MPS EVQ7795-R-00A User manual

EVQ7795-R-00A
2.2MHz Low EMI 24.5W Mono BTL Class-D
Audio Amplifier, AEC-Q100 Evaluation Board
EVQ7795-R-00A Rev. 1.0 MonolithicPower.com 1
10/21/2021 MPS Proprietary Information. Patent Protected. Unauthorized Photocopy and Duplication Prohibited.
© 2021 MPS. All Rights Reserved.
DESCRIPTION
The EVQ7795-R-00A is an evaluation board
designed to demonstrate the capabilities of the
MPQ7795-AEC1, an automotive-grade, low-
EMI, differential analog input, Class D audio
amplifier with I2C diagnostics. The MPQ7795
can drive a mono speaker in a bridge-tied load
(BTL) configuration.
The MPQ7795 employs a BTL structure to
deliver 24.5W of power to 4Ω speakers with a
14.4V power supply. MPS’s Class D audio
amplifiers exhibit the high fidelity of Class AB
amplifiers at high efficiency.
The selectable switching frequency (fSW) can be
set to 330kHz, 384kHz, 470kHz, or 2.2MHz,
and can achieve >90% efficiency at both
470kHz and 2.2MHz.
The MPQ7795 integrates the load diagnostic
function that detects open load, short load, load
short to GND, load short to PVDD. The
diagnostic runs when the device is enabled,
which helps to protect the load and the device.
Full protection features include over-current
protection (OCP), under-voltage protection,
thermal shutdown, and adjustable power
limiting.
The adjustable power limit (PLIMIT) function
sets the output peak-to-peak voltage limit
(VPP_LIMIT) by limiting the duty cycle to a fixed
maximum value. VPLIMIT can be considered the
virtual voltage rail. The power supply input
(PVDD) voltage (VPVDD) is greater than VPLIMIT.
The EVQ7795-R-00A is a fully assembled and
tested evaluation board. The MPQ7795 is a
fully integrated audio amplifier that reduces the
solution size, and is available in a QFN-24
(4mmx4mm) package.
ELECTRICAL SPECIFICATIONS
Parameter Symbol Value Units
Input voltage VEMI 5 to 36 V
FEATURES
 5V to 36V Operating Input Voltage (VIN)
Range
 ±5A Peak Current Output
 Differential Analog Input
 42V Load Dump
 Low 0.02uA Standby Current
 Low 6.5mA Idle Current
 330kHz, 384kHz, 470kHz, or 2.2MHz
Selectable Switching Frequency (fSW)
 Delivers 24.5W into 4Ω Load with 14.4V
Power VDD (PVDD)
 High Power Efficiency:
o Up to 92.6% Efficiency for 8Ω Load
o Up to 90.4% Efficiency for 4Ω Load
 150mΩ power MOSFETs
 Start-Up/Shutdown Pop-Noise Reduction
 Selectable Voltage Gain
 Adjustable Power Limiter
 Open/Short Load Detection
 Output Short to PVDD/Ground Detection
 Over-Current Protection (OCP)
 Under-Voltage Protection (UVP)
 Thermal Shutdown
 Status Reporting via the I2C Interface and
Fault Output Pin (FAULT#)
 Low EMI Meets CISPR 25 Class 5
Specifications with Long Output Cable
 Communicates with Microcontroller Unit
(MCU) via I2C Interface
 Supports 2Ω to 16Ω Speakers
 Available in a QFN-24 (4mmx4mm)
Package
 Available in AEC-Q100 Grade 1
APPLICATIONS
 Automotive Emergency Call (eCall)
Systems
 Telematics Systems
 Audio Infotainment Systems
 Automotive Clusters
A
ll MPS parts are lead-free, halogen-free, and adhere to the RoHS
directive. For MPS green status, please visit the MPS website unde
r
Quality Assurance. “MPS”, the MPS logo, and “Simple, Easy Solutions” are
trademarks of Monolithic Power Systems, Inc. or its subsidiaries.

