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商品编号:
74HCS04BQX
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简述:
Wide supply voltage range quasi-resonant flyback controller, 130 KHz, 5.8 V gate driver with Over Power Protection (OPP)
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描述:
The NEX806 device series (NEX806xx) are high frequency quasi-resonant PWM controllers implemented with peak current mode control. As the load changes, the NEX806 device automatically switches mode between 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 NEX806xx devices suitable for wide output voltage range applications, such as USB PD/PPS which require an output range between 3.3 V to 21 V .
The NEX806xx 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, spread spectrum and smart driving functions can minimize noise and improve EMI performance.The NEX806xx device series comes in a cost-effective TSOT23-6 package.
- 数据手册:
特性
Wide VCC range (10 V-83 V) supports PD/PPS
Direct GaN driver
Valley switching operation in QR/DCM/PFM
Burst Mode with ultra-low operation current in light load and no load
130 kHz or 170 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
目标应用
USB PD/QC chargers
AC/DC adapters for portable devices
Auxiliary power for industrial and home equipment