Document
TDA7498E
Datasheet
160-watt + 160-watt dual BTL class-D audio amplifier
PowerSSO-36 exposed pad up
Maturity status link TDA7498E
Device summary
Order code
TDA7498ETR
Operating temperature range
0 to 70 °C
Package
PowerSSO36 (EPU)
Packing
Tape and reel
Features
• 160-W + 160-W output power at THD = 10% with RL = 4 Ω and VCC = 36 V • 1 x 220 W output power mono parallel BTL at THD = 10% with RL = 3 Ω and
VCC = 36 V • Wide-range single-supply operation (14 - 36 V) • High efficiency (η = 85%) • Parallel BTL function using the MODE pin • Four selectable, fixed gain settings of nominally 23.8 dB, 29.8 dB, 33.3 dB and
35.8 dB • Differential inputs minimize common-mode noise • Standby and mute features • Smart protection • Thermal overload protection • Small offset less than 20 mV
Description
The TDA7498E is a dual BTL class-D audio amplifier with a single power supply designed for home systems and active speaker applications.
It comes in a 36-pin PowerSSO package with exposed pad up (EPU) to facilitate mounting a separate heatsink.
DS8807 - Rev 4 - June 2020 For further information contact your local STMicroelectronics sales office.
www.st.com
TDA7498E
Device block diagram
1
Device block diagram
The figure below shows the block diagram of one of the two identical channels of the TDA7498E. Figure 1. Internal block diagram (showing one channel only)
DS8807 - Rev 4
page 2/17
2
Pin description
2.1
Pinout
Figure 2. Pin connections (top view, PCB view)
36 VSS 35 SVCC 34 VREF 33 INNB 32 INPB 31 MODE 30 GAIN 29 SVR 28 DIAG 27 SGND 26 VDDS 25 SYNCLK 24 ROSC 23 INNA 22 INPA 21 MUTE 20 STBY 19 VDDPW
EP, exposedpad Connect to ground
SUB_GND 1 OUTPB 2 OUTPB 3 PGNDB 4 PGNDB 5 PVCCB 6 PVCCB 7 OUTNB 8 OUTNB 9 OUTNA 10 OUTNA 11 PVCCA 12 PVCCA 13 PGNDA 14 PGNDA 15 OUTPA 16 OUTPA 17 PGND 18
TDA7498E
Pin description
DS8807 - Rev 4
page 3/17
2.2
Pin list
Number 1 2,3 4,5 6,7 8,9
10,11 12,13 14,15 16,17
18 19 20 21 22 23 24 25 26 27 28 29 30 31 32 33 34 35 36 -
Name SUB_GND
OUTPB PGNDB PVCCB OUTNB OUTNA PVCCA PGNDA OUTPA PGND VDDPW STBY MUTE
INPA INNA ROSC SYNCLK VDDS SGND DIAG SVR GAIN MODE INPB INNB VREF SVCC VSS
EP
TDA7498E
Pin list
Table 1. Pin description list
Type PWR
O PWR PWR
O O PWR PWR O PWR O I I I I O I/O O PWR O O I I I I O PWR O -
Description Connect to the frame Positive PWM for right channel Power stage ground for right channel Power supply for right channel Negative PWM output for right channel Negative PWM output for left channel Power supply for left channel Power stage ground for left channel Positive PWM output for left channel Power stage ground 3.3-V (nominal) regulator output referred to ground for power stage Standby mode control Mute mode control Positive differential input of left channel Negative differential input of left channel Master oscillator frequency-setting pin Clock in/out for external oscillator 3.3-V (nominal) regulator output referred to ground for signal blocks Signal ground Open-drain diagnostic output Supply voltage rejection Gain setting input Enables stereo or mono BTL mode of operation Positive differential input of right channel Negative differential input of right channel Half VDDS (nominal) referred to ground Signal power supply 3.3-V (nominal) regulator output referred to power supply Exposed pad for heatsink, to be connected to ground
DS8807 - Rev 4
page 4/17
TDA7498E
Electrical specifications
3
Electrical specifications
3.1
Absolute maximum ratings
Table 2. Absolute maximum ratings
Symbol
Parameter
Value
Unit
VCC
DC supply voltage for pins PVCCA, PVCCB, SVCC
45
V
VI
Voltage limits for input pins STBY, MUTE, INNA, INPA, INNB, INPB, GAIN, MODE
-0.3 to 4.0
V
Tj
Operating junction temperature
0 to 150
°C
Top
Operating ambient temperature
0 to 70
°C
Tstg
Storage temperature
-40 to 150
°C
3.2
Thermal data
Table 3. Thermal data
Symbol Rth j-case
Parameter Thermal resistance, junction to case
Min. -
Typ. 3.0
Max.
Unit °C/W
3.3
Recommended operating conditions
Table 4. Recommended operating conditions
Symbol
Parameter
Min
Typ
Max
Unit
VCC
Supply voltage for pins PVCCA, PVCCB, SVCC
14
-
39
V
Tamb
Ambient operating temperature
0
-
70
°C
3.4
Electrical specifications
Unless otherwise stated, the values in the table below are specified for the conditions: VCC = 36 V, RL = 4 Ω, ROSC = R3 = 39 kΩ, C8 = 100 nF, f = 1 kHz, GV = 23.6 dB Tamb = 25 °C.
Symbol Iq
IqSTBY VOS IOCP
Tj
Ri VUVP RdsON
Table 5. Electrical specifications
Parameter Total quiescent current
Condition No LC filter, no load
Quiescent current in standby
Output offset voltage
Overcurrent protection threshold Junction temperature at thermal shutdown Input resistance
Vi = 0, Av = 23.6 dB, no load RL = 0 Ω Differential input
Undervoltage protection threshold Power transistor on-resistance
High side
Min. Typ. Max. Unit
-
60
mA
-
1
µA
-20
-
20
mV
10
11
14
A
140
150
160
°C
69.