EVQ7795-R-00A – LOW EMI MONO BTL CLASS-D AMPLIFIER, AEC-Q100 EVAL BOARD
EVQ7795-R-00A Rev. 1.0 MonolithicPower.com 2
10/21/2021 MPS Proprietary Information. Patent Protected. Unauthorized Photocopy and Duplication Prohibited.
© 2021 MPS. All Rights Reserved.
EVQ7795-R-00A EVALUATION BOARD
Efficiency vs. Power Loss
VPVDD = 14.4V, fSW = 1kHz, 20dB gain,
COUT = 1µF, load = 8Ω + 66µH
0
10
20
30
40
50
60
70
80
90
100
0 2 4 6 8 10 12 14
EFFIEIENCY (%)
Power Loss (W)
470kHz, 10uH
2.2MHz, 2.2uH
LxWxH (7.62cmx6.35cmx0.5cm)
Board Number MPS IC Number
EVQ7795-R-00A MPQ7795GRE-AEC1

EVQ7795-R-00A – LOW EMI MONO BTL CLASS-D AMPLIFIER, AEC-Q100 EVAL BOARD
EVQ7795-R-00A Rev. 1.0 MonolithicPower.com 3
10/21/2021 MPS Proprietary Information. Patent Protected. Unauthorized Photocopy and Duplication Prohibited.
© 2021 MPS. All Rights Reserved.
QUICK START GUIDE
The MPQ7795 is set for a 5V to 36V single-supply operating input voltage (VIN) with single-ended signal
inputs. To use different signal inputs, remove the jumpers from JP1. It is recommended to use a 4.7µF
to 10µF VDRV capacitor (CVDRV) for a stable VDRV voltage (VVDRV), especially at extremely high or low
temperatures.
1. Connect the power supply terminals to:
a. Positive (+): VEMI
b. Negative (-): GND
2. Connect the load terminals to:
a. Positive (+): OUT+
b. Negative (-): OUT-
3. The power, signal, and load impedance requirements are listed below:
a. Power supply: 5V to 36V (typically 14.4V).
b. Speaker: 4Ω to 8Ω ( typically 8Ω).
4. Follow the steps below to set up the evaluation board for 14.4V operation:
a. Preset the DC power supply to 14.4V.
b. Connect the output terminals to:
a) Positive (+): OUT+
b) Negative (-): OUT-
c. Connect the DC power supply terminals to:
a) Positive (+): VEMI
b) Negative (-): GND
d. Connect the audio input signal source to:
a) Positive (+): IN+
b) Negative (-): IN-
5. Press the switch (SW1) to disable the evaluation board; release SW1 to enable it. SW1 is enabled
by default. Once SW1 is enabled, the power supply can be turned on and off.
6. Follow the steps below to adjust the gain, switching frequency (fSW), and power limit:
a. Turn on the DC power supply.
b. Open the I2C to fill in 6C PMBus Address.
c. Set the desired gain, fSW, and power limit for the application.
7. The MPQ7795’s fSW is 470kHz by default. If 2.2MHz is required during start-up, follow the steps
below:
a. Pull the MUTE pin high, then turn on the DC power supply.
b. Set fSW to 2.2MHz via the I2C.
c. Pull MUTE low.
8. For typical applications, remove the jumper (JP2).

