LV5680P Linear Voltage Regulator IC Application Note

LV5680P
Multi Voltage Regulator IC
Application Note
Overview
The LV5680P is a multiple voltage regulator for car audio system. This IC has 4 voltage regulators and 2
high-side switches.
The following protection circuits are integrated: over current limiter, overvoltage protection and Thermal Shut
Down. This IC is most suitable Car Audio.
Features

4 LDO regulators
・
For VDD:
Vout is 5.0V, Iomax is 200mA
・
For CD:
Vout is 8.0V, Iomax is 1300mA
・
For Illumination:
Vout is 8V to 12V(Adjustable external resistors),
・
For Audio:
Iomax is 300mA
Vout is 8V to 9V(Adjustable external resistors),
Iomax is 300mA

2 High-side Switches
EXT:Voltage difference between input and output is 0.5V, Iomax is 350mA
ANT:Voltage difference between input and output is 0.5V, Iomax is 300mA

2 Switches connected to “VDD”
SW5V:Voltage difference between “VDD” and output is 0.2V, Iomax is 200mA
ACC(Accessory Voltage Detector output):Voltage difference between “VDD” and output is 0.2V,
Iomax is 100mA

Over Current Limiting

Overvoltage Protection (Without VDD-OUT)

Thermal Shut Down

ACC voltage detector

Maximum surge peak Voltage is 50V

Low thermal resistance package “HZIP15J”(θjc=2℃/W)
*Detection voltage is 21V(typical)
*175℃(typical)
(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 overcurrent protection range or
thermal shutdown state may degrade the IC’s reliability and eventually damage the IC.
LV5680P Application Note
Package Dimensions
unit : mm(typical)
Fig1. Package Dimensions of HZIP15J
Fig2. Allowable Power Dissipation Derating Curve
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LV5680P Application Note
Pin Assignment
LV5680
T
15pin
ILM
ILM_F
CD
AUDIO_F
M
AUDIO
F
CTRL2
D
VCC
F CTRL1
O GND
2 ACC
C
ACC5V
1
VDD5V
D
SW5V
C
ANT
V EXT
V
V
1pin
Fig3. Pin Assignment
Block Diagram
Vcc
+B
+
C1
7
C2
EXT
out
Over
Voltage
Protector
ANT
out
Start
up
REMOTE EXT(VCC-0.5 V)
D1 350mA
15
+
D2
C3
ANT REMOTE (VCC-0.5 V)
300mA
D3
14
+
D4
C4
-
Vref
+
ILM OUT(8-12V)
300mA
1
+
C6
R1
C7
2
ILM_F
AUDIO OUT(8-9V)
300mA
CTRL1
+
8
5
R2
OUTPUT
CTRL2
6
4
Contorol
+
-
GND
+
Thermal
Shut Down
CD OUT(8V)
1300mA
3
+
C11
C12
VDD OUT(5.0V)
200mA
12
+
C13
C14
Output Current limit Circuit
SW OUT(5V)
13
ACC
10
C10
AUDIO_F
R3
-
9
+
C9
+
-
200mA
ACC OUT(5V)
11
100mA
Fig4. Block Diagram of LV5680P
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LV5680P Application Note
Specifications
Absolute Maximum Ratings at Ta=25 ºC
Parameter
Symbol
Power supply voltage
Conditions
Vcc max
Without heat sink
Power dissipation
Pd max
Peak voltage
Ta≦25 ºC
Ratings
Unit
36
V
1.5
At using Al heat sink(*1)
5.6
At heat sink of infinite area
32.5
Vcc peak Regarding Bias wave, refer to below the pulse.
W
50
V
Operating temperature
Topr
-40 to +85
℃
Storage temperature
Tstg
-55 to +150
℃
Junction temperature
Tjmax
150
℃
*1:When the Aluminum heat sink(50mm×50mm×1.5mm) is used
・Peak Voltage testing pulse wave
50V
90%
10%
16V
5msec
100msec
Fig5. Peak Voltage testing pulse wave
Allowable Operating Range at Ta=25 ºC
Parameter
Power supply voltage range1
Power supply voltage range2
Power supply voltage range3
Power supply voltage range4
Conditions
Range
Unit
VDD output, SW output, ACC output
7.5 to 16
V
ILM output at 10V
12 to 16
V
ILM output at 8V
10 to 16
V
AUDIO output at 9V
10 to 16
V
CD output(CD output current =1.3A)
10.5 to 16
V
CD output(CD output current ≦1A)
10 to 16
V
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LV5680P Application Note
Electrical Characteristics at Ta=25 ºC, Vcc=14.4V (*2)
Parameter
Quiescent Current
Symbol
Icc
Conditions
Min
Typ
Max
400
VDD No Load,CTRL1/2=「L/L」,ACC=0V
Unit
800
μA
0.5
V
CTRL1 Input
“L” Input voltage
VIL1
0
“M1” Input voltage VIM11
0.8
1.1
1.4
V
“M2” Input voltage VIM21
1.9
2.2
2.5
V
“H” Input voltage
VIH1
2.9
3.3
5.5
V
Input impedance
RIN1
350
500
650
kΩ
“L” Input voltage
VIL2
0
0.5
V
