TDA7491HV13TR STMicroelectronics, TDA7491HV13TR Datasheet - Page 33

• Manufacturer Part Number: TDA7491HV13TR
• Description: IC AMP AUD CLASS D BTL PWRSSO36
• Manufacturer: STMicroelectronics
• Type: Class Dr

Specifications of TDA7491HV13TR

• Output Type: 2-Channel
• Max Output Power X Channels @ Load: 20W x 2 @ 8 Ohm
• Voltage - Supply: 5 V ~ 18 V
• Features: Depop, Differential Inputs, Mute, Short-Circuit and Thermal Protection, Standby
• Mounting Type: Surface Mount
• Package / Case: *
• Amplifier Class: D
• No. Of Channels: 2
• Output Power: 20W
• Supply Voltage Range: 5V To 18V
• Thd + N: 0.1% @ 1W, 8ohm, VCC=18V
• Load Impedance: 8ohm
• Operating Temperature Range: 0°C To +70°C
• Rohs Compliant: Yes
• Lead Free Status / RoHS Status: Lead free / RoHS Compliant
• Other names: 497-11055-2

TDA7491HV
7
7.1
Application information
Mode selection
The three operating modes , defined below, of the TDA7491HV are set by the two inputs
STBY (pin 20) and MUTE (pin 21) as shown
●
●
●
The protection functions of the TDA7491HV are implemented by pulling down the voltages
of the STBY and MUTE inputs shown in
pins must be limited to 200 µA.
Table 7.
1. refer to VSTBY and VMUTE in
Figure 51. Standby and mute circuits
Figure 52. Turn-on/off sequence for minimizing speaker “pop”
Standby
Mute
Play
Standby mode: all circuits are turned off, very low current consumption.
Mute mode: inputs are connected to ground and the positive and negative PWM
outputs are at 50% duty cycle.
Play mode: the amplifiers are active.
Mode
Mode settings
0 V
0 V
Standby
Mute
3.3 V
3.3 V
Table 5: Electrical specifications on page 10
Doc ID 14242 Rev 5
L
H
H
(1)
Voltage level on pin STBY
(1)
R2
30 kΩ
R4
30 kΩ
Figure
inTable 7: Mode settings on page
51. The input current of the corresponding
C7
2.2 µF
C15
2.2 µF
STBY
MUTE
X (don’t care)
L
H
TDA7491HV
Voltage level on pin MUTE
Application information
33.
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