概述
规格参数
数据手册LA4628 概述
Two-Channel 20 W BTL Audio Power Amplifier 双通道20瓦BTL音频功率放大器 音频/视频放大器
LA4628 规格参数
| 是否Rohs认证： | 不符合 | 生命周期： | Transferred |
| 零件包装代码： | SIP | 包装说明： | ZIP, ZIP14,.06,.09,70 |
| 针数： | 14 | Reach Compliance Code： | unknown |
| ECCN代码： | EAR99 | HTS代码： | 8542.33.00.01 |
| 风险等级： | 5.53 | Is Samacsys： | N |
| 标称带宽： | 20 kHz | 商用集成电路类型： | AUDIO AMPLIFIER |
| 增益： | 40 dB | 谐波失真： | 10% |
| JESD-30 代码： | R-PZFM-T14 | JESD-609代码： | e0 |
| 信道数量： | 2 | 功能数量： | 1 |
| 端子数量： | 14 | 最高工作温度： | 85 °C |
| 最低工作温度： | -20 °C | 标称输出功率： | 30 W |
| 封装主体材料： | PLASTIC/EPOXY | 封装代码： | ZIP |
| 封装等效代码： | ZIP14,.06,.09,70 | 封装形状： | RECTANGULAR |
| 封装形式： | FLANGE MOUNT | 电源： | 13.5 V |
| 认证状态： | Not Qualified | 子类别： | Audio/Video Amplifiers |
| 最大压摆率： | 250 mA | 最大供电电压 (Vsup)： | 20 V |
| 最小供电电压 (Vsup)： | 9 V | 表面贴装： | NO |
| 技术： | BIPOLAR | 温度等级： | OTHER |
| 端子面层： | Tin/Lead (Sn/Pb) | 端子形式： | THROUGH-HOLE |
| 端子节距： | 1.78 mm | 端子位置： | ZIG-ZAG |
| Base Number Matches： | 1 |
LA4628 数据手册
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PDF下载Ordering number : ENN6632
Monolithic Linear IC
LA4628
Two-Channel 20 W BTL Audio Power Amplifier
Overview
Package Dimensions
The LA4628 is a 2-channel general-purpose BTL audio
power amplifier provided in a miniature package. It was
designed for the best possible audio quality and features
an extended low band roll-off frequency provided by a
newly-developed NF circuit that does not require an
external capacitor. Furthermore, crosstalk, which can
cause muddiness in the audio output, has been
significantly reduced by both circuit and wiring pattern
improvements. Thus this amplifier can provide powerful
lows and clear highs.
unit: mm
3113A-SIP14HZ
[LA4628]
4.0
27.0
20.0
Note that this device is pin compatible with the 13.5 W ×
2-channel LA4625, and allows end products differentiated
by their power rating to share the same printed circuit
board.
1
14
1.94
0.5
0.4
1.6
3.56
2.2
Features
• Total output: 20 W + 20 W (at V = 13.5 V, RL = 4 Ω,
CC
1.78
3.56
THD = 10%)
• High-fidelity design (f < 10 Hz, f = 130 kHz)
L
H
SANYO: SIP14HZ
• Extremely low impulse noise levels
• An arbitrary amplifier startup time can be set up with
external components.
• Full complement of built-in protection circuits (includes
circuits that protect against shorting to V , shorting to
CC
ground, load shorting, overvoltages and excessive
temperatures)
Any and all SANYO products described or contained herein do not have specifications that can handle
applications that require extremely high levels of reliability, such as life-support systems, aircraft’s
control systems, or other applications whose failure can be reasonably expected to result in serious
physical and/or material damage. Consult with your SANYO representative nearest you before using
any SANYO products described or contained herein in such applications.
SANYO assumes no responsibility for equipment failures that result from using products at values that
exceed, even momentarily, rated values (such as maximum ratings, operating condition ranges, or other
parameters) listed in products specifications of any and all SANYO products described or contained
herein.
