IR4312M_技术文档

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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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

Lead Assignments

Package Details

Part Marking Information

Ordering Information

2

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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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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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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

V_Bn+0.3

Units

IR4302

IR4322

IR4312

IR4302

IR4322

IR4312

V_Pn

Positive power supply rail voltage, n=1-2

-

-0.3

V_Bn-15

V_Sn-0.3

-0.3

V_Bn

High side floating supply voltage

High side floating supply voltage^††, n=1-2

CSH pin input voltage, n=1-2

V_Sn

V_CSHn

V_CC

V_Bn+0.3

15

V

Low side supply voltage^††

IR4302

IR4322

IR4312

-0.3

100

70

50

Floating input positive supply voltage^††

V_AA

-1

Floating input negative supply voltage^††

V_SS

GND +0.3

(See I_SSZ

)

V_IN+n

I_INn

V_CSD

V_COMPn

V_CLIP

I_CLIP

V_FAULT

I_FAULT

I_AAZ

I_SSZ

I_CCZ

I_BSZn

dV_Sn/dt

Floating input supply ground voltage , n=1-2

V_SS-0.3

-

V_SS-0.3

V_AA+0.3

Input current between IN- and IN+ pins^†, n=1-2

CSD pin input voltage

3

mA

V

V_AA+0.3

5

V_AA+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

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^†††

dV_SS/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, V_CC=10V, V_Bn-V_Sn=10V

Id_{@ 25ºC}

Id_{@ 100ºC}

I_DM

-

Continuous output current, from VPn to VSn, VSn

to VNn, V_CC=10V, V_Bn-V_Sn=10V

A

Pulsed output current, from VPn to VSn, VSn to

VNn, V_CC=10V, V_Bn-V_Sn=10V^{†††††}

IR4322

IR4312

28

15

-

5

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January 2, 2013

IR43x2

IR4302

IR4322

IR4312

IR4302

IR4322

IR4312

25

8

5

14

150

300

Power dissipation^††††@ T_C= 25ꢁC

Pd

-

W

ꢁC/W

ꢁC

-

Thermal resistance, junction to ambient^††††

Rth_JC

T_JIC

T_JFET

T_S

Control IC junction temperature

FET junction temperature

Storage Temperature

-

-55

-

T_L

Lead temperature (Soldering, 10 seconds)

†

††

IN- and IN+ contain clamping diodes between the two pins.

V_AA-V_SS, 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

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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, V_AA-V_SS=9.6V, V_CC=12V and V_Bn-V_Sn=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

32

62

Positive power supply voltage, n=1-2, without

heatsink

V_Pn

Positive power supply voltage, n=1-2, with

heatsink

-

50

-

32

V_Bn

V_Sn

V_AA

High side floating supply absolute voltage, n=1-2

High side floating supply offset voltage, n=1-2

Floating input positive supply voltage^††

V_Sn+10

V_Sn+14

80

40

V_SS+ 15

80

IR4302

IR4312

†

V

V_SS+ 4.5

IR4302

IR4322

IR4312

0

1

Floating input negative supply voltage^††

V_SS

60

40

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

I_AAZ

I_SSZ

V_CC

V_IC

V_IN-n

V_CSD

V_COMPn

mA

V

10

15

V_SS+ 2

V_IN+-0.5

V_SS

V_AA- 2

V_IN++0.5

V_AA

CSD pin input voltage

COMP pin input voltage, n=1-2

V_SS

V_AA

C_COMPn

V_CSHn

COMP pin phase compensation capacitor to GND , n=1-2

CSH pin input voltage, n=1-2

1

-

nF

V

V_Sn

V_Bn

Allowable Vss voltage slew rate upon power-up^†††

dVss/dt

-

50

V/ms

f_SW

T_A

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 –V_BS.

†

††

†††

GND input voltage is limited by I_AAZand I_SSZ

Vss ramps up from 0V to 70V.

.

7

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IR43x2

Electrical Characteristics

V_CC,V_BS= 12 V, V_SS=V_S1=V_S2=V_N1=V_N2=COM=0V, V_AA=9.6V and T_A=25ꢁC unless otherwise specified.

