LA5616 [SANYO]
Microprocessor-Controlled Audio Power Supply; 微处理器控制的音频电源
| 型号： | LA5616 |
| 厂家： | 
SANYO SEMICON DEVICE |
| 描述： | Microprocessor-Controlled Audio Power Supply |
| 文件： | 总5页 (文件大小：94K) |
| 中文： | 中文翻译 | 下载： | 下载PDF数据表文档文件 |
Ordering number : EN5286
Monolithic Linear IC
LA5616
Microprocessor-Controlled
Audio Power Supply
Overview
Package Dimensions
unit: mm
The LA5616 is appropriate for use in power supplies for
microprocessor-controlled CD players, tuners, receivers,
and similar audio equipment.
3018A-SIP10F
[LA5616]
Functions
• Low-saturation 5-V, 400-mA power supply
• 7.0-V, 1.0-A power supply
• Output reset generation function
• The 5.0-V system can be controlled (on/off) from the
provided active-high enable pin.
Features
• The reset output delay time can be set with an external
capacitor.
• Sharp-cutoff current limiter circuit and thermal
protection circuit
• Active pull-up element incorporated in reset output
circuit for improved noise suppression.
SANYO: SIP10F
Specifications
Absolute Maximum Ratings at Ta = 25°C
Parameter
Symbol
IN max
EN max
RES max
Conditions
Ratings
Unit
V
Input voltage
V
18
VIN max
18
Enable pin voltage
V
V
Reset output pin voltage
Allowable power dissipation
Operating temperature
Storage temperature
V
V
Pd max
Topr
2
W
°C
°C
–20 to +80
–55 to +150
Tstg
Operating Conditions at Ta = 25°C
Parameter
Symbol
VIN
Conditions
Ratings
5.6 to 17
0 to 400
0 to 1.0
0 to 200
0 to 2
Unit
V
Input voltage
I
I
OUT1
mA
A
Output current
OUT2
Reset output source current
Reset output sink current
IORH
IORL
High level
Low level
µA
mA
SANYO Electric Co.,Ltd. Semiconductor Bussiness Headquarters
TOKYO OFFICE Tokyo Bldg., 1-10, 1 Chome, Ueno, Taito-ku, TOKYO, 110 JAPAN
93096HA (OT)No. 5286-1/5
LA5616
Electrical Characteristics at Ta = 25°C
Ratings
typ
Parameter
Symbol
Conditions
Unit
min
max
[5.0-V Power Supply Block] VIN1 = VIN2, COUT2 = 47 µF
Output voltage
V
OUT1
VIN1 = 12 V, IOUT1 = 400 mA
4.75
5.0
0.5
20
5.25
V
V
Dropout voltage
VDROP1 VIN1 = 4.9 V, IOUT1 = 400 mA
1.0
100
150
Line regulation
∆VOLN1 5.6 ≤ VIN1 ≤ 17 V, IOUT1 = 400 mA
∆VOLD1 5 mA ≤ IO ≤ 400 mA, VIN1 = 12 V
mV
mV
mA
mA
µVrms
Load regulation
50
Peak output current
Output shorted current
Output noise voltage
I
OP1
VIN1 = 12 V
400
500
100
70
IOSC1
VIN1 = 12 V
400
VN1
10 Hz ≤ f ≤ 100 kHz
Output voltage temperature
coefficient
∆VO/∆Tal Tj = 25 to 125°C
1.6
60
mV/°C
Ripple rejection
Rref1
ENH1
ENL1
f = 120 Hz, 6 V ≤VIN1 ≤ 17 V
dB
V
Output on control voltage
Output off control voltage
Low-level output voltage
[Reset Block] VIN1 = VIN2 = 12 V
High reset output voltage
Low reset output voltage
Reset threshold voltage
Reset hysteresis voltage
Reset output delay time
V
VIN1 = 12 V
VIN1 = 12 V
2.6
V
1.0
0.3
V
V
O OFF1 VIN1 = 12 V
V
VORH
VORL
VRT
IORH = 200 µA, Cd pin open
4.73
4.98
100
4.2
5.23
200
V
ISRL = 2 mA, with Cd shorted to GND
mV
V
3.95
40
4.45
200
Vhys
td
100
10
mV
ms
Cd = 0.1 µF
7.5
12.5
[7.0-V Power Supply Block] VIN1 = VIN2, COUT2 = 47 µF
Output voltage
V
OUT2
VIN2 = 12 V, IOUT2 = 1 A
6.5
7.0
1.0
7.5
2.0
V
V
Dropout voltage
VDROP2 VIN2 = 6.5 V, IOUT2 = 1 A
Line regulation
∆VOLN2 9.0 ≤ VIN2 ≤ 17 V, IOUT2 = 1 A
∆VOLD2 5 mA ≤ IO ≤ 1.0 A, VIN2 = 12 V
200
300
mV
mV
A
Load regulation
Peak output current
Output shorted current
Ripple rejection
I
OP2
OSC2
Rref2
ENH2
ENL2
VIN2 = 12 V
1.0
2.6
I
VIN2 = 12 V
500
50
mA
dB
V
f = 120 Hz, 9.0 V ≤ VIN2 ≤ 17 V
VIN2 = 12 V
Output on control voltage
Output off control voltage
Low-level output voltage
V
V
VIN2 = 12 V
1.0
0.3
V
V
O OFF2 VIN2 = 12 V
V
No. 5286-2/5
LA5616
Pin Assignment
Equivalent Circuit Block Diagram
Test Circuit Diagram
No. 5286-3/5
LA5616
Application Circuit Example
Note: 1. The capacitors Cn and C
are only needed when external noise is a problem.
RES
If these capacitors are used, then capacitor Co must have a value at least 1/3 that of capacitor C .
IN
A certain amount of noise may occur when V goes off due to differences in discharge timings between the
IN
capacitors.
2. A capacitor with a low temperature dependence must be used for the delay capacitor Cd.
3. The minimum value for the output capacitor Co is 47 µF.
4. The input voltages must obey the relationship V 1 ≤ V 2, and must be brought up at the same time.
IN
IN
Function Table
EN1, EN2
VO1
L
L
H
H
Note: Open is also possible for the VEN1 = VEN2 = high state.
(EN1, EN2 is independent.)
Enable Input Equivalent Circuit
No. 5286-4/5
LA5616
Reset Operation
■ No products described or contained herein are intended for use in surgical implants, life-support systems, aerospace
equipment, nuclear power control systems, vehicles, disaster/crime-prevention equipment and the like, the failure of
which may directly or indirectly cause injury, death or property loss.
■ Anyone purchasing any products described or contained herein for an above-mentioned use shall:
➀ Accept full responsibility and indemnify and defend SANYO ELECTRIC CO., LTD., its affiliates, subsidiaries and
distributors and all their officers and employees, jointly and severally, against any and all claims and litigation and all
damages, cost and expenses associated with such use:
➁ Not impose any responsibility for any fault or negligence which may be cited in any such claim or litigation on
SANYO ELECTRIC CO., LTD., its affiliates, subsidiaries and distributors or any of their officers and employees
jointly or severally.
■ 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 December, 1997. Specifications and information herein are subject to
change without notice.
No. 5286-5/5
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