SANYO Electric Co.,Ltd. Semiconductor Company
TOKYO OFFICE Tokyo Bldg., 1-10, 1 Chome, Ueno, Taito-ku, TOKYO, 110-8534 JAPAN
92900RM (OT) No. 6632-1/8
LA4628
Pd max — Ta
35
30
25
θjc=2.0°C/W
θf=3°C/W
θf=4°C/W
20
15
θf=7°C/W
θf=10°C/W
10
5
No Fin
0
–20
0
20
40
60
80 100 120 140 160
Ambient temperature, Ta —°C
Specifications
Maximum Ratings at Ta = 25°C
Parameter
Maximum supply voltage
Maximum output current
Allowable power dissipation
Operating temperature
Storage temperature
Symbol
Conditions
Ratings
Unit
V
VCC max
No signal
24
4
I
O peak
Per channel
A
Pd max
Topr
With an arbitrarily large heat sink
32.5
–20 to +85
–40 to +150
W
°C
°C
Tstg
Operating Conditions at Ta = 25°C
Parameter
Symbol
VCC
Conditions
Ratings
13.5
Unit
V
Recommended supply voltage
Recommended load resistance range
Allowable operating supply voltage range
RL op
4 to 8
9 to 20
Ω
V
CC op
V
Note: With VCC, RL, and the output level in ranges such that the Pdmax for the heat sink used is not exceeded.
Operating Characteristics at Ta = 25°C, V = 13.5 V, RL = 4 Ω, f = 1 kHz, Rg = 600 Ω
CC
Ratings
typ
130
Parameter
Quiescent current
Symbol
Conditions
With Rg = 0 and RL open.
Unit
min
70
max
250
ICCO
Ist
mA
µA
dB
%
Standby mode current drain
Voltage gain
Standby mode (amplifier off), with no power supply capacitor.
VO = 0 dBm
10
40
60
42
VG
38
16
Total harmonic distortion
THD
PO1
PO2
PO = 1 W, Filter = FLAT
0.06
20
0.2
VCC = 13.5 V, THD = 10%, RL = 4 Ω
VCC = 16.5 V, THD = 10%, RL = 4 Ω
W
Output power
30
W
Output offset voltage
Output noise voltage
Ripple rejection ratio
Channel separation
Input resistance
V
N offset Rg = 0
VNO Rg = 0, BPF = 20 Hz to 20 kHz
SVRR Rg = 0, VR = 0 dBm, fR = 100 Hz
–300
+300
0.5
mV
mV
dB
dB
kΩ
V
0.1
50
60
30
40
50
CH Sep Rg = 10 kΩ, VO = 0 dBm
Ri
21
39
Standby pin applied voltage
VST
Amplifier on (applied through an external 10 kΩ resistor)
2.5
VCC
No. 6632-2/8
LA4628
Equivalent Circuit Block Diagram
C2
100 µ/16 V
VCC
+
+
2200 µ
25 V
C5
14
2
OUTPUT PIN TO VCC
SHORT PROTECTOR
RIPPLE
FILTER
–OUT1
–
PREDRIVER
PREDRIVER
POWER
POWER
13
**
C1
C6 0.1 µ
+
R2
2.2
R3
2.2
+
–
1
RL
4 Ω
POWER
GND1
LOAD SHORT
PROTECTOR
IN
12
2.2 µ
10 V
**
C7 0.1 µ
11
+OUT1 +
OUTPUT PIN TO GND
SHORT PROTECTOR
PRE GND
OVER VOLTAGE/
SURGE
BIAS
CIRCUIT
3
**
(POLYESTER
FILM
CAPACITOR)
VCC
R1
10 K
ON
THERMAL
STANDBY
SW
4
6
OUTPUT PIN TO GND
SHORT PROTECTOR
OFF
SHUT DOWN
Standby
SW
–OUT2
+5 V
C4
–
PREDRIVER
PREDRIVER
POWER
9
C8 0.1 µ
IN2
**
+
R4
2.2
R5
2.2
+
IN
–
RL
4 Ω
LOAD SHORT
PROTECTOR
POWER
GND2
10
2.2 µ
10 V
8**
C9 0.1 µ
POWER
+OUT2 +
OUTPUT PIN TO VCC
SHORT PROTECTOR
POP NOISE
PREVENTION
CIRCUIT
5
7
+
+
C3
33 µ
10 V
0.47 µ
10 V
C10
C3
Sets the amplifier starting time
(Approximately 0.6 seconds when 33 µF)
C10
Impulse noise reduction
(Note: The device’s ability to withstand shorting
to VCC or shorting to ground when VCC is around
16 V may be reduced as the value of this
capacitor is increased. We recommend 0.47 µF.)
