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TC8002D
The TC8002D is an audio power amplifier IC with turn-off mode. When operating at 5V input voltage, the average power on the load (3Ω) is 3W, and the distortion does not exceed 10%. For portable devices, when the VDD is applied to the turn-off end, the TC8002D will enter the turn-off mode, and the power consumption at this time is extremely low, and the IQ is only 0.6uA.
TC8002D Description：
The TC8002D is an audio power amplifier IC with turn-off mode. When operating at 5V input voltage, the average power on the load (3Ω) is 3W, and the distortion does not exceed 10%. For portable devices, when the VDD is applied to the turn-off end, the TC8002D will enter the turn-off mode, and the power consumption at this time is extremely low, and the IQ is only 0.6uA.
The TC8002D is an audio amplifier IC designed for high-power, high-fidelity applications. It requires few peripheral components and can work at an input voltage of 2.0V ~ 5.5V.
TC8002D Feature：
The TC8002D is an audio power amplifier IC with turn-off mode. When operating at 5V input voltage, the average power on the load (3Ω) is 3W, and the distortion does not exceed 10%. For portable devices, when the VDD is applied to the turn-off end, the TC8002D will enter the turn-off mode, and the power consumption at this time is extremely low, and the IQ is only 0.6uA.
The TC8002D is an audio amplifier IC designed for high-power, high-fidelity applications. It requires few peripheral components and can work at an input voltage of 2.0V ~ 5.5V.
TC8002D Feature：
No output coupling capacitors or external buffer circuits are required.
Standby current 0.6uA.
Stable gain output.
External gain Settings.
The TC8002D is available in a SOP8 package
Can be applied to portable devices
Audio equipment for desktop computers and low voltage operation.
Standby current 0.6uA.
Stable gain output.
External gain Settings.
The TC8002D is available in a SOP8 package
Can be applied to portable devices
Audio equipment for desktop computers and low voltage operation.
TC8002D application
Can be applied to portable devices
Desktop computers and audio equipment for low voltage operation.
Can be applied to portable devices
Desktop computers and audio equipment for low voltage operation.
TC800D2 Pin arrangement:
TC8002D typical circuit diagram
Power dissipation
Using a bridged op amp circuit, the power consumption generated on the load is also relatively large, so under the condition of a specified voltage, the load power consumption is as follows:
PDMAX = 4× (VDD)2/ (2π2) RL
So input 8 at 5V? Under load, the maximum output power consumption is 625mW. But the results of this algorithm are as follows:
PDMAX = (TJMAX-TA)/ θJA
Note: SOP package θJA=140°C/W, DIP package θJA=107°C/W, MSOP package θJA=210°C/W
PDMAX = 4× (VDD)2/ (2π2) RL
So input 8 at 5V? Under load, the maximum output power consumption is 625mW. But the results of this algorithm are as follows:
PDMAX = (TJMAX-TA)/ θJA
Note: SOP package θJA=140°C/W, DIP package θJA=107°C/W, MSOP package θJA=210°C/W
Reference voltage
The external capacitor at the voltage reference should be as close to the TC8002D as possible. A capacitor of 1μF improves the stability of the internal bias voltage and reduces it
Impact of PSRR. You can increase the ground capacitance of the BYPASS end to improve the PSRR. The CB value depends on the requirements for the PSRR.
Impact of PSRR. You can increase the ground capacitance of the BYPASS end to improve the PSRR. The CB value depends on the requirements for the PSRR.
Turn-off function
In order to reduce power consumption, the TC8002D turn-off end can turn off the external bias circuit. When the shutdown end is at high power level, the op amp is turned off and the TC8002D does not work, then the working current of the TC8002D is reduced to 0.6uA. When the turn-off terminal voltage is slightly lower than VDD, TC8002D is unstable. Therefore, the turn-off end should be placed at a stable voltage value to avoid the IC entering the wrong working state.
In many applications, the level conversion at the off end is done by the processor. When the one-way knife switch is used to achieve the level conversion, a pull resistance can be added to the off end, so that when the switch is off, the level of the TC8002D off end is in a correct state due to the pull-up resistance, so as to ensure that the TC8002D will not enter the wrong working state.
In many applications, the level conversion at the off end is done by the processor. When the one-way knife switch is used to achieve the level conversion, a pull resistance can be added to the off end, so that when the switch is off, the level of the TC8002D off end is in a correct state due to the pull-up resistance, so as to ensure that the TC8002D will not enter the wrong working state.
peculiarity | symbol | Radius | unit |
Operating voltage | VDD | 6 | V |
Input voltage | VIN | -0.3～VDD+0.3 | V |
Operating temperature | TOPR | -65～+150 | ℃ |
Ambient temperature | TA | -40～+85 | ℃ |
Node temperature | TJ | 150 | ℃ |
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