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What is IR4321?

This electronic component, produced by the manufacturer "International Rectifier", performs the same function as "Integrated analog input Class D audio amplifier".


IR4321 Datasheet PDF - International Rectifier

Part Number IR4321
Description Integrated analog input Class D audio amplifier
Manufacturers International Rectifier 
Logo International Rectifier Logo 


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Total 15 Pages



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IR43x1
Features
Integrated analog input Class D audio amplifier
in a small 5 x 6 mm PQFN package
High peak music power output
No mechanical heatsink required
Split or single power supply
Differential or single-ended input
Over-current, over-temperature and under
voltage protections with self-reset function
Start and stop click noise reduction
High noise immunity
RoHS compliant
Typical Applications
Home theatre systems
Docking station audio systems
PC audio systems
Musical instruments
Karaoke amplifiers
Game consoles
Powered speaker systems
General purpose audio power amplifiers
Product Summary
Topology
*IR4301 Output power
(Typical, THD+N=10%)
*IR4321 Output power
(Typical, THD+N=10%)
*IR4311 Output power
(Typical, THD+N=10%)
*Residual noise
(AES-17, IHF-A, typical)
*THD+N
(1kHz, 1W, 4 Ω, typical)
* In typical application example
Package
Half-Bridge,
Full-Bridge
160 W/ 4 Ω
120 W/ 3 Ω
90 W/ 4 Ω
135 W/ 2 Ω
35 W/ 4 Ω
45 W/ 3 Ω
250 μVrms
0.02 %
Typical Connection
INPUT
VAA
GND
IN+
IN-
COMP
CSD
VSS
CSH
VCC
VB
COM
5x6mm PQFN22
+B
VP
VS
Speaker
VN
VCC
-B
1 www.irf.com © 2013 International Rectifier
April 22, 2013

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IR4321 equivalent
IR43x1
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=VN; 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
VP
VB
VCSH
VS
VCC
VAA
VSS
VIN+
IIN
VCSD
VCOMP
IAAZ
ISSZ
ICCZ
IBSZ
dVS/dt
dVSS/dt
Id@ 25ºC
Id@ 100ºC
IDM
Pd
Definition
VP pin positive power supply rail voltage
High side floating supply voltage
CSH pin input voltage
High side floating supply voltage††
Low side supply voltage††
Floating input positive supply voltage††
Floating input negative supply voltage††
IR4301
IR4321
IR4311
IR4301
IR4321
IR4311
IR4301
IR4321
IR4311
Floating input supply ground voltage
Input current between IN- and IN+ pins
CSD pin input voltage
COMP pin input voltage
Floating input supply zener clamp current††
Floating input negative supply zener clamp current††
Low side supply zener clamp current†††
Floating supply zener clamp current†††
Allowable Vs voltage slew rate
Allowable Vss voltage slew rate†††
Continuous output current, from VP to VS, VS
to VN, VCC=10V, VB-VS=10V
IR4301
IR4321
IR4311
Continuous output current, from VP to VS, VS
to VN, VCC=10V, VB-VS=10V
IR4301
IR4321
IR4311
Pulsed output current, from VP to VS, VS to
VN, VCC=10V, VB-VS=10V †††††
IR4301
IR4321
IR4311
Power dissipation†††† @ TC = 25C
IR4301
IR4321
IR4311
Min
-
-
-
-0.3
-0.3
-0.3
VS -0.3
VB -15
-0.3
-0.3
-0.3
-0.3
-1
(See ISSZ)
VSS -0.3
-
VSS -0.3
VSS -0.3
-
-
-
-
-
-
-
-
-
-
-
-
-
-
-
-
-
-
Max
80
60
40
95
75
55
VB +0.3
VB +0.3
15
100
70
50
GND +0.3
VAA +0.3
±3
VAA +0.3
VAA +0.3
20
20
20
20
50
50
6.5
7.0
3.6
5.4
5.8
2.9
26
28
15
31
31
9
Units
V
mA
V
mA
V/ns
V/ms
A
W
5 www.irf.com © 2013 International Rectifier
April 22, 2013


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Part Details

On this page, you can learn information such as the schematic, equivalent, pinout, replacement, circuit, and manual for IR4321 electronic component.


Information Total 15 Pages
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Featured Datasheets

Part NumberDescriptionMFRS
IR4321The function is Integrated analog input Class D audio amplifier. International RectifierInternational Rectifier
IR4322The function is 2-Channel Integrated Analog Input Class D Audio Amplifier. International RectifierInternational Rectifier

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