SHINDENGEN MTD2525J

Stepper Motor Driver IC
MTD Series
DMOS Microstepping
Dual PWM Motor Driver
MTD2525J
Features
●Dual stepper motor driver
●For a bipolar stepper motor
●Built in constant current chopping ( fixed frequency )
●DMOS output ; Vout = 40V, Iout = 1.0A
●2bit digital current selection
●Selectable current decay mode ( Slow/Fast/Mix Decay Mode)
●Built in UVLO function , thermal shutdown function
●Built in system reset circuitry
●Built in voltage regulator ( VREG=3.3V , Iout=250mA )
( VREG=2.5V , Iout=250mA )
●Surface mount type package with heat dissipation tab(HSOP40)
HSOP40
■Absolute maxmum ratings / Ta=25℃
Parameter
Symbol
Value
Unit
Motor supply voltage
Vmm
40
V
Motor driver output current
IOUT
1.0
A
Logic supply voltage
Vcc1, Vcc2
0 ∼ 7
V
Logic input voltage
V IN
0 ∼ Vcc
V
3.3V-Regulator output current
I REG
250
mA
2.5V-Regulator output current
I REG
250
mA
Reset-IC output current
I RST
7
mA
Reset-IC output voltage
V RST
8
V
Power dissipation *
PD
2.9
W
Storage temperature range
Tstg
-40 ∼ 150
℃
Maximum iunction temperature
Tj
150
℃
*50.8×50.8×1mm3 Glass Epoxy Board(FR4),250mm2 Cupper Pattern
Shindengen Electric Mfg.Co.Ltd
W1001
Stepper Motor Driver IC
MTD2525J
■Pin Assignment
<TOP VIEW>
1
2
3
4
5
6
7
8
9
10
OUT A2-2
OUT A2-1
Rs A2
VmmA
PHA A2
I0 A2
I1 A2
cpA
cpB
cpC
GND
Tab
Tab
REG2.5V
REG3.3V
Vcc 1
I1 B2
I0 B2
PHA B2
VmmB
Rs B2
OUT B2-1
OUT B2-2
OUT A1-2
OUT A1-1
Rs A1
PHA A1
I0 A1
I1 A1
CR A
DEC A
Vr A
RESET-OUT
40
39
38
37
36
35
34
33
32
31
11
12
13
14
15
16
17
18
19
20
30
29
28
27
26
25
24
23
22
21
GND
Vcc 2
Vr B
DEC B
CR B
I1 B1
I0 B1
PHA B1
Rs B1
OUT B1-1
OUT B1-2
■Recommended operation conditions
Parameter
Symbol
Recommendation
Unit
Motor supply voltage
Vmm
15∼35
V
Vcc1 logic supply voltage
Vcc1
4.75∼5.50
V
Vcc2 logic supply voltage
Vcc2
4.20∼5.50
V
Vr input voltage
Vr
0∼5
V
Junction temperature
Tj
-25∼120
℃
■Thermal resistance
Symbol
Value
Unit
θja
43
℃/W
*50.8×50.8×1mm3 Glass Epoxy Board(FR4),250mm2 Cupper Pattern
Shindengen Electric Mfg.Co.Ltd
W1001
Stepper Motor Driver IC
MTD2525J
■Electrical Characteristics 1
Ta=25℃,Vcc1=5V,Vcc2=5V,Vmm=24V unless otherwise specified
Parameter
Symbol
Condition
MIN
TYP
MAX
Unit
Vcc1 Logic supply current
Icc1
3.3-REG and 2.5-REG no load.
RESET-OUT="High"
-
5
10
mA
Thermal shutdown operation temperture
Tsd
( Notes 1 )
(150)
170
-
℃
Common to all function
Stepper motor drivers
Vcc2 UVLO Enable threshold
Vcc2UVLO
-
3.6
3.8
4.0
V
Vcc2 Logic supply current(when all circuit stop)
Icc2(OFF)
-
-
10
15
mA
Vcc2 Logic supply current(all circuit operation)
Icc2(ON)
-
-
15
20
mA
-
20
30
mA
Moter supply current(all circuit operation)
ImmON
The completion of charge
Moter supply current(stand-by)
Imm(STB)
Vcc=OPEN or 0V, Vmm=35V
-
-
100
mA
Pha/I0/I1”High” input voltage V IN H
-
2.0
−
Vcc2
V
Pha/I0/I1 ”Low” input voltage V IN L
-
GND
−
0.7
V
Pha/I0/I1 input current
I IN H
I IN L
V IN = 5V
V IN = 0V
−
−
10
μA
DEC ”High” input current I DEC H
V DEC = 5V
−
333
500
μA
DEC "Low" input current I DEC L
V DEC = 0V
−
−
-15
μA
Reference input current
I ref
Vref = 3V
−
50
100
μA
Comparator threshold(100%)
Vs1
I0 = Low , I1 = Low
95
100
105
%
Comparator threshold(70%)
Vs2
I0 = High , I1 = Low
64
70
76
%
Comparator threshold(40%)
Vs3
I0 = Low , I1 = High
36
40
44
%
Source driver ON resistance
R ON H
Iout = -0.8A
−
0.6
0.8
Ω
Sink driver ON resistance
R ON L
Iout = 0.8A
−
0.6
0.8
Ω
I leak
Vmm = 35V , Vout = 0V
Vout = 35V , Vtab = 0v
−
−
100
μA
tb
Ct=3300pF , Rt=18kΩ
−
1.55
−
μs
Tchg
Cp1=0.22μF,Cp2=0.01μF
Vmm=27V,Vcc2=0V→5V
−
−
1.5
ms
Output leakagr current
Blanking time
CpA Charge setting time
