Nexperia Flyback controller ICs NEX8080X
Wide Vcc range multi-mode flyback controller, 65 kHz, optimized for 65 W power devices with Over Power Protection (OPP)
Nexperia AC/DC controller series of products support different circuit topologies such as flyback and boost Power Factor Correction (PFC). Through continuous innovation, Nexperia power IC solutions provide lower standby power and system costs, higher conversion efficiency, power density and stronger reliability in AC/DC power supplies. Nexperia can support a turn-key solution when combined with Nexperia Power Delivery (PD) controllers, GaN High Electron Mobility Transistor (HEMT), MOSFETs, Diodes and ESD protection components.
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.
Key features
- 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
Applications
- USB PD/QC chargers
- AC/DC adapters for portable devices
- Auxiliary power for industrial equipment
- Auxiliary power for home equipment
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