EVQ7795-R-00A – LOW EMI MONO BTL CLASS-D AMPLIFIER, AEC-Q100 EVAL BOARD
EVQ7795-R-00A Rev. 1.0 MonolithicPower.com 4
10/21/2021 MPS Proprietary Information. Patent Protected. Unauthorized Photocopy and Duplication Prohibited.
© 2021 MPS. All Rights Reserved.
EVALUATION BOARD SCHEMATIC
JP2
SW1
2, 3, 4,5
IN
JP1
100kΩ
R5
1µF/16V
C29
1µF/16V
C30
1µF/16V
C28
0.1uF/50V
C15
1µF/50V
C14
100µF/50V
C11 220nF/16V
C17
220nF/16V
C20
C24
100nF
C18
V
PVDD
100kΩ
R1
Short JP1 for SE Input Signal
IN+
IN-
OUT+
OUT-
VEMI
FAULT
EN
GND
AVDD
FAULT#
11
EN
10
INP
13
AGND
6
8
AVDD
5
VDRV 4
VCP 20
INN
14
BSTB 16
SWB 17, 18
BSTA 3 PVDD
SWA 1, 2
PGND
19, 24
21, 22
U1
MPQ7795
0.1µF/50V
C13
1µF/50V
C12
7SDA
SCLK
10kΩ
R6
AVDD
10kΩ
R4
AVDD
C27
4.7µF/16V
MUTE 9
C16
1µF/16V
PVDD
MUTE
VEMI
C6
L1
10nF
C1
10nF
C2
V
PVDD
C5
C3 C4
(36V Max)
R7
AVDD
1µH
AVDD
2
1
3
V
VDRV
V
VDRV
D1
1N4148
D2 1N4148
V
VDRV
L2
10µH
L3
10µH
C23
1µF/50V
C19
1µF/50V
PVDD
10nF 10nF NS NS
1nF/50V
C26
C7 C8
10µF 10µF
100nF
C25
NS
C22
NS
SW2
1nF/50V
C21
0Ω
R3
0Ω
R2
Input EMI Filter
If MUTE = AVDD, No Switching
If MUTE = GND, Switching
I
2
C Interface
C22, C25
f
SW
NS
470kHz
2.2MHz 1nF
Output EMI filter
Low If Fault is Detected
5V
5V
D1 and D2 Are Not Required for 470kHz Applications
L2, L3
10µH
4.7µH
Figure 1: Evaluation Board Schematic

EVQ7795-R-00A – LOW EMI MONO BTL CLASS-D AMPLIFIER, AEC-Q100 EVAL BOARD
EVQ7795-R-00A Rev. 1.0 MonolithicPower.com 5
10/21/2021 MPS Proprietary Information. Patent Protected. Unauthorized Photocopy and Duplication Prohibited.
© 2021 MPS. All Rights Reserved.
PACKAGE REFERENCE
TOP VIEW
SWA
SWA
BSTA
VDRV
AVDD
AGND
PGND
NC
PVDD PVDD
VCP
PGND
SWB
SWB
BSTB
NC
INP
INN
NC
FAULT#
EN
MUTE
SCLK
SDA
1
2
3
4
5
6
78 9 10 11 12
13
14
15
16
17
18
192021
222324
QFN-24 (4mmx4mm)

EVQ7795-R-00A – LOW EMI MONO BTL CLASS-D AMPLIFIER, AEC-Q100 EVAL BOARD
EVQ7795-R-00A Rev. 1.0 MonolithicPower.com 6
10/21/2021 MPS Proprietary Information. Patent Protected. Unauthorized Photocopy and Duplication Prohibited.
© 2021 MPS. All Rights Reserved.
EVQ7795-R-00A BILL OF MATERIALS
Qty Des Value Description Package Manufacturer Manufacturer P/N
1 C11 100µF Electrolytic capacitor, 50V SMD Panasonic EEHZC1H101P
5
C12, C14,
C16, C19,
C23
1µF Ceramic capacitor, 50V, X7R 0805 Murata GRM21BR71E105KA99L
4 C12, C14,
C19, C23 100nF Ceramic capacitor, 50V, X7R 0603 Murata GRM188R71H104KA93D
1 C16 1µF Ceramic capacitor, 16V, X7R 0805 Murata GRM21BR71C105KA01L
4 C9, C10,
C13, C15 100nF Ceramic capacitor, 50V, X7R 0603 TDK GRM188R71H104KA93D
2 C21, C26 1nF Ceramic capacitor, 50V, X7R 0805 TDK C2012X7R1H102K
1 C27 4.7µF Ceramic capacitor, 25V, X5R 0603 Murata GRM188R61E475KE11D
3 C28, C29,
C30 1µF Film resistor, 1% 0603 Murata GRM188R71C105KA12D
2 C18, C24 100nF Ceramic capacitor, 50V, X7R 0805 Samsung CL21B104KBCNNNC
0 C22, C25 NS
2 C17, C20 220nF Ceramic capacitor, 16V, X7R 0402 Murata GRM155R71C224KA12D
4 C1, C2,
C3, C4 10nF Ceramic capacitor, 50V, X7R 0603 Murata GRM188R71H103JA01D
0 C5, C6 NS
2 C7, C8 10µF Ceramic capacitor, 50V, X7R 1206 Murata GRM31CR61H106KA12L
2 R2, R3 0Ω Film resistor, 5% 0603 Yageo RC0603JR-070RL
3 R1, R5,
R7 100kΩ Film resistor, 1% 0603 Yageo RC0603FR-07100KL
2 R4, R6 10kΩ Film resistor, 1% 0603 Yageo RC0603FR-0710KL
2 D1, D2 75V Diode, 0.15A SOD323
On
Semiconductor
(Fairchild)
1N4148WS
1 L1 1µH Inductor, 14.6m, 9.6A SMD Coilcraft XEL4020-102MEB
2 L2, L3 10µH Inductor, 40.9m, 3.6A SMD Coilcraft XEL5050-103MEC
1 U1 MPQ7795 Class D Amplifier
QFN-24
(4mmx
4mm)
MPS MPQ7795GRE-AEC1