( Notes 1) shutdown temperature is assured by design
Shindengen Electric Mfg.Co.Ltd
W1001
Stepper Motor Driver IC
MTD2525J
■Electrical Characteristics 2
Ta=25℃ unless otherwise specified
Parameter
Symbol
Condition
MIN
TYP
MAX
Unit
Output voltage 1
VREG3.3_1
Vcc1=5.0V,I REG3.3 = 40mA
3.21
3.30
3.39
V
Output voltage 2
VREG3.3_2
Vcc1=3.60V,I REG3.3 = 100mA
3.10
3.30
3.39
V
Output max load current 1
IREG3.3_1
Vcc1=4.75V,V REG3.3 = 3.21V
-
-
250
mA
Output max load current 2
IREG3.3_2
Vcc1=3.60V,V REG3.3 = 3.10V
-
-
100
mA
Line regulation
△V LINE3.3
Vcc1=4.5∼5.0V ,
I REG3.3= 40mA
−
10
20
mV
Load regulation
△V LOAD3.3
Vcc1 = 5V , I REG3.3 = 0∼ 50mA
−
30
60
mV
Ripple rejection
RR3.3
Vcc1=5V , V RIPPLE=1Vp-p
I REG3.3=40mA,f=120Hz,
C3.3=4.7μF
50
70
−
dB
Output voltage 1
VREG2.5_1
Vcc1=5.0V,I REG2.5 = 40mA
2.425
2.500
2.575
V
Output voltage 2
VREG2.5_2
Vcc1=3.6V,I REG2.5 =100mA
2.300
2.500
2.575
V
Output max load current 1
IREG2.5_1
Vcc1=4.75V,V REG2.5 = 2.425V
-
-
250
mA
Output max load current 2
IREG2.5_2
Vcc1=3.60V,V REG2.5 = 2.300V
-
-
100
mA
Line regulation
△V LINE2.5
Vcc1=4.5∼5.0V , I REG2.5= 40mA
−
10
20
mV
Load regulation
△V LOAD2.5
Vcc1 = 5V , I REG2.5 = 0∼ 50mA
−
30
60
mV
Ripple rejection
RR2.5
Vcc1=5V , V RIPPLE=1Vp-p
I REG2.5=40mA,f=120Hz,
C2.5=4.7μF
50
70
−
dB
Detection voltage
VsRST
RL = 1KΩ
VRST(sat)≦0.4V
Vcc1=High → Low
4.15
4.35
4.55
V
Output leakage current
I RSTH
V RST = 8V
−
−
3
μA
VRST(sat)
Vcc1 = 2.5V , IRST = 3mA
−
0.2
0.4
V
VopL
RL = 1KΩ
VRST(sat)≦0.4V
−
0.9
1.0
V
60
100
140
ms
3.3V - Voltage regulator
2.5V - Voltage regulator
System reset circuitry
Output saturation voltage
Operating logic supply vltage
"H" Transport delay time
tD
Shindengen Electric Mfg.Co.Ltd
W1001
Stepper Motor Driver IC
MTD2525J
■Block diagram / Typical application
Step Motor
Logic Supply
Vcc=5V
Load
Load
Logic Supply
Supply
Vcc=5V
PHA B2
Vcc2
RsA2
RsA1
OUTA
1-1 OUT A
1-2
Vcc2
UVLO
Step Motor
Supply
Vmm A
OUT A
2-1
PHA A2
OUT A
2-2
cpA
cpB
cpC
OUT B
OUT B
2-2
2-1
Charge
Pump
TSD
RsB2
Vcc1
RsB1
Vmm B
OUT B
1-2
OUTB
1-1
1.25REF
C o n tro l C ir cu it
C o n tro l C ir cu it
DEC A
DMOS
Full
Bridge
1.25REF
DMOS
Full
Bridge
C o n tro l C ir cu it
PHA A1
Vcc 2
DMOS
Full
Bridge
TSD
C o n tro l C ir cu it
1.25REF
RESET
OUT
3.3V
Regulator
Reg
3.3V
2.5V
Regulator
Reg
2.5V
TSD
TSD
UVLO
SYSTEM
RESET
DMOS
Full
Bridge
UVLO
1.25REF
Vcc 2
PHA B1
DEC B
RtB
RtA
UVLO
CR A
CtB
CtB
CtA
OSC
VrA
OSC
2-bit digital
current select
54k
2-bit digital
current select
2-bit digital
current select
2-bit digital
current select
6k
VrB
54k
6k
GND
TAB
I0A1
I1A1
I0A2
I1A2
I1B2
I0B2
I1B1
I0B1
■DEC truth table
条件
V DEC < 0.7V
1V< V DEC < 3V
V DEC > 3V
DECAY Mode
Slow Decay
Mix decay
Fast decay
■PHASE truth table
PHA A1
H
L
OUT A1-1
H
L
OUT A1-2
L
H
PHA A2
H
L
OUT A2-1
H
L
OUT A2-2
L
H
B side truth table is the same to A side
■Current control truth table
I0
L
H
L
H
I1
L
L
H
H
Shindengen Electric Mfg.Co.Ltd
Output current (%)
100
70
40
0
W1001
Stepper Motor Driver IC
MTD2525J
■Outline Drawing
( Unit : mm )
Shindengen Electric Mfg.Co.Ltd
W1001
Stepper Motor Driver IC
!
!
MTD2525J
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probability that the semiconductor products may occasionally fail or malfunction. Please take careful precautions against product failures or
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applications shown below, always make sure to consult us in advance.
Special Applications
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Specialized Applications
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Shindengen Electric Mfg.Co.Ltd
W1001