max98400a Maxim Integrated Products, Inc., max98400a Datasheet
max98400a
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max98400a Summary of contents
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... General Description The MAX98400A/MAX98400B Class D amplifiers provide high-performance, thermally efficient amplifier solutions. The MAX98400A delivers 2x20W into 8I loads or 1x40W into a 4I load. The MAX98400B delivers 2x12W into 8I loads. An integrated limiting circuit prevents output clipping distortion, protects small speakers from transient volt- ages, and reduces power dissipation ...
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... Stereo, High-Power, Class D Amplifiers Absolute Maximum Ratings . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 4 Electrical Characteristics . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 4 Typical Operating Characteristics . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 7 Pin Configurations . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 12 Pin Descriptions . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 12 Stereo Configuration for MAX98400A . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 14 Mono Configuration for MAX98400A . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 15 Detailed Description . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 15 Efficiency . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 16 Shutdown Click-and-Pop Suppression . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 16 Mono Configuration . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 16 Clipping Limiter . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 16 Limiter Threshold Control (LIM_TH Release Time Control (RELEASE Preamplifier Gain Setting ...
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... Stereo, High-Power, Class D Amplifiers Figure 1. MAX98400B EMI Performance . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 18 Figure 2. MAX98400A Efficiency vs. Class AB Effifciency . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 18 Figure 3. Limiter Control, Mode3 Configuration (Table Figure 4. Output Filter for PWM Mode . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 21 Table 1. Limiter Control Modes . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 19 Table 2. Gain Selection . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 20 Table 3. Filter Component Selection . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 21 lisT of figures lisT of Tables ...
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Stereo, High-Power, Class D Amplifiers ABSOLUTE MAXIMUM RATINGS PVDD to PGND ......................................................-0.3V to +30V V to GND ...............................................................-0.3V to +6V S SHDN, MONO to GND ............................................-0.3V to +6V IN_ to GND ..............................................................-0.3V to +6V G1, G2, RELEASE, TEMPLOCK, LIM_TH to ...
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... L P OUT f = 1kHz (Note 0. /2, f OUT OUT 20kHz THD / 1kHz OUT A-weighted 2x20W (MAX98400A) OUT 1kHz (Note LIM R DSON 28V PVDD LIM_TH LIM_TH V = 14V (Note 6) PVDD (Note 7) V ...
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... Note 2: 100% production tested Note 3: The MAX98400A stereo mode is specified with an 8I resistive load in series with a 68FH inductive load connected across BTL outputs. The MAX98400A mono mode is specified with a 4I resistive load in series with 33FH inductive load. The MAX98400B is specified with an 8I resistive load in series with a 68FH inductive load connected across BTL outputs. ...
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... Stereo, High-Power, Class D Amplifiers (MAX98400A 18V 5V, LIM_TH = V PVDD SHDN 1FF, typical values are at T REL TOTAL HARMONIC DISTORTION PLUS NOISE vs. FREQUENCY OUT 0 0.5W OUT 0. 12V PVDD 8I LOAD 0.001 0.01 0 FREQUENCY (kHz) TOTAL HARMONIC DISTORTION PLUS NOISE vs. OUTPUT POWER 6kHz ...
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... Stereo, High-Power, Class D Amplifiers (MAX98400A 18V 5V, LIM_TH = V PVDD SHDN 1FF, typical values are at T REL EFFICIENCY vs. OUTPUT POWER 100 24V, PVDD 8I LOAD, 10 BOTH CHANNELS DRIVEN TOTAL OUTPUT POWER (W) MAXIMUM OUTPUT POWER vs. SUPPLY VOLTAGE ...
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... Stereo, High-Power, Class D Amplifiers (MAX98400A 18V 5V, LIM_TH = V PVDD SHDN 1FF, typical values are at T REL INBAND OUTPUT SPECTRUM 0 8I LOAD -20 -40 -60 -80 -100 -120 FREQUENCY (kHz) SUPPLY CURRENT vs. PVDD SUPPLY VOLTAGE PVDD ...
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... Stereo, High-Power, Class D Amplifiers (MAX98400A 18V 5V, LIM_TH = V PVDD SHDN 1FF, typical values are at T REL TOTAL HARMONIC DISTORTION PLUS NOISE vs. OUTPUT POWER (MONO 6kHz 0 1kHz 0. 12V, PVDD f = 100Hz 4I LOAD 0.001 OUTPUT POWER (W) EFFICIENCY vs. OUTPUT POWER (MONO) ...
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... Stereo, High-Power, Class D Amplifiers (MAX98400A 18V 5V, LIM_TH = V PVDD SHDN 1FF, typical values are at T REL OUTPUT POWER vs. LOAD (MONO 10% THD THD LOAD (I) SUPPLY CURRENT vs. V SUPPLY VOLTAGE (MONO ...
