8002 – 2.0 Watt Audio Power Amplifier

Part Number : 8002

Function : 2.0 Watt Audio Power Amplifier

Manufactures : ETC

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8002 image

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Description :

2.0 Watt Audio Power Amplifier Features Improved PSRR at 217 Hz & 1 KHz 60 dB Power output at 5.0V, 10% THD+N, 4Ω 2.0 W (typ.) Power output at 5.0V, 1% THD+N, 8Ω 1.5 W (typ.) 2.2V – 5.5V operation Improved circuitry eliminates pop-click noise during turn-on and turn-off transitions No output coupling capacitors, snubber networks or bootstrap capacitors required Unity-gain stable External gain configuration capability Packages: SOP8 General Description The 8002 is a Class-AB audio power amplifier. It is capable of delivering 2.0 watts of continuous average power to an 4Ω BTL load with less than 10% distortion (THD+N) from a 5VDC power supply, or 1.5 watts continuous average power to an 8 Ω BTL load with less than 1% distortion. The 8002 is designed specifically to provide high quality output power with a minimal amount of external components. It does not require output coupling capacitors or bootstrap capacitors. The 8002 is ideally suited for audio speakers and other low voltage applications. With special pop-click eliminating circuit, the 8002 provides perfect pop-click characteristic during turn-on and turn-off transitions. The 8002 is unity-gain stable and can be configured by external gain-setting resistors. Applications Audio speakers Desktop computers Low voltage audio systems Pin Diagrams -1- V1.0 Pin Description No. Pin Name 1 SHD 2 BP 3 INP 4 INN 5 Vout1 6 VDD 7 GND 8 Vout2 I/O Description I Shut-down Logical Control, ‘1’ is active. I/O Analog ground for inner OPAs. It’s about a half of VDD. I Positive Input I Negative Input O Negative BTL Output I/O Power Supply (2.2 – 5.5 V) I/O Ground O Positive BTL Output – 2 – V1.0 Typical Application Circuit FIGURE 1. 8002 Typical Application Circuit FIGURE 2. 8002 Differential Amplifier Configuration -3- V1.0 External Components Description Components Ri Ci Rf Cs Cb Functional Description Inverting input resistance which sets the closed-loop gain in conjunction with Rf. This resistor also forms a high pass filter with Ci at fc = 1/(2πRi*Ci). Input coupling capacitor which blocks the DC voltage at the amplifiers input terminates. Also creates a high-pass filter with Ri at fc = 1/(2πRi*Ci). Feedback resistance which sets the closed-loop gain in conjunction with Ri. The gain is AVD=2*(Rf/Ri). Supply bypass capacitor which provides power supply filtering. Bypass pin capacitor which provides half-supply filtering. Refer to the section. Absolute Maximum Ratings Supply Voltage -0.3V to 6V Input Voltage -0.3V to VDD+0.3V Power Dissipation See Dissipation Rating Table Junction Temperature -40℃ to +150℃ Storage Temperature -65℃ to +150℃ Thermal Resistance θJC(MSOP8) θJA(MSOP8) θJA(SOP8) 56℃/W 190℃/W 184℃/W Operating Ratings Temperature Range -40℃≦TA≦85℃ Supply Voltage 2.2V≦VDD≦5.5V NOTE: Absolute Maximum Ratings indicate limits beond which damage to the device may occur. Operating Rating indicate conditions for whic […]

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8002 Datasheet

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