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NJM2670
- 1 -
DUAL H BRIDGE DRIVER
s
GENERAL DESCRIPTION
s
PACKAGE OUTLINE
s
FEATURES
Wide Voltage Range (4V to 60V)
Wide Range of Current Control (5 to 1500mA )
Thermal overload Protection
Package Outline (DIP-22, EMP-24)
s
PIN CONNECTION
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.
NJM2670D2 NJM2670E3
TSD ARM
OUTB2
TSD ARM
INB2
SENSE A
INA1
ENABLE A
OUTA1
GND
GND
NC
INB1
ENABLE B
OUTB2
SENSE B
INA2
OUTA2
VS A
GND
GND
VS B
OUTB2
VCC
NC
DIP-22
SENSE A
INA1
ENABLE A
OUTA
GND
GND
OUTB2
ENABLE B
INB1
SENSE B
INA2
OUTA2
VS A
GND
GND
VS B
INB2
VCC
NC
EMP-24
NC
NC
NC
NJM2670
- 2 -
s
BLOCK DIAGRAM
Thermal
Shut Down
VS A
INA1
INA2
VS B
INB1
INB2
ENABLE B
SENSE B
OUTB2
OUTB1
TSD_ARM
SENSE A
OUTA2
OUTA1
V
CC
ENABLE A
GND
NJM2670
- 3 -
s
ABSOLUTE MAXIMUM RATINGS (Ta=25
C
)
PARAMETER SYMBOL
RATINGS
UNIT
Maximum Supply Voltage
V
MM
60 V
Logic Supply Voltage
V
CC
7 V
Input Voltage Range
V
IN
-0.3
to
7 V
Output Current
I
OUT
1.5 A
Power Dissipation@T(GND)=25
C
P
D25
5 W
Power Dissipation@T(GND)=125
C
P
D125
2 W
Operating Junction Temperature
Topr
-40
85
C
Storage Temperature
Tstg
-55
150
C
s
RECOMENNDO OPERATING CONDITIONS
PARAMETER SYMBOL
TEST
CONDITIONS
MIN.
TYP.
MAX.
UNIT
Supply Voltage
V
MM
4 - 55 V
Logic Voltage Range
V
CC
4.75 5.00 5.25 V
Maximum Output Current
I
OUT
-
- 1.3 A
P
D
T
GND
=25
C -
-
5
W
Total Power Dissipation
P
D
T
GND
=125
C -
-
2.2
W
s
THERMAL CHARACTERISTICS
PARAMETER SYMBOL
TEST
CONDITIONS MIN.
TYP.
MAX.
UNIT
Rth
j-GND
DIP22 package.
-
11
-
C/W
Rth
j-A
DIP22 package. Note
-
40
-
C/W
Rth
j-GND
EMP24 package.
-
13
-
C/W
Thermal resistance
Rth
j-A
EMP24 package. Note
-
42
-
C/W
Note : All ground pins soldered onto a 20 cm
2
PCB copper area with free air convection, T
A
=+25
C
NJM2670
- 4 -
s
ELECTRICAL CHARACTERISTICS
PARAMETER SYMBOL
TEST
CONDITIONS
MIN.
TYP.
MAX.
UNIT
GENERAL
Quiescent current
Icc
Enable=H,IN1=IN3=L,IN
2=IN4=H
-
40
-
mA
Thermal shutdown
Ttsd
-
170
-
C
Off-State leak current
Itsd-
LEAK
TSD
ARM=5V
-
-
50
A
Thermal alarm output saturation
Vtsd Io=5mA
-
0.5 0.7 V
Dead time protection
Td
-
1
-
s
LOGIC
Input LOW voltage
Vi
L
- -
0.6
V
Input HIGH voltage
Vi
H
2
- -
V
Input HIGH current
Ii
H
Vi=2.4V
- -
20
A
Input LOW current
Ii
L
Vi=0.4V
-0.4
- -
mA
OUTPUT
V
OU1
Io=1000mA
-
1.3
1.5
V
Upper transistor saturation
V
OU2
Io=1300mA
-
1.5
1.8
V
V
OL1
Io=1000mA
-
0.5
0.8
V
Lower transistor saturation
V
OL2
Io=1300mA
-
0.8
1.3
V
V
fU1
Io=1000mA
-
1.3
1.6
V
Upper diode forward
V
fU2
Io=1300mA
-
1.6
1.9
V
V
fL1
Io=1000mA
-
1.3
1.6
V
Lower diode forward
V
fL2
Io=1300mA
-
1.6
1.9
V
Output leakage current
Lo-
LEAK
V
MM
=50V
- -
1
mA
Upper diode recoverly time
Trr
U
-
250
-
ns
Lower diode recoverly time
Trr
L
-
250
-
ns
NJM2670
- 5 -
s
TYPICAL APPLICATION
1). Bipolar Stepping Motor
2). Single Phase DC Motor
INA1
TSD
INA2
ENABLE A
INB1
INB2
ENABLE B
VS A
VS B
SENSE A
TSD ARM
OUTA1
OUTA2
OUTB2
OUTB1
SENSE B
V
MM
(4
55V)
V
CC
V
CC
Motor
Motor
GND
(V
MM
GND)
INA1
TSD
INA2
ENABLE A
INB1
INB2
ENABLE B
VS A
VS B
SENSE A
TSD ARM
OUTA1
OUTA2
OUTB2
OUTB1
SENSE B
V
MM
(4
55V)
V
CC
V
CC
(V
MM
GND)
GND
Motor
CPU
or
Microprocessor
CPU
or
Microprocessor
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