Symbol

Low Side Supply

Definition

Min

8.4

Typ

8.9

Max

Units

Test Conditions

Vcc supply UVLO positive

UV_CC+

9.4

9.2

V

threshold

Vcc supply UVLO negative

threshold

UV_CC-

8.2

8.7

V

UV_CCHYSUV_CChysteresis

I_QCC

I_CC

-

0.2

-

10

-

3

-

Low side quiescent current

mA

Low side supply current

Low side zener diode clamp

voltage, n=1-2

f=400kHz

I_CC=5mA

V_CLAMPL

n

14.7

15.3

16.2

V

High Side Floating Supply

High side well UVLO

UV_BS+n

8.0

8.5

9.0

V

positive threshold, n=1-2

High side well UVLO

UV_BS-n

7.8

8.3

0.2

-

8.8

-

V

negative threshold, n=1-2

UV_BSHYSnUV_BShysteresis, n=1-2

-

High side quiescent current,

I_QBSn

2.4

mA

n=1-2

High side zener diode clamp

V_CLAMPHn

14.7

15.3

16.2

V

I_BS=5mA

voltage, n=1-2

Floating Input Supply

VA+, VA- floating supply

V

_SS=0V, GND

UV_AA+

UVLO positive threshold

from V_SS

8.2

8.7

9.2

V

pin floating

VA+, VA- floating supply

UVLO negative threshold

from V_SS

V

_SS=0V, GND

UV_AA-

7.7

8.2

0.5

1.5

8.7

-

V

pin floating

V_SS=0V, GND

UV_AAHYSUV_AAhysteresis

-

pin floating

V_AA=9.6V, V_SS

=0V,

Floating Input positive

quiescent supply current

I_QAA0

3

mA

V_CSD=VSS

V_AA=9.6V, V_SS

=0V,

V_CSD=VAA

V_AA=9.6V, V_SS

=0V,

V_CSD=GND

V_AA=V_SS=V_GND

100V

Floating Input positive

quiescent supply current

I_QAA1

-

4

6

mA

Floating Input positive

quiescent supply current

I_QAA2

I_LKM

-

5

-

7.5

50

mA

μA

Floating input side to Low

side leakage current

=

V_AAfloating supply zener

I_AA=5mA,

I_SS=5mA,

V_GND=0V,

V_CSD=VSS

diode clamp voltage,

positive, with respect to

GND

V_CLAMPM+

4.9

5.1

5.4

V

I

_AA=5mA,

_SS=5mA,

V_SSfloating supply zener diode

clamp voltage, negative, with

respect to GND

V_CLAMPM-

-5.4

-5.1

-4.9

V_GND=0V,

V

_CSD=VSS

8

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January 2, 2013

IR43x2

Electrical Characteristics (cont’d)

V_CC,V_BS= 12 V, V_SS=V_S1=V_S2=V_N1=V_N2=COM=0V, V_AA=9.6V and T_A=25ꢁC unless otherwise specified.

Symbol

Test Conditions

Definition

Min

Typ

Max

Units

Audio Input (V_GND=0, V_AA=4.8V, V_SS=-4.8V)

V_OSn

I_BINn

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

V_IN+=0V, V_IN-

g_mn

OTA transconductance, n=1-2

OTA gain, n=1-2

-

10

-

mS

dB

=10mV

G_Vn

PWM

50

PWM comparator threshold in

COMP

(V_AA

V_SS)/2

-

Vth_PWM

-

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 (DT_LO-HO) &

High-side turn-off to Low-side

turn-on (DT_HO-LO) , n=1-2

f_OTAn

1.0

V_CSD=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

V_GS=0V,

I_D=250uA

V_GS=10V,

I_D=3.3A

V_(BR)DSS

80

-

V

R_DS(ON)

FET on resistance

-

39

50

mꢀ

Qg

I_LK0

I_LK1

Total gate charge

VP leakage current, VS=VN

VP leakage current, VS=VP

-

7.3

-

20

50

nC

μA

V_P=80V, V_CSD

=VSS

Power MOSFET (FET1, FET2, FET3, FET4) (IR4322)

Drain-to-Source breakdown

V_GS=0V,

V_(BR)DSS

60

-

V

voltage

I_D=250uA

R_DS(ON)

Qg

I_LK0

I_LK1

FET on resistance

Total gate charge

-

24

8.3

-

29

-

20

50

mꢀ

nC

μA

V_GS=10V, I_D=7A

VP leakage current, VS=VN

VP leakage current, VS=VP

V_P=60V, V_CSD

=VSS

-

Power MOSFET (FET1, FET2, FET3, FET4) (IR4312)

Drain-to-Source breakdown

V_GS=0V,

I_D=250uA

I_D=3.6A

V_GS=10V

V_P=40V, V_CSD

=VSS

V_(BR)DSS

40

-

V

voltage

R_DS(ON)

Qg

FET on resistance

Total gate charge

-

44

4.5

56

-

mꢀ

nC

I_LK0

I_LK1

VP leakage current, VS=VN

VP leakage current, VS=VP

-

20

50

μA

9

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January 2, 2013

IR43x2

Electrical Characteristics (cont’d)

V_CC,V_BS= 12 V, V_SS=V_S1=V_S2=V_N1=V_N2=COM=0V, V_AA=9.6V and T_A=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

I_OCPn

-

16

-

A

I_OCNn

-16

Vth1

Vth2

I_CSD+

0.62xV_AA0.70xV_AA0.78xV_AA

0.26xV_AA0.30xV_AA0.34xV_AA

V

CSD pin self reset threshold

V

_CSD= V_SS

CSD pin discharge current

70

100

130

μA

+4.8V

V_CSD= V_SS

I_CSD-

t_SDn

CSD pin charge current

70

100

130

μA

+4.8V

Shutdown propagation delay

from V_S< Vth1 to Shutdown,

n=1-2

CHn propagation delay time

from I_On> I_OCPnto Shutdown,

n=1-2

-

250

500

ns

COMP = V_SS

t_OCPn

CHn propagation delay time

from I_On< I_OCNnto Shutdown,

n=1-2

t_OCNn

Clip detection positive

threshold in COMP

Vth+_CLIP

Vth-_CLIP

t_CLIP

0.85xV_AA0.90xV_AA0.95xV_AA

0.05xV_AA0.10xV_AA0.15xV_AA

V

Clip detection negative

threshold in COMP

V

Clipping detection

propagation delay

-

40

3

-

ns

us

ºC

Clipping detection minimum

output duration

t_CLIPmin

T_SD

Over temperature shutdown

threshold in controller IC

Over temperature shutdown

threshold hysteresis

105

7

T_SDHYS

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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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IR43x2

Input/Output Pin Equivalent Circuit Diagrams (Cont’d)

CHARGE

VAA

ESD

Diode

CSD

ESD

Diode

VSS

DISCHARGE

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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

COM

Low side supply return

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January 2, 2013

IR43x2

Lead Assignments (Top View)

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January 2, 2013

IR43x2

Package Details

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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

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

17 www.irf.com

January 2, 2013


型号：	IR4312M
厂家：	Infineon
描述：	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类音频放大器音频放大器
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

IR4312M [INFINEON]

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