NJW4813 Series

Dual Half Bridge Driver with Boost Converter (Wide Input Range Products)

Download Datasheet

Description

The NJW4813 is a dual half bridge driver with boost converter IC.Output voltage boost from Li-ion battery and a 5V power supply and can drive a piezo device by two half bridge drivers.The NJW4813 is able to stable startup by soft start function in boost SW.REG..The dual half bridge driver improves control characteristics from a microcomputer in response to independent signal input in each channel.The input frequency operates to 300kHz and in the case of failure, it can output a fault flag.

Spec

	Consumer
Channels	2(Half)
Output Rise/Fall Time	Typ. 400nsec / 400nsec
Structure	Bi-CMOS Technology
Wide Operating Temperature	-40℃ to +85℃
Junction Temp.	+150℃
Package	PCSP20-E3
Boost Converter Block	Output Switch Voltage 40V max. Switching Current 1A min. PWM Control Oscillation Frequency Range (380kHz to 810kHz) Soft Start Function (17ms typ.) Over Current Protection
Half Bridge Driver Block	Internal 2-Channnel Half Bridge Each Channel Operates Individually Output Switch Peak Current (+280 / -250mA typ.) Switching Frequency (300kHz max.) Output Shut Down Control Over Current Protection Fault Indicator Output
Note	Under Voltage Lockout Built-in Thermal Shutdown Standby Function

Download Datasheet

UVLO	OCP	TSD	Reverse

Functional Description

Quality &
Packages

Product Name	Compatibility	Package	Marking	Reliability
NJW4813SE3		PCSP20-E3	-	NJW-1-s-r

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.

UVLO	Undervoltage Lockout Protection
OCP	Overcurrent Protection
TSD	Thermal Shutdown Function
Reverse Current Protection	Reverse Current Protection

	Sub Ctegory	Boost Converter
	No.of Circuit	2
	Drive Circuit	Half
	Supply Voltage min(V)	2.7
	Supply Voltage max(V)	5.5
	Output Peak Current typ(A)	+0.28/-0.25
	Switching Current min(A)	1
	Switching Current (Boost) min(A)	1