NJU7361 New Japan Radio Co.,Ltd, NJU7361 Datasheet

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NJU7361

Manufacturer Part Number
NJU7361
Description
Nju7361 Single-phase Dc Brushless Motor Driver Ic
Manufacturer
New Japan Radio Co.,Ltd
Datasheet
And It features MOS-FET driver circuit for better output
characteristics.
Shutdown Circuit, Hall Bias Terminal and PWM_IN INPUT for
Rotation Speed Control.
current is 250mA.
Good Efficiency characteristics.
Ver.2008-05-23
NJU7361 features Frequency Generator Output, Thermal
The NJU7361 is single-phase DC brushless motor driver IC.
It is suitable for variable speed FAN required Low Noise &
Maximum output current is 700mA and Continuance output
GENERAL DESCRIPTION
FEATURES
BLOCK DIAGRAM
Low Operating Current
Low Saturation Output Voltage
PWM_IN Input
Hall Bias Terminal
Frequency Generator Output
Thermal Shutdown Circuit
Operating Voltage
CMOS Technology
Package Outline
OUTB
IN+
NC
HB
IN-
Single-phase DC Brushless Motor Driver IC
1
2
3
4
5
Bias
Hall
V
I
V
DD
DD
OM
TVSP 1 0
= 1mA(Typ.)
= 0.30V @Io= 250mA
=2.4 5.5V
+
-
+
-
PWM
TSD
+
-
10
9
8
7
6
OUTA
PWM
VSS
VDD
FG
PACKAGE OUTLINE
PIN CONFIGURATION
PIN NUMBER
10
1
2
3
4
5
6
7
8
9
NJU7361RB2
PIN NAME
OUTB
NC
IN+
HB
IN-
FG
PWM
VDD
OUTA
VSS
NJU7361
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NJU7361 Summary of contents

Page 1

... Single-phase DC Brushless Motor Driver IC GENERAL DESCRIPTION The NJU7361 is single-phase DC brushless motor driver IC. And It features MOS-FET driver circuit for better output characteristics. NJU7361 features Frequency Generator Output, Thermal Shutdown Circuit, Hall Bias Terminal and PWM_IN INPUT for Rotation Speed Control. Maximum output current is 700mA and Continuance output current is 250mA suitable for variable speed FAN required Low Noise & ...

Page 2

... NJU7361 ABSOLUTE MAXIMUM RATINGS PARAMETER Supply Voltage Input Voltage Output Current (Peak Operating Temperature Range Storage Temperature Range Power Dissipation Junction Temperature (*1) Input voltage is not to be over supply voltage to really use. ...

Page 3

... High-impedance TIMING CHART IN+ IN- PWM OUTA OUTB FG Ver.2008-05-23 PWM TSD OUTA H OFF H H OFF L L OFF Z L OFF NJU7361 OUTB ...

Page 4

... NJU7361 DERATING CURVE 400 350 300 250 200 150 100 50 0 ELECTRICAL CHARACTERISTICS IDD vs VDD IN+=VDD, IN-=GND 2 1 VDD[ AMBIENT TEMPERATURE [DegC] 0.3 0.25 0.2 0.15 0.1 0. 125 150 100 FG voltage vs FG input current VDD=5V, IN+=2.5V, IN=GND inout current [mA] ...

Page 5

... NJU7361 VOL vs VDD IN+=GND, IN-=VDD, Io=250mA VDD[V] VOL vs IO VDD=5V, IN+=GND, IN-=VDD 100 200 300 400 500 IO[mA] VHB vs IHB VDD=5V, IN+=2.5V, IN-=GND IHB [mA 600 ...

Page 6

... The input bias voltage for the amplifier must be used within the Hall input common mode voltage (0 including the amplitude of the signal recommended that the Hall bias voltage be one half of the power supply voltage, that is Motor VSS OUTB OUTA NC NJU7361 IN+ VDD HB PWM Hall PWM-IN FG-OUT ...

Page 7

... Design of FG output resistance (R FG Out (FG: Pin5 open drain output and R Ver.2008-05- pull up register. A typical value NJU7361 is 10k . L [CAUTION] The specifications on this databook are only given for information , without any guarantee as regards either mistakes or omissions. The application circuits in this databook are ...

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