NJM2626
PWM 3-PHASE DC BRUSHLESS MOTOR CONTROL IC
!
GENERAL DESCRIPTION
The NJM2626 is a 3-phase DC brush less motor control pre-driver
IC with PWM control.
It takes hall IC inputs and generates motor driving waveform.
Output pre-driver is optimized to work with external power MOS
transistors for better power handling.
The NJM2626 can easily implement 3-phase DC motor
application with speed control feature.
!
Package Outline
NJM2626V
NJM2626VC3
•
Operating Voltage
•
Pre-driver circuit
-Lower arm: Iout=+30mA/-30mA TYP.
-Upper arm: Iout=30mA TYP.
•
Current limit sensing voltage
•
Internal Oscillator
-Frequency control by external capacitor
•
Forward or Reverse direction
•
Internal Soft Start
-External capacitor to Verr pin
•
Internal ON/OFF Circuit
-No-output is Verr pin to GND
•
Bipolar Technology
•
Package Outline
Vcc= 6V to 26V
Current limit=0.5V±10%
Internal pull-up resistor 10kΩ
SSOP-16/ SSOP20-C3
Ver.2009-02-26
-1-
NJM2626
!
ABSOLUTE MAXIMUM RATINGS
PARAMETER
SYNBO
L
Logic Supply Voltage
Maximum Output Current
Power Dissipation (SSOP-16)
Power Dissipation (SSOP20-C3)
Operating Temperature Range
Storage Temperature range
V
CC
Io
MAX
P
D
P
D
Topr
Tstg
(Ta=25°C)
RATINGS
28
40
Without Board
(*1) Mounted on the 2 layered PCB
(*1) Mounted on the 2 layered PCB
(*1) Mounted on the 4 layered PCB
UNIT
V
mA
300
640
1000
1500
mW
mW
°C
-40
∼
+85
°C
-50
∼
+150
(*1): Mounted on the glass epoxy board based on EIA/JEDEC. (114.3x76.2x1.6mm: 2Layer/4Layer)
-2-
Ver.2009-02-26
NJM2626
!
ELECTRICAL CHARACTERISTICS
PARAMETER
!
General
Operation Supply Voltage
Under Voltage Sense Voltage
Hysteresis Voltage
(Under Voltage Lock Out)
Supply Current
!
Reference Voltage Section
Reference Voltage Output
Line Regulation
Load Regulation
!
Hall Amplifier Section
Input H Level Voltage
Input L Level Voltage
Input Bias Voltage
Pull-up Resistance
!
Output Section
Under Arm Output Voltage 1
Under Arm Output Voltage 2
Output Clamp Voltage
Upper Arm Output Voltage
Output Leak Current
!
Over Current Sense Section
Sense Voltage
Hysteresis Voltage
Input Voltage Ratio
Input Bias Current
!
Oscillator Section
Oscillation Frequency
Supply Voltage Change Ratio
PWM0% Sense Voltage
PWM100% Sense Voltage
Saw Wave Peak Voltage
Saw Wave Bottom Voltage
SYMBOL
V
CC
UVLO
∆UVLO
I
CC
Vref
∆Vref
LI
∆Vref
LO
V
hH
V
hL
I
ho
R
PUH
V
OH
(D)
V
OL
(D)
V
CL
(D)
V
OL
(U)
Io
LEAK
V
TH
V
THhys
V
IN
I
IB
f
osc
∆f
osc
/∆V
PWM0
PWM1
Vp
fosc
Vb
fosc
RL=∞
Iref=1.0mA
V
CC
=6V
∼
18V
Iref=1.0mA
∼
20.0mA
-
-
Vin=0.8V
Vin=0.8V
Isource=30mA
Isink=30mA
V
CC
=26V
Isink=30mA
-
-
-
-
V
IN
=0V
-
V
CC
=6V
∼
18V
PWM DUTY=0%
PWM DUTY=100%
-
-
TEST CONDITION
-
Output Enable
V
CC
Decreasing
-
(V
CC
=12V, Ct=1000pF, Cref=1µF, Ta=25°C)
MIN.
6.0
4.5
0.35
-
3.6
-
-
V
CC
-0.8
TYP.
-
5.0
0.45
12.0
4.0
50
10
-
-
-
10
10.3
0.5
18
0.5
-
0.50
0.1
-
-0.9
27
1
-
-
2.8
0.9
MAX.
26.0
5.5
0.55
18.0
4.4
100
50
-
0.8
-400
13
-
1.0
20
1.0
1.0
0.55
-
3.0
-5.0
33
5
0.35
-
3.2
1.05
UNIT
V
V
V
mA
V
mV
mV
V
V
nA
kΩ
V
V
V
V
uA
V
V
V
µA
kHz
%
V
V
V
V
-
-
7
10
-
-
-
-
0.45
-
-
-
22
-
-
3.5
2.4
0.75
Ver.2009-02-26
-3-
NJM2626
!
ELECTRICAL CHARACTERISTICS
PARAMETER
SYMBOL
TEST CONDITION
-
-
-
-
-
-
-
!
Error Amplifier Section
Input Offset Voltage
V
IO
Input Bias Current
I
IBRR
Input Common Mode
V
ICMRR
Voltage Range
!
Forward/ Reverse Direction Section (FR input terminal)
Output Forward Direction
Output Reverse Direction
Hysteresis Voltage Ratio
Pull-Up Resistance
V
F
V
R
∆V
FR
RPU
FR
(V
CC
=12V, Ct=1000pF, Cref=1µF, Ta=25°C)
MIN.
-
-
0
TYP.
7
-46
-
-
-
0.5
10
MAX.
-
-
Vref
Vref
0.8
-
13
UNIT
mV
nA
V
V
V
V
kΩ
Vref-0.8
-
-
7
Note: Output switch test are performed under pulsed conditions to minimize power dissipation.
s
HALL INPUT vs HALL OUTPUT TRUTH TABLE
FR=L
FR=H
H1
H
H
H
L
L
L
H2
L
L
H
H
H
L
H3
H
L
L
L
H
H
H1
L
L
L
H
H
H
H2
H
H
L
L
L
H
H3
L
H
H
H
L
L
UH
X
X
X
L
L
X
VH
L
X
X
X
X
L
H:Source, L:Sink, X:Hi-Z
WH
X
L
L
X
X
X
UL
H
H
L
L
L
L
VL
L
L
H
H
L
L
WL
L
L
L
L
H
H
s
FR INPUT TERMINAL
Terminal Voltage
L input
H input
Direction
F
R
-4-
Ver.2009-02-26
NJM2626
!
PIN CONFIGURATION
FR
1
16
VCC
NC
FR
Vref
1
20
NC
VCC
UH
VH
WH
UL
VL
WL
llimit
NC
Vref
2
15
UH
2
19
3
18
H1
3
14
VH
H1
4
17
H2
4
13
WH
H2
H3
OSC
Verr
5
16
H3
5
12
UL
6
15
OSC
6
11
VL
7
8
14
13
Verr
7
10
WL
GND
9
12
GND
8
9
llimit
NC
10
11
SSOP-16
SSOP20-C3
Ver.2009-02-26
-5-
嵌入式系统
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