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NEX80809DA Datasheet(PDF) 1 Page - Nexperia B.V. All rights reserved |
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NEX80809DA Datasheet(HTML) 1 Page - Nexperia B.V. All rights reserved |
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1 / 21 page  NEX8080 series Wide Vcc range multi-mode flyback controller Rev. 1 — 30 September 2024 Product data sheet 1. General description The NEX8080 device series (NEX8080x) are intelligent multi-mode PWM controller implemented with peak current mode control. As the load changes, it automatically switches between Continuous Conduction Mode (CCM), Quasi-Resonant (QR) mode, Discontinuous Conduction Mode (DCM) and Pulse Frequency Modulation (PFM) Mode to maintain a high efficiency across the entire load range. To achieve an ultralow standby power, Burst Mode (BM) is implemented in very light load or no-load condition. The wide 10 V to 83 V VCC range makes NEX8080x devices suitable for wide output voltage range application, such as USB PD/PPS which require an output range between 3.3 V to 21 V. The NEX8080x offers comprehensive protection including output OV/UV, VCC OV/UV, OPP, OCP, line voltage BROWN-IN/OUT, secondary SR short, CS open/short, internal/external OTP, etc. Furthermore, the spread spectrum and smart driving function can minimize noise and improve EMI performance. The NEX8080x device series comes in a cost-effective TSOT23-6 package. L N GND FB ZCD DRV VCC CS NEX8080x EMI filter HV VCC VS RSET VD GATE VO+ RTN aaa-040368 NEX81801/2 2. Features and benefits • Wide VCC range (10 V to 83 V) supports PD/PPS • Multimode support CCM/QR/DCM/PFM • Peak Load Mode (NEX80805) • Valley switching operation in QR/DCM/PFM • Burst mode with ultra-low operation current under light load and no load • 65 kHz or 85 kHz maximum frequency options • Internal soft start (SST) • Output over voltage protection (OVP) • Spread spectrum for better EMI • Internal over temperature protection (OTP) • External OTP by NTC resistor • VCC over/under voltage protection (VCC OV/UV) • Line voltage brown-in, brown-out (BNI/BNO) • Output short circuit protection (SCP) • CS open/short protection • Secondary rectifier short protection (SRSP) • Overload protection (OLP) • Overpower protection (OPP) to meet LPS • TSOT23-6 package 3. Applications • USB PD/QC chargers • AC/DC adapters for portable devices • Auxiliary power for industrial and home equipment |
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