IR43X2 [INFINEON]
channel integrated analog input Class D audio amplifier in a small 7 x 7 mm PQFN44 package; 小7× 7毫米PQFN44包通道集成模拟输入D类音频放大器型号: | IR43X2 |
厂家: | Infineon |
描述: | channel integrated analog input Class D audio amplifier in a small 7 x 7 mm PQFN44 package |
文件: | 总17页 (文件大小:568K) |
中文: | 中文翻译 | 下载: | 下载PDF数据表文档文件 |
IR43x2
Features
Product Summary
ꢀ
2 channel integrated analog input Class D audio
amplifier in a small 7 x 7 mm PQFN44 package
No mechanical heatsink required
High peak music power output
Split or single power supply
Half-Bridge,
Full-Bridge
Topology
ꢀ
ꢀ
ꢀ
ꢀ
ꢀ
130 W/ 4 ꢀ
100 W/ 3 ꢀ
35 W/ 4 ꢀ
40 W/ 3 ꢀ
80 W/ 4 ꢀ
50 W/ 2 ꢀ
IR4302 Output power
(Typical, THD+N=10%)
Differential or single-ended input
Over-current, over-temperature and under
voltage protections with self-reset feature
Start/stop click noise reduction
Clip and Fault reporting outputs
High noise immunity
IR4322 Output power
(Typical, THD+N=10%)
ꢀ
ꢀ
ꢀ
ꢀ
IR4312 Output power
(Typical, THD+N=10%)
RoHS compliant
*Residual noise
(AES-17, IHF-A, typical)
250 ꢁVrms
0.02 %
*THD+N
(1kHz, 1W, 4 ꢀ, typical)
Typical Applications
ꢀ
ꢀ
ꢀ
ꢀ
ꢀ
ꢀ
ꢀ
ꢀ
Home theatre systems
Docking station audio systems
PC audio systems
* In typical application example
Musical instruments
Package
Karaoke amplifiers
Game consoles
Powered speaker systems
General purpose audio power amplifiers
7x7mm PQFN44L
Typical Connection
1
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© 2012 International Rectifier
January 2, 2013
IR43x2
Table of Contents
Page
Typical Connection Diagram
1
Qualification Information
Absolute Maximum Ratings
Recommended Operating Conditions
Electrical Characteristics
Functional Block Diagram
Input/Output Pin Equivalent Circuit Diagram
Lead Definitions
4
5
7
8
11
12
14
15
16
17
17
Lead Assignments
Package Details
Part Marking Information
Ordering Information
2
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© 2012 International Rectifier
January 2, 2013
IR43x2
Description
The IR43x2 integrates 2 channel PWM controller and digital audio MOSFETs forming a high performance Class D
audio amplifier. As a result of fully optimized MOSFETs co-packed with a dedicated controller IC, the IR43X2
operates without mechanical heatsink attached in a typical music playback usage. High voltage ratings and noise
immunity in the controller IC ensures reliable operation over various environmental conditions. A small 7x7 mm
PQFN package enhances the benefit of smaller size of Class D topology. The IR43X2 series is a lead-free, ROHS
compliant.
Typical Connection Diagram
1. Inverting Amplifier
2. Differential Amplifier
3
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© 2012 International Rectifier
January 2, 2013
IR43x2
3. Single Power Supply (Inverting Amplifier)
Qualification Information†
Industrial††
Comments: This family of ICs has passed JEDEC’s Industrial
qualification. IR’s Consumer qualification level is granted by
extension of the higher Industrial level.
Qualification Level
MSL2
Moisture Sensitivity Level
(per IPC/JEDEC J-STD-020C)
Class A
Machine Model
ESD
(per JEDEC standard EIA/JESD22-A115)
Class 1B
(per EIA/JEDEC standard JESD22-A114)
Class I, Level A
Human Body Model
IC Latch-Up Test
RoHS Compliant
(per JESD78)
Yes
†
Qualification standards can be found at International Rectifier’s web site http://www.irf.com/
†† Higher qualification ratings may be available should the user have such requirements. Please contact your
International Rectifier sales representative for further information.
††† Higher MSL ratings may be available for the specific package types listed here. Please contact your International
Rectifier sales representative for further information.
4
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© 2012 International Rectifier
January 2, 2013
IR43x2
Absolute Maximum Ratings
Absolute Maximum Ratings indicate sustained limits beyond which damage to the device may occur. All voltage
parameters are absolute voltages referenced to COM=VN1=VN2; all currents are defined positive into any lead.