“M” Input voltage
VIM2
1.1
1.65
2.1
V
“H” Input voltage
VIH2
2.5
3.3
5.5
V
Input impedance
RIN2
350
500
650
kΩ
CTRL2 Input
VDD5V output (*3)
VDD5V supplies a current to SW5V and ACC5V
Output voltage1
Vo1
Io1= 200 mA, Io7,Io8=0A
4.75
5.0
5.25
V
Output voltage2
Vo1’
Io1=200mA, Io7=200mA, Io8=100mA
4.75
5.0
5.25
V
Output total current Ito1
Vo1≧4.75V, Ito1=Io1+Io7+Io8
500
mA
Line regulation
⊿VoLN1 7.5V<Vcc<16 V, Io1= 200 mA(*4)
30
90
mV
Load regulation
⊿VoLD1 1 mA<Io1<200 mA(*4)
70
150
mV
Dropout voltage 1
VDROP1
Io1= 200 mA(*4)
1.0
1.5
V
Dropout voltage 2
VDROP1’
Io1= 100 mA(*4)
0.7
1.05
V
Dropout voltage 3
VDROP1’’ Io1+Io7+Io8= 500 mA
2.5
3.75
V
Ripple rejection
RREJ1
f=120Hz, Io1= 200 mA(*4)
40
50
Io2= 1000 mA
7.6
8.0
dB
CD-ON;CTRL2=“H”
Output voltage
Vo2
Output current capacity Io2
Vo2≧7.6V
8.4
1300
Line regulation
⊿VoLN2 10.5V<Vcc<16V, Io2=1000mA
Load regulation
V
mA
50
100
mV
⊿VoLD2 10 mA<Io2<1000 mA
100
200
mV
Dropout voltage1
VDROP2
Io2= 1000 mA
1.0
1.5
V
Dropout voltage2
VDROP2’
Io2= 500 mA
0.5
0.75
V
Ripple rejection
RREJ2
f=120Hz ,Io2= 1000 mA
40
50
1.260
dB
AUDIO (8-9V) -ON;CTRL2=“M”&“H”
AUDIO_F voltage
VI3
1.222
AUDIO_F current
IIN3
-1
1.298
V
1
μA
AUDIO output voltage1 Vo3
Io3= 200 mA, R2=30kΩ,R3=5.6kΩ (*5)
7.65
8.0
8.35
V
AUDIO output voltage2 Vo3’
Io3= 200 mA, R2=27kΩ,R3=4.7kΩ (*5)
8.13
8.5
8.87
V
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LV5680P Application Note
Parameter
Symbol
Conditions
Min
Typ
Max
Unit
AUDIO (8-9V) -ON;CTRL2=“M”&“H”
AUDIO output voltage3 Vo3’ ’
Io3= 200 mA, R2=24kΩ,R3=3.9kΩ(*5)
Output current capacity Io3
8.6
9.0
9.4
300
V
mA
Line regulation
⊿VoLN3 10V<Vcc<16 V, Io3= 200 mA
30
90
mV
Load regulation
⊿VoLD3 1 mA<Io3<200 mA
70
150
mV
Dropout voltage1
VDROP3
Io3= 200 mA
0.3
0.45
V
Dropout voltage2
VDROP3’
Io3= 100 mA
0.15
0.23
V
Ripple rejection
RREJ3
f=120Hz, Io3= 200 mA
40
50
dB
1.222
1.260
1.298
V
11.4
12.0
12.6
V
ILM (8-12V) -ON;CTRL1=“M1”,“M2”&“H”
ILM_F voltage
VI4
ILM output voltage1 Vo4
Io4= 200 mA
ILM output voltage2 Vo4’
Io4= 200 mA、R1=270kΩ(*6)
8.5
10.0
11.5
V
ILM output voltage3 Vo4’ ’
Io4= 200 mA、R1=100kΩ(*6)
6.8
8.0
9.2
V
Output current capacity Io4
R1 =270kΩ
300
mA
Line regulation
⊿VoLN4 12V<Vcc<16V, Io4=200mA,R1=270kΩ
30
90
mV
Load regulation
⊿VoLD4 1 mA<Vo4<200,mA
70
150
mV
Dropout voltage1
VDROP4
Io4= 200 mA
0.7
1.05
V
Dropout voltage2
VDROP4’
Io4= 100 mA
0.35
0.53
V
Ripple rejection
RREJ4
f=120Hz ,Io4= 200 mA
40
50
dB
Vcc-1.0 Vcc-0.5
V
REMOTE(EXT)-ON;CTRL1=“M2”&“H”
Output voltage
Vo5
Output current capacity Io5
Io5= 350 mA
Vo5≧Vcc-1.0
350
mA
ANT Remote-ON;CTRL1=“H”
Output voltage
Vo6
Output current capacity Io6
Io6= 300 mA
Vo6≧Vcc-1.0
Vcc-1.0 Vcc-0.5
V
300
mA
SW5V output;CTRL2=“M”&“H”
Output voltage1
Vo7
Io7= 1 mA, Io1,Io8= 0A(*7)
Vo1-0.25
Vo1
V
Output voltage2
Vo7’
Io7= 200 mA,Io1,Io8= 0A(*7)
Vo1-0.45 Vo1-0.2
V
Output current capacity Io7
200
Vo7≧4.55
mA
ACC Detector;Vout=5V coupled ACC
ACC detection voltage VTH8
2.8
3.0
3.2
V
Hysteresis
VHIS8
0.2
0.3
0.4
V
Input impedance
ZI8
Included Pull-down resistor
42
60
78
kΩ
ACC Vout1
Vo8
Io8= 0.5 mA,Io1,Io7= 0A(*7)
Vo1-0.25
Vo1
V
ACC Vout2
Vo8’
Io8= 100 mA,Io1,Io7= 0A(*7)
Vo1-0.45 Vo1-0.2
V
Output current capacity Io8
100
Vo8≧4.55
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mA
LV5680P Application Note
*2:The entire specification has been defined based on the tests performed under the conditions where
Tj and Ta(=25℃) are almost equal. There tests were performed with pulse load to minimize the increase
of junction temperature (Tj).
*3:The VDD5V output supplies the output currents of SW5V and ACC5V. Therefore, the current supply
capability of the VDD5V output and its other electrical characteristics are affected by the output statuses
of SW5V and ACC5V.
*4:SW5V and ACC5V outputs have no load.
*5:When a resistor tolerance ±1% is used.
<Reference> When a resistor tolerance ±0.5% is used, Vo3’ ’ is 8.67V≦9.0V≦9.33V.
