
Vendor
Value
Tolerance
Quantity
Reference
mm
inch
1
2
IC BD5426EFS
GRM219B31E684KA88D MURATA
GRM188R11H104KA93 MURATA
GRM31MB11H154KA01B MURATA
ROHM
HTSSOP-A44
-
-
-
-
±10%
1
4
5
4
2
2
1
3
1
1
3
3
2
IC1
C
C
C
C
C
C
C
C
C
C
R
R
2012
1608
3216
3225
3225
2012
1608
2012
2012
6666
1005
1005
0805 0.68µF
0603 0.1µF
1206 0.15µF
1210 2.2µF
1210 0.68µF
25V
50V
50V
25V
50V
25V
25V
16V
16V
25V
50V
50V
±10%
±10%
±10%
±20%
±20%
±10%
±10%
±10%
±10%
±20%
±1%
C6, C17, C28, C39
C7, C15, C29, C37, C40
C9, C13, C31, C35
C1, C44
3
±10%
4
±10%
5
25ST225M3216
Rubycon
Rubycon
MURATA
MURATA
MURATA
MURATA
SANYO
ROHM
±5%
6
50ST684M3225
±5%
C10, C32
7
GRM21BB31E335KA75
GRM188B11E104KA
GRM21BB11C105KA
GRM21BB31C106KE15
25SVPD10M
0805
0603
0805
0805
2626
0402
0402
3.3µF
0.1µF
1µF
±10%
C27
8
±10%
C5, C23, C26
C41
9
±10%
10
11
12
13
10µF
10µF
22kΩ
100kΩ
±10%
C42
±25%
C8, C38, C43
R2, R3, R4
R18, R19
MCR01MZPF2202
MCR01MZPF1003
±200ppm/℃
±200ppm/℃
ROHM
±1%
Configuration
mm
DC
Resistance
Rated
DC Current
No. Item
Part Number
7G09B-220M
Vendor
Value Tolerance
Quantity
2
Reference
14
L
SAGAMI
10×9×10
22µH×2
±20%
44mΩmax.
4.1A max.
L9, L13, L31, L35
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© 2010 ROHM Co., Ltd. All rights reserved.
2010.05 - Rev.B
14/16
Technical Note
BD5426EFS
●Notes on Usage
1. About absolute maximum ratings
If an applied voltage or an operating temperature exceeds an absolute maximum rating, it may cause destruction of a
device. A result of destruction, whether it is short mode or open mode, is not predictable. Therefore, provide a physical
safety measure such as fuse, against a special mode that may violate conditions of absolute maximum ratings.
2. About power supply line
As return of current regenerated by back EMF of output coil happens, take steps such as putting capacitor between
power supply and GND as a electric pathway for the regenerated current. Be sure that there is no problem with each
property such as emptied capacity at lower temperature regarding electrolytic capacitor to decide capacity value. If the
connected power supply does not have sufficient current absorption capacity, regenerative current will cause the voltage
on the power supply line to rise, which combined with the product and its peripheral circuitry may exceed the absolute
maximum ratings. It is recommended to implement a physical safety measure such as the insertion of a voltage clamp
diode between the power supply and GND pins.
3. Potential of GND (11, 12, 33, 34, and 43 pins)
Potential of the GND terminal must be the lowest under any operating conditions.
4. About thermal design
Perform thermal design with sufficient margins, in consideration of maximum power dissipation Pd under actual operating
conditions. This product has an exposed frame on the back of the package, and it is assumed that the frame is used with
measures to improve efficiency of heat dissipation. In addition to front surface of board, provide a heat dissipation pattern
as widely as possible on the back also.
A class-D power amplifier has heat dissipation efficiency far higher than that of conventional analog power amplifier and
generates less heat. However, extra attention must be paid in thermal design so that a power dissipation Pdiss should not
exceed the maximum power dissipation Pd.
Tjmax - Ta
Tjmax: Maximum temperature junction = 150[℃]
Ta: Operating ambient temperature [℃]
θja: Package thermal resistance [℃/W]
Po: Output power [W]
Pd
W
Maximum power dissipation
θja
1
η
Pdiss PO -1
W
Power dissipation
η: Efficiency
5. About operations in strong electric field
Note that the device may malfunction in a strong electric field.
6. Thermal shutdown (TSD) circuit
This product is provided with a built-in thermal shutdown circuit. When the thermal shutdown circuit operates, the output
transistors are placed under open status. The thermal shutdown circuit is primarily intended to shut down the IC avoiding
thermal runaway under abnormal conditions with a chip temperature exceeding Tjmax = 150℃, and is not intended to
protect and secure an electrical appliance. Accordingly, do not use this circuit function to protect a customer's electrical
appliance.
