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NJW4813

New Japan Radio
Part Number NJW4813
Manufacturer New Japan Radio
Description Dual Half Bridge Driver
Published May 12, 2013
Detailed Description NJW4813 Dual Half Bridge Driver with Boost Converter GENERAL DESCRIPTION The NJW4813 is a dual half bridge driver with ...
Datasheet PDF File NJW4813 PDF File

NJW4813
NJW4813

Overview
NJW4813 Dual Half Bridge Driver with Boost Converter GENERAL 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.
■ PACKAGE OUTLINE NJW4813SE3 FEATURES Boost Converter Block Output Switch Voltage Switching Current PWM Control Operating Voltage Range Oscillation Frequency Range Soft Start Function Over Current Protection http://www.
DataSheet4U.
net/ 40V max.
1A min.
2.
7 to 5.
5V 380k to 810kHz 17ms typ.
Half Bridge Driver Block Internal 2-Channnel Half Bridge Each Channel Operates Individually Output Switch Peak Current Operating Voltage Range Switching Frequency Output Shut Down Control Over Current Protection Fault Indicator Output +280 / -250mA typ.
8.
0 to 35V 300kHz max.
Under Voltage Lockout Built-in Thermal Shutdown Standby Function Package Outline NJW4813SE3 : PCSP20-E3 Ver.
2012-10-19 -1datasheet pdf - http://www.
DataSheet4U.
net/ NJW4813 PIN CONFIGURATION 15 14 13 12 11 16 17 18 19 20 PAD (*1) 10 9 8 7 6 PIN FUNCTION 1.
VDD_SW 2.
STBYb 3.
SHDNb 4.
IN1 5.
IN2 6.
FLT 7.
RT 8.
GND 9.
PGND 10.
OUT2 11.
VDD_HB 12.
OUT1 13.
PGND 14.
PGND 15.
SW 16.
SW 17.
NC 18.
RADJ 19.
FB 20.
IN- 1 2 3 4 5 < Top View> NJW4813SE3 (*1) The PAD is not connected to an IC chip electrically.
BLOCK DIAGRAM Under Voltage Lock Out VDD_SW STBYb Standby ON/OFF http://www.
DataSheet4U.
net/ RT FB INOscillator Error AMP PWM Buffer SW Vref 1V Soft Start RADJ Thrmal Shut Dow n Over Current Protection FLT Under Voltage Lock Out Over Current Protection High Side Gate Driver High Side Gate Driver VDD_HB OUT1 OUT...


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