{"product_id":"sg3525a-sg3525ap-16pin-pwm-controller-ic-push-pull-smps-5pcs","title":"SG3525A \/ SG3525AP 16-Pin PWM Controller IC — Push-Pull SMPS (5pcs)","description":"\u003ch2\u003eSG3525A \/ SG3525AP — 16-Pin PWM Controller IC\u003c\/h2\u003e\u003cp\u003eThe \u003cstrong\u003eSG3525A\u003c\/strong\u003e is a classic \u003cstrong\u003evoltage-mode PWM controller\u003c\/strong\u003e with complementary push-pull outputs, designed for \u003cstrong\u003epush-pull, half-bridge, and full-bridge SMPS topologies\u003c\/strong\u003e. With a wide supply range of 8–35V, 400mA output drive, and programmable soft-start, it remains the go-to IC for inverter and DC-DC converter designs. This listing provides \u003cstrong\u003e5 pieces\u003c\/strong\u003e — new and original.\u003c\/p\u003e\u003chr\u003e\u003ch3\u003eKey Specifications\u003c\/h3\u003e\u003ctable\u003e\n\u003cthead\u003e\u003ctr\u003e\n\u003cth\u003eParameter\u003c\/th\u003e\n\u003cth\u003eValue\u003c\/th\u003e\n\u003c\/tr\u003e\u003c\/thead\u003e\n\u003ctbody\u003e\n\u003ctr\u003e\n\u003ctd\u003ePart Numbers\u003c\/td\u003e\n\u003ctd\u003eSG3525A \/ SG3525AP\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003ePackage\u003c\/td\u003e\n\u003ctd\u003eDIP-16 \/ SOP-16 (per variant)\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eSupply Voltage (Vcc)\u003c\/td\u003e\n\u003ctd\u003e8V – 35V\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eOutput Current (peak)\u003c\/td\u003e\n\u003ctd\u003e400mA sink\/source (per output)\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eOscillator Frequency\u003c\/td\u003e\n\u003ctd\u003e100Hz – 500kHz\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eOutput Mode\u003c\/td\u003e\n\u003ctd\u003eComplementary push-pull (50% max duty each)\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eDead-Time Control\u003c\/td\u003e\n\u003ctd\u003eProgrammable (CT discharge resistor)\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eSoft Start\u003c\/td\u003e\n\u003ctd\u003eProgrammable (external capacitor)\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eReference Voltage\u003c\/td\u003e\n\u003ctd\u003e5.1V ±1% internal\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eError Amplifier\u003c\/td\u003e\n\u003ctd\u003e1 (with 70dB gain, 1MHz GBW)\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eOperating Temperature\u003c\/td\u003e\n\u003ctd\u003e0°C to +70°C (A grade)\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eQuantity\u003c\/td\u003e\n\u003ctd\u003e5 PCS\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003c\/tbody\u003e\n\u003c\/table\u003e\u003chr\u003e\u003ch3\u003eWhy Choose SG3525A?\u003c\/h3\u003e\u003cul\u003e\n\u003cli\u003e✅ \u003cstrong\u003eComplementary push-pull outputs\u003c\/strong\u003e — directly drives transformer primary in push-pull\/half-bridge topologies\u003c\/li\u003e\n\u003cli\u003e✅ \u003cstrong\u003e400mA output drive\u003c\/strong\u003e — 2× higher than TL494, drives larger MOSFETs directly\u003c\/li\u003e\n\u003cli\u003e✅ \u003cstrong\u003eProgrammable soft-start\u003c\/strong\u003e — prevents inrush current on startup\u003c\/li\u003e\n\u003cli\u003e✅ \u003cstrong\u003eShutdown pin\u003c\/strong\u003e — immediate output disable for protection circuits\u003c\/li\u003e\n\u003cli\u003e✅ \u003cstrong\u003eWide frequency range\u003c\/strong\u003e — 100Hz to 500kHz for diverse SMPS designs\u003c\/li\u003e\n\u003c\/ul\u003e\u003chr\u003e\u003ch3\u003eCompatible With \/ Works With\u003c\/h3\u003e\u003cul\u003e\n\u003cli\u003ePush-pull inverter transformer drivers (EE42, EE55, EI66 cores)\u003c\/li\u003e\n\u003cli\u003e12V to 220V pure sine wave inverter driver stages\u003c\/li\u003e\n\u003cli\u003eHalf-bridge DC-DC converter control (48V to 12V)\u003c\/li\u003e\n\u003cli\u003eN-channel MOSFET pairs: IRF3205, IRFZ44N, STP75NF75\u003c\/li\u003e\n\u003cli\u003eGate driver ICs: IR2110, TC4420 (for high-frequency designs)\u003c\/li\u003e\n\u003c\/ul\u003e\u003chr\u003e\u003ch3\u003eTypical Applications\u003c\/h3\u003e\u003cul\u003e\n\u003cli\u003e\n\u003cstrong\u003e12V–220V Inverter\u003c\/strong\u003e — push-pull driver for EE42\/EE55 transformer, 500W–1kW\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eUPS Inverter Stage\u003c\/strong\u003e — SPWM generation for sine-wave UPS output\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eDC-DC Converter\u003c\/strong\u003e — half-bridge 48V to 12V\/5V converter for telecom\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eMotor Drive\u003c\/strong\u003e — H-bridge PWM control for DC servo motors\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eInduction Heater\u003c\/strong\u003e — resonant half-bridge driver with ZVS detection\u003c\/li\u003e\n\u003c\/ul\u003e\u003chr\u003e\u003ch3\u003eFAQ\u003c\/h3\u003e\u003cp\u003e\u003cstrong\u003eQ: What is the difference between SG3525A and SG3525?\u003c\/strong\u003e\u003cbr\u003eA: SG3525A is the improved version with tighter reference voltage tolerance (±1% vs ±2%) and better temperature stability. Always prefer SG3525A for new designs.\u003c\/p\u003e\u003cp\u003e\u003cstrong\u003eQ: How does SG3525A differ from TL494?\u003c\/strong\u003e\u003cbr\u003eA: SG3525A has 400mA output (vs 200mA for TL494), a dedicated shutdown pin, and complementary outputs with built-in dead-time. TL494 has dual error amplifiers. SG3525A is preferred for push-pull inverter designs.\u003c\/p\u003e\u003cp\u003e\u003cstrong\u003eQ: How do I set the switching frequency?\u003c\/strong\u003e\u003cbr\u003eA: Connect RT between pin 6 and Vref (pin 16), CT between pin 5 and GND. Frequency ≈ 1 \/ (CT × (0.7 × RT + 3 × RD)), where RD is the dead-time resistor on pin 5. For 50kHz: RT=10kΩ, CT=2.2nF.\u003c\/p\u003e\u003chr\u003e\u003ch3\u003ePackage Contents\u003c\/h3\u003e\u003cul\u003e\u003cli\u003e5× SG3525A \/ SG3525AP 16-Pin PWM Controller IC\u003c\/li\u003e\u003c\/ul\u003e","brand":"Keszoox","offers":[{"title":"Default Title","offer_id":46991479668971,"sku":"\u003cnone\u003e","price":5.8,"currency_code":"USD","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0677\/1005\/8731\/files\/sg3525a-sg3525ap-16pin-pwm-controller-ic-smd.webp?v=1761547668","url":"https:\/\/keszoox.com\/products\/sg3525a-sg3525ap-16pin-pwm-controller-ic-push-pull-smps-5pcs","provider":"Keszoox","version":"1.0","type":"link"}