MAX1848ETA+T

Voltage - Output:	12.2V
Base Part Number:	MAX1848
Supplier Device Package:	8-TDFN-EP (3x3)
Package / Case:	8-WDFN Exposed Pad
Mounting Type:	Surface Mount
Operating Temperature:	-40°C ~ 85°C (TA)
Applications:	Backlight
Dimming:	--
Frequency:	1.2MHz
Current - Output / Channel:	750mA (Switch)
Series:	--
Voltage - Supply (Max):	5.5V
Voltage - Supply (Min):	2.6V
Number of Outputs:	1
Internal Switch(s):	Yes
Topology:	Step-Up (Boost)
Type:	DC DC Regulator
Part Status:	Active
Packaging:	Tape & Reel (TR)

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MAX1848ETA+T Application Field and Working PrincipleThe MAX1848ETA+T belongs to the family of PMIC - LED Drivers. It is a Constant Current LED Regulator, designed for helping its customers to reduce power costs, save board area, and improve performance. It is featured by its high speed of current regulation, its fast turn-off time and its high voltage ratings. Thanks to its wide operating voltage range, the MAX1848ETA+T can be applied from 1.71 V to 15 V and consequently it is suitable for a great variety of electronic products. In particular, it can be successfully employed in automotive applications, displays, dot matrix LCDs and power LEDs. The main feature of the MAX1848ETA+T is that it can be easily configured to regulate the amount of current that it can provide depending on the electronics situation. It is indeed possible to select the maximum current range by simply connecting a resistor to the SET pin instead of connecting a capacitor there. This allows the customer to get maximum current accuracy with a single resistor while controlling the led currents. The working principle of the MAX1848ETA+T is that the SET resistor sets the nominal current that the MAX1848ETA+T will provide to a power LED or display. When the maximum current is set, the MAX1848ETA+T will be monitoring the voltage that is flowing through the SET resistor. If this voltage exceeds a certain range, the MAX1848ETA+T will switch off the current. This removes the need for an external shut-down signal to be constantly monitored by the electronics downstream. Thanks to its switching frequency of 2MHz, the MAX1848ETA+T can quickly adjust to changes in the power LED or display current needs, ensuring that the current is always in the desired range. In addition, thanks to its fast turn-off time of 1 ns, the current can be adjusted quickly, protecting the downstream electronics in case of an overload. Overall, the MAX1848ETA+T is a reliable and cost effective solution for power LED and display current regulation that is easy to set up and use. It is an ideal solution for automotive applications, dot matrix LCDs, displays and other LED applications that require high current accuracy with fast switching time.

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