The Thermal Resistance and Power Dissipation ratings are measured under board mounted and still air
conditions.
Symbol
Definition
Min
-
-
Max
80
60
40
95
75
55
VBn +0.3
Units
IR4302
IR4322
IR4312
IR4302
IR4322
IR4312
VPn
Positive power supply rail voltage, n=1-2
-
-0.3
-0.3
-0.3
VBn -15
VSn -0.3
-0.3
VBn
High side floating supply voltage
High side floating supply voltage††, n=1-2
CSH pin input voltage, n=1-2
VSn
VCSHn
VCC
VBn +0.3
15
V
Low side supply voltage††
IR4302
IR4322
IR4312
-0.3
-0.3
-0.3
100
70
50
Floating input positive supply voltage††
VAA
-1
Floating input negative supply voltage††
VSS
GND +0.3
(See ISSZ
)
VIN+n
IINn
VCSD
VCOMPn
VCLIP
ICLIP
VFAULT
IFAULT
IAAZ
ISSZ
ICCZ
IBSZn
dVSn/dt
Floating input supply ground voltage , n=1-2
VSS -0.3
-
VSS -0.3
VSS -0.3
VAA +0.3
Input current between IN- and IN+ pins†, n=1-2
CSD pin input voltage
3
mA
V
VAA +0.3
VAA +0.3
VAA +0.3
5
VAA +0.3
5
COMP pin input voltage, n=1-2
CLIP pin input voltage
CLIP pin sinking current
FAULT pin input voltage
GND -0.3
-
mA
V
GND -0.3
FAULT pin sinking current
-
-
-
-
-
-
-
Floating input supply zener clamp current††
Floating input negative supply zener clamp current††
20
20
20
20
50
50
mA
Low side supply zener clamp current†††
Floating supply zener clamp current†††, n=1-2
Allowable Vs voltage slew rate, n=1-2
V/ns
V/ms
Allowable Vss voltage slew rate†††
dVSS/dt
IR4302
IR4322
IR4312
IR4302
IR4322
IR4312
IR4302
6.5
7.0
3.6
5.4
5.8
2.9
26
Continuous output current, from VPn to VSn, VSn
to VNn, VCC=10V, VBn-VSn=10V
Id@ 25ºC
Id@ 100ºC
IDM
-
-
Continuous output current, from VPn to VSn, VSn
to VNn, VCC=10V, VBn-VSn=10V
A
Pulsed output current, from VPn to VSn, VSn to
VNn, VCC=10V, VBn-VSn=10V†††††
IR4322
IR4312
28
15
-
5
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© 2012 International Rectifier
January 2, 2013
IR43x2
IR4302
IR4322
IR4312
IR4302
IR4322
IR4312
25
25
8
5
5
14
150
150
150
300
Power dissipation†††† @ TC = 25ꢁC
Pd
-
W
ꢁC/W
ꢁC
-
-
Thermal resistance, junction to ambient††††
RthJC
TJIC
TJFET
TS
Control IC junction temperature
FET junction temperature
Storage Temperature
-
-
-55
-
TL
Lead temperature (Soldering, 10 seconds)
†
††
IN- and IN+ contain clamping diodes between the two pins.
VAA -VSS, Vcc-COM and VBn-VSn contain internal shunt zener diodes. Note that the voltage
ratings of these can be limited by the clamping current.
For the rising and falling edges of step signal of 10V. Vss=15V to 200V.
Per MOSFET
†††
††††
†††††
Repetitive rating, pulse width limited by max. junction temperature
6
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© 2012 International Rectifier
January 2, 2013
IR43x2
Recommended Operating Conditions
For proper operation, the device should be used within the recommended conditions below. The Vss and Vsn
offset ratings are tested with supplies biased at COM=VN1=VN2, VAA-VSS=9.6V, VCC=12V and VBn-VSn=12V. All
voltage parameters are absolute voltages referenced to COM; all currents are defined positive into any lead.
