TDA2050V STMicroelectronics, TDA2050V Datasheet - Page 9

• 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

Figure 13: Supply Voltage Rejection vs. Fre-
Figure 14: Supply Voltage Rejection vs. Fre-
Figure 15: Total Power Dissipation and Effi-
quency (Single supply) for Different
values of C2 (circuit of fig. 3)
quency (Single supply) for Different
values of C2 (circuit of fig. 3)
ciency vs. Output Power
Figure 16: Total Power Dissipation and Effi-
SHORT CIRCUIT PROTECTION
The TDA 2050 has an original circuit which limits
the current of the output transistors. The maxi-
mum output current is a function of the collector
emitter voltage; hence the output transistors work
within their safe operating area. This function can
therefore be considered as being peak power lim-
iting rather than simple current limiting.
It reduces the possibility that the device gets
damaged during an accidental short circuit from
AC output to ground.
THERMAL SHUTDOWN
The presence of a thermal limiting circuit offers
the following advantages:
The maximum allowable power dissipation de-
pends upon the thermal resistance junction-ambi-
1)An overload on the output (even if it is perma-
2)The heatsink can have a smaller factor of
nent), or an above limit ambient temperature
can be easily tolerated since the Tj cannot be
higher than 150 C.
safety compared with that of a conventional
circuit. There is no possibility of device dam-
age due to high junction temperature. If for
any reason, the junction temperature in-
creases up to 150 C, the thermal shutdown
simply reduces the power dissipation and the
current consumption.
ciency vs. Output Power
TDA2050
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