{"product_id":"8002a-md8002a-3w-mono-audio-amplifier-ic-sop8-5pcs","title":"8002A \/ MD8002A 3W Mono Audio Amplifier IC SOP-8 – Pack of 5","description":"\u003ch2\u003e8002A \/ MD8002A 3W Mono Audio Amplifier IC — SOP-8, 2V–5.5V, BTL Output (5-Pack)\u003c\/h2\u003e\u003cp\u003eThe 8002A (also known as MD8002A) is a 3W mono Class AB audio power amplifier IC in a SOP-8 SMD package. With a BTL (Bridge-Tied Load) output configuration, it delivers up to 3W into a 4Ω speaker at 5V supply (1.5W at 4Ω\/5V typical), with no external coupling capacitors required. Operating from 2V to 5.5V, it is the standard audio amplifier IC for portable Bluetooth speakers, Arduino audio projects, DY-SV17F voice modules, and compact audio systems.\u003c\/p\u003e\u003ch3\u003eKey Specifications\u003c\/h3\u003e\u003ctable\u003e\n\u003ctr\u003e\n\u003cth\u003eParameter\u003c\/th\u003e\n\u003cth\u003eValue\u003c\/th\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003ePackage\u003c\/td\u003e\n\u003ctd\u003eSOP-8 (SMD)\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eOutput Power\u003c\/td\u003e\n\u003ctd\u003e3W max (4Ω, 5V); 1.5W typ. (4Ω, 5V, 10% THD)\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eOutput Configuration\u003c\/td\u003e\n\u003ctd\u003eBTL (Bridge-Tied Load, differential)\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eSupply Voltage\u003c\/td\u003e\n\u003ctd\u003e2.0V – 5.5V\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eQuiescent Current\u003c\/td\u003e\n\u003ctd\u003e~3mA (no signal)\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eTHD+N\u003c\/td\u003e\n\u003ctd\u003e\u0026lt;0.2% (1W, 1kHz, 5V)\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eSNR\u003c\/td\u003e\n\u003ctd\u003e\u0026gt;80dB\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eShutdown Pin\u003c\/td\u003e\n\u003ctd\u003eYes (active-low, for power saving)\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eOperating Temperature\u003c\/td\u003e\n\u003ctd\u003e-40°C to +85°C\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eQuantity\u003c\/td\u003e\n\u003ctd\u003e5 pieces\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003c\/table\u003e\u003ch3\u003e8002A vs PAM8403 vs LM386 — Audio Amplifier Comparison\u003c\/h3\u003e\u003ctable\u003e\n\u003ctr\u003e\n\u003cth\u003eFeature\u003c\/th\u003e\n\u003cth\u003e8002A \/ MD8002A\u003c\/th\u003e\n\u003cth\u003ePAM8403\u003c\/th\u003e\n\u003cth\u003eLM386\u003c\/th\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eOutput power\u003c\/td\u003e\n\u003ctd\u003e3W mono (BTL)\u003c\/td\u003e\n\u003ctd\u003e3W+3W stereo (Class D)\u003c\/td\u003e\n\u003ctd\u003e0.5–1W mono\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eClass\u003c\/td\u003e\n\u003ctd\u003eClass AB\u003c\/td\u003e\n\u003ctd\u003eClass D\u003c\/td\u003e\n\u003ctd\u003eClass AB\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eSupply voltage\u003c\/td\u003e\n\u003ctd\u003e2–5.5V\u003c\/td\u003e\n\u003ctd\u003e2.5–5.5V\u003c\/td\u003e\n\u003ctd\u003e4–12V\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eEfficiency\u003c\/td\u003e\n\u003ctd\u003e~75%\u003c\/td\u003e\n\u003ctd\u003e~90%\u003c\/td\u003e\n\u003ctd\u003e~50%\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eAudio quality\u003c\/td\u003e\n\u003ctd\u003eGood (low THD)\u003c\/td\u003e\n\u003ctd\u003eGood (switching noise)\u003c\/td\u003e\n\u003ctd\u003eModerate\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003ePackage\u003c\/td\u003e\n\u003ctd\u003eSOP-8 (SMD)\u003c\/td\u003e\n\u003ctd\u003eSOP-16 (SMD)\u003c\/td\u003e\n\u003ctd\u003eDIP-8 (through-hole)\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eBest for\u003c\/td\u003e\n\u003ctd\u003eCompact mono speaker, voice module\u003c\/td\u003e\n\u003ctd\u003eStereo portable speaker\u003c\/td\u003e\n\u003ctd\u003eSimple mono amp, learning\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003c\/table\u003e\u003ch3\u003eWhy Choose 8002A \/ MD8002A?