Symbol
Definition
Min
Max
Units
IR4302
IR4322
IR4312
IR4302
IR4322
IR4312
-
-
-
-
46
46
32
62
Positive power supply voltage, n=1-2, without
heatsink
VPn
Positive power supply voltage, n=1-2, with
heatsink
-
50
-
32
VBn
VSn
VAA
High side floating supply absolute voltage, n=1-2
High side floating supply offset voltage, n=1-2
Floating input positive supply voltage††
VSn +10
VSn +14
80
40
VSS + 15
80
IR4302
IR4312
†
†
V
VSS + 4.5
IR4302
IR4322
IR4312
0
0
0
1
1
Floating input negative supply voltage††
VSS
60
40
15
15
Floating input supply zener clamp current††
Floating input negative supply zener clamp current††
Low side fixed supply voltage
IN- and IN+ pins common mode input voltage
Inverting input voltage, n=1-2
IAAZ
ISSZ
VCC
VIC
VIN-n
VCSD
VCOMPn
mA
V
10
15
VSS + 2
VIN+ -0.5
VSS
VAA - 2
VIN+ +0.5
VAA
CSD pin input voltage
COMP pin input voltage, n=1-2
VSS
VAA
CCOMPn
VCSHn
COMP pin phase compensation capacitor to GND , n=1-2
CSH pin input voltage, n=1-2
1
-
nF
V
VSn
VBn
Allowable Vss voltage slew rate upon power-up†††
dVss/dt
-
50
V/ms
fSW
TA
Switching Frequency
Ambient Temperature
-
500
100
kHz
-40
ꢁC
Logic operational for Vs equal to –5V to +80V. Logic state held for Vs equal to –5V to –VBS.
†
††
†††
GND input voltage is limited by IAAZ and ISSZ
Vss ramps up from 0V to 70V.
.
7
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© 2012 International Rectifier
January 2, 2013
IR43x2
Electrical Characteristics
VCC,VBS= 12 V, VSS=VS1=VS2=VN1=VN2=COM=0V, VAA=9.6V and TA=25ꢁC unless otherwise specified.
Symbol
Low Side Supply
Definition
Min
8.4
Typ
8.9
Max
Units
Test Conditions
Vcc supply UVLO positive
UVCC+
9.4
9.2
V
threshold
Vcc supply UVLO negative
threshold
UVCC-
8.2
8.7
V
V
UVCCHYS UVCC hysteresis
IQCC
ICC
-
-
-
0.2
-
10
-
3
-
Low side quiescent current
mA
mA
Low side supply current
Low side zener diode clamp
voltage, n=1-2
f=400kHz
ICC=5mA
VCLAMPL
n
14.7
15.3
16.2
V
High Side Floating Supply
High side well UVLO
UVBS+n
8.0
8.5
9.0
V
positive threshold, n=1-2
High side well UVLO
UVBS-n
7.8
8.3
0.2
-
8.8
-
V
V
negative threshold, n=1-2
UVBSHYSn UVBS hysteresis, n=1-2
-
-
High side quiescent current,
IQBSn
2.4
mA
n=1-2
High side zener diode clamp
VCLAMPHn
14.7
15.3
16.2
V
IBS=5mA
voltage, n=1-2
Floating Input Supply
VA+, VA- floating supply
V
SS =0V, GND
UVAA+
UVLO positive threshold
from VSS
8.2
8.7
9.2
V
pin floating
VA+, VA- floating supply
UVLO negative threshold
from VSS
V
SS =0V, GND
UVAA-
7.7
8.2
0.5
1.5
8.7
-
V
V
pin floating
VSS =0V, GND
UVAAHYS UVAA hysteresis
-
-
pin floating
VAA=9.6V, VSS
=0V,
Floating Input positive
quiescent supply current
IQAA0
3
mA
VCSD =VSS
VAA=9.6V, VSS
=0V,
VCSD =VAA
VAA=9.6V, VSS
=0V,
VCSD =GND
VAA=VSS=VGND
100V
Floating Input positive
quiescent supply current
IQAA1
-
4
6
mA
Floating Input positive
quiescent supply current
IQAA2
ILKM
-
-
5
-
7.5
50
mA
μA
Floating input side to Low
side leakage current
=
VAA floating supply zener
IAA=5mA,
ISS=5mA,
VGND=0V,
VCSD =VSS
diode clamp voltage,
positive, with respect to
GND
VCLAMPM+
4.9
5.1
5.4
V
V
I
I
AA=5mA,
SS=5mA,
VSS floating supply zener diode
clamp voltage, negative, with
respect to GND
VCLAMPM-
-5.4
-5.1
-4.9
VGND=0V,
V
CSD =VSS
8
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© 2012 International Rectifier
January 2, 2013
IR43x2
Electrical Characteristics (cont’d)
VCC,VBS= 12 V, VSS=VS1=VS2=VN1=VN2=COM=0V, VAA=9.6V and TA=25ꢁC unless otherwise specified.
