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MAX20050ATC/V+T LED照明驱动器
MAX20050ATC/V+T
MAXIM（美信）
400 kHz
4.5 V to 65 V
2 A
1 Channel
相关产品
产品信息
MAX20050ATC/V+T
LED照明驱动器 2A Synchronous Buck LED Driver with Integrated MOSFETs
2A Synchronous-Buck LED Drivers with Integrated MOSFETs
General Description
The MAX20050ATC/V+T MAX20050–MAX20053 are high-brightness LED (HB LED) drivers for automotive exterior lighting applications. Consisting of a fully synchronous step-down converter with integrated MOSFETs, the devices are capable of driving a series string of LEDs at up to 2A, with a minimum number of external components. The MAX20050/ MAX20052 utilize internal loop compensation to minimize component count, while the MAX20051/MAX20053 use external compensation for full flexibility.
Applications MAX20050ATC/V+T
● Daytime Running Lamps (DRLs)
● Fog Lamps
● Clearance Lamps (CLLs)
● Corner Lamps (CLs)
● Rear Lamps
● Head Lamps
● Commercial, Industrial, and Architectural Lighting
Benefits and Features MAX20050ATC/V+T
● Fully Synchronous 2A Step-Down Converter with Integrated 0.14Ω (typ) MOSFETs
● Wide 4.5V to 65V Input Supply Range
● Two Switching Frequency Options: 400kHz and 2.1MHz
● Internal Loop Compensation (MAX20050/MAX20052) and External Loop Compensation (MAX20051/MAX20053) Options
● Switching Frequency Synchronized to PWM Dimming Signal
● Active-Low Fault (FLT) Indicator
● Output Short-Circuit Protection
● High-Side Current Regulation Eliminates One Connection to LED String
● Spread-Spectrum Mode Alleviates EMI Problems
● Low 200mV Full-Scale High-Side Current-Sense Voltage
● REFI Pin Adjusts LED Current Down to Zero
● PWM Dimming Disconnects Both High- and LowSide MOSFET Drivers
● 5V, 10mA LDO Output Provides Bias to Other Circuits
● Ultra-Low Shutdown Current (5μA typ)
● Output Overload, Short-Circuit, and Overtemperature Protections
● 12-Pin (3mm x 3mm) TDFN and 14-Pin (5mm x 4.4mm) TSSOP Package Options