*6:When a resistor tolerance ±1% is used. The absolute accuracy of the internal resistance is ±15%.
*7:Since the "SW5V" and "ACC5V" are output from "VDD5V" through the switch, each output voltage
drops by an amount equivalent to the ON resistance of the switch.
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LV5680P Application Note
True Table of CTRL
CTRL1
ANT
EXT
ILM
CTRL2
CD
AUDIO
SW5
L
OFF
OFF
OFF
L
OFF
OFF
OFF
M1
OFF
OFF
ON
M
OFF
ON
ON
M2
OFF
ON
ON
H
ON
ON
ON
H
ON
ON
ON
Timing Chart
21V
VCC
(7PIN)
VDD5V OUT
(12PIN)
CTRL1
(8PIN)
CTRL2
(6PIN)
CD OUT
(3PIN)
AUDIO OUT
(5PIN)
ILM OUT
I (1PIN)
L
EXT OUT
M
(15PIN)
ANT OUT
(14PIN)
SW5V OUT
(13PIN)
ACC IN
(10PIN)
3.0V
2.7V
ACC OUT
(11PIN)
Fig6. Timing Chart
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LV5680P Application Note
Main Characteristics
5.25
5
VDD5V(12PIN) Output Voltage[V]
VDD5V(12PIN) Output Voltage[V]
6
4
3
Ta=-40℃
2
Ta=25℃
Ta=85℃
1
5.20
VCC=14.4V
5.15
VCC=7.5V
5.10
VCC=16V
5.05
5.00
4.95
4.90
4.85
Iout = 200 mA
4.80
4.75
0
0
10
20
-50
30
Fig7. [VDD] Vo vs. Input Voltage
100
Fig8. [VDD] Vo vs. Ta
6
6
VCC=14.4V
Iomax
5
4
3
2
Ta=-40℃
Ta=25℃
Ta=85℃
SPEC
1
VCC=7.5V
Iomax
VDD5V(12PIN) Output Voltage[V]
VDD5V(12PIN) Output Voltage[V]
50
Ambient Temperature Ta[℃]
Input Voltage(VCC)[V]
0
5
4
3
Ta=-40℃
2
Ta=25℃
Ta=85℃
SPEC
1
0
0
0.2
0.4
0.6
0.8
1
0
0.2
VDD5V(12PIN) Output Current[A]
0.6
0.8
1
Fig10. [VDD] Vo vs. Io@VCC=7.5V
6
80
VCC=16V
Iomax
0.4
VDD5V(12PIN) Output Current[A]
Fig9. [VDD] Vo vs. Io@VCC=14.4V
70
5
VDD5V Ripple Rejection[dB]
VDD5V(12PIN) Output Voltage[V]
0
4
3
Ta=-40℃
Ta=25℃
Ta=85℃
SPEC
2
1
60
50
40
30
VCC=14.4V
frip=120Hz
Vrip=1.0Vpp
20
10
Io=200mA
0
0
0
0.2
0.4
0.6
0.8
1
-50
VDD5V(12PIN) Output Current[A]
0
50
Ambient Temperature Ta[℃]
Fig11. [VDD] Vo vs. Io@VCC=16V
Fig12. [VDD] Ripple Rejection vs. Ta
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9
100
9
8.40
8
8.30
CD(3PIN) Output Voltage[V]
CD(3PIN) Output Voltage[V]
LV5680P Application Note
7
6
5
4
Ta=-40℃
3
Ta=25℃
2
Iout = 1A
8.20
8.10
8.00
7.90
VCC=14.4V
7.80
VCC=10.5V
Ta=85℃
7.70
VCC=16V
1
7.60
0
0
10
20
30
-50
40
100
Fig14. [CD] Vo vs. Ta
Fig13. [CD] Vo vs. Input Voltage
9
9
Iomax
Iomax
8
8
7
7
6
CD(3PIN) Output Voltage[V]
CD(3PIN) Output Voltage[V]
50
Ambient Temperature Ta[℃]
Supply Voltage(VCC)[V]
VCC=14.4V
5
4
3
Ta=-40℃
Ta=25℃
Ta=85℃
SPEC
2
1
0
0.5
1
1.5
2
VCC=10.5V
6
5
4
3
Ta=-40℃
Ta=25℃
Ta=85℃
SPEC
2
1
0
0
0
2.5
0.5
1
1.5
2
2.5
CD(3PIN) Output Current[A]
CD(3PIN) Output Current[A]
Fig15. [CD] Vo vs. Io@VCC=14.4V
Fig16. [CD] Vo vs. Io@VCC=10.5V
9
80
Iomax
8
70
7
VCC=16V
6
5
4
3
Ta=-40℃
Ta=25℃
Ta=85℃
SPEC
2
1
CD Ripple Rejection[dB]
CD(3PIN) Output Voltage[V]
0
60
50
40
30
VCC=14.4V
frip=120Hz
Vrip=1.0Vpp
20
10
Io=1A
0
0
0
0.5
1
1.5
2
2.5
-50
0
50
Ambient Temperature Ta[℃]
CD(3PIN) Output Current[A]
Fig17. [CD] Vo vs. Io@VCC=16V
Fig18. [CD] Ripple Rejection vs. Ta
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100
LV5680P Application Note
12.6
14
1PIN(ILM)-2PIN(ILM_F)="OPEN"
ILM(1PIN) Output Voltage[V]
ILM(1PIN) Output Voltage[V]
12
10
8
Ta=-40℃
6
Ta=25℃
Ta=85℃
4
VCC=14.4V
12.4
VCC=13V
12.2
VCC=16V
12.0
11.8
Iout = 200mA
11.6
2
11.4
0
0
10
20
30
-50
40
100
