SKT672-040-E Datasheet, PDF (3/19 Pages) ON Semiconductor – Stepping Motor Driver

STK672-040-E
Electrical Characteristics at Tc = 25°C, VCC1 = 24V, VCC2 = 5V
Parameters
Symbols
Conditions
Control supply current
Output saturation voltage
Average output current
FET diode forward voltage
ICC
Vsat
Ioave
Vdf
Pin 7, with ENABLE pin held low.
RL = 15Ω (I ≈ 1.5 A)
Load: R = 3.5Ω / L = 3.8mH
For each phase, Vref ≈ 1V
If = 1A
[Control Inputs]
Input voltage
Input current
[Vref Input Pin]
VIH
Except for the Vref pin
VIL
Except for the Vref pin
IIH
Except for the Vref pin
IIL
Except for the Vref pin
Input voltage
Input current
[Control Outputs]
VI
Pin 8
II
Pin 8
Output voltage
[Current Distribution Ratio (A·B)]
VOH
VOL
I = –3mA, pins MOI, MO1, MO2
I = +3mA, pins MOI, MO1, MO2
2W1-2, W1-2, 1-2
Vref
θ = 1/8
2W1-2, W1-2
Vref
θ = 2/8
2W1-2
Vref
θ = 3/8
2W1-2, W1-2, 1-2
Vref
θ = 4/8
2W1-2
Vref
θ = 5/8
2W1-2, W1-2
Vref
θ = 6/8
2W1-2
Vref
θ = 7/8
2
Vref
PWM frequency
fc
Note: A constant-voltage power supply must be used.
The design target value is shown for the current distribution ratio.
Package Dimensions
unit:mm (typ)
4161
53.0
9.0
min
0.465
Rating
typ
4.5
1.4
0.517
1.2
unit
max
15 mA
1.9
V
0.569
A
1.8
V
4
V
1
V
0
1
10 μA
125
250
510 μA
0
2.5
V
1
μA
2.4
V
0.4
V
100
92
83
71
55
40
20
100
37
47
%
%
%
%
%
%
%
%
57 kHz
1
22
2.0
0.5
0.4
21 2=42
2.9
No. 5227-3/19