No. 6632-3/8
LA4628
Pin Voltages
V
CC
= 13.5 V, with 5 V applied to STBY through a 10 kΩ resistor, RL = 4 Ω, Rg = 0
Pin No.
Pin
1
2
3
4
5
6
7
IN1
DC
PRE–GND
0 V
STBY
3.21 V
ON TIME
2.32 V
IN2
POP
2.07 V
Pin voltage
1.55 V
6.63 V
1.55 V
Pin No.
Pin
8
9
10
PWR–GND2
0 V
11
12
PWR–GND1
0 V
13
14
+OUT2
6.6 V
–OUT2
6.5 V
+OUT1
6.5 V
–OUT1
6.6 V
VCC
Pin voltage
13.5 V
External Components
C1 and C4: Input capacitors. A value of 2.2 µF is recommended. Determine the polarity based on the DC potential of the
circuit connected directly to the LA4628 front end. Note that the low band response can be adjusted by
varying f with the capacitors C1 and C4.
L
C2: Decoupling capacitor (ripple filter)
C3: Sets the amplifier starting time, which will be approximately 0.6 seconds for a value of 33 µF. The starting
time is proportional to the value of this capacitor, and can be set to any desired value.
C5: Power-supply capacitor
C6, C7, C8, and C9:
Oscillation prevention capacitors. Use polyester film capacitors (Mylar capacitors) with excellent
characteristics. (Note that the series resistors R2, R3, R4, and R5 are used in conjunction with these
capacitors to achieve stable amplifier operation.) A value of 0.1 µF is recommended.
C10: Impulse noise reduction capacitor. A value of 0.47 µF is recommended. Caution is required when selecting
the value for this capacitor, since increasing its value influences the operation of the circuits that protect
against shorting the amplifier output pins to V or to ground when higher V voltages (approximately
CC
CC
16 V or higher) are used.
R1: Standby switch current limiting resistor. A value of 10 kΩ is recommended when a voltage in the range 2.5
to 13.5 V will be applied as the standby switching voltage. Note that this resistor is not optional: it must be
included.
IC Internal Characteristics and Notes
1. Standby function
500 µA or lower
• Pin 4 is the standby switch. A voltage of 2.5 V or
10 kΩ
higher must be applied through an external resistor to
turn the amplifier on.
4
R1
• If a voltage of over 13.5 V will be applied as the
standby mode switching voltage, use the following
formula to determine the value of R1 so that the
current entering at pin 4 remains under 500 µA.
Applied standby
voltage
About 1.4 V
(2 VBE
)
<applied voltage> – 1.4
R1 = —————————— – 10 kΩ
500 µA
Pin 4 Internal Equivalent Circuit
2. Muting function
• Pin 5 connects the capacitor that determines the starting time to prevent impulse noise. It can also be used to mute
the amplifier output by shorting pin 5 to ground. When this function is used, the recovery time depends on C3.
No. 6632-4/8
LA4628
3. Impulse noise improvements
• While the LA4628 achieves a low level of impulse noise, if even further reductions in impulse noise at power on/off
(and when switching into or out of standby mode) a 0.47 µF capacitor may be inserted between pin 7 and the PRE
GND pin (pin 3). (Pin 7 is the output amplifier bias pin. Since the ability to withstand shorting the output pins to
V
CC
or ground is reduced for supply voltages over 16 V if the pin 7 capacitance is large, we recommend a value of
0.47 µF or lower for this capacitor.)
4. Protection circuits
• Due to the system structure of the protection circuit for shorts to V or ground, if there is a DC resistance between
CC
the amplifier output pins and ground, the protection circuit may operate when power is first applied and the
amplifier may fail to turn on. The basic design approach we recommend is not to adopt any designs in which there is
a DC resistance between the amplifier outputs and ground.