\u003c\/h3\u003e\u003cul\u003e\n\u003cli\u003e\n\u003cstrong\u003eBTL output\u003c\/strong\u003e — no output coupling capacitor needed, direct speaker connection\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003e2V minimum supply\u003c\/strong\u003e — works from a single Li-ion cell (3.7V) or two AA batteries (3V)\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eShutdown pin\u003c\/strong\u003e — pull low to mute and reduce quiescent current to \u0026lt;1μA for battery-powered devices\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eSOP-8 compact\u003c\/strong\u003e — minimal external components (2 input caps + 2 bypass caps), small PCB footprint\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003e5-pack value\u003c\/strong\u003e — sufficient for multiple audio module builds and repairs\u003c\/li\u003e\n\u003c\/ul\u003e\u003ch3\u003eCompatible With \/ Common Use Cases\u003c\/h3\u003e\u003cul\u003e\n\u003cli\u003e\n\u003cstrong\u003eArduino audio output\u003c\/strong\u003e: Amplify PWM audio from Arduino (with RC filter) to drive a small speaker\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eDY-SV17F voice module\u003c\/strong\u003e: External amplifier for higher volume than DY-SV17F’s built-in 5W amp\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eBluetooth speaker\u003c\/strong\u003e: Mono speaker amplifier in compact Bluetooth audio receiver module\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eIntercom \/ doorbell\u003c\/strong\u003e: Voice announcement amplifier for 3.3V–5V embedded systems\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eToy sound module\u003c\/strong\u003e: Compact audio amplifier for battery-powered toy sound effects\u003c\/li\u003e\n\u003c\/ul\u003e\u003ch3\u003eFrequently Asked Questions\u003c\/h3\u003e\u003cp\u003e\u003cstrong\u003eQ: How do I connect 8002A to an Arduino for audio output?\u003c\/strong\u003e\u003cbr\u003eA: Connect a 10kΩ potentiometer from Arduino audio output (PWM pin with RC filter) to 8002A IN+ pin. Connect IN− to GND via 10kΩ. Connect VDD to 5V, GND to GND, SD (shutdown) to VDD or MCU GPIO. Connect speaker between OUT+ and OUT− (BTL, no coupling cap needed). Add 100nF bypass capacitor from VDD to GND close to the IC.\u003c\/p\u003e\u003cp\u003e\u003cstrong\u003eQ: What speaker impedance works with 8002A?\u003c\/strong\u003e\u003cbr\u003eA: 8002A is rated for 4Ω speakers (maximum power). 8Ω speakers also work but deliver half the power (1.5W at 5V into 8Ω vs 3W into 4Ω). Do not use speakers below 4Ω — lower impedance increases current beyond the IC’s rating and may trigger thermal shutdown.\u003c\/p\u003e\u003cp\u003e\u003cstrong\u003eQ: Can 8002A replace PAM8610 or TPA2005D1 in an existing design?\u003c\/strong\u003e\u003cbr\u003eA: 8002A is functionally similar to TPA2005D1 (Texas Instruments) — both are 3W BTL mono amplifiers in SOP-8 with similar pinouts. Verify pin-by-pin compatibility before substituting. PAM8610 is a different topology (Class D, higher power) and is not a direct replacement for 8002A.\u003c\/p\u003e\u003ch3\u003ePackage Contents\u003c\/h3\u003e\u003cul\u003e\u003cli\u003e5× 8002A \/ MD8002A 3W Mono Audio Amplifier IC (SOP-8)\u003c\/li\u003e\u003c\/ul\u003e","brand":"Keszoox","offers":[{"title":"Default Title","offer_id":46991468822763,"sku":"\u003cnone\u003e","price":8.52,"currency_code":"USD","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0677\/1005\/8731\/files\/8002a-sop8-audio-amplifier-ic-chip-smd.webp?v=1761718629","url":"https:\/\/keszoox.com\/products\/8002a-md8002a-3w-mono-audio-amplifier-ic-sop8-5pcs","provider":"Keszoox","version":"1.0","type":"link"}