Fig20. [ILM(12V)] Vo vs. Ta
Fig19. [ILM(12V)] Vo vs. Input Voltage
14
14
Iomax
Iomax
12
ILM(1PIN) Output Voltage[V]
12
ILM(1PIN) Output Voltage[V]
50
Ambient Temperature Ta[℃]
Supply Voltage(VCC)[V]
10
VCC=14.4V
1-2PIN="OPEN"
8
6
Ta=-40℃
Ta=25℃
Ta=85℃
SPEC
4
2
10
VCC=13V
1-2PIN="OPEN"
8
6
Ta=-40℃
Ta=25℃
Ta=85℃
SPEC
4
2
0
0
0
0.2
0.4
0.6
0.8
1
0
Fig21. [ILM(12V)] Vo vs. Io@VCC=14.4V
Iomax
12
10
VCC=16V
1-2PIN="OPEN"
6
Ta=-40℃
4
Ta=25℃
Ta=85℃
SPEC
2
0
0
0.2
0.4
0.6
0.4
0.6
0.8
Fig22. [ILM(12V)] Vo vs. Io@VCC=13V
14
8
0.2
ILM(1PIN) Output Current[A]
ILM(1PIN) Output Current[A]
ILM(1PIN) Output Voltage[V]
0
0.8
1
ILM(1PIN) Output Current[A]
Fig23. [ILM(12V)] Vo vs. Io@VCC=16V
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1
LV5680P Application Note
9
9
Iomax
1-2PIN=100kΩ
8
ILM(1PIN) Output Voltage[V]
ILM(1PIN) Output Voltage[V]
8
7
6
5
4
Ta=-40℃
Ta=25℃
Ta=85℃
3
2
7
VCC=14.4V
1-2PIN=100kΩ
6
5
4
Ta=-40℃
3
Ta=25℃
2
Ta=85℃
1
1
SPEC
0
0
0
10
20
30
0
40
0.2
Supply Voltage(VCC)[V]
Fig24. [ILM(8V)] Vo vs. Input Voltage
9
8
8
7
7
ILM(1PIN) Output Voltage[V]
ILM(1PIN) Output Voltage[V]
Iomax
VCC=10V
1-2PIN=100kΩ
5
4
3
Ta=-40℃
Ta=25℃
Ta=85℃
SPEC
2
1
0.2
0.4
0.6
6
VCC=16V
1-2PIN=100kΩ
5
4
Ta=-40℃
Ta=25℃
Ta=85℃
SPEC
3
2
0
0.8
1
0
0.2
1-2PIN=100kΩ
ILM Ripple Rejection[dB]
70
60
50
40
30
Io=200mA
0
-50
0
50
0.6
0.8
Fig27. [ILM(8V)] Vo vs. Io@VCC=16V
80
10
0.4
ILM(1PIN) Output Current[A]
Fig26. [ILM(8V)] Vo vs. Io@VCC=10V
VCC=14.4V
frip=120Hz
Vrip=1.0Vpp
1
Iomax
ILM(1PIN) Output Current[A]
20
0.8
1
0
0
0.6
Fig25. [ILM(8V)] Vo vs. Io@VCC=14.4V
9
6
0.4
ILM(1PIN) Output Current[A]
100
Ambient Temperature Ta[℃]
Fig28. [ILM(8V)] Ripple Rejection vs. Ta
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1
LV5680P Application Note
8.6
9
R2/R3=30k/5.6kΩ
7
6
5
Ta=-40℃
4
Ta=25℃
Ta=85℃
3
2
VCC=14.4V
8.4
AUDIO(5PIN) Output Voltage[V]
AUDIO(5PIN) Output Voltage[V]
8
VCC=10V
8.2
VCC=16V
8.0
7.8
Iout = 200mA
7.6
1
7.4
0
0
10
20
30
-50
40
Fig29. [AUDIO(8V)] Vo vs. Input Voltage
100
Fig30. [AUDIO(8V)] Vo vs. Ta
9
9
Iomax
Iomax
8
AUDIO(5PIN) Output Voltage[V]
8
AUDIO(5PIN) Output Voltage[V]
50
Ambient Temperature Ta[℃]
Supply Voltage(VCC)[V]
7
6
VCC=14.4V
R2/R3=30k/5.6kΩ
5
4
3
Ta=-40℃
Ta=25℃
Ta=85℃
SPEC
2
1
7
VCC=10V
R2/R3=30k/5.6kΩ
6
5
4
3
Ta=-40℃
Ta=25℃
Ta=85℃
SPEC
2
1
0
0
0
0.2
0.4
0.6
0.8
0
1
0.2
0.4
0.6
0.8
1
AUDIO(5PIN) Output Current[A]
AUDIO(5PIN) Output Current[A]
Fig31. [AUDIO(8V)] Vo vs. Io@VCC=14.4V
Fig32. [AUDIO(8V)] Vo vs. Io@VCC=10V
9
80
Iomax
8
70
AUDIO Ripple Rejection[dB]
AUDIO(5PIN) Output Voltage[V]
0
7
VCC=16V
R2/R3=30k/5.6kΩ
6
5
4
3
Ta=-40℃
Ta=25℃
Ta=85℃
SPEC
2
1
60
50
40
30
VCC=14.4V
frip=120Hz
Vrip=1.0Vpp
20
10
Io=200mA
0
0
0
0.2
0.4
0.6
0.8
1
-50
AUDIO(5PIN) Output Current[A]
0
50
100
Ambient Temperature Ta[℃]
Fig33. [AUDIO(8V)] Vo vs. Io@VCC=16V
Fig34. [AUDIO(8V)] Ripple Rejection vs. Ta
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LV5680P Application Note
10
10
R2/R3=24k/3.9kΩ
AUDIO(5PIN) Output Voltage[V]
AUDIO(5PIN) Output Voltage[V]
9
8
7
6
5
4
Ta=-40℃
3
Ta=25℃
2
Ta=85℃
Iomax
9
8
7
VCC=14.4V
R2/R3=24k/3.9kΩ
6
5
4
Ta=-40℃
Ta=25℃
Ta=85℃
SPEC
3
2
1
1
0
0
0
10
20
30
0
40
0.4
0.6
0.8
1
AUDIO(5PIN) Output Current[A]
