NJM3777 New Japan Radio, NJM3777 Datasheet - Page 5

• Manufacturer Part Number: NJM3777
• Description: DUAL STEPPER MOTOR DRIVER
• Manufacturer: New Japan Radio

Electrical characteristics over recommended operating conditions, unless otherwise noted. - 20 C
Parameter
General
Supply current
Supply current
Total power dissipation
Total power dissipation
Thermal shutdown junction temperature
Turn-off delay
Logic Inputs
Logic HIGH input voltage
Logic LOW input voltage
Logic HIGH input current
Logic LOW input current
Analog Inputs
Threshold voltage
Input current
|V
Motor Outputs
Lower transistor saturation voltage
Lower transistor leakage current
Lower diode forward voltage drop
Upper transistor saturation voltage
Upper transistor leakage current
Upper diode forward voltage drop
Chopper Oscillator
Chopping frequency
Digital filter blanking time
Parameter
Thermal resistance
Notes
1. All voltages are with respect to ground. Currents are positive into, negative out of specified terminal.
2. All ground pins soldered onto a 20 cm
3. Not covered by final test program.
4. Switching duty cycle D = 30 %, f
C1
ELECTRICAL CHARACTERISTICS
THERMAL CHARACTERISTICS
—V
C2
| mismatch
s
= 23.0 kHz.
Rth
Rth
Symbol
2
Symbol
V
PCB copper area with free air convection, T
V
V
I
I
P
P
V
I
I
I
J-GND
J-A
CC
CC
t
f
t
Cdiff
IH
IL
CH
d
A
b
IH
s
IL
D
D
Note 2.
Note 4.
Dis
V
Notes 2, 3, 4.
V
Notes 2, 3, 4.
dV
I
V
V
V
V
I
V
I
I
V
I
C
C
M
M
M
M
M
MM
MM
I
I
R
R
MM
MM
T
T
= 100 mA. Note 3.
= 5 V
= 5 V
= 500 mA
= 500 mA
= 500 mA.
= 500 mA.
= 2.4 V
= 0.4 V
C
= 4 700 pF, R
= 4 700 pF. Note 3.
1
= 24 V, I
= 24 V, I
/dt
=41 V,Dis
=41 V, Dis
= Dis
50 mV/ s,
2
= HIGH.
M1
M1
Conditions
1
= I
= 800 mA, I
1
Conditions
= Dis
= Dis
M2
T
= 12 kohm
= 650 mA.
2
2
= HIGH.
= HIGH.
M2
= 0 mA.
A
= + 25 C.
21.5
-0.2
480
Min
2.0
-
-
-
-
-
-
-
-
-
-
-
-
-
-
-
-
-
Min
-
-
23.0
-0.1
Typ
160
500
500
2.9
2.3
1.1
0.5
1.2
1.4
1.3
1.0
85
7
5
-
-
-
-
-
Typ
13
42
NJM3777
Max
24.5
520
T
3.4
2.7
2.0
0.6
0.8
1.3
1.6
1.5
99
10
20
20
50
50
-
-
-
-
-
j
Max
-
-
+ 125 C.
Unit
kHz
mA
mA
mA
mV
mV
Unit
W
W
C/W
C/W
V
V
V
V
V
V
C
A
A
A
A
s
s