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... N.C. 28 PGND 29 PGND 30 PVDD 31 MAX98400A PVDD 32 PVDD 33 PGND 34 PGND TQFN PIN NAME MAX98400A MAX98400B OUTL 18, 22, — N.C. 25, 28 OUTL LIM_TH 12 TOP VIEW N.C. 18 INR+ 17 INR- 16 GND ...
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... Stereo, High-Power, Class D Amplifiers PIN NAME MAX98400A MAX98400B 11 8 INL INL- 13 — MONO 14 GND 16 11 INR INR TEMPLOCK 20 14 RELEASE 21 15 SHDN 23 OUTR+ 26, 27 17, 18 OUTR- 19, 20, 29, 30, 34, 35 PGND 23, 24 31, 32, 33 21, 22 PVDD — — ...
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... INL+ 11 LEFT C IN INPUT 1.0µF INL- 12 TEMPLOCK 1.0µF INR+ 17 RIGHT C IN INPUT 1.0µF INR Stereo Configuration for MAX98400A 8V TO 28V C1 C BULK 1.0µF 200µF V PVDD S 6 31, 32, 33 REGULATOR MAX98400A CLIPPING PGA LIMITER THERMAL FOLDBACK WITH THERMAL CLIPPING PGA ...
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... F Detailed Description The MAX98400A/MAX98400B Class D amplifiers pro- vide high-performance, thermally efficient amplifier solu- tions. The MAX98400A delivers 2x20W into 8I loads or 1x40W into a 4I load. The MAX98400B delivers 2x12W into 8I loads. An integrated limiting circuit prevents output clipping distortion and protects small speakers from transient voltages ...
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... While in shutdown, the H-bridge high- Efficiency impedance state. The MAX98400A features a mono mode that allows the right and left channels to operate in parallel, achieving 2 R loss of the up to 40W of output power. Apply a logic-high (V MONO to enable mono mode ...
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... THRESH THRESH is set 20% higher than V , the output THD distortion is PVDD LIM1 THRESH . This limits the output clipping PVDD Release Time Control (RELEASE GND. Choose C REL limit is 2.2FF. REL MAX98400A PVDD MAX98400B PVDD PVDD V S REGULATOR 1.0 µ F LIMITER CONTROL LIM_TH ...
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Stereo, High-Power, Class D Amplifiers Preamplifier Gain Setting The ICs offer eight pin-selectable gain settings, select- able through the G1 and G2 pins. The ICs feature overcurrent protection and two types of thermal protection: thermal foldback and overtempera- ture protection. ...
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... internally generated 5V S supply (4.6V typ internally generated from a lin- S ear regulator that is powered from V PVDD and V pins to ground with a 1FF capacitor MAX98400A Figure 4. Output Filter for PWM Mode Table 3. Filter Component Selection R (I) L1, L2 (µ ...
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... Stereo, High-Power, Class D Amplifiers MONO 13 INL+ 11 INL- 12 TEMPLOCK 19 INR+ 17 INR PVDD S 6 31, 32, 33 MAX98400A REGULATOR CLIPPING PGA LIMITER POWER THERMAL STAGE FOLDBACK WITH THERMAL CLIPPING AND PGA LIMITER OVERCURRENT PROTECTION LIMITER GAIN BIAS AND CONTROL SELECTION OSCILLATOR LIM_TH ...
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Stereo, High-Power, Class D Amplifiers V PVDD S 4 21, 22 REGULATOR INL+ 8 CLIPPING PGA LIMITER INL- 9 TEMPLOCK 13 THERMAL FOLDBACK INR+ 12 CLIPPING PGA LIMITER INR- 11 LIMITER CONTROL SELECTION LIM_TH RELEASE G1 Functional ...
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Stereo, High-Power, Class D Amplifiers For the latest package outline information and land patterns www.maxim-ic.com/packages. Note that a “+”, “#”, or “-” in the package code indicates RoHS status only. Package drawings may show a different suffix character, ...
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Stereo, High-Power, Class D Amplifiers For the latest package outline information and land patterns www.maxim-ic.com/packages. Note that a “+”, “#”, or “-” in the package code indicates RoHS status only. Package drawings may show a different suffix character, ...
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Stereo, High-Power, Class D Amplifiers For the latest package outline information and land patterns www.maxim-ic.com/packages. Note that a “+”, “#”, or “-” in the package code indicates RoHS status only. Package drawings may show a different suffix character, ...
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Stereo, High-Power, Class D Amplifiers For the latest package outline information and land patterns www.maxim-ic.com/packages. Note that a “+”, “#”, or “-” in the package code indicates RoHS status only. Package drawings may show a different suffix character, ...
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... Maxim reserves the right to change the circuitry and specifications without notice at any time. Maxim Integrated Products, 120 San Gabriel Drive, Sunnyvale, CA 94086 408-737-7600 26 2010 Maxim Integrated Products © DESCRIPTION Maxim is a registered trademark of Maxim Integrated Products, Inc. Revision History PAGES ChANGED — ...