NJM37770 Datasheet, PDF (6/10 Pages) New Japan Radio – STEPPER MOTOR DRIVER

NJM37770
s ELECTRICAL CHARACTERISTICS
Electrical characteristics over recommended operating conditions,unless otherwise specified.Ta=25°C C_T = 820 pF, R_T = 56 k
Parameter
Symbol
Conditions
Min
Typ
Max
Unit
General
Supply current
Total power dissipation
I_CC
V_MM = 20 to 55 V, I₀ = I₁ = HIGH.
-
V_MM = 20 to 55 V, I₀ = I₁ = LOW,
-
f_s = 23 kHz
P_D
f_s = 28 kHz, I_M = 1.0A, V_MM = 36 V
-
Note 2, 4.
f_s = 24 kHz, I_M = 1.0A, V_MM = 12 V
-
Note 2, 4.
f_s = 28 kHz, I_M = 1.3A, V_MM = 36 V
-
Note 3, 4.
f_s = 28 kHz, I_M = 1.5A, V_MM = 36 V
-
Note 3, 4.
f_s = 28 kHz, I_M = 1.0A, V_MM = 48 V
-
Note 3, 4
Turn-off delay
t_d
Thermal shutdown junction temperature
dV_C/dt ≥ 50 mV/µs.V_MM = 60V, R_T = 56 kΩ -
-
30
40
mA
48
65
mA
1.9
2.3
W
1.7
2.1
W
2.7
3.2
W
3.5
-
W
3.5
-
W
2.0 2.3 µs
165
-
°C
Logic Inputs
Logic HIGH input voltage
Logic LOW input voltage
Logic HIGH input current
Logic LOW input current
Analog Inputs
Comparator threshold voltage
Comparator threshold voltage
Comparator threshold voltage
Input current
Motor Outputs
Lower transistor saturation voltage
Lower diode forward voltage drop
Upper transistor saturation voltage
Output leakage current
Monostable
Cut off time
V_IH
V_IL
I_IH
V_I = 2.4 V
I_IL
V_I = 0.4 V
V_CH V_R = 5.0 V, I₀ = I₁ = LOW
V_CM V_R = 5.0 V, I₀ = HIGH, I₁ = LOW
V_CL V_R = 5.0 V, I₀ = LOW, I₁ = HIGH
I_C
I_M = 1.0A
I_M = 1.3A
I_M = 1.0A
I_M = 1.3A
I_M = 1.0A
I_M = 1.3A
I₀ = I₁ = HIGH, T_a = +25°C
t_off
V_MM = 10 V, t_on ≥ 5 µs
2.0
-
-
V
-
-
0.8
V
-
-
20
µA
-0.4
-
-
mA
400 415 430 mV
240 250 265 mV
70
80
90
mV
-20
-
-
µA
-
0.5 0.8
V
-
0.8 1.3
V
-
1.3 1.6
V
-
1.5 1.8
V
-
1.1 1.3
V
-
1.3 1.6
V
-
-
100 µA
27
31
35
µs
s THERMAL CHARACTERISTICS
Parameter
Thermal resistance
Symbol
Rth_J-GND
Rth_J-A
Conditions
DIP package.
DIP package. Note 2.
Min
Typ
Max
Unit
-
11
- °C/W
-
40
- °C/W
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 cm² PCB copper area with free air convection Ta=+25°C
3. DIP package with external heatsink (Staver V7) and minimal copper area. Typical Rth_J-A = 27.5°C/W. T_a = +25°C
4. Not covered by final test program