• The LA4628 includes a built-in thermal protection circuit to prevent the IC from being damaged or destroyed if
abnormally high temperatures occur. This thermal protection circuit gradually reduces the output if the IC junction
temperature (Tj) reaches the range 170 to 180°C due to inadequate heat sinking or other problem. If the temperature
falls, the amplifier will restart automatically.
• The LA4628 also includes other protection circuits. Use of these circuits also requires care during end product
design and testing.
5. Other notes
• The LA4628 is a BTL power amplifier. When testing this device, the ground systems for the test equipment
connected to IC inputs, and that for the test equipment connected to IC outputs, must be isolated. Do not use a
common ground.
Printed Circuit Pattern
(copper foil side)
GND
C5
+
14
1
LA4628
C1
V
CC
IN1
+
+
C2
--OUT1
+OUT1
R2
R3
C6
C7
STB
C3
GND
R1
+
+
IN2
C4
+
C10
--OUT2
+OUT2
R4
R5
C8
C9
GND
ILA00349
No. 6632-5/8
LA4628
PO — VCC
P
— VIN
O
40
35
30
25
20
15
10
100
f = 1 kHz
Rg = 600 Ω
THD = 10 %
VCC = 13.5 V
RL = 4 Ω
f = 1 kHz
7
5
3
2
10
7
5
3
2
1.0
7
5
3
2
0.1
7
5
5
0
3
2
0.01
1.0
6
7
8
9
10 11 12 13 14 15 16 17 18
2
3
5
7
2
3
5
7
2
3
5 7
10
100
1k
ILA00335
Supply voltage, V — V
ILA00334
Input voltage, V — mVrms
CC
IN
PO — f
f Response
25
20
15
10
2
0
THD = 10 %
THD = 3 %
THD = 1 %
--2
--4
--6
VCC = 13.5 V
L = 4 Ω
Rg = 600 Ω
5
0
--8
R
VCC = 13.5 V
R
L = 4 Ω
O = 0 dBm at 1 kHz
V
Rg = 600 Ω
--10
2
3
5 7
2
3
5
7
2
3
5
7
2
3
5
7
2
3
5 7
2
3
5
7
2
3
5
7
2
3
5 7
10
100
1k
10k
100k
ILA00338
10
100
1k
10k
100k
ILA00339
Frequency, f — Hz
Frequency, f — Hz
THD — PO
THD — PO
10
7
10
7
VCC =13.5 V
VCC = 13.5 V
5
5
R
L =4 Ω
R
L = 6 Ω
Rg = 600 Ω
Rg = 600 Ω
3
2
3
2
1.0
1.0
7
5
7
5
10 kHz
100 Hz
3
2
3
2
10 kHz
0.1
7
5
0.1
7
5
1 kHz
1 kHz
3
2
3
2
100 Hz
0.01
0.1
0.01
2
3
5
7
2
3
5
7
2
3
5
7
2
3
5
7
2
3
5
7
2
3
5 7
1.0
10
100
ILA00336
0.1
10
100
ILA00337
O1u.0tput power, P — W
Output power, P — W
O
O
THD — f
CH sep. — f
10
0
VCC = 13.5 V
L = 4 Ω
O = 1 W
VCC = 13.5 V
L = 4 Ω
Rg = 10 kΩ
O = 0 dBm
7
5
R
P
R
--10
3
2
--20
--30
--40
--50
--60
--70
V
1.0
7
5
3
2
CH1 → 2
CH2 → 1
0.1
7
5
3
2
--80
--90
0.01
2
3
5 7
2
3
5
7
2
3
5
7
2
3
5
7
2
3
5
7
2
3
5
7
2
3
5
7
2
3
5 7
10
100
1k
10k
100k
ILA00341
10
100
1k
10k
100k
ILA00340
Frequency, f — Hz
Frequency, f — Hz
No. 6632-6/8
LA4628
VNO — Rg
SVRR — VCC
0
--20
--40
--60
--80
1.0
Rg = 0
fR = 100 Hz
VCCR = 0 dBm
VCC = 13.5 V
7
R
L = 4 Ω
5
DIN AUDIO
3
2
OUT1
OUT2
0.1
7
5
3
2
--100
--120
0.01
100
2
3
5
7
2
3
5
7
2
3
5
7
5
7
9
11
13
15
17
19
21
23
1k
10k
100k
Supply voltage, V — V
Signal source resistance, Rg — Ω
ILA00342
ILA00343
CC
SVRR — VCCR
SVRR — fR
0
0
--20
--40
--60
VCC = 13.5 V
L = 4 Ω
Rg = 0
VCC = 13.5 V
L = 4 Ω
Rg = 0
R
R
--20
VCCR = 0 dBm
--40
--60
100 Hz OUT1
100 Hz OUT2
3 kHz OUT1
3 kHz OUT2
OUT1
OUT2
--80
--80
VO
VCCR
Calculated at SVRR = 20 log
--100
--100
2
3
5
7
2
3
5
7
2
3
5
7
2
3
5 7
0
0.2
0.4
0.6
0.8
1.0
1.2
1.4
1.6
1.8
2.0
10
100
1k
10k
100k
ILA00344
ILA00345
Frequency, f — Hz
Pd — PO (RL = 6 Ω)
Power supply ripple, V
— Vrms