Supply Voltage(VCC)[V]
Fig35. [AUDIO(9V)] Vo vs. Input Voltage
Fig36. [AUDIO(9V)] Vo vs. Io@VCC=14.4V
10
10
Iomax
AUDIO(5PIN) Output Voltage[V]
8
VCC=10V
R2/R3=24k/3.9kΩ
7
6
Iomax
9
9
AUDIO(5PIN) Output Voltage[V]
0.2
5
4
3
Ta=-40℃
Ta=25℃
Ta=85℃
SPEC
2
1
8
7
VCC=16V
R2/R3=24k/3.9kΩ
6
5
4
Ta=-40℃
Ta=25℃
Ta=85℃
SPEC
3
2
1
0
0
0
0.2
0.4
0.6
0.8
1
0
0.2
0.4
0.6
0.8
AUDIO(5PIN) Output Current[A]
AUDIO(5PIN) Output Current[A]
Fig37. [AUDIO(9V)] Vo vs. Io@VCC=10V
Fig38. [AUDIO(9V)] Vo vs. Io@VCC=16V
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1
LV5680P Application Note
16
25
VCC=14.4V
EXT(15PIN) Output Voltage[V]
EXT(15PIN) Output Voltage[V]
14
20
15
Ta=-40℃
Ta=25℃
10
Ta=85℃
5
12
Ta=-40℃
10
Ta=25℃
8
Ta=85℃
6
4
2
0
0
0
10
20
30
0
40
0.5
1
1.5
EXT(15PIN) Output Current[A]
Supply Voltage(VCC)[V]
Fig39. [EXT] Vo vs. Input Voltage
Fig40. [EXT] Vo vs. Io@VCC=14.4V
25
16
ANT(14PIN) Output Voltage[V]
ANT(14PIN) Output Voltage[V]
14
20
15
Ta=-40℃
Ta=25℃
10
Ta=85℃
5
12
Ta=-40℃
Ta=25℃
Ta=85℃
10
8
6
4
VCC=14.4V
2
0
0
0
10
20
30
40
0
Supply Voltage(VCC)[V]
0.5
1
ANT(14PIN) Output Current[A]
Fig41. [ANT] Vo vs. Input Voltage
Fig42. [ANT] Vo vs. Io@VCC=14.4V
6
6
5
5
SW5V(13PIN) Output Voltage[V]
SW5V(13PIN) Output Voltage[V]
VCC=14.4V
4
3
Ta=-40℃
Ta=25℃
2
Ta=85℃
1
0
Vout(min)
4
3
2
Ta=-40℃
Ta=25℃
Ta=85℃
SPEC
1
0
0
10
20
30
40
0
Supply Voltage(VCC)[V]
0.2
0.4
0.6
0.8
SW5V(13PIN) Output Current[A]
Fig43. [SW5V] Vo vs. Input Voltage
Fig44. [SW5V] Vo vs. Io@VCC=14.4V
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1
LV5680P Application Note
6
6
VCC=16V
5
SW5V(13PIN) Output Voltage[V]
SW5V(13PIN) Output Voltage[V]
VCC=7.5V
Vout(min)
4
3
2
Ta=-40℃
Ta=25℃
Ta=85℃
SPEC
1
5
Vout(min)
4
3
2
Ta=-40℃
Ta=25℃
Ta=85℃
SPEC
1
0
0
0
0.2
0.4
0.6
0.8
0
1
0.2
Fig45. [SW5V] Vo vs. Io@VCC=7.5V
Figure AUDIO(9V)out Vo vs. Io@VCC=10V
5
4
Ta=-40℃
Ta=25℃
Ta=85℃
3
2
1
0
1
VCC=14.4V
Figure AUDIO(9V)out Vo vs. Io@VCC=16V
5
Vout(min)
4
3
Ta=-40℃
Ta=25℃
Ta=85℃
SPEC
2
1
0
0
10
20
30
Supply Voltage(VCC)[V]
40
0
Fig47. [ACC5V] Vo vs. Input Voltage
0.2
0.4
0.6
0.8
ACC5V(11PIN) Output Current[A]
1
Fig48. [ACC5V] Vo vs. Io@VCC=14.4V
6
6
VCC=16V
ACC5V(11PIN) Output Voltage[V]
VCC=7.5V
5
4
0.8
6
ACC5V(11PIN) Output Voltage[V]
ACC5V(11PIN) Output Voltage[V]
0.6
Fig46. [SW5V] Vo vs. Io@VCC=16V
6
ACC5V(11PIN) Output Voltage[V]
0.4
SW5V(13PIN) Output Current[A]
SW5V(13PIN) Output Current[A]
Vout(min)
3
Ta=-40℃
Ta=25℃
Ta=85℃
SPEC
2
1
5
Vout(min)
4
Ta=-40℃
Ta=25℃
Ta=85℃
SPEC
3
2
1
0
0
0
0.2
0.4
0.6
0.8
ACC5V(11PIN) Output Current[A]
1
0
0.2
0.4
0.6
0.8
ACC5V(11PIN) Output Current[A]
Fig49. [ACC5V] Vo vs. Io@VCC=7.5V
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Fig50. [ACC5V] Vo vs. Io@VCC=16V
1
LV5680P Application Note
Terminal outline
Pin No.
Terminal
Function
Equivalent circuit
ILM OUT
1
ILM
7
at CTRL1=M1,M2,H,
VCC
OUT=ON
12.0V/300mA
1
59.67kΩ
2
2
ILM_F
7kΩ
ILM Feed back
9
GND
7
VCC
CD OUT
3
CD
3
at CTRL2=M,H,
214kΩ
OUT=ON
8.0V/1.3A
40kΩ
4
AUDIO_F
9
GND
7
VCC
AUIDO Feed back
5
AUDIO OUT
5
AUDIO
4
at CTRL2=M,H,
OUT=ON
GND
9
VCC
7
6
CTRL2
CTRL2(Input)
3 input values
6
500kΩ
9
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GND
LV5680P Application Note
Pin No.
