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PDF LV56841PVD Data sheet ( Hoja de datos )
| Número de pieza | LV56841PVD | |
| Descripción | Multi-Power Supply IC | |
| Fabricantes | ON Semiconductor | |
| Logotipo |  |
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Ordering number : ENA2181A
LV56841PVD
Bi-CDMOS LSI
For Car Audio Systems
Multi-Power Supply IC
http://onsemi.com
Overview
The LV56841PVD is a power supply IC suitable for CD receiver system for car audio system.
This IC integrates 5 systems of regulator output, 2 systems of high side power switch, over-current protector,
overvoltage protector and over-heat protector .
Supply for SW33V outputs is low voltage specification, which enables drastic reduction of power dissipation compared
to the existing model. (the package is HZIP15).
Function
• Low consumption current: 50μA (typ, only VDD output is in operation)
•5 systems of regulator output
VDD for microcontroller: output voltage: 3.3V, maximum output current: 350mA
Reverse current protection implemented.
For system: output voltage: 3.3V, maximum output current: 350mA
For audio: output voltage: 5 to 12V (set by external resistors), maximum output current: 300mA
For illumination: output voltage: 5 to 12V (set by external resistors), maximum output current: 300mA
For CD: output voltage: 6V, maximum output current: 1500mA
• 2 lines of high side switch with interlock VCC
EXT: Maximum output current: 500mA, voltage difference between input and output: 0.75V
ANT: Maximum output current: 300mA, voltage difference between input and output: 0.5V
• Supply input
V6IN: 6V for system (SW33V)
VCC1: For internal reference voltage, control circuits, and VDD output.
VCC2: For AUDIO, illumination, CD, EXT/ANT
• Over-current protector
• Overvoltage protector(OVP): VCC1,VCC2 Typ 21V (All outputs except VDD are turned off)
Overvoltage shutdown(OVS): V6IN Typ 21V (All outputs except VDD are turned off)
• Overheat protector: Typ 175°C
• Pch-LDMOS is used in power output block
(Warning) The protector functions only improve the IC’s tolerance and they do not guarantee the safety of the IC if used under the
conditions out of safety range or ratings. Use of the IC such as use under over-current protection range, thermal shutdown state or V6IN
OVS condition may degrade the IC’s reliability and eventually damage the IC.
HZIP15
ORDERING INFORMATION
See detailed ordering and shipping information on page 15 of this data sheet.
Semiconductor Components Industries, LLC, 2014
August, 2014
82214NK 20140811-S00027/42413NK 20130401-S00001 No.A2181-1/15
1 page  
CTRL logic truth table
CTRL1
H
M2
M1
L
ANT
ON
ON
OFF
OFF
ILM
ON
OFF
ON
OFF
LV56841PVD
EXT
ON
ON
ON
OFF
CTRL2
H
M2
M1
L
AUDIO
ON
OFF
OFF
OFF
SW33V
ON
ON
OFF
OFF
CD
ON
ON
ON
OFF
(Warning) Usage of CTRL pin
When CTRL pin transits between L and M2, since it passes M1, ILM is turned on for a moment. Likewise, when CTRL pin transits between H and M1, since it
passes M2, ILM is turned off for a moment.
To avoid operation failure by the above factors, please refer (1) and (2) as shown below for precaution.dd
z Do not connect parasitic capacitor to CTRL as much as possible.
z If use of capacitor for CTRL is required, keep the resistance value as low as possible.
z Make sure that the output load capacitor has enough margin against the voltage fluctuation due to instantaneous ON/OFF.
(1) The time until a reaction occurs in output after from CTLR ON to OFF (typ)
OFF→ON time
CTRL1→ILM
27°C
6.0μsec
Due to quality fluctuation of ICs in manufacturing process, the above-mentioned time can be shorted by 10 to 20%.
(2)The time until output starts to react shifting from CTRL ON→OFF control :
ON→OFF time
CTRL1→ILM
27°C
2.3μsec
CTRL1/2 voltage range and threshold
5.5V
2.9V
2.5V
1.9V
1.4V
0.8V
0.5V
0V
H
2.65V (typ)
M2
1.65V (typ)
M1
0.65V (typ)
L
μCOM port
INAMP
2.2k
INANT
3.9k
CTRL1
400k
No.A2181-5/15
5 Page 
Continued from preceding page.
Pin No. Pin name
Description
15 EXT
EXT output
When CTRL1 = M1, M2, H,
EXT is ON
VCC-0.5V/500mA
LV56841PVD
7
15
10
Equivalent Circuit
100kΩ
VCC2
5kΩ
GND
No.A2181-11/15
11 Page | ||
| Páginas | Total 15 Páginas | |
| PDF Descargar | [ Datasheet LV56841PVD.PDF ] | |
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