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NJW4303

Description
PWM 3-PHASE DC BRUSHLESS MOTOR CONTROLLER
File Size343KB,28 Pages
ManufacturerNew JRC
Websitehttps://www.njr.com
Download Datasheet View All

NJW4303 Overview

PWM 3-PHASE DC BRUSHLESS MOTOR CONTROLLER

NJW4303
PWM 3-PHASE DC BRUSHLESS MOTOR CONTROLLER
GENERAL DESCRIPTION
The NJW4303 is a 3-Phase Brushless DC Motor Control
pre-driver IC with PWM control. It generates the most optimal
current flow patterns by receiving rotor magnetic pole detection
signals from hall elements of 3-phase brushless motor.
Operational voltage range for the IC has margin as 9.0V to
35V(maximum voltage of 40V), and it fits for a 12V/24V power
supply. It is possible to put practical use such as speed control by
internal oscillation circuit, and torque limiter control by current
sensory circuit. With NJW4303, high reliability of various motor
drive controls can be realized by a variety of function and a
substantial protection circuit.
FEATURES
Maximum Supply Voltage
Operating Voltage
3-Phase Full-Wave PWM Predriver
Low-side Gate Voltage Clamp
Internal PWM Oscillation Circuit
Current Protection Circuit
Low-Voltage Protection Circuit
Forward/Reverse Direction
PACKAGE OUTLINE
NJW4303V
: 40V
: 9.0 V to 35V
: Hi-side: Pch-FET/ Low-side: Nch-FET
: Gate Voltage=18V max.
: Frequency Setting by External Capacitor
: Current limit=0.25V±10%
: Changeable while Rotating
: Controllable Dead-Time Settings
: Using External Capacitor
: Stop with S/S Pin
Soft-Start Function
ON/OFF Function
Brake Function
Lock Protection System
Thermal Shutdown Circuit
120°/60° Phase Difference Change Function
Multi-FG Output
: 2bit Input Change Type
Bi-CDMOS Technology
Package Outline
: SSOP32
PIN CONNECTION
1pin
VREF
H1+
H1-
H2+
H2-
H3+
H3-
N.C
FG
FR
BR
N1
N2
DEC
S/S
VERR
VCC
UH
VH
WH
N.C
N.C
GND
UL
VL
WL
N.C
ILIMIT
FRC
Ct
OSC
GND
1.VREF
2.H1+
3.H1-
4.H2+
5.H2-
6.H3+
7.H3-
8.N.C
9.FG
10.FR
11.BR
12.N1
13.N2
14.DEC
15.S/S
16.VERR
17.GND
18.OSC
19.Ct
20.FRC
21.ILIMIT
22.N.C
23.WL
24.VL
25.UL
26.GND
27.N.C
28.N.C
29.WH
30.VH
31.UH
32.VCC
Ver. 2009-11-13
-1-
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