SKT672-070-E Datasheet, PDF (3/18 Pages) ON Semiconductor – Stepping Motor Driver

STK672-070-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 6, with ENABLE pin held low.
RL = 12Ω
Load: R = 3.5Ω / L = 3.8mH
For each phase
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 7
II
Pin 7, 2.5V input
Output voltage
[Current Distribution Ratio (A·B)]
VOH
VOL
I = –3mA, pins MOI
I = +3mA, pins MOI
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)
4186
46.6
41.2
8.5
3.6
1
15
2.0
0.5
0.4
(6.6)
14 2.0=28
2.9
min
0.445
Rating
typ
2.1
0.65
0.5
1
unit
max
14 mA
1.2
V
0.56
A
1.8
V
4
V
1
V
0
1
10 μA
125
250
510 μA
0
2.5
V
330
415
545 μA
2.4
V
0.4
V
100
92
83
71
55
40
21
100
37
47
%
%
%
%
%
%
%
%
57 kHz
No.7307-3/18