MAX4821EUP+

Voltage - Supply (Vcc/Vdd):	--
Base Part Number:	MAX4821
Supplier Device Package:	20-TSSOP-EP
Package / Case:	20-TSSOP (0.173", 4.40mm Width) Exposed Pad
Operating Temperature:	-40°C ~ 85°C (TA)
Fault Protection:	--
Features:	--
Input Type:	--
Rds On (Typ):	2 Ohm
Current - Output (Max):	70mA
Series:	--
Voltage - Load:	2.3 V ~ 5.5 V
Interface:	Parallel, Serial
Output Type:	N-Channel
Output Configuration:	Low Side
Ratio - Input:Output:	1:8
Number of Outputs:	8
Switch Type:	Relay, Solenoid Driver
Part Status:	Active
Packaging:	Tube

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MAX4821EUP+ Application Field and Working Principle

Power Distribution Switches, Load Drivers, and their applications are growing. This is primarily due to the increasing demand for switching, distribution, and load provision in a variety of systems and circuits. The MAX4821EUP+ from Maxim Integrated is a multi-channel, low-on-resistance, high-current, power switch designed for these applications. This device offers an optimized circuit for distributing electrical power for up to eight loads, and its integrated Charge Pump provides excellent current management and fault protection over a wide input voltage range.The MAX4821EUP+ offers both low on-resistance ( < 0.6Ω) and low voltage drop ( < 200mV) for excellent efficiency in power distribution for a wide range of loads. The device provides protection against short circuit, over-voltage due to external component failure, and reverse current protection. In addition, the undervoltage protection circuitry prevents an incorrectly biased loads from operating.The MAX4821EUP+ is ideal for use as a power switch, load driver, and as a battery-saver switch in automotive, industrial, and communications systems applications. The device is commonly used in applications such as LED lighting, point of load regulation circuits, power distribution systems, power management, and power conversion systems.The MAX4821EUP+ works on the principle of load switch multiplexing. This design technique allows a single device to control multiple loads with a single switch control pin. Each of the eight outputs is individually accessed and can be switched on/off to manage power distribution as desired. The device is ideal for use in battery-saver applications, where it can be used to selectively disable specific loads to save power.The MAX4821EUP+ also features integrated over-voltage and under-voltage fault protection that prevents an unregulated voltage from damaging the system. The device offers over-voltage protection up to 35V and under-voltage protection that prevents an incorrectly biased load from operating. Furthermore, the integrated charge pump enables the device to operate with a wide input voltage range of up to 20V.The MAX4821EUP+ features an advanced process technology, in combination with design optimization that provides a low on-resistance drop of less than 0.6Ω across the entire load range. The device is capable of providing up to 8A of continuous current per channel, with a peak current of 10A per channel. The device can also be configured in a forward or backward compatible mode to simplify design and minimize external components.The MAX4821EUP+ is the ideal choice for power distribution, switching, and load provision applications. Its design ensures excellent current management and fault protection for a wide input voltage range, and its integrated charge pump simplifies the design process. Furthermore, its low-on-resistance and low-voltage drop enables extremely efficient power distribution for a wide range of loads.

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