Pd — PO (RLCC=R4 Ω)
32
28
24
20
16
12
8
32
RL = 4 Ω
Rg = 600 Ω
f = 1 kHz
Calculated at
Pd = (VCC × ICC) -- (2PO)
RL = 6 Ω
Rg = 600 Ω
f = 1 kHz
Calculated at
Pd = (VCC × ICC) -- (2PO)
28
24
20
16
12
8
4
0
4
0
2
3
5
7
2
3
5
7
2
3
5
7
2
3
5
7
2
3
5
7
2
3
5 7
0.1
1.0
10
100
0.1
1.0
10
100
Output power, P — W/ch
O
ILA00346
ILA00347
Output power, P — W/ch
O
ICC — PO
6
RL = 4 / 6 Ω
Rg = 600 Ω
f = 1 kHz
5
4
3
2
1
0
0.1
2
3
5
7
2
3
5
7
2
3
5 7
1.0
10
100
ILA00348
Output power, P — W/ch
O
No. 6632-7/8
LA4628
Specifications of any and all SANYO products described or contained herein stipulate the performance,
characteristics, and functions of the described products in the independent state, and are not guarantees
of the performance, characteristics, and functions of the described products as mounted in the customer’s
products or equipment. To verify symptoms and states that cannot be evaluated in an independent device,
the customer should always evaluate and test devices mounted in the customer’s products or equipment.
SANYO Electric Co., Ltd. strives to supply high-quality high-reliability products. However, any and all
semiconductor products fail with some probability. It is possible that these probabilistic failures could
give rise to accidents or events that could endanger human lives, that could give rise to smoke or fire,
or that could cause damage to other property. When designing equipment, adopt safety measures so
that these kinds of accidents or events cannot occur. Such measures include but are not limited to protective
circuits and error prevention circuits for safe design, redundant design, and structural design.
In the event that any or all SANYO products (including technical data, services) described or contained
herein are controlled under any of applicable local export control laws and regulations, such products must
not be exported without obtaining the export license from the authorities concerned in accordance with the
above law.
No part of this publication may be reproduced or transmitted in any form or by any means, electronic or
mechanical, including photocopying and recording, or any information storage or retrieval system,
or otherwise, without the prior written permission of SANYO Electric Co., Ltd.
Any and all information described or contained herein are subject to change without notice due to
product/technology improvement, etc. When designing equipment, refer to the “Delivery Specification”
for the SANYO product that you intend to use.
Information (including circuit diagrams and circuit parameters) herein is for example only; it is not
guaranteed for volume production. SANYO believes information herein is accurate and reliable, but
no guarantees are made or implied regarding its use or any infringements of intellectual property rights
or other rights of third parties.
This catalog provides information as of September, 2000. Specifications and information herein are
subject to change without notice.
PS No. 6632-8/8
LA4628 相关器件
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