NJU7287 Series

Battery Backup Switching IC

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Description

The NJU7287 is a battery backup system IC with three regulators, two voltage detectors, a battery switching system and their control circuit. It switches the regulator output from main power supply source to the backup battery when it detects main power supply drop and also has two voltage detection outputs. The NJU7287 employs an exclusive sequence on the battery switching system which reduces the battery operation. Combining the special sequence and its low operating current, it is well-suited for battery backup systems of DSC, DVC and other portable devices. The NJU7287 is available in small and thin package of 8-lead MSOP (TVSP) .

Spec

	Consumer
Supply Voltage	10V to 13V
Operating Current	13µA max. (V_IN =3.6V) / Normal operation 2.1µA max. (V_BAT =3.0V) / Backup
Structure	CMOS Technology
Wide Operating Temperature	-40℃ to +85℃
Junction Temp.	+125℃
Package	MSOP8(VSP8) PCSP12-C3
Low Dropout Voltage	0.06V max. (I_RO=3mA) / REG1 0.3V max. (I_OUT=23mA) / REG2 0.06V max. (I_CH=3mA) / REG3
3ch.(REG1, REG2, REG3) Output Voltage	±2.0%
2ch.(CS, RESET) Output Voltage	±2.0%
Note	Exclusive Sequence

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Quality &
Packages

Product Name	Compatibility	Package	Marking	Reliability
NJU7287RB1		MSOP8(TVSP8)	-	NJU-1-s-fr
NJU7287ASC1		PCSP12-C3	-	NJU-1-s-fr

Refer to the datasheets for the details on the product.
The package file or the datasheet includes package dimensions, taping specifications, taping reels dimensions, power dissipations, and recommended land pattern.