EVQ7795-R-00A – LOW EMI MONO BTL CLASS-D AMPLIFIER, AEC-Q100 EVAL BOARD
EVQ7795-R-00A Rev. 1.0 MonolithicPower.com 7
10/21/2021 MPS Proprietary Information. Patent Protected. Unauthorized Photocopy and Duplication Prohibited.
© 2021 MPS. All Rights Reserved.
EVB TEST RESULTS
Performance curves and waveforms are tested on the evaluation board. VPVDD = 14.4V,
fSW = 470kHz, LOUT = 10µH, COUT = 1µF, fIN = 1kHz, gain = 20dB, TA = 25°C, unless otherwise noted.
Total Harmonic Distortion +
Noise (THD + N) vs. Input
Signal Frequency
Load = 8Ω + 66μH
Total Harmonic Distortion +
Noise (THD + N) vs. Input
Signal Frequency
Load = 4Ω + 33μH
Total Harmonic Distortion +
Noise (THD + N) vs. POUT
Load = 8Ω + 66μH
Total Harmonic Distortion +
Noise (THD + N) vs. POUT
Load = 4Ω + 33μH
0.01
20
0.02
0.05
0.1
0.2
0.5
1
2
5
10
%
60m 30100m 200m 500m 1 2 5 10 20
W
0.01
20
0.02
0.05
0.1
0.2
0.5
1
2
5
10
%
60m 30100m 200m 500m 1 2 5 10 20
W
Input Signal Frequency
Response
1W, load = 8Ω + 66μH
Input Signal Frequency
Response
1W, load = 4Ω + 33μH
-10
+4
-8
-6
-4
-2
+0
+2
d
B
r
A
10 20k20 50 100 200 500 1k 2k 5k 10k
Hz
-10
+4
-8
-6
-4
-2
+0
+2
d
B
r
A
10 20k20 50 100 200 500 1k 2k 5k 10k
Hz
0.001
20
0.002
0.005
0.01
0.02
0.05
0.1
0.2
0.5
1
2
5
10
%
20 20k50 100 200 500 1k 2k 5k 10k
Hz
Po=10W
Po=5W
Po=1W
0.001
20
0.01
0.1
1
5
%
20 20k50 100 200 500 1k 2k 5k 10k
Hz
Po=10W
Po=5W
Po=1W

