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PDF LV56801P Data sheet ( Hoja de datos )
| Número de pieza | LV56801P | |
| Descripción | Multi-Power Supply System IC | |
| Fabricantes | ON Semiconductor | |
| Logotipo |  |
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Hay una vista previa y un enlace de descarga de LV56801P (archivo pdf) en la parte inferior de esta página. Total 14 Páginas | ||
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Ordering number : ENA1901A
LV56801P
Monolithic Linear IC
Multi-Power Supply System IC
for Car Audio Systems
http://onsemi.com
Overview
The LV56801P is a multi-power supply system IC that provides four regulator outputs and two high side switches as
well as a number of protection functions including overcurrent protection, overvoltage protection and overheat
protection. It is an optimal power supply IC for car audio and car entertainment systems and similar products.
Features
• Four regulator output systems
For microcontroller: 3.3V output voltage, 200mA maximum output current
For CD drive: 8.0V output voltage, 1300mA maximum output current
For illumination: 8 to 12V output voltage (output can be set with external resistors), 300mA maximum output
current
For audio systems: 8 to 9V output voltage (output voltage can be set with external resistors), 300mA maximum
output current
• Two VCC-linked high side switch systems
EXT: 350mA maximum output current, 0.5V voltage difference between input and output.
ANT: 300mA maximum output current, 0.5V voltage difference between input and output.
• Two VDD 3.3V-linked high side switch systems
SW5V: 200mA maximum output current, 0.25V voltage difference between input and output.
ACC (accessory voltage detection output): 100mA maximum output current, 0.25V voltage difference between
input and output.
• Overcurrent protection function
• Overvoltage protection function, typ 21V (excluding VDD 3.3V output)
• Overheat protection function, typ 175ºC
• On-chip accessory voltage detection circuit
• P-channel LDMOS used for power output block
CAUTION)
The protection functions are provided in order to improve the ability of the ICs to withstand breakdown, and they are not intended to guarantee
safety when used under conditions outside the safe operating area or rated operating conditions.
Use of the ICs under any conditions exceeding the safe operating area or above the IOmax, and especially use in overcurrent protection areas or
under conditions in which they are subject to thermal protection, may reduce their reliability and result in permanent breakdown.
Semiconductor Components Industries, LLC, 2013
August, 2013
O2611 SY 20111014-S00003/D2210 SY 20101201-S00007 No.A1901-1/14
1 page  
Block Diagram
LV56801P
VCC
+B +
7
C1 C2
Over
Voltage
Protection
Start
up
Vref
CTRL1
8
(four-value control)
CTRL2
6
(three-value control)
OUTPUT
Control
EXT
out
ANT
out
-
+
-
+
-
+
Remote EXT (VCC-0.5V)
D1 350mA
15 +
C3 D2
ANT Remote (VCC-0.5V)
D3 300mA
14 +
C4 D4
ILM output (8V to 12V)
300mA
1+
R1 C5 C6
2
ILM_F
AUDIO output (8V to 9V)
300mA
5+
R2 C7 C8
4 AUDIO_F
R3
CD output (8V)
1300mA
3+
C9 C10
GND
9
Thermal
Shut Down
ACC
10
+
-
Output Current Limit Circuit
Pin Function
Pin No. Pin name
1 ILM
Description
ILM output pin
ON when CTRL1 = M1, M2, H
12.0V/300mA
2 ILM_F
ILM output voltage adjustment pin
-
+
VDD output (3.3V)
200mA
12 +
C11 C12
SW output (3.3V)
13
200mA
ACC output (3.3V)
11
100mA
Equivalent Circuit
7 VCC
1
59.67kΩ
2
7kΩ
9
GND
Continued on next page.
No.A1901-5/14
5 Page 
• CTRL1 Application Circuit Example
R1
A
R2
B
CTRL1
500kΩ
LV56801P
(1) 3.3V input: R1 = 4.7kΩ, R2 = 10kΩ
AB
CTRL1
0V 0V
0V
0V 3.3V
1.05V
3.3V
0V
2.23V
3.3V
3.3V
3.20V
• CTRL2 Application Circuit Example
R3
C
R4
D
CTRL2
500kΩ
(1) 3.3V input: R3 = R4 = 4.7kΩ
AB
CTRL2
0V 0V
0V
0V 3.3V
1.61V
3.3V
0V
1.61V
3.3V
3.3V
3.29V
Caution for implementing LV56801P to a system board
In HZIP15J, the package used in this IC, there are several metal exposure other than the connection pins and heat-sinks as shown in
the following diagrams. In the diagrams, the electric potential of 2 and 3 are the same as Pin15 and Pin1, respectively. 2 (=Pin15) is
EXT pin and 3 (=Pin1) is ILM output (regulator). When the IC is implemented to the system, make sure that no attachment clamp
touches the exposed Pin1/ Pin15. When the exposed Pin1/ Pin15 touch the attachment clamp (same electrical potential as GND), ILM
output or VCC enter the same state as time when GND was shorted. The electric potential of the exposed metal connected to heat-sinks
1 is the same as that of sub board of the IC (GND). Therefore, even if the exposed metal and GND of the system board are adjacent to
each other, there should be no problem.
• HZIP15J external view
1
Heat-sink
Same potential
2
15PIN
Same potential
3
1PIN
Same potential
1
Heat-sink
Same potential
Heat-sink side
<Top view of HZIP15J>
:Metal exposure
Heat-sink side
1
Heat-sink
Same potential
:Metal exposure
<Side view of HZIP15J>
No.A1901-11/14
11 Page | ||
| Páginas | Total 14 Páginas | |
| PDF Descargar | [ Datasheet LV56801P.PDF ] | |
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