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PDF LA5605 Data sheet ( Hoja de datos )
| Número de pieza | LA5605 | |
| Descripción | Monolithic Linear IC | |
| Fabricantes | Sanyo Semicon Device | |
| Logotipo |  |
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Ordering number : EN4459B
LA5605
Monolithic Linear IC
For CD Radio Cassette Recorders
Power Supply System
Overview
The LA5605 is an AC/DC power supply IC that incorporates a 7.5V/500mA low saturation regulator and a number of
control functions. It is optimal for use as the power supply IC for CD radio cassette recorders and other applications.
Features
• Facilitates designing the AC/DC power supply system for CD radio cassette recorders.
• A wide variety of control circuits incorporated, which realizes further miniaturization in electronic products.
• The adoption of a low-saturation regulator circuit reduces internal power dissipation.
Functions
• Power supply system for CD radio cassette recorders
• For small electronic products
• Low saturation regulator (7.5V/500mA)
• Limiter power supply (9V/60mA)
Specifications
Absolute Maximum Ratings at Ta = 25°C
Parameter
Symbol
Input voltage
VREF pin voltage
Power Control pin voltage
Mute pin voltage
Remote controller standby pin voltage
AC standby pin voltage
Allowable power dissipation
VCC max
VREF max
VCONT max
VMUTE max
VREMO max
VAC max
Pd max
Operating temperature
Topr
Storage temperature
Tstg
Conditions
Ratings
24
6
6
6
6
6
2.0
-20 to +80
-55 to +150
Unit
V
V
V
V
V
V
W
°C
°C
Any and all SANYO Semiconductor Co.,Ltd. products described or contained herein are, with regard to
"standard application", intended for the use as general electronics equipment (home appliances, AV equipment,
communication device, office equipment, industrial equipment etc.). The products mentioned herein shall not be
intended for use for any "special application" (medical equipment whose purpose is to sustain life, aerospace
instrument, nuclear control device, burning appliances, transportation machine, traffic signal system, safety
equipment etc.) that shall require extremely high level of reliability and can directly threaten human lives in case
of failure or malfunction of the product or may cause harm to human bodies, nor shall they grant any guarantee
thereof. If you should intend to use our products for applications outside the standard applications of our
customer who is considering such use and/or outside the scope of our intended standard applications, please
consult with us prior to the intended use. If there is no consultation or inquiry before the intended use, our
customer shall be solely responsible for the use.
Specifications of any and all SANYO Semiconductor Co.,Ltd. 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.
Downloaded from Elcodis.com electronic components distributor
70407 MS PC A8-9382 No.4459-1/6
1 page  
Pin Functions
Pin No.
Symbol
1 9V Limitter
LA5605
Description
•Used with an external CMOS regulator
to make up a backup power supply.
•Blocks current from flowing into the IC
when VCC is turned off.
Remarks
Equivalent Circuit
12
1
2 Swutched REF •Transistor switch that conducts current •For controlling external
when Power CONT is set high.
transistors.
2
1kΩ
3 Power CONT •7.5V regulator and Switched REF
output control (high active)
•On/off control of this pin is enabled
when predefined voltage is
present at the VCC and REF 5V
pins.
4
40kΩ
3
40kΩ
20kΩ
4 REF 5V
•Power source for the on/off and remote •Supplied from the backup power
controller STBY circuits
supply
5 PWR DET IN •Input pin for detecting the source
•VCC (DET) = Vref (1+
R2
R1
)
voltage
•Vref ≈ 1.2V
•The threshold level is determined by
external resistors.
VCC
R1
5
R2
Vref
6 PWR DET
•Supply voltage detection output
6
7 AC STBY
•AC power monitoring input
8 MUTE OUT
•Independent transistor switch (output) •Used for mute operation, etc.
9 MUTE IN
•Independent transistor switch (input)
10 GND
•Lowest voltage level of this IC
11
Remocon STBY •Used to control the remote controller
•Stops function of the remote
power supply via the Power DET and
controller when voltage drops.
AC STBY pins.
PWR
DET
7
4.7kΩ
20kΩ
1.5kΩ
9
50kΩ
1kΩ
8
7.5kΩ
4
11
12 VCC
13 7.5V
•External power supply input pin
•7.5V low saturation regulator output
•On/off of this pin is controlled by Power
CONT.
12
13
Downloaded from Elcodis.com electronic components distributor
No.4459-5/6
5 Page | ||
| Páginas | Total 6 Páginas | |
| PDF Descargar | [ Datasheet LA5605.PDF ] | |
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