Terminal
Function
7
VCC
Power
Equivalent circuit
VCC
7
8
CTRL1
CTRL1(Input)
4 input values
8
500kΩ
GND
9
9
GND
GND
7
10
ACC
Accessory Voltage
VCC
45kΩ
10
detector(input)
15kΩ
GND
9
11
ACC5V
Accessory OUT
VCC
7
At ACC>3V, OUT=ON
12
VDD5V
12
VDD5V OUT
371kΩ
5.0V/200mA
11
13
SW5V OUT
13
SW5V
125kΩ
50kΩ 50kΩ
at CTRL2=M,H,
GND
9
OUT=ON
7
VCC
ANT OUT
14
ANT
at CTRL1=H, OUT=ON
VCC-0.5V/300mA
14
9
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GND
LV5680P Application Note
Pin No.
Terminal
Function
Equivalent circuit
7
VCC
EXT OUT
15
EXT
at CTRL1=M2,H,
OUT=ON
15
VCC-0.5V/350mA
GND
9
A
Input 3.3V:Ra=4.7kΩ,Rb=10kΩ
Ra
CTRL1
B
Rb
500k
A
B
CTRL1
0V
0V
0V
0V
3.3V
1.05V
3.3V
0V
2.23V
3.3V
3.3V
3.20V
Fig51. CTRL1 Application Circuit
Input 3.3V:Rc=Rd=4.7kΩ
C
Rc
CTRL2
D
Rd
500k
C
D
CTRL2
0V
0V
0V
0V
3.3V
1.61V
3.3V
0V
1.61V
3.3V
3.3V
3.29V
Fig52. CTRL2 Application Circuit
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LV5680P Application Note
Board Layout
・Layer 1(Top)
TP1
TP2
TP3
TP4
Fig53. Top Layer
・Layer 2(Bottom)
Fig54. Bottom Layer
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LV5680P Application Note
Application Circuit Example
1
3
5
C12
R3
C7
+
11
EXT
ANT
SW5V
ACC
VDD5V
12
14
13
15
R4
+
C1
+
+
C14
C13
C2
C4
C3
C9
C11
CD
L
9
+
C10
+
+
ILM
CTRL1
7
10
R2
R1
C6
8
ACC5V
6
GND
4
VCC
CTRL2
AUDIO
2
CD
ILM
ILM_F
AUDIO_F
LV5680P
AUDIO
VCC
H
ACC5V
R5
ANT
VDD
ACC
SW5V
EXT
CTRL1
R6
: Board Header(2pins)
R7
CTRL2
TP1 TP2
TP3
TP4
: Board Header (3pins)
+Short Link
3.3V
Fig55. Application Circuit Schematic
Bill of Materials
Reference
Value
Part
Vendor
Comments
C1
100μF/50V
UVR1H101MPD
nichicon
Capacitor, Aluminum Electrolytic
C2,C7,C10,
C12,C14
0.22μF/50V
GRM21BR71H224KA01L
Murata
Capacitor, Ceramic
C3,C4
2.2μF/50V
UVK1H2R2MDD
nichicon
Capacitor, Aluminum Electrolytic
C6,C9,
C11,C13
10μF/25V
UMA1E100MDD/
ECEA1FKS100
nichicon/
Panasonic
Capacitor, Aluminum Electrolytic
R1
270kΩ/0.125W
CRG0805F270K
Tyco
Electronics
Resistor, Thick Film
R2
27kΩ/0.125W
CRG0805F27K
Tyco
Electronics
Resistor, Thick Film
R3,R5,
R6,R7
4.7kΩ/0.125W
CRG0805F4K7
Tyco
Electronics
Resistor, Thick Film
R4
10kΩ/0.125W
CRG0805F10K
Tyco
Electronics
Resistor, Thick Film
BH(3pins)
3pins
W81136T3843RC
RS
Board Header
W8010T50RC
RS
Short Link
M20 9763646
RS
Board Header
ST-4-2
MAC8
Test Point
SL*
BH(2pins)
TP1-TP4
2pins
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LV5680P Application Note
・Setting method of ILM Output Voltage
ILM calculating formula
Z1  R2 // R3 
1
R2
R3
59.67kΩ
1.26V
ILM 
ILM
Z1 
Z1=R2//R3
2
ILM_F
R2  R3
R2  R3
1.26[V ]
 Z 1  1.26[V ]
R1
ILM  1.26 R1
1.26
R3 
R2  Z1
R2  Z1
(Ex.)Setup to ILM=9V
R1
7kΩ
Z1 
ILM_F is equal to bandqap reference
R3 
voltage. (typ=1.26V)
9V  1.26V  7k  43k
1.26V
59.67k  43k
 153.9k  150k
59.67k  43k
When R3=150kΩ, ILM output voltage is
Fig56. ILM feed-back network
 59.67k 150k
Z1 
 42.69k
59.67k  150k
ILM 
1.26V
 42.69k  1.26V  8.94V
7k
・Setting method of AUDIO Output Voltage
AUDIO calculating formula
AUDIO 
5
R1  AUDIO  1.26

R2
1.26
AUDIO
R1
Please design so that the ratio of R1 and R2 may
fill the above-mentioned expression for the set
AUDIO_F
1.26V
1.26[V ]
 R1  1.26[V ]
R2
4
AUDIO voltage.
R2
AUDIO_F is equal to bandqap reference
voltage. (typ=1.26V)
Fig57. AUDIO feed-back network
(Ex.) Setup to AUDIO=8.5V
R1 8.5  1.26

 5.75
R2
1.26
R1 27k

 5.74
R2 4.7k
AUDIO  1.26V  5.74  1.26V  8.49V
*The above-mentioned are all the values at the typical. The error margin of output voltage is caused by the
influence of the manufacturing variations of IC and external resistance.
