LA5617 [SANYO]
Multi-System Power Supply for Audio Equipment; 多系统电源的音响器材
| 型号： | LA5617 |
| 厂家： | 
SANYO SEMICON DEVICE |
| 描述： | Multi-System Power Supply for Audio Equipment |
| 文件： | 总4页 (文件大小：46K) |
| 中文： | 中文翻译 | 下载： | 下载PDF数据表文档文件 |
Ordering number : ENN5671
Monolithic Linear IC
LA5617
Multi-System Power Supply for Audio Equipment
Overview
Package Dimensions
The LA5617 is a multi-system power supply IC with a
built-in on/off control function. It is optimal for use as the
power supply IC in CD players, mini-component stereo
systems, and other microcontroller controlled audio
equipment.
unit: mm
3046D-SIP10F
[LA5617]
25.2
24.0
3.6
3.6
Functions
• Power supply IC with ±7.5 V outputs (±1.5 A) and an
on/off control function.
• The LA5617 is pin compatible with the LA5618.
10
1
(1.17)
2.54
0.5
1.3
0.45
1.6
SANYO: SIP10F
Specifications
Maximum Ratings at Ta = 25°C
Parameter
Symbol
CC/VEE max
Pd max
Topr
Conditions
Ratings
Unit
V
Input voltage
V
±18
2.0
Allowable power dissipation
Operating temperature
Storage temperature
With no heat sink
W
–20 to +85
–55 to +150
°C
°C
Tstg
Note: On a glass epoxy printed circuit board (114.3 × 76.1 × 1.6 mm)
Operating Conditions at Ta = 25°C
Parameter
Symbol
VCC/VEE
Conditions
Ratings
±9.5 to ±16
0 to 1.5
Unit
V
Input voltage
I
OUT1
OUT2
A
Output current
I
–1.5 to 0
A
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
52804TN (OT) No. 5671-1/4
LA5617
Operating Characteristics at Ta= 25°C, V /V = ±9.5 V, in the specified test circuit.
CC EE
Ratings
typ
Parameter
Symbol
Conditions
Unit
min
max
[+7.5 V Power Supply Block] IOUT1 = 500 mA, COUT1 = 100 µF
Output voltage
Dropout voltage
VO1
7.0
7.5
1.5
1.0
20
8.0
V
V
V
DROP1-1
2.0
1.5
V
DROP1-2 IOUT1 = 300 mA
V
Line regulation
∆VOLN1 9 V ≤ VCC ≤ 16 V
∆VOLD1 5 mA ≤ IOUT1 ≤ 1 A
100
200
mV
mV
A
Load regulation
80
Peak output current
Output short current
Output off voltage
Ripple rejection
I
OP1
OSC1
VO1OFF VEN = 0.4 V
Rrej1 f = 120 Hz, 8.5 V ≤ VCC ≤ 16 V, CN1 = 1 µF
VCC/VEE = ±12 V
1.5
1.8
1.0
I
A
0.3
V
65
dB
[–7.5 V Power Supply Block] IOUT2 = 500 mA, COUT2 = 100 µF
Output voltage
VO2
–8.0
–7.5
1.5
–7.0
2.0
V
V
V
DROP2-1
Dropout voltage
V
DROP2-2 IOUT2 = –300 mA
1.0
1.5
V
Line regulation
∆VOLN2 –16 V ≤ VEE ≤ –9 V
∆VOLD2 –1 A ≤ IOUT2 ≤ –5 mA
200
80
300
200
–1.5
mV
mV
A
Load regulation
Peak output current
Output short current
Output off voltage
Ripple rejection
I
OP2
OSC2
VO2 OFF VEN = 0.4 V
Rrej2 f = 120 Hz, 16 V ≤ VEE ≤ –8.5 V, CN2 = 1 µF
VCC/VEE = ±12 V
–1.8
–1.0
I
A
–0.3
V
50
dB
[Common Circuit Block] COUT1 = 100 µF, COUT2 = 100 µF
Output off control voltage
VENL
QP1
IQP
VO1, VO2: Off
0.4
V
I
IOUT1 = 0, IOUT2 = 0
IOUT1 = 1.5 A, IOUT2 = 0
IOUT1 = 0, IOUT2 = 0
IOUT1 = 0, IOUT2 = –1.5 A
5.0
7.0
mA
mA
mA
mA
Current drain (positive voltage
power supply block)
2
IQM1
–5.0
–12.0
Current drain (negative voltage
power supply block)
IQM2
Pd max — Ta
3
2
1.04
1
0
–20
0
20
40
60
80
100
Ambient temperature, Ta — °C
Pin Assignment
LA5617
Top view
1
2
3
4
5
6
7
8
9
10
Note: The TP pin is used for IC testing.
It must be left open during normal operation.
A06994
No. 5671-2/4
LA5617
Equivalent Circuit Block Diagram
2
V
CC
V
REF
Error
1
3
6
V
1
O
amplifier
Startup circuit
V
REF
CN1
ON/OFF
Current limiter
Current limiter
ON/OFF
GND
Thermal protection
circuit
V
V
MUTE CC
140 µA
V
CC
100 kΩ
Comparator
CN2
60 kΩ
8
1.8 V
Error
amplifier
V
V
2
O
30 kΩ
10
V
REF
EE
9
4
5
TP
EN
Note: The TP pin is used for IC testing.
It must be left open during normal operation.
A06995
No. 5671-3/4
LA5617
Sample Application Circuit: Mini-component stereo system power supply
LA5617
1 µF
CN1
3
1
V
CC
7.5V
2
9
Audio circuit
block
V
V
1
2
V
1 and V
blocks
2
O
O
O
O
10
–7.5V
8
CN2
V
EE
1 µF
Bias blocks
4
EN
On/off control
6
GND
A06996
Notes: 1. A capacitor with a low temperature coefficient must be used as the EN DELAY delay capacitor.
2. The VO1 and VO2 output capacitors must have values of at least 100 µF and capacitors with low temperature coefficients must be used to prevent
oscillation at low temperatures.
3. External noise can be suppressed and ripple rejection improved by adding capacitors between CN1 and VO1 and between CN2 and VO2.
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 May, 2004. Specifications and information herein are subject to
change without notice.
PS No. 5671-4/4
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