NJM2670
DUAL H BRIDGE DRIVER
s
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.
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PACKAGE OUTLINE
NJM2670D2
NJM2670E3
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FEATURES
•
Wide Voltage Range
•
Wide Range of Current Control
•
Thermal overload Protection
•
Package Outline
(4V to 60V)
(5 to 1500mA )
(DIP-22, EMP-24)
s
PIN CONNECTION
SENSE A
INA1
ENABLE A
OUTA1
GND
GND
INB1
ENABLE B
NC
OUTB2
SENSE B
DIP-22
VS A
VCC
INA2
OUTA2
GND
GND
INB2
TSD ARM
NC
OUTB2
VS B
SENSE A
INA1
ENABLE A
NC
OUTA
GND
GND
INB1
ENABLE B
NC
OUTB2
SENSE B
EMP-24
VS A
VCC
INA2
NC
OUTA2
GND
GND
INB2
TSD ARM
NC
OUTB2
VS B
-1-
NJM2670
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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
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ABSOLUTE MAXIMUM RATINGS (Ta=25°C )
PARAMETER
SYMBOL
Maximum Supply Voltage
V
MM
Logic Supply Voltage
V
CC
Input Voltage Range
V
IN
Output Current
I
OUT
P
D25
Power Dissipation@T(GND)=25°C
P
D125
Power Dissipation@T(GND)=125°C
Operating Junction Temperature
Topr
Storage Temperature
Tstg
RATINGS
60
7
-0.3 to 7
1.5
5
2
-40
∼
85
-55
∼
150
UNIT
V
V
V
A
W
W
°C
°C
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RECOMENNDO OPERATING CONDITIONS
PARAMETER
SYMBOL
Supply Voltage
Logic Voltage Range
Maximum Output Current
Total Power Dissipation
V
MM
V
CC
I
OUT
P
D
P
D
TEST CONDITIONS
MIN.
4
4.75
-
-
-
TYP.
-
5.00
-
-
-
MAX.
55
5.25
1.3
5
2.2
UNIT
V
V
A
W
W
T
GND
=25°C
T
GND
=125°C
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THERMAL CHARACTERISTICS
PARAMETER
SYMBOL
Thermal resistance
Rth
j-GND
Rth
j-A
Rth
j-GND
Rth
j-A
TEST CONDITIONS
MIN.
-
-
-
-
TYP.
MAX.
-
-
-
-
UNIT
°C/W
°C/W
°C/W
°C/W
DIP22 package.
DIP22 package. Note
EMP24 package.
EMP24 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
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ELECTRICAL CHARACTERISTICS
PARAMETER
SYMBOL
GENERAL
Icc
Quiescent current
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
V
OL2
V
fU1
V
fU2
V
fL1
V
fL2
Lo-
LEAK
Trr
U
Trr
L
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
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
1.3
1.5
0.5
0.8
1.3
1.6
1.3
1.6
-
250
250
1
-
-
-4-
NJM2670
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TYPICAL APPLICATION
1). Bipolar Stepping Motor
VS A
INA1
INA2
OUTA1
Motor
OUTA2
SENSE A
V
MM
(4
∼
55V)
CPU
or
Microprocessor
ENABLE A
V
CC
VS B
INB1
INB2
OUTB1
OUTB2
SENSE B
GND
ENABLE B
V
CC
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
Motor
OUTB2
SENSE B
GND
ENABLE B
(V
MM
GND)
-5-
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