Symbol
Test Conditions
Definition
Min
Typ
Max
Units
Audio Input (VGND=0, VAA=4.8V, VSS=-4.8V)
VOSn
IBINn
Input offset voltage, n=1-2
Input bias current, n=1-2
Small signal bandwidth in
OTA, n=1-2
-18
-
0
18
40
mV
-
nA
C
COMP=1nF,
GBWn
-
9
-
MHz
Rf=0
VIN+=0V, VIN-
gmn
OTA transconductance, n=1-2
OTA gain, n=1-2
-
10
-
-
-
mS
dB
=10mV
GVn
PWM
50
PWM comparator threshold in
COMP
(VAA
VSS)/2
-
VthPWM
-
0.7
-
-
1.5
-
V
MHz
ns
COMP pin star-up local
oscillation frequency, n=1-2
COMP to VS rising edge
propagation delay, n=1-2
COMP to VS trailing edge
propagation delay, n=1-2
Deadtime: Low-side turn-off to
High-side turn-on (DTLO-HO) &
High-side turn-off to Low-side
turn-on (DTHO-LO) , n=1-2
fOTAn
1.0
VCSD =GND
Ton_n
Toff_n
370
320
-
-
ns
VP=30V,
VN=-30V,
DTn
-
50
-
ns
Power MOSFET (FET1, FET2, FET3, FET4) (IR4302)
Drain-to-Source breakdown
voltage
VGS=0V,
ID=250uA
VGS=10V,
ID=3.3A
V(BR)DSS
80
-
-
V
RDS(ON)
FET on resistance
-
39
50
mꢀ
Qg
ILK0
ILK1
Total gate charge
VP leakage current, VS=VN
VP leakage current, VS=VP
-
-
-
7.3
-
-
-
20
50
nC
μA
μA
VP=80V, VCSD
=VSS
Power MOSFET (FET1, FET2, FET3, FET4) (IR4322)
Drain-to-Source breakdown
VGS=0V,
V(BR)DSS
60
-
-
V
voltage
ID=250uA
RDS(ON)
Qg
ILK0
ILK1
FET on resistance
Total gate charge
-
-
-
-
24
8.3
-
29
-
20
50
mꢀ
nC
μA
μA
VGS=10V, ID=7A
VP leakage current, VS=VN
VP leakage current, VS=VP
VP=60V, VCSD
=VSS
-
Power MOSFET (FET1, FET2, FET3, FET4) (IR4312)
Drain-to-Source breakdown
VGS=0V,
ID=250uA
ID=3.6A
VGS=10V
VP=40V, VCSD
=VSS
V(BR)DSS
40
-
-
V
voltage
RDS(ON)
Qg
FET on resistance
Total gate charge
-
-
44
4.5
56
-
mꢀ
nC
ILK0
ILK1
VP leakage current, VS=VN
VP leakage current, VS=VP
-
-
-
-
20
50
μA
μA
9
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© 2012 International Rectifier
January 2, 2013
IR43x2
Electrical Characteristics (cont’d)
VCC,VBS= 12 V, VSS=VS1=VS2=VN1=VN2=COM=0V, VAA=9.6V and TA=25ꢁC unless otherwise specified.
