2-ph Stepper-motor Driver ICs SPF7211
(unit: mm)
External Dimensions
Features
0.2
17.28
● Low output saturation voltage (high-side: 1.5V max.; low-side: 0.8V max.)
● Built-in recovery diode
● Built-in standby function
+0.1
–0.05
0.2
1.0
Fin
thickness
15.58
24
13
●
Built-in overcurrent and thermal protection circuits and low voltage input shutoff function
● Built-in overload and disconnection detection function
a
b
Absolute Maximum Ratings
Parameter
Symbol
Ratings
Unit
Remarks
VIN VBB
1
12
Main power supply voltage
Input voltage
VBB
VIN
Io
IoPeak
VFlag
IFlag
VRs
40
V
V
+0.15
–0.05
0.4
0.25
–0.3 to 15
1.27
0.8
1.0
7
3
+0.15
Output current
A
– 0.05
Tw 1mS
VFlag VBB
0.25
Flag terminal withstand voltage
Flag terminal current
Detect voltage
V
mA
V
–2 to 2
4.1
39
150
–40 to 110
–40 to 150
a) Part No.
b) Lot No.
1
For Ta =25°C
*
Power dissipation
PD
W
For Tc (Ttab) =25°C
Junction temperature
Operating temperature
Storage temperature
Tj
Top
Tstg
°C
°C
°C
Note: 1: With glass epoxy + copper foil board (size 5.0•7.4cm; t: glass epoxy=1.6mm/copper foil=18µm)
*
Standard Circuit Diagram
Recommended Operation Range
Rs
Parameter
Symbol
Ratings
Unit
Remarks
VIN VBB
Continuous
VFlag VBB
Main power supply voltage
Input voltage
Output current
VBB
VIN
Io
6 to 18
–0.3 to 7.0
0.5
0 to 7.0
0 to 1.0
–1 to 1
V
V
A
V
mA
V
Flag terminal withstand voltage
Flag terminal current
Detect voltage
VFlag
IFlag
VRs
Top
µPC
(ECU)
SPM
Operating temperature
–40 to 110
°C
Electrical Characteristics
Rs
Ratings
typ
Parameter
Symbol
Unit
Conditions
min
max
50
50
Ct
VBB = 6 to 18V
2200pF
IBB
IBBS
mA
µA
V
In ordinary operation (no load)
At sleep
+
Main power supply current
Rs 1Ω typ (1 to 2W)
IoM VRs/Rs
Low voltage protection operation voltage
UVLO hysteresis voltage
VUVLO
3.5
4.5
VUVLOhys
IoleakL
IoleakH
0.5
V
–100
µA
µA
V
V
V
V
V
V
V
V
V
BB = 40V, Vo=0V
BB = Vo=40V
Output leak current
100
0.5
0.8
1.2
1.5
1.2
1.3
Excitation Signal Time Chart
2-phase excitation
Io=0.5A
Io=0.8A
Io=–0.5A
Io=–0.8A
Io=0.5A
Io=–0.5A
Io=–0.5A
VsatL
Clock
Ph1
I10, I11
Ph2
0
L
H
L
1
H
H
L
2
3
L
H
H
H
0
L
H
L
1
H
H
L
Output saturation voltage
H
H
H
H
VsatH
VFL
VFH
VFGO
VIL
I20, I21
H
H
H
H
Recovery diode forward voltage
1 to 2-phase excitation
Clock
Ph1
I10, I11
Ph2
I20, I21
1.2
2.0
0
L
H
L
1
H
L
L
H
2
H
H
L
3
H
H
H
L
4
5
L
L
H
H
6
L
H
H
H
7
L
H
L
L
0
L
1
H
L
2
H
H
L
3
H
H
H
L
0.8
V
V
V
Input voltage
Input terminal
H
H
H
H
VIH
H
L
Hysteresis voltage
VIhys
IIL
IIH
0.5
L
–5
–5
–30
5
5
µA
µA
µA
µA
mV
mV
mV
kHz
kHz
V
H
H
H
H
H
Ph terminal
Input current
* For the 1 to 2-phase excitation application, switch the Ph signal in the step of 1-ph
excitation (Ixx turns from high to low).
The OPEN detection function is invalid except in this sequence.
IIL
IIH
VIL=0.8V
VIH=2.0V
Ix0=High, Ix1=High
Ix0=Low, Ix1=High
Ix0=High, Ix1=Low
Ct=2200pF 20%
Ct=2200pF 20%
Ixx, Set terminals Input current
Detect voltage
50
740
480
90
72
36
660
420
40
28.8
14.4
700
450
70
48
24
VRs
Oscillation frequency
PWM frequency
Fosc
FPWM
VctL
0.5
1.5
720
–120
3.0
Ct terminal threshold voltage
VctH
V
1
*
Ictsink
Ictsouce
VocpL
VocpH
VocpL
VocpH
Vopen
IleakFlag
µA
µA
V
V
V
Ct terminal current
1.5
BB–2.5
1.0
4.2
BB–1.7
1.85
Out voltage
Out voltage
BB = 5.5V
BB = 5.5V
Sence voltage
VFlag = 7V
IFlag = 1mA
V
V
V
BB–2.0
V
V
Overcurrent detection voltage
V
V
BB–2.3
BB–1.5
V
Open detection voltage
Flag terminal leak current
Flag terminal saturation voltage
Flag terminal current
–60
mV
µA
V
10
0.5
3
VFlag
L
IFlag
Tpw
mA
µS
µS
Hz
—
µS
µS
µS
µS
µS
µS
µS
µS
µS
µS
µS
µS
µS
°C
°C
°C
°C
10
100
17
In ordinary operation
At sleep
Ct=2200pF
Response pulse
width
Pulse rate
Tpws
Fclock
Pulse
tocp1
tocp2
tocp3
topen1
topen2
tonH1
toffH1
tonH2
toffH2
tonL1
toffL1
tonL2
toffL2
Tj
Set terminal
24
256
5.0
10.0
10.0
5.0
5.0
1.5
1.5
31
Pulse number
2.5
5.0
5.0
2.5
2.5
10.0
20.0
20.0
10.0
10.0
In ordinary operation; Ct=2200pF
At switching the phase
When Ixx shifts from L to H
In ordinary operation
OCP operation
Flag response
time
Open operation
When Ixx shifts from L to H
100
100
I/O propagation time
2.0
0.5
100
100
150
Thermal protection temperature
Thermal protection hysteresis
Thermal alarm temperature
Thermal alarm hysteresis
∆Tj
Talarm
∆Talarm
20
130
20
2
*
120
140
Note:
1: The Ct terminal threshold voltage and current are the design values. Warranty is based on the oscillation frequency.
2: Thermal protection and alarm temperatures are design values.
*
58
*