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LV5680P Application Note
Reference data for selecting output capacitor
VDD5V & ILM STABLE REGION
Output Capacitor ESR[Ω]
100
Stable Condition
・Output Capacitor Value≧1μF
・ESR≦8Ω
*satisfy two requirements .
10
VDD5V & ILM
STABLE REGION
1
0.1
1
10
Output Capacitor Value[μF]
100
Fig58. VDD5V & ILM STABLE REGION
CD & AUDIO STABLE REGION
Output Capacitor ESR[Ω]
100
Stable Condition
・Output Capacitor Value≧1μF
・ESR≦10Ω
*satisfy two requirements .
10
CD & AUDIO
STABLE REGION
1
0.1
1
10
Output Capacitor Value[μF]
100
Fig59. CD & AUDIO STABLE REGION
Make sure that output capacitors is higher than 1uF and meets the condition of ESR, in which voltage/
temperature fluctuation and unit differences are taken into consideration. Moreover, RF characteristics of
electrolytic capacitor should be sufficient.
*The above data is based on the result of the evaluation using our evaluation board under the specified
conditions.
*Oscillation tolerance is influenced by PCB layout, connection, parasitic capacitance and inductance.
Therefore, make sure to use the system that will actually be offered to the market and define a constant
after a sufficient evaluation.
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LV5680P Application Note
Functional Description
The LV5680P is a multiple output voltage
regulator with two power switches, suitable for
use in car audio system.
VCC
This IC has the tolerance value of 50V against
VCC peak surge voltage, but for more safety
set design, adding power clamp, such as
power zenner diode, on battery connected line
is recommended in order to absorb applied
surge.
This IC has no protection against battery
reverse connection, so adding Schottky diode
is recommended to prevent a negative
voltage.
Linear Regulators
All regulators in LV5680P are low dropout
outputs, because the output stage of all
regulators is PLDMOS.
When you select output capacitors for linear
regulators, you should consider three main
characteristics: startup delay, transient
response and loop stability. The capacitor
values and type should be based on cost,
availability, size and temperature constraints.
Tantalum, Aluminum electrolytic, Film, or
Ceramic capacitors are all acceptable
solutions. However, attention must be paid to
ESR constraints. The aluminum electrolytic
capacitor is the least expensive solution, but if
the circuit operates at low temperatures(-25 to
-40 ℃ ), both the value and ESR of the
capacitor will vary considerably. The capacitor
manufacturer's datasheet usually provides
this information.
VDD5V regulator (5.0V, 0.2A)
When VCC is applied, VDD5V output is active
regardless of CTRL states.
VDD5V output supplies the current to SW5V
and ACC5V output. Therefore, the current
supply capability of VDD5V output and its
other electrical characteristics are affected by
the condition of SW5V and ACC5V output.
The over-current limiting circuit of VDD5V,
SW5V, and ACC5V is common. So when the
total output current value of three terminals
reaches the limit value, the over-current
limiting circuit operates.
CD regulator (8.0V, 1.3A)
When CTRL2 is “H”, CD output is active. CD
output has the highest current capability of
four regulators in LV5680P.
AUDIO regulator (8-9V, 0.3A)
When CTRL2 is “M” & “H”, AUDIO output is
active. AUDIO output should set the output
voltage by external resistance. For the setting
method of the voltage, please refer to the
explanation of this application note p.22.
ILM regulator (8-12V, 0.3A)
When CTRL1 is “M1”, “M2” & “H”, ILM output
is active. ILM output voltage can be adjusted
by external resistance between ILM and ILM_F.
If there is no external resistance, ILM output
voltage is 12V by built-in resistance. For the
setting method of the voltage, please refer to
the explanation of this application note p.22.
EXT & ANT high-side switches
The two high-side power switches connected
to VCC are a 350mA output (EXT) and a
300mA output (ANT).
If these outputs are connected to inductive
load or loads which have different ground
potential, diodes (D2 and D4 in Fig.4) are
necessary to protect the device from negative
voltage.
SW5V switch
This high-side switch connected to VDD5V is a
200mA output. When CTRL2 is “M” & “H”,
SW5V output is active. A pull-down resistance
(50kΩ) is connected between SW5V and
GND.
ACC detector circuit
When ACC input voltage is over 3V (typ),
ACC5V output is active. ACC5V output is a
high-side switch connected to VDD5V. A
pull-down resistance (50kΩ) is connected
between ACC5V and GND.
The ACC detection voltage has hysteresis
characteristics, and the hysteresis value is
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LV5680P Application Note
0.3V (typ). The ACC input has a pull-down
resistance, and this resistance value is 60kΩ.
ACC terminal is high-voltage input as well as
VCC terminal.
CTRL1, 2 input
CTRL1 accepts four input values (L/M1/M2/H),
and CTRL2 accepts three input values (L/M/H).
CTRL1 & CTRL2 have a pull-down resistance,
and this resistance value is 500kΩ.
Logic table is shown at p.19.
Protection
Thermal Shutdown
To protect the device from overheating a
thermal shutdown circuit is included. If the
junction temperature reaches approximately
175 ℃ (typ), all outputs are turned off
regardless of CTRL state. Outputs remain
disabled until the junction temperature drops
below 145℃(typ)(automatic restoration).
The thermal shutdown circuit does not
guarantee the protection of the final product
because it operates out of maximum rating
(exceeding Tjmax=150℃).
Current Limiting
When the each output becomes in over load
condition, the device limits the output current.
All outputs are also protected against short
circuit by fold back current limiter.
Overvoltage
The device is protected against load dump.
When VCC voltage exceeds 21V, the device
detects over voltage condition and turns all the
outputs off except VDD to protect the device. If
VCC voltage gets below 21V, outputs are
automatically restored.
