TDA2050V STMicroelectronics, TDA2050V Datasheet - Page 11

• Manufacturer Part Number: TDA2050V
• Description: IC AMP AUDIO PWR HIFI PENTAWATT5
• Manufacturer: STMicroelectronics
• Type: Class ABr

Specifications of TDA2050V

• Output Type: 1-Channel (Mono)
• Max Output Power X Channels @ Load: 35W x 1 @ 4 Ohm
• Voltage - Supply: 9 V ~ 50 V, ±4.5 V ~ 25 V
• Features: Short-Circuit and Thermal Protection
• Mounting Type: Through Hole
• Package / Case: Pentawatt-5 (Vertical, Bent and Staggered Leads)
• Product: Class-AB
• Output Power: 50 W
• Available Set Gain: 80 dB
• Thd Plus Noise: 0.03 %
• Operating Supply Voltage: 25 V
• Supply Current: 90 mA
• Maximum Power Dissipation: 25000 mW
• Maximum Operating Temperature: + 150 C
• Mounting Style: Through Hole
• Audio Load Resistance: 8 Ohms
• Dual Supply Voltage: +/- 5 V, +/- 9 V, +/- 12 V, +/- 15 V, +/- 18 V, +/- 24 V
• Input Bias Current (max): 0.5 uA
• Input Offset Voltage: 15 mV
• Input Signal Type: Differential
• Minimum Operating Temperature: - 40 C
• Output Signal Type: Single
• Supply Type: Dual
• Amplifier Class: AB
• No. Of Channels: 1
• Supply Voltage Range: ± 4.5V To ± 25V
• Load Impedance: 4ohm
• Operating Temperature Range: -40°C To +150°C
• Rohs Compliant: Yes
• Lead Free Status / RoHS Status: Lead free / RoHS Compliant
• Other names: 497-3028-5

A circuit for generating the test signal is given in
fig. 19.
The load network consists of a 40 F capacitor, in
series with a 1 ohm resistor. The capacitor limits
the current due to the 20 Hz signal to a low value,
whereas for he short pulses the effective load im-
pedance is of the order of 1 ohm, and a high out-
put current is produced.
Using this signal and load network the measure-
ment may be made without causing excessive
dissipation in the amplifier. The dissipation in the
1 ohm resistor is much lower than a rated output
Figure 19: Test circuit for peak power measurement
power of the amplifier, because the duty-cycle of
the high output current is low.
By feeding the amplifier output voltage to the X-
plates of an oscilloscope, and the voltage across
the 1 ohm resistor (representing the output cur-
rent) to the Y=plates, it is possible to read on the
display the value of the maximum instantaneous
output power.
The result of this test applied at the TDA 2050 is:
PEAK POWER = 100W typ
TDA2050
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