7. About shorting between pins and installation failure
Be careful about direction and displacement of an LSI when installing it onto the board. Faulty installation may destroy
the LSI when the device is energized. In addition, a foreign matter getting inbetween LSI pins, pins and power supply,
and pins and GND may cause shorting and destruction of the LSI.
8. About power supply startup and shutdown
When starting up a power supply, be sure to place the MUTEX pin (pin 20) at “L” level. When shutting down a power
supply also, be sure to place the pin at “L” level. Those processes reduce pop noises generated upon turning on and off
the power supply. In addition, all power supply pins must be started up and shut down at the same time.
9. About WARNING output pin (pin 18) and ERROR output pin (pin 19)
A WARNING flag is output from the WARNING output pin upon operation of the high-temperature protection function and
under-voltage protection function. And an ERROR flag is output from the ERROR output pin upon operation of VCC/GND
shorting protection function and speaker DC voltage applying protection function. These flags are the function which the
condition of this product is shown in. The use which aimed at the protection except for this product is prohibition.
10.About N.C. pins (pins 21 and 22)
The N.C. (Non connection) pins are not connected with an internal circuit. Leave the pins open or connect them to GND.
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© 2010 ROHM Co., Ltd. All rights reserved.
2010.05 - Rev.B
15/16
Technical Note
BD5426EFS
●Ordering part number
B D
- E
2
5
4
2
6
E
F
S
Part No.
Part No.
Package
EFS:HTSSOP-44
Packaging and forming specification
E2: Embossed tape and reel
HTSSOP-A44
<Tape and Reel information>
18.5 0.1
(MAX 18.85 include BURR)
Tape
Embossed carrier tape (with dry pack)
+
−
6°
(6.0)
4°
4°
44
23
Quantity
1500pcs
E2
Direction
of feed
The direction is the 1pin of product is at the upper left when you hold
reel on the left hand and you pull out the tape on the right hand
(
)
22
1
1PIN MARK
0.85
+0.05
0.17
-
0.03
S
0.08 S
0.08 M
0.8
+0.05
0.37
-
0.04
Direction of feed
1pin
Reel
Order quantity needs to be multiple of the minimum quantity.
(Unit : mm)
∗
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© 2010 ROHM Co., Ltd. All rights reserved.
2010.05 - Rev.B
16/16
Notice
N o t e s
No copying or reproduction of this document, in part or in whole, is permitted without the
consent of ROHM Co.,Ltd.
The content specified herein is subject to change for improvement without notice.
The content specified herein is for the purpose of introducing ROHM's products (hereinafter
"Products"). If you wish to use any such Product, please be sure to refer to the specifications,
which can be obtained from ROHM upon request.
Examples of application circuits, circuit constants and any other information contained herein
illustrate the standard usage and operations of the Products. The peripheral conditions must
be taken into account when designing circuits for mass production.
Great care was taken in ensuring the accuracy of the information specified in this document.
However, should you incur any damage arising from any inaccuracy or misprint of such
information, ROHM shall bear no responsibility for such damage.
The technical information specified herein is intended only to show the typical functions of and
examples of application circuits for the Products. ROHM does not grant you, explicitly or
implicitly, any license to use or exercise intellectual property or other rights held by ROHM and
other parties. ROHM shall bear no responsibility whatsoever for any dispute arising from the
use of such technical information.
The Products specified in this document are intended to be used with general-use electronic
equipment or devices (such as audio visual equipment, office-automation equipment, commu-
nication devices, electronic appliances and amusement devices).
The Products specified in this document are not designed to be radiation tolerant.
While ROHM always makes efforts to enhance the quality and reliability of its Products, a
Product may fail or malfunction for a variety of reasons.
Please be sure to implement in your equipment using the Products safety measures to guard
against the possibility of physical injury, fire or any other damage caused in the event of the
failure of any Product, such as derating, redundancy, fire control and fail-safe designs. ROHM
shall bear no responsibility whatsoever for your use of any Product outside of the prescribed
scope or not in accordance with the instruction manual.
The Products are not designed or manufactured to be used with any equipment, device or
system which requires an extremely high level of reliability the failure or malfunction of which
may result in a direct threat to human life or create a risk of human injury (such as a medical
instrument, transportation equipment, aerospace machinery, nuclear-reactor controller, fuel-
controller or other safety device). ROHM shall bear no responsibility in any way for use of any
of the Products for the above special purposes. If a Product is intended to be used for any
such special purpose, please contact a ROHM sales representative before purchasing.
If you intend to export or ship overseas any Product or technology specified herein that may
be controlled under the Foreign Exchange and the Foreign Trade Law, you will be required to
obtain a license or permit under the Law.
Thank you for your accessing to ROHM product informations.
More detail product informations and catalogs are available, please contact us.
ROHM Customer Support System
http://www.rohm.com/contact/
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© 2010 ROHM Co., Ltd. All rights reserved.
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A
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