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PWM current control motor driver ICs
MTD Series
MTD2029J
*Features
1) 2*j 3) 4) 5) 6*j 7) 8)*@ 9*j 10) 11*j 12*j
DMOS DUAL FULL BRIDGE PWM MOTOR DRIVER ICs
Built-in dual full-bridge For a 2-phase bipolar stepper motor or two DC motors Constant current control function (fixed OFF time PWM current control) 2-bit digital current selection *i It can respond to W1-2 phase excitation*j Selectable current decay mode *i Slow/Fast/Mix Decay Mode*j Stand-by function Noise cancellation function (An external filter is unnecessary) Phase Synchronous function Over heating shutdown function with thermal hysteresis Under Voltage Lock Out function Output current 1.5A, Output voltage 50V Surface mount type package with heat dissipation tab (HSOP40)
HSOP40
*Block Diagram
36 Vcc
TSD UVLO
2 37 38 3 OUT1 OUT2
1 VmmA
39 40 RsA
21 22 RsB
20
18 23 24 19 VmmB OUT3 OUT4
6 cpA cpB
5 cpC
Charge Pump
4
35 BRAKE A BRAKE B
26
GATE CIRCUIT
PHASE A 9 I0 A 10 I1 A 34 1/5 VrefA
Current Sensor
GATE CIRCUIT
8
13 PHASE B 12 2-bit digital current select I0 B 11 I1 B
2-bit digital current select
Blank
Blank
1/5 Vref B
27
+
ONE SHOT
ONE SHOT
+
Current Sensor
33 DECAY A CR A 32
+
SYNC 14 30 STB TAB PG 31 LG 15 SRM
+
CR B 29
28 DECAY B
Shindengen Electric Mfg.Co.Ltd
W1002
PWM current control motor driver ICs
*Pin Assignment
Vmm A OUT2 OUT2 cpC cpB cpA NC PHA A I0 A I1 A GND 11 12 13 14 15 16 17 18 19 20 30 29 28 27 26 25 24 23 22 21 1 2 3 4 5 6 7 8 9 10 40 39 38 37 36 35 34 33 32 31 GND Rs A Rs A OUT1 OUT1 Vcc BRA A Vref A DEC A CR A LG
MTD2029i
I1 B I0 B PHA B SYNC SRM NC NC OUT3 OUT3 Vmm B
STB CR B DEC B Vref B BRA B NC OUT4 OUT4 Rs B Rs B
[
Absolute Maximum Ratings *
Ta=25oC unless otherwise specified Parameter
Logic supply voltage Logic input Input voltage Output voltage Output current Output current (Peak) 1 Flywheel diode voltage Flywheel diode current Allowable power dissipation 2 Storage temperature range Maximum junction temperature
OUT,Rs are prepared each two terminals. Be sure to use, short-circuiting
]
Symbol Vcc VPHA/I0/I1/DEC/BRA/
SYNC/SRM/STB
Ratings 0~7 0~Vcc 50 1.5 2.5 50 1.5 2.9 -40~150 150
Units V V V A A V A W oC oC
Output
Temperature
VOUT Ic Ip 1 VF IF Pt 2 Tstg Tj(max)
1 Condition : tw < 20s 2 2inches grass epoxy board (FR4) and a heat dissipation Cu pattern area of 250mm2
Shindengen Electric Mfg.Co.Ltd
W1002
PWM current control motor driver ICs
*Electrical Characteristics
MTD2029i
( Ta=25oC, Vcc=5.0V unless otherwise specified ) Parameter Symbol Condition Logic supply current*i 2 circuit ON*j Icc(ON) VI0="L",VI1="L" Logic supply current (2 circuit OFF) Icc(OFF) VI0="H",VI1="H" Load supply current (2 circuit ON) IMM(ON) VMM=24V,VI0="L",VI1="L" Logic supply current (STB) Icc(STB) VSTB="L" Load supply current (STB) IMM(STB) VMM=24V,VSTB="L" Logic "H" input voltage VINH Operating Logic "L" input voltage VINL Operating PHASE "H" input current IPHAH VPHA=5.0V PHASE "L" input current IPHAL VPHA=0V I0 "H" input current II0H VI0=5.0V I0 "L" input current II0L VI0=0V I1 "H" input current II1H VI1=5.0V I1 "L" input current II1L VI1=0V DECAY "H" input current IDECH VDEC=5.0V DECAY "L" input current IDECL VDEC=0V BRAKE "H" input current IBRAH VBRA=5.0V BRAKE "L" input current IBRAL VBRA=0V SRM "H" input current ISRMH VSRM=5.0V SRM "L" input current ISRML VSRM=0V SYNC "H" input current ISYNCH VSYNC=5.0V SYNC "L" input current ISYNCL VSYNC=0V STB "H" input current ISTBH VSTB=5.0V STB "L" input current ISTBL VSTB=0V Reference voltage range Vref Vref=Vcc-2.0V Vref "H" input current IrefH Vref=3.0V Vref "L" input current IrefL Vref=0V Comparator Threshold (100%) Vs1 VI0="L",VI1="L" Comparator Threshold (70%) Vs2 VI0="H",VI1="L" Comparator Threshold (40%) Vs3 VI0="L",VI1="H" Upper MOSFET ON resistance RonH IOUT=-1.0A Lower MOSFET ON resistance RonL IOUT=1.0A Upper MOSFET leak current IleakH Vmm=50V,VOUT=0V Lower MOSFET leak current IleakL VOUT=50V,VTAB=0V Upper diode foward drop VFH IOUT=-1.0A Lower diode foward drop VFL IOUT=1.0A One shot off time Toff Ct=470pF,Rt=56k Blanking time tb Ct=470pF,Rt=56k Vmm=24.0V,Cp1=0.47F,Cp2=0.022F Charge pump setting time Tchg Under voltage lock out threshold VUVLO Operating Thermal shutdown temperature TTSD Operating
MIN 2.0 GND -42.0 -42.0 42.0 -42.0 95 64.4 36 -
TYP 12.0 11.0 9.0 5.0 -1.0 -1.0 -1.0 -5.0 -62.5 -62.5 62.5 -1.0 -62.5 -5.0 100 70 40 0.5 0.5 1.3 1.3 26.3 2.03 4.0 165
MAX 17.0 16.0 12.0 8.0 100 Vcc 0.8 10.0 -10.0 10.0 -10.0 10.0 -10.0 10.0 -15.0 10.0 -125.0 10.0 -125.0 125 -10.0 10.0 -125.0 3.0 10.0 -15.0 105 75.6 44 0.7 0.7 50.0 50.0 1.5 1.5 2.0 -
Unit mA mA mA mA A V V A A A A A A A A A A A A A A A A V A mA % % % A A V V s s ms V oC
*Recommended operation conditions
Parameter Junction temperature range Logic supply Load supply Symbol Tj Vcc Vmm Recommendation -25*120 4.75*5.50 15*45 Unit *Z V V
*Thermal resistance
Symbol AEja *1 Rating 43 Unit *Z/W
1 2inches grass epoxy board (FR4) and a heat dissipation Cu pattern area of 250mm2
Shindengen Electric Mfg.Co.Ltd
W1002
PWM current control motor driver ICs
*Truth Table
BRAKE A or B I0 A or B I1 A or B PHASE A or B OUT 1 or 4 OUT 2 or 3
MTD2029i
Output current ratio (%)
H H H H H H H L
L H L H L H L r
L L H H L L H r
L L L r H H H r
L L L r H H H L
H H H r L L L L
100 70 40 0 100 70 40 r : don't care
(Output OFF)
STB L H or Open (1) 1
Mode Stand-by Active
SYNC L or Open (2) H
Mode Disabled Synchronous
pull-up resistance built-in
2 pull-down resistance built-in
DECAY VDEC < VCR VDEC > VCR
DECAY Mode FAST SLOW
SRM L
(3)
Mode Disabled Synchronous Rectification
H or Open (4)
[
1.0V < VCR < 3.0V All Fast Decay Mode VDEC < 0.6V All Slow Decay Mode VDEC > 3.4V
]
3 4
SRM:Synchronous Rectification Mode pull-up resistance built-in
Shindengen Electric Mfg.Co.Ltd
W1002
PWM current control motor driver ICs
The example of a 2-phase stepper motor drive circuit
MTD2029i
Vcc=5V
Load Supply
Cp1 Rs
21 22 RsB 20 18 23 19 24 VmmB OUT3 OUT4 6 cpA cpB 5
Cp2
Rs
36 Vcc
