1. General description
The NEX80806 is an intelligent multi-mode PWM
controller implemented with peak current mode control.
As the load changes, it automatically switches mode
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.
A peak load mode is implemented to support a peak
output current requirement in a short period, which is
normally required in power supply of PC, printer, etc.
The NEX80806 offers comprehensive protection
including output OV/UV, VCC OV/UV, 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 the noise and improve EMI
performance.
The NEX80806 comes in a cost-effective TSOT23-6
package.

2. Features and benefits
• Multimode support CCM/QR/DCM/PFM
• Peak load mode
• Valley switching operation in QR/DCM/PFM
• Burst mode with ultra-low operation current in light
load and no load conditions
• 65kHz maximum frequency
• 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)
• Over Current Protection (OCP) to meet LPS
• TSOT23-6 Package

3. Applications
• AC/DC adapters for portable devices
• Auxiliary power for industrial and home equipment
• Battery chargers for e-tools and e-bikes