EVQ7795-R-00A – LOW EMI MONO BTL CLASS-D AMPLIFIER, AEC-Q100 EVAL BOARD
EVQ7795-R-00A Rev. 1.0 MonolithicPower.com 8
10/21/2021 MPS Proprietary Information. Patent Protected. Unauthorized Photocopy and Duplication Prohibited.
© 2021 MPS. All Rights Reserved.
EVB TEST RESULTS (continued)
Performance curves and waveforms are tested on the evaluation board. VPVDD = 14.4V,
fSW = 470kHz, LOUT = 10µH, COUT = 1µF, fIN = 1kHz, gain = 20dB, TA = 25°C, unless otherwise noted.
Notes:
1) For 470kHz fSW, inductor: XAL6060-103MEB, 10µH, DCR = 27mΩ.
2) For 2.2MHz fSW, inductor: XAL4030-222MEB, 2.2µH, DCR = 35.2mΩ.
Power Supply Rejection Ratio
VAC_RIPPLE = 1VPP
Fast Fourier Transform (FFT)
Noise Floor
Load = 8Ω + 66μH
-80
+0
-60
-40
-20
d
B
20 20k50 100 200 500 1k 2k 5k 10k
Hz
TTTT
Gain=20dB
Gain=26dB
Gain=32dB
Gain=36dB
-120
+0
-100
-80
-60
-40
-20
d
B
V
2k 20k4k 6k 8k 10k 12k 14k 16k 18k
Hz
Efficiency vs. Power Loss
Load = 8Ω + 66μH (1) (2)
Efficiency vs. Power Loss
Load = 4Ω + 33μH (1) (2)
0
10
20
30
40
50
60
70
80
90
100
02468101214
EFFIEIENCY (%)
Power Loss (W)
470kHz, 10uH
2.2MHz, 2.2uH
0
10
20
30
40
50
60
70
80
90
100
0 5 10 15 20 25
EFFIEIENCY (%)
Power Loss (W)
470kHz, 10uH
2.2MHz, 2.2uH

EVQ7795-R-00A – LOW EMI MONO BTL CLASS-D AMPLIFIER, AEC-Q100 EVAL BOARD
EVQ7795-R-00A Rev. 1.0 MonolithicPower.com 9
10/21/2021 MPS Proprietary Information. Patent Protected. Unauthorized Photocopy and Duplication Prohibited.
© 2021 MPS. All Rights Reserved.
EVB TEST RESULTS (continued)
Performance curves and waveforms are tested on the evaluation board. VPVDD = 14.4V,
fSW = 2.2MHz, LOUT = 4.7μH, COUT = 1μF, fIN = 1kHz, gain = 20dB, TA = 25°C, unless otherwise noted.
Total Harmonic Distortion +
Noise (THD + N) vs. Input
Signal Frequency
Load = 8Ω + 66μH
Total Harmonic Distortion +
Noise (THD + N) vs. Input
Signal Frequency
Load = 4Ω + 33μH
Total Harmonic Distortion +
Noise (THD + N) vs. POUT
Load = 8Ω + 66μH
Total Harmonic Distortion +
Noise (THD + N) vs. POUT
Load = 4Ω + 33μH
0.01
20
0.02
0.05
0.1
0.2
0.5
1
2
5
10
%
60m 30100m 200m 500m 1 2 5 10 20
W
0.01
20
0.02
0.05
0.1
0.2
0.5
1
2
5
10
%
60m 30100m 200m 500m 1 2 5 10 20
W
Input Signal Frequency
Response
1W, load = 8Ω + 66μH
Input Signal Frequency
Response
1W, load = 4Ω + 33μH
-10
+4
-8
-6
-4
-2
+0
+2
d
B
r
A
10 20k20 50 100 200 500 1k 2k 5k 10k
Hz
-10
+4
-8
-6
-4
-2
+0
+2
d
B
r
A
10 20k20 50 100 200 500 1k 2k 5k 10k
Hz
0.001
20
0.01
0.1
1
5
%
20 20k50 100 200 500 1k 2k 5k 10k
Hz
Po=10W
Po=5W
Po=1W
0.001
20
0.01
0.1
1
5
%
20 20k50 100 200 500 1k 2k 5k 10k
Hz
Po=10W
Po=5W
Po=1W