Symbol
Definition
Min
Typ
Max
Units
Test Conditions
Protection
Over current detection
Positive threshold, n=1-2
Over current detection
Negatitive threshold, n=1-2
CSD pin shutdown release
threshold
IOCPn
-
-
16
-
-
A
A
IOCNn
-16
Vth1
Vth2
ICSD+
0.62xVAA 0.70xVAA 0.78xVAA
0.26xVAA 0.30xVAA 0.34xVAA
V
V
CSD pin self reset threshold
V
CSD = VSS
CSD pin discharge current
70
100
130
μA
+4.8V
VCSD = VSS
ICSD-
tSDn
CSD pin charge current
70
100
130
μA
+4.8V
Shutdown propagation delay
from VS < Vth1 to Shutdown,
n=1-2
CHn propagation delay time
from IOn > IOCPn to Shutdown,
n=1-2
-
-
-
-
-
-
250
500
500
ns
ns
ns
COMP = VSS
COMP = VSS
COMP = VSS
tOCPn
CHn propagation delay time
from IOn < IOCNn to Shutdown,
n=1-2
tOCNn
Clip detection positive
threshold in COMP
Vth+CLIP
Vth-CLIP
tCLIP
0.85xVAA 0.90xVAA 0.95xVAA
0.05xVAA 0.10xVAA 0.15xVAA
V
Clip detection negative
threshold in COMP
V
Clipping detection
propagation delay
-
-
-
-
40
3
-
-
-
-
ns
us
ºC
ºC
Clipping detection minimum
output duration
tCLIPmin
TSD
Over temperature shutdown
threshold in controller IC
Over temperature shutdown
threshold hysteresis
105
7
TSDHYS
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January 2, 2013
IR43x2
ꢀ
Functional Bock Diagram
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January 2, 2013
IR43x2
Input/Output Pin Equivalent Circuit Diagrams
CSHn
VBn
VPn
10k
15
ESD
Diode
D
V
Clamp
G
HOn
ESD
Diode
S
VSn
VCC
200
V
V CC
ESD
15 V
D
Diode
Clamp
G
LOn
ESD
Diode
S
COM
VNn
COM2
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© 2012 International Rectifier
January 2, 2013
IR43x2
Input/Output Pin Equivalent Circuit Diagrams (Cont’d)
CHARGE
VAA
ESD
Diode
CSD
ESD
Diode
VSS
DISCHARGE
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© 2012 International Rectifier
January 2, 2013
IR43x2
Lead Definitions
ꢀ
Pin #
Description
Symbol
CLIP
COMP2
IN-2
IN+2
GND
VSS
VAA
IN+1
IN-1
COMP1
CSD
FAULT
NC
1
Clipping detection output, open drain, referenced to GND
CH2 PWM comparator input
2
3
CH2 Analog inverting input
4
CH2 Analog non-inverting input
GND for internal shunt zener diodes to VAA and VSS
Floating input negative supply
Floating input positive supply
CH1 Analog non-inverting input
5
6
7
8
9
CH1 Analog inverting input
10
11
12
13
14
15
16
17
18
19
20
21
22
23
24
25
26
27
28
29
30
31
CH1 PWM comparator input
Shutdown timing capacitor / shutdown input
Fault reporting output, open drain, referenced to GND
VCC
COM
CSH1
VB1
Low side supply
Low side supply return, internally connected to pin 31
CH1 High side over current sensing input, referenced to VS1
CH1 High side floating supply
CH1 PWM output, internally connected to pin 20
CH1 Positive power supply
VS1
VP1
VS1
CH1 PWM output
VN1
CH1 Negative power supply, connect to COM externally
CH2 Negative power supply, connect to COM externally
CH2 PWM output, internally connected to pin 25
CH2 Positive power supply
VN2
VS2
VP2
VS2
CH2 PWM output
VB2
CH2 High side floating supply
CH2 High side over current sensing input, referenced to VS2
Low side supply return, internally connected to pin 31
CSH2
COM
NC
NC
COM
Low side supply return
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January 2, 2013
IR43x2
Lead Assignments (Top View)
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© 2012 International Rectifier
January 2, 2013
IR43x2
Package Details
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© 2012 International Rectifier
January 2, 2013
IR43x2
Board Mounting Information
Refer to Application Note AN-1170 Audio Power Quad Flat No-Lead (PQFN) Board Mounting Application Note.
Part Marking Information
Ordering Information
Standard Pack
Base Part Number Package Type
Complete Part Number
Form
Quantity
PQFN44ꢀ
IR4302M
7x7mm
Tape and Reel
3000
IR4302MTRPBF
IR4322MTRPBF
IR4312MTRPBF
PQFN44ꢀ
IR4322M
7x7mm
Tape and Reel
Tape and Reel
3000
3000
PQFN44ꢀ
IR4312M
7x7mm
The information provided in this document is believed to be accurate and reliable. However, International
Rectifier assumes no responsibility for the consequences of the use of this information. International
Rectifier assumes no responsibility for any infringement of patents or of other rights of third parties which
may result from the use of this information. No license is granted by implication or otherwise under any
patent or patent rights of International Rectifier. The specifications mentioned in this document are
subject to change without notice. This document supersedes and replaces all information previously
supplied.
For technical support, please contact IR’s Technical Assistance Center
http://www.irf.com/technical-info/
WORLD HEADQUARTERS:
101 N. Sepulveda Blvd., El Segundo, California 90245
Tel: (310) 252-7105
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January 2, 2013
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