TDA7492 STMicroelectronics, TDA7492 Datasheet - Page 11

• Manufacturer Part Number: TDA7492
• Description: IC, AMP, AUDIO, CLASS D, 36POWERSO
• Manufacturer: STMicroelectronics

Specifications of TDA7492

• Amplifier Class: D
• No. Of Channels: 2
• Supply Voltage Range: 8V To 26V
• Load Impedance: 8ohm
• Operating Temperature Range: 0°C To +70°C
• Amplifier Case Style: PowerSO
• No. Of Pins: 36
• Svhc: No SVHC
• Output Power: 40W
• Thd + N: 0.1% @ 1W, 8ohm, VCC=25V
• Rohs Compliant: Yes
• Lead Free Status / RoHS Status: Lead free / RoHS Compliant

TDA7492
4
4.1
Characterization curves
The general test conditions used for producing the characterization curves can be
summarized as follows:
Test board: SZ LAB TDA7492 slug-up demo board
Test frequency: 1 kHz (also 100 Hz for THD vs. output power only)
Output power: 1 W
Figure 28 on page 22
next sections, were measured.
Characterizations for 6-Ω loads
Figure 3.
For 6-Ω loads
–
–
For 8-Ω loads
–
–
For 4-Ω loads
–
–
Test conditions:
Vcc = 15 - 25 V,
RL = 6 Ω,
Rosc = 39 kΩ, Cosc = 100 nF,
f = 1 kHz,
Gv = 30 dB,
Tamb = 25r C
Specification limit:
Typical:
Vs = 25 V, RL = 6 Ω,
Po = 50 W atTHD = 10%,
Po = 40 W atTHD = 1%
test voltage: 25 V
LC filter: L = 22 µH and C = 220 nF
test voltage: 25 V
LC filter: L = 33 µH and C = 220 nF
test voltage: 20 V
LC filter: L = 15 µH and C = 470 nF.
Output power vs. supply voltage
shows the circuit with which the characterization curves, shown in the
Doc ID 14926 Rev 4
Figure 27 on page 21
shows the PCB layout.
10% THD
Characterization curves
1% THD
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