EVQ7795-R-00A – LOW EMI MONO BTL CLASS-D AMPLIFIER, AEC-Q100 EVAL BOARD
EVQ7795-R-00A Rev. 1.0 MonolithicPower.com 10
10/21/2021 MPS Proprietary Information. Patent Protected. Unauthorized Photocopy and Duplication Prohibited.
© 2021 MPS. All Rights Reserved.
EVB TEST RESULTS (continued)
Performance curves and waveforms are tested on the evaluation board. VPVDD = 14.4V,
fSW = 470kHz, LOUT = 10µH, COUT = 1µF, fIN = 1kHz, gain = 20dB, TA = 25°C, unless otherwise noted.
Steady State
Load = 8Ω + 66μH, no input signal
Steady State
Load = 8Ω + 66μH, THD + N = 0.1%,
POUT = 94.5mW
CH1: VSWA
CH2: VSWB
CH3: Input
Signal
CH4: ILOAD
CH1: VSWA
CH2: VSWB
Steady State
Load = 8Ω + 66μH, THD + N = 1%,
POUT = 11.3W
Steady State
Load = 8Ω + 66μH, THD + N = 10%,
POUT = 13.6W
CH3: Input
Signal
CH4: ILOAD
CH1: VSWA
CH2: VSWB
CH3: Input
Signal
CH4: ILOAD
CH1: VSWA
CH2: VSWB
Start-Up through VIN
Load = 8Ω + 66μH, THD + N = 1%,
POUT = 11.3W
Shutdown through VIN
Load = 8Ω + 66μH, THD + N = 1%,
POUT = 11.3W
CH3: VPVDD
CH1: VSWA
CH2: VSWB
CH4: VFAULT
CH3: VPVDD
CH1: VSWA
CH2: VSWB
CH4: VFAULT

EVQ7795-R-00A – LOW EMI MONO BTL CLASS-D AMPLIFIER, AEC-Q100 EVAL BOARD
EVQ7795-R-00A Rev. 1.0 MonolithicPower.com 11
10/21/2021 MPS Proprietary Information. Patent Protected. Unauthorized Photocopy and Duplication Prohibited.
© 2021 MPS. All Rights Reserved.
EVB TEST RESULTS (continued)
Performance curves and waveforms are tested on the evaluation board. VPVDD = 14.4V,
fSW = 470kHz, LOUT = 10µH, COUT = 1µF, fIN = 1kHz, gain = 20dB, TA = 25°C, unless otherwise noted.
Start-Up through VIN
Load = 8Ω + 66μH, THD + N = 10%,
POUT = 13.6W
Shutdown through VIN
Load = 8Ω + 66μH, THD + N = 10%,
POUT = 13.6W
CH3: VPVDD
CH1: VSWA
CH2: VSWB
CH4: VFAULT
CH3: VPVDD
CH1: VSWA
CH2: VSWB
CH4: VFAULT
Start-Up through EN
Load = 8Ω + 66μH, THD + N = 1%,
POUT = 11.3W
Shutdown through EN
Load = 8Ω + 66μH, THD + N = 1%,
POUT = 11.3W
CH3: VEN
CH1: VSWA
CH2: VSWB
CH4: VFAULT
CH3: VEN
CH1: VSWA
CH2: VSWB
CH4: VFAULT
Start-Up through EN
Load = 8Ω + 66μH, THD + N THD = 10%,
POUT = 13.6W
Shutdown through EN
Load = 8Ω + 66μH, THD + N = 10%,
POUT = 13.6W
CH3: VEN
CH1: VSWA
CH2: VSWB
CH4: VFAULT
CH3: VEN
CH1: VSWA
CH2: VSWB
CH4: VFAULT

