NJM2670
DUAL H BRIDGE DRIVER
GENERAL DESCRIPTION
The NJM2670 is a general-purpose 60V dual H-bridge
drive IC. It consists of a pair of H-bridges, a thermal shut
down circuit and its alarm output. The alarm output can
detect application problems and the system reliability will be
significantly improved if monitored by Micro Processor.
Therefore, it is suitable for two-phase stepper motor
application driven by microprocessor.
FEATURES
•
Wide Voltage Range
•
Wide Range of Current Control
•
Thermal overload Protection
•
Dead Band Protector
•
Package Outline
PACKAGE OUTLINE
4V to 60V
5 to 1500mA
NJM2670D2
( DIP22 )
NJM2670E3
( SOP24-E3 Batwing )
DIP22, SOP24-E3 (Batwing)
PIN CONNECTION
SENSE A
INA1
ENABLE A
OUTA1
GND
GND
INB1
ENABLE B
NC
OUTB1
SENSE B
DIP-22
VS A
VCC
INA2
OUTA2
GND
GND
INB2
TSD_ARM
NC
OUTB2
VS B
SENSE A
INA1
ENABLE A
NC
OUTA1
GND
GND
INB1
ENABLE B
NC
OUTB1
SENSE B
SOP24-E3
VS A
VCC
INA2
NC
OUTA2
GND
GND
INB2
TSD ARM
NC
OUTB2
VS B
-1-
Ver2.0
NJM2670
BLOCK DIAGRAM
VS A
INA1
INA2
OUTA1
OUTA2
SENSE A
ENABLE A
V
CC
VS B
INB1
INB2
OUTB1
OUTB2
Thermal
Shut Down
TSD_ARM
SENSE B
ENABLE B
GND
-2-
NJM2670
ABSOLUTE MAXIMUM RATINGS
(Ta=25°C
)
PARAMETER
Maximum Supply Voltage
Logic Supply Voltage
Input Voltage Range
Output Current
Power dissipation at T
GND
=+25°C,DIP and SOP package
Power dissipation at T
GND
=+125°C,DIP package
Power dissipation at T
GND
=+125°C,SOP package
Operating Junction Temperature
Storage Temperature
SYMBOL
V
MM
V
CC
V
IN
I
OUT
P
D25
P
D125
P
D125
Topr
Tstg
RATINGS
60
7
-0.3 to 7
1.5
5
2.2
2
-40
∼
85
-55
∼
150
UNIT
V
V
V
A
W
W
W
°C
°C
RECOMENNDO OPERATING CONDITIONS
PARAMETER
SYMBOL
TEST CONDITIONS
MIN.
4
4.75
-
-20
TYP.
-
5.00
-
-
MAX.
55
5.25
1.3
125
UNIT
V
V
A
°C
Supply Voltage
Logic Voltage Range
Maximum Output Current
Operating junction temperature
V
MM
V
CC
I
OUT
Tj
THERMAL CHARACTERISTICS
PARAMETER
SYMBOL
TEST CONDITIONS
MIN.
-
-
-
-
TYP.
MAX.
-
-
-
-
UNIT
°C/W
°C/W
°C/W
°C/W
Thermal resistance
Rth
j-GND
Rth
j-A
Rth
j-GND
Rth
j-A
DIP22 package.
DIP22 package. Note
SOP24 package.
SOP24 package. Note
11
40
13
42
Note : All ground pins soldered onto a 20 cm
2
PCB copper area with free air convection, T
A
=+25°C
-3-
NJM2670
ELECTRICAL CHARACTERISTICS
PARAMETER
SYMBOL
GENERAL
Icc
Quiescent current
TEST CONDITIONS
MIN.
-
-
-
-
-
-
TYP.
MAX.
-
-
50
0.7
-
UNIT
Enable=H,IN1=IN3=L,IN
2=IN4=H
TSD ARM=5V
Io=5mA
40
170
-
0.5
1
-
-
-
-
mA
°C
Thermal shutdown
Off-State leak current
Thermal alarm output saturation
Dead time protection
LOGIC
Input LOW voltage
Input HIGH voltage
Input HIGH current
Input LOW current
OUTPUT
Upper transistor saturation
Ttsd
Itsd-
LEAK
Vtsd
Td
Vi
L
Vi
H
Ii
H
Ii
L
V
OU1
V
OU2
V
OL1
µA
V
µs
V
V
µA
mA
V
V
V
V
V
V
V
V
mA
ns
ns
Vi=2.4V
Vi=0.4V
Io=1000mA
Io=1300mA
Io=1000mA
Io=1300mA
Io=1000mA
Io=1300mA
Io=1000mA
Io=1300mA
V
MM
=50V
2
-
-0.4
-
-
-
-
-
-
-
-
-
-
-
0.6
-
20
-
1.5
1.8
0.8
1.3
1.6
1.9
1.6
1.9
Lower transistor saturation
Upper diode forward
Lower diode forward
Output leakage current
Upper diode recoverly time
Lower diode recoverly time
V
OL2
V
fU1
V
fU2
V
fL1
V
fL2
Lo-
LEAK
Trr
U
Trr
L
1.3
1.5
0.5
0.8
1.3
1.6
1.3
1.6
-
250
250
1
-
-
TRUTH TABLE
INPUT
(L=Low,H=High,X=Don't care)
ENABLE A=H
INA1
INA2
ENABLE B=H
INB1
INB2
L
L
L
H
H
L
H
H
ENABLE A=L
X
X
ENABLE B=L
OUTPUT
(H=Source,L=Sink)
OUTA2
OUTA1
OUTB1
OUTB2
L
L
L
H
H
L
H
H
All Transistor turned OFF
OUTPUT mode
short break mode
CW
CCW
short break mode
-4-
NJM2670
TYPICAL APPLICATION
1). Bipolar Stepper Motor
VS A
INA1
INA2
OUTA1
Motor
OUTA2
SENSE A
ENABLE A
V
CC
VS B
INB1
INB2
OUTB1
OUTB2
SENSE B
GND
ENABLE B
V
CC
V
MM
(4
∼
55V)
CPU
or
Microprocessor
TSD
TSD ARM
(V
MM
GND)
2). Single Phase DC Motor
V
MM
(4
∼
55V)
VS A
INA1
INA2
OUTA1
Motor
OUTA2
SENSE A
ENABLE A
CPU
or
Microprocessor
V
CC
VS B
INB1
INB2
V
CC
TSD
TSD ARM
OUTB1
OUTB2
SENSE B
GND
Motor
ENABLE B
(V
MM
GND)
-5-
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