SG Micro SGM4703 - Electrical Characteristics

High-Power Stereo Class-D Audio Power Amplifier
SGM4703 with Adjustable Power Limit and Automatic Level Control
8
DECEMBER 2022
SG Micro Corp
www.sg-micro.com
ELECTRICAL CHARACTERISTICS
(Minimum and Maximum values are at T
A
= -40℃ to +85℃, V
DD
= 12V, f = 1kHz, Load = 4Ω + 33µH, C
IN
= 4 × 1µF, R
INE
= 4 × 0Ω,
GAIN = NC (A
V
= 26dB), FREQ = NC (f
PWM
= 360kHz), MODS = NC (SSM), ALC shorted to GND (ALC-1), V
PLIMIT
= V
GVDD
, C
PVDD
=
2 × (10nF + 1μF + 220μF), C
AVDD
= 1µF, C
GVDD
= 1µF, C
B
= 4 × 0.1µF, both channels driven, typical values are measured at T
A
=
+25℃, unless otherwise specified.)
PARAMETER SYMBOL CONDITIONS MIN TYP MAX UNITS
Supply Voltage V
DD
PVDD, AVDD 5 26 V
Supply Quiescent Current I
VDD
V
PVDD
= 12V, Inputs AC-grounded, No Load 15
mA
V
PVDD
= 26V, Inputs AC-grounded, No Load 22 37
Mute Current I
MUTE
PLIMIT = GND, No Load 8 12 mA
Shutdown Current I
SD
V
PVDD
= 26V, V
EN
= 0V
SSM, MODS = NC 55 100
µA
DSM, MODS = GND 70 120
Supply Voltage UVLO Detection V
UVLOUP
V
DD
Rising 4.60 4.85 V
Supply Voltage UVLO Release V
UVLODN
V
DD
Falling 4.00 4.30 V
Supply Voltage OVP Detection V
OVPUP
V
DD
Rising 28.0 30.5 V
Supply Voltage OVP Release V
OVPDN
V
DD
Falling 25.0 26.5 V
Voltage Regulator Output V
GVDD
No Load 5.6 V
Input Common-Mode Bias V
COMM
INPL/R, INNL/R 2.8 V
Digital Low Input Voltage V
IL
EN, MODS 0.8 V
Digital High Input Voltage V
IH
EN 2 V
AVDD
V
MODS 2 V
GVDD
Digital Low Output Voltage V
OL
FAULTB, R
PULLUP
= 100kΩ, V
DD
= 18V 0.25 V
Pull-Down Resistor to Ground R
DOWN
EN, MODS, ALC, GAIN, FREQ 250 kΩ
Pull-Up Resistor to GVDD R
UP
MODS 250 kΩ
Output Resistance in Shutdown R
OUT-SD
At VOPL/R, VONL/R, EN = Low 5 kΩ
Voltage Level at
GAIN, FREQ, ALC Pins
V
GAIN
,
V
FREQ
,
V
ALC
Open 2.5
V
Shorted to GND 0
68kΩ to GND 0.55
300kΩ to GND 1.4
Internal Input Resistance at
INPL/R, INNL/R Pins
R
INI
Open 30
kΩ
R
GAIN
= 0kΩ 20
R
GAIN
= 68kΩ 12
R
GAIN
= 300kΩ 60
Voltage Gain A
V
Open 26
dB
R
GAIN
= 0kΩ 30
R
GAIN
= 68kΩ 34
R
GAIN
= 300kΩ 20
PWM Frequency f
SW
Open or R
FREQ
= 0kΩ 360
kHz
R
FREQ
= 68kΩ or R
FREQ
= 300kΩ 500
Over-Current Limit I
LIMIT
Dual BTL Configuration 8.8 A/CH
PBTL Configuration 13 A
Over-Temperature Threshold T
OTSD
160
℃
Over-Temperature Hysteresis T
HYS
20
℃