EVQ7795-R-00A – LOW EMI MONO BTL CLASS-D AMPLIFIER, AEC-Q100 EVAL BOARD
EVQ7795-R-00A Rev. 1.0 MonolithicPower.com 12
10/21/2021 MPS Proprietary Information. Patent Protected. Unauthorized Photocopy and Duplication Prohibited.
© 2021 MPS. All Rights Reserved.
EVB TEST RESULTS (continued)
Performance curves and waveforms are tested on the evaluation board. VPVDD = 14.4V,
fSW = 470kHz, LOUT = 10µH, COUT = 1µF, fIN = 1kHz, gain = 20dB, TA = 25°C, unless otherwise noted.
SCP Entry
OUT- short to GND, load = 8Ω + 66μH,
THD + N = 1%, POUT = 11.3W
SCP Recovery
OUT- short to GND, load = 8Ω + 66μH,
THD + N = 1%, POUT = 11.3W
CH3: VFAULT
CH1: VSWA
CH2: VSWB
CH4: ILOAD
CH3: VFAULT
CH1: VSWA
CH2: VSWB
CH4: ILOAD
SCP Entry
OUT- short to GND, load = 8Ω + 66μH,
THD + N = 10%, POUT = 13.6W
SCP Recovery
OUT- short to GND, load = 8Ω + 66μH,
THD + N = 10%, POUT = 13.6W
CH3: VFAULT
CH1: VSWA
CH2: VSWB
CH4: ILOAD
CH3: VFAULT
CH1: VSWA
CH2: VSWB
CH4: ILOAD
SCP Entry
OUT+ short to GND load = 8Ω + 66μH,
THD + N = 1%, POUT = 11.3W
SCP Recovery
OUT+ short to GND, load = 8Ω + 66μH,
THD + N = 1%, POUT = 11.3W
CH3: VFAULT
CH1: VSWA
CH2: VSWB
CH4: ILOAD
CH3: VFAULT
CH1: VSWA
CH2: VSWB
CH4: ILOAD

EVQ7795-R-00A – LOW EMI MONO BTL CLASS-D AMPLIFIER, AEC-Q100 EVAL BOARD
EVQ7795-R-00A Rev. 1.0 MonolithicPower.com 13
10/21/2021 MPS Proprietary Information. Patent Protected. Unauthorized Photocopy and Duplication Prohibited.
© 2021 MPS. All Rights Reserved.
EVB TEST RESULTS (continued)
Performance curves and waveforms are tested on the evaluation board. VPVDD = 14.4V,
fSW = 470kHz, LOUT = 10µH, COUT = 1µF, fIN = 1kHz, gain = 20dB, TA = 25°C, unless otherwise noted.
SCP Entry
OUT+ short to GND, load = 8Ω + 66μH,
THD + N = 10%, POUT =13.6W
SCP Recovery
OUT+ short to GND, load = 8Ω + 66μH,
THD + N = 10%, POUT =13.6W
CH3: VFAULT
CH1: VSWA
CH2: VSWB
CH4: ILOAD
CH3: VFAULT
CH1: VSWA
CH2: VSWB
CH4: ILOAD
SCP Entry
OUT+ short to OUT-, load = 8Ω + 66μH,
THD + N = 1%, POUT = 11.3W
SCP Recovery
OUT+ short to OUT, load = 8Ω + 66μH,
THD + N = 1%, POUT = 11.3W
CH3: VFAULT
CH1: VSWA
CH2: VSWB
CH4: ILOAD
CH3: VFAULT
CH1: VSWA
CH2: VSWB
CH4: ILOAD
SCP Entry
OUT+ short to OUT-, load = 8Ω + 66μH,
THD + N = 10%, POUT = 13.6W
SCP Recovery
OUT+ short to OUT-, load = 8Ω + 66μH,
THD + N = 10%, POUT = 13.6W
CH3: VFAULT
CH1: VSWA
CH2: VSWB
CH4: ILOAD
CH3: VFAULT
CH1: VSWA
CH2: VSWB
CH4: ILOAD

