NEX80805DA中文資料安世數(shù)據(jù)手冊PDF規(guī)格書

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.

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