.
TEST Procedure
Line regulation
Line regulation is defined as the maximum
change in output voltage as the input voltage
is varied through the specified range. It is
measured by changing the input voltage and
measuring the minimum/maximum voltage of
the output. Line regulation is defined as the
difference between maximum and minimum
voltage.
Load regulation
Load regulation is defined as the maximum
change in output voltage as the load current is
varied through the specified range. It is
measured by changing the load current and
measuring the minimum/maximum voltage of
the output. Load regulation is defined as the
difference between maximum and minimum
voltage.
Dropout voltage
Dropout voltage is defined as the minimum
input-to-output differential voltage at the
specified load current required by the regulator
to keep the output voltage in regulation. It is
measured by reducing input voltage until the
output voltage drops below the nominal value.
Ripple rejection
Ripple rejection is defined as the ratio of input
ripple amplitude versus that of output.
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LV5680P Application Note
LV5680P is used, before the set design, must check the following
1. Absolute Maximum Rating (Common notes to general semiconductor device)
Stresses exceeding Maximum Ratings may damage the device. If a IC is applied stresses
exceeding Maximum Ratings, a IC might smoke or fire by the breakdown and the overheating.
We recommend to derating design for reducing failure rate of device. A guide of general derating
design is described below.
(1)Stress Voltage: 80% or less for Abs Max voltage.
(2)Maximum rating current: 80% or less for Abs Max Io.
(3)Temperature: 80% or less for Temperatures rating.
2. Recommended Operating Range
When LV5680P was used within Recommended Operating Range and Temperature Rating,
unless otherwise specified, we do not guarantee the specified value in all temperature ranges. As
long as the IC is at operation temperature range, IC’s characteristic doesn’t change suddenly.
Operating conditions of the input voltage and the output current are limited by the chip maximum
junction temperature (Tjmax). Please decide the value of the input voltage and the output current
so as not to exceed Tjmax.
3. Output Capacitor
Between GND and each output, please be sure to put capacitor to prevent oscillation. Because
abrupt changes of input voltage and output load interfere in the output voltage, make sure to use
the system that will actually be offered to the market and define the output capacitor after a
sufficient evaluation. When selecting the capacitor, to ensure the required minimum capacity over
all operating conditions of the application, it is necessary to consider the influence of a
temperature and a applied voltage on the capacity value.
Please design the PCB pattern that the output terminal and the capacitor are located as close as
possible.
4. Parasitic Devices
Output Power MOS-FET driver has, in device structure, parasitic diode like the figure below.
Because in normal operating the input voltage is higher than the output voltage, the parasitic diode
is reverse bias. If the output is higher than the input at abnormal operating, a current flows from the
output to the input, because the parasitic diode is forward biased.
SOURCE(S)
GATE(G)
SOURCE(S)
p+
p+
n
n
GATE(G)
Parasitic diode
p-
Parasitic diode
p+
DRAIN(D)
DRAIN(D)
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LV5680P Application Note
5. Over -Current Protection
Each channel has an Over-Current Protection (OCP) circuit which is the "Fold-Back" type, OCP
circuit prevent IC’s break down at an over current condition. This circuit is useful against sudden
over current, but use of continuous operation is not allowed.
The limit value of output current is changed by ambient temperature and production tolerance.
However, the limiting value doesn't fall below the output maximum current defined by the
specification. When the output current uses it exceeding the maximum current, the OCP circuit
might operate in some situations. Please design the equipment, to be sure than a specified value.
Please design the output current to use without fail below a specified maximum value.
Output current
Spec limit
(Iomax)
Changes in temperature, etc
Without OCP
Limit Current
Limit Current
Iout
Vout
Output current
operating range
Vreg
Iout≒
Iout
Rload
Rload
OCP working area
6. Over-Voltage Protection
When VCC voltage exceeds 21V, the device detects over voltage condition and shuts down all
output but “VDD” to protect the device.
The peak voltage value (Vcc peak) changes depending on Surge-waveform condition. Adding
power clamp, such as power zenner diode, on battery connected line is recommended in order to
absorb applied surge.
7. Thermal shut-down
This IC built-in thermal shut-down circuit to prevent from thermal damage. If the state to exceed
the Absolute Maximum Rating of the power dissipation continues, and the chip temperature
(Junction temperature:Tj) reaches 175℃, the thermal shut-down circuit operates. When the
thermal shut-down circuit operates, all outputs are turned off regardless of CTRL state. Outputs
remain disabled until the junction temperature drops below 145℃(typ)(automatic restoration). If
the operating condition is not changing, the output repeats on and off. The output seems to
oscillate.
* 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 or thermal shutdown state may degrade the IC’s reliability and
eventually damage the IC.
8. Notes on Installation
Package "HZIP15J", there are some places where metal is exposed except terminals and a heat
sink. This includes the one connecting with the function pin. Especially, when the mounting
hardware covers IC, do not bring “②” & ”③” (in below figure) into contact with mounting hardware.
The potential of point “①” as well as the heat sink is equal to GND.
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LV5680P Application Note
・HZIP15J
①
Connected
Heat-sink
Connected
②
15pin
Connected
③
1pin
①
Connected
Heat-sink
Heat-sink
Connected
① Heat-sink
Heat-sink
:Expose metal part
※Same as other side
:Expose metal part
<HZIP15J Top view>
<HZIP15J Side view>
*Caution :Do not bring “②” & ”③” into contact with mounting hardware.
①
Connected
Heat-sink
③
Connected
1pin
②
Connected
15pin
①
Connected
Heat-sink
①
Connected
Heat-sink
9. Application Circuit Example
IC’s operating characteristics are influenced by PCB layout, connection, parasitic capacitance and
inductance. Therefore, make sure to use the system that will actually be offered to the market and
define a constant after a sufficient evaluation.
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LV5680P Application Note
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