EVQ7795-R-00A – LOW EMI MONO BTL CLASS-D AMPLIFIER, AEC-Q100 EVAL BOARD
EVQ7795-R-00A Rev. 1.0 MonolithicPower.com 14
10/21/2021 MPS Proprietary Information. Patent Protected. Unauthorized Photocopy and Duplication Prohibited.
© 2021 MPS. All Rights Reserved.
EVB TEST RESULTS (continued)
Performance curves and waveforms are tested on the evaluation board. VPVDD = 14.4V,
fSW = 470kHz, LOUT = 10µH, COUT = 1µF, fIN = 1kHz, gain = 20dB, TA = 25°C, unless otherwise noted.
SCP Entry
OUT+ short to PVDD, load = 8Ω + 66μH,
THD + N = 1%, POUT = 11.3W
SCP Recovery
OUT+ short to PVDD, load = 8Ω + 66μH,
THD + N = 1%, POUT = 11.3W
CH3: VFAULT
CH1: VSWA
CH2: VSWB
CH4: ILOAD
CH3: VFAULT
CH1: VSWA
CH2: VSWB
CH4: ILOAD
SCP Entry
OUT+ short to PVDD, load = 8Ω + 66μH,
THD + N = 10%, POUT = 13.6W
SCP Recovery
OUT+ short to PVDD, load = 8Ω + 66μH,
THD + N = 10%, POUT = 13.6W
CH3: VFAULT
CH1: VSWA
CH2: VSWB
CH4: ILOAD
CH3: VFAULT
CH1: VSWA
CH2: VSWB
CH4: ILOAD
SCP Entry
OUT- short to PVDD, load = 8Ω + 66μH,
THD + N = 1%, POUT = 11.3W
SCP Recovery
OUT- short to PVDD, load = 8Ω + 66μH,
THD + N = 1%, POUT = 11.3W
CH3: VFAULT
CH1: VSWA
CH2: VSWB
CH4: ILOAD
CH3: VFAULT
CH1: VSWA
CH2: VSWB
CH4: ILOAD

EVQ7795-R-00A – LOW EMI MONO BTL CLASS-D AMPLIFIER, AEC-Q100 EVAL BOARD
EVQ7795-R-00A Rev. 1.0 MonolithicPower.com 15
10/21/2021 MPS Proprietary Information. Patent Protected. Unauthorized Photocopy and Duplication Prohibited.
© 2021 MPS. All Rights Reserved.
EVB TEST RESULTS (continued)
Performance curves and waveforms are tested on the evaluation board. VPVDD = 14.4V,
fSW = 470kHz, LOUT = 10µH, COUT = 1µF, fIN = 1kHz, gain = 20dB, TA = 25°C, unless otherwise noted.
SCP Entry
OUT- short to PVDD, load = 8Ω + 66μH,
THD + N = 10%, POUT = 13.6W
SCP Recovery
OUT- short to PVDD, load = 8Ω + 66μH,
THD + N = 10%, POUT = 13.6W
CH3: VFAULT
CH1: VSWA
CH2: VSWB
CH4: ILOAD
CH3: VFAULT
CH1: VSWA
CH2: VSWB
CH4: ILOAD

EVQ7795-R-00A – LOW EMI MONO BTL CLASS-D AMPLIFIER, AEC-Q100 EVAL BOARD
EVQ7795-R-00A Rev. 1.0 MonolithicPower.com 16
10/21/2021 MPS Proprietary Information. Patent Protected. Unauthorized Photocopy and Duplication Prohibited.
© 2021 MPS. All Rights Reserved.
PCB LAYOUT
Figure 2: Top Silk and Top Layer Figure 3: Mid-Layer 1
Figure 4: Mid-Layer 2 Figure 1: Bottom Layer and Bottom Silk

EVQ7795-R-00A – LOW EMI MONO BTL CLASS-D AMPLIFIER, AEC-Q100 EVAL BOARD
Notice: The information in this document is subject to change without notice. Please contact MPS for current specifications.
Users should warrant and guarantee that third-party Intellectual Property rights are not infringed upon when integrating MPS
products into any application. MPS will not assume any legal responsibility for any said applications.
EVQ7795-R-00A Rev. 1.0 MonolithicPower.com 17
10/21/2021 MPS Proprietary Information. Patent Protected. Unauthorized Photocopy and Duplication Prohibited.
© 2021 MPS. All Rights Reserved.
Revision History
Revision # Revision
Date Description Pages Updated
1.0 10/21/2021 Initial Release -