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鋰電保護(hù)
充電管理
線性穩(wěn)壓
LED驅(qū)動(dòng)
DC-DC轉(zhuǎn)換器
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復(fù)位
霍爾開關(guān)
運(yùn)算放大器
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PT2280

FEATURES

Primary Side Constant-Current (cc) Control for DCM and CCM Operation
±5% CC Regulation;   ±1% CV Regulation
Less than 75mW Standby Power
Fixed 65KHz Switching Frequency
Green Mode and Burst Mode Control
Very Low Startup and Operation Current.  
Built-in Frequency Shuffling to Reduce EMI  
Built-in Current Mode Control with internal Slope Compensation
Built-in Line & inductance Compensation for cc Operation
Built-in Protections with Auto Recovery:
VDD Under Voltage Lockout (UVO)
VDD Over Voltage Protection (OVP)
On-Chip Thermal Shutdown (OTP)
Cycle-by-Cycle Current Limiting
Over Load Protection (OLP)
Short Circuit Protection (SCP)
Leading Edge Blanking (LEB)
CS Pin Float Protection
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