MTQZ75 SERIES
DC-DC CONVERTE R 75W, Railway Certified
E-mail:sales@minmax.com.tw Tel:886-6-2923150
2019/06/13 REV:12 Page 1 of 8
®
FEATURES
►Industrial Standard Quarter Brick Package
►Wide Input Range 43-101VDC & 66-160VDC
►Excellent Efficiency up to 92%
►I/O Isolation 3000VAC with Reinforced Insulation
►Operating Ambient Temp. Range -40°C to +80°C
►No Min. Load Requirement
►Under-voltage, Overload/Voltage/Temp. and Short Circuit
Protection
►Remote On/Off, Output Voltage Trim, Output Sensing
►Vibration and Shock/Bump Test EN 61373 Approved
►Cooling, Dry & Damp Heat Test IEC/EN 60068-2-1, 2, 30
Approved
►Railway EMC Standard EN 50121-3-2 Approved
►Railway Certified EN 50155 (IEC60571) Approved
►Fire Protection Test EN 45545-2 Approved
►UL/cUL/IEC/EN 60950-1 Safety Approval & CE Marking
PRODUCT OVERVIEW
The MINMA X MTQZ75 series is a new generation of high performance, convection-cooled 75W DC-DC converters designed specifically for railway
applications. They are available for the popular railway input voltages of either 72(4 3-101)VDC or 110(66-160)VDC.
The converters conform to railway industry transient standard EN 50155 and complies also with EMC standard EN 50121-3-2.
Advanced circuit topology provides a very high efficiency up to 92% which allows operating temperatures range of -40°C to +80°C. For improved heat
dissipation the modules can be supplied with a heatsink. Further product features include high, reinforced insulation, remote On/Off control, under-voltage
shutdown as well as overload, over voltage, over temperature and short circuit protection.
Model Selection Guide
Model
Number Input
Voltage
(Range)
Output
Voltage Output Current Input Current Reflected
Ripple
Current
Over
Voltage
Protection
Max. capacitive
Load Efficiency
(typ.)
Max.
@Max. Load
@No Load
@Max. Load
VDC
VDC
mA
mA(typ.)
mA(typ.)
mA(typ.)
VDC
μF
%
MTQZ75-72S05
72
( 43 ~ 101 )
5
15000
1170
50
35
6.2
25500
89
MTQZ75-72S12
12
6250
1132
45
15
4400
92
MTQZ75-72S15
15
5000
1132
45
18
2800
92
MTQZ75-72S24
24
3125
1145
55
30
1100
91
MTQZ75-110S05
110
( 66 ~ 160 )
5
15000
766
40
35
6.2
25500
89
MTQZ75-110S12
12
6250
749
35
15
4400
91
MTQZ75-110S15
15
5000
749
35
18
2800
91
MTQZ75-110S24
24
3125
758
50
30
1100
90
Input Specifications
Parameter
Model
Min.
Typ.
Max.
Unit
General
Input Spec ifications comply t o
Input Sur ge Volt a ge (100ms. max)
72V Input Models
-0.7
---
165
VDC
110V Input Models
-0.7
---
250
Start-up Thresh old Vol ta g e
72V Input Models
---
---
43
110V Input Models
---
---
66
Under Voltage Shutdown
72V Input Models
---
40
---
110V Input Models
---
63
---
Start-up Time
All Models
---
0.35
---
S
Input Filter
Internal Pi Type
MTQZ75 SERIES
DC-DC CONVERTE R 75W, Railway Certified
E-mail:sales@minmax.com.tw Tel:886-6-2923150
2019/06/13 REV:12 Page 2 of 8
®
Remote On/Off Control
Parameter
Conditions
Min.
Typ.
Max.
Unit
Converter On
3.5V ~ 12V or Open Circuit
Converter Off
0V ~ 1.2V or Short C ircuit
Control Input Current (on)
Vctrl = 5.0V
---
0.5
---
mA
Control Input Current (off)
Vctrl = 0V
---
-0.5
---
mA
Control Commo n
Referenc ed to Negative Input
Standby I nput Cur rent
Nominal Vin
---
2.5
---
mA
Output Specifications
Parameter
Conditions / Model
Min.
Typ.
Max.
Unit
Output V oltage Setti ng Accur acy
---
---
±1.0
%Vnom.
Line Regul ation
Vin= M in. to Max. @ Ful l Load
---
---