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PDF NJW4303 Data sheet ( Hoja de datos )
| Número de pieza | NJW4303 | |
| Descripción | PWM 3-PHASE DC BRUSHLESS MOTOR CONTROLLER | |
| Fabricantes | New Japan Radio | |
| Logotipo |  |
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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.
PACKAGE OUTLINE
NJW4303V
FEATURES
Maximum Supply Voltage
: 40V
Operating Voltage
: 9.0 V to 35V
3-Phase Full-Wave PWM Predriver
: Hi-side: Pch-FET/ Low-side: Nch-FET
Low-side Gate Voltage Clamp
: Gate Voltage=18V max.
Internal PWM Oscillation Circuit
: Frequency Setting by External Capacitor
Current Protection Circuit
: Current limit=0.25V 10%
Low-Voltage Protection Circuit
Forward/Reverse Direction
: Changeable while Rotating
: Controllable Dead-Time Settings
Soft-Start Function
: Using External Capacitor
ON/OFF Function
: Stop with S/S Pin
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
-1-
1 page  
NJW4303
ELECTRICAL CHARACTERISTICS
(VCC=24V, VIH1+= VIH3+=3.0V, VIH1-= VIH2-= VIH3-=2.0V, VIH2+=1.0V, VIN= VLIM= VCT=0V,
VVERR=4.5V, VOSC=4.5V 0.5V, CVREF=1uF, Ta=25 C)
PARAMETER
SYMBOL
TEST CONDITION
MIN.
GENERAL
Supply current 1
Supply current 2
THERMAL SHUTDOWN BLOCK
ICC1
ICC2
VCC=12V
-
-
Thermal shutdown operating
TTSD1
Thermal shutdown recovery
TTSD2
Thermal shutdown hysteresis
TTSD
UNDER VOLTAGE LOCK OUT BLOCK
-
-
UVLO operating voltage
VUVLO1
UVLO recovery voltage
VUVLO2
UVLO hysteresis voltage
VUVLO
LOCK PROTECTION BLOCK (Ct PIN)
VCC Decreasing
VCC Increasing
6.3
6.8
-
High level voltage
VHCt
Low level voltage
VLCt
Lock charge current
ICHGCt
Lock discharge current
IDCHGCt
Lock charge/discharge current ICHGCt/IDCHGCt
REFERENCE VOLTAGE BLOCK (VREF PIN)
3.30
0.90
2.5
0.25
-
Reference voltage supply
VREF
IVREF=1mA
Load regulation
VLOVREF IVREF=1 to 10 mA
Line regulation
VLIVREF VCC=9 to 35V, IVREF=1 mA
HALLAMP BLOCK (H1+, H1-, H2+, H2-, H3+, H3- PIN)
4.5
-
-
Hysteresis Voltage range
VHYSIH
Input bias current
IBIH
HI-SIDE BLOCK (UH, VH, WH PIN)
Per each input
10
-
Hi-side output voltage
VOLH
Hi-side leak current
IOLEAKH
LOW-SIDE BLOCK (UL, VL, WL PIN)
IOH=30 mA
VOH=35V
-
-
Low-side output H voltage1
Low-side output H voltage2
Low-side output L voltage
Low-side clamp voltage
FG OUTPUT (FG PIN)
VOHL1
VOHL2
VOLL
VCLL
IOLSOURCE=30 mA ,VCC=12V
IOLSOURCE=30 mA
IOLSINK=30 mA
IOLSOURCE=0.1 mA ,VCC=35V
8.0
8.0
-
-
Output voltage
Leak current
VFGL
ILEAKFG
IFG=10 mA
VFG=5V
-
-
TYP.
5.3
6.4
170
135
35
6.8
7.3
0.5
3.55
1.00
5.5
0.55
10
5.0
15
50
30
-
0.5
-
10.0
10.0
0.5
-
0.3
-
MAX. UNIT
8.3 mA
9.4 mA
-C
C
-C
7.3 V
7.8 V
-V
3.80
1.30
9.0 uA
0.90 uA
--
5.5 V
60 mV
100 mV
50 mV
1.5 uA
1.0 V
1 uA
-V
-V
1.0 V
18 V
0.7 V
1 uA
-5-
5 Page 
NJW4303
TIMING CHART
Codes used in Hall input:
Logics of H1, H2, H3 are expressed with each
3-colum starting from the top.
High Logic = 1, Low Logic = 0
1. Normal Function PWM Function
0 60
ELECTRIC DEGREE POSITION (deg)
120 180 240 300 360 420 480 540 600 660 720
HALL INPUT
H1
H2
H3
code 100 110 010 011 001 101 100 110 010 011 001 101
DEC(=L)
FR(=L)
N1(=L)
N2(=L)
FG
Hi-SIDE
UH
VH
WH
LOW-SIDE
UL
VL
WL
TORQUE
CONTROL
INPUT
VERR
OSC
Fullspeed (PWMDUTY=100%)
Reduced Speed (PWMDUTY=70%)
- 11 -
11 Page | ||
| Páginas | Total 28 Páginas | |
| PDF Descargar | [ Datasheet NJW4303.PDF ] | |
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