TSD UVLO
2 37 38 3 OUT1 OUT2
39 1 40 VmmA RsA
4 cpC
Charge Pump
Vcc=5V
35 BRAKE A BRAKE B
26
Vcc=5 V CPU or GATE ARRAY Vref Vdec CPU or GATE ARRAY Vref Vdec
GATE CIRCUIT
PHASE A 9 I0 A 10 I1 A 2-bit digital current select
GATE CIRCUIT
CPU or GATE ARRAY
8
13 PHASE B 12 2-bit digital current select I0 B 11 I1 B
Vref
34
1/5 VrefA
Current Sensor
Blank
Blank
1/5 Vref B
27
+
ONE SHOT
ONE SHOT
+
Current Sensor
Vdec
33 DECAY A CR A 32
+
SYNC 14 30 STB TAB PG 31 LG 15 SRM
+
CR B 29
28 DECAY B
CtA
RtA
CPU or GATE ARRAY
RtB Vcc=5V
CtB
The example of a two DC motor drive circuit
Vcc=5V
Load Supply
Cp1
Cp2
Rs
36 Vcc
TSD UVLO
Rs
21 22 RsB 20 18 23 24 19 VmmB OUT3 OUT4 6 cpA cpB 5 cpC
Charge Pump
37 2 38 3 OUT1 OUT2
1 VmmA
39 40 RsA
4
35 BRAKE A BRAKE B
26
CPU or GATE ARRAY
GATE CIRCUIT
PHASE A 9 I0 A 10 I1 A 2-bit digital current select
GATE CIRCUIT
8
13 PHASE B 12 2-bit digital current select I0 B 11 I1 B
Vref
34
1/5 VrefA
Current Sensor
Blank
Blank
1/5 Vref B
27
+
ONE SHOT
ONE SHOT
+
Current Sensor
Vdec
33 DECAY A CR A 32
+
SYNC 14 30 STB TAB PG 31 LG 15 SRM
+
CR B 29
28 DECAY B
CtA
RtA
CPU or GATE ARRAY
RtB
CtB
Shindengen Electric Mfg.Co.Ltd
W1002
PWM current control motor driver ICs
MTD2029i
*oeConstachpigurelv
Ichop =
Vref 5 *~ Rs
*oe
One shot off time
Toff = Ct*~ Rt
*oe Pulse Blanking Time
tb = Ct*~
Rt*~
ln
1- 0.5*~ 10-3 Rt 3 - 0.5*~ 10-3Rt
*oeRecomndptvalus
Symbol Rs Rt Ct Cp1 Cp2 Recommended value 0.39 56k 470p 0.47 0.022 Unit F F F
Shindengen Electric Mfg.Co.Ltd
W1002
PWM current control motor driver ICs
*Outline Dimension
MTD2029i
( Unit : mm )
Shindengen Electric Mfg.Co.Ltd
W1002
PWM current control motor driver ICs
MTD2029i
!
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!
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s a certain t failures or igns for fi er
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use injury. zed
on/aticrme
ubmarine relay devics, and sytem for presving life, etc. IC products are to be used for devics or sytem tha are desi nsult our sale repsntaiv in advnce. red to last for
*oe We resv the right to make any changes to the contes of th *oe Details of specifaton should be exchangd at the adoptin *oe Al informat include in this manul is belivd to be acu damge incured when using the IC products as describ in infrgemt of paten or other rights caused by using thi *oe The provisn of this manul does not guarnte the right to u or other rights of our company. *oe No part of this manul may be repoduc or copied withou the
is manul withou prio notice in acordne with modifcatns of the IC products. rate and reliab. Howevr, our company takes no responiblty this manul. Neithr do we take any responiblty for isue ar s manul. se any third party's paten or other rights, or grant permison specif writen conset of Shindeg Electri Mfg. Co., Ltd.
to IC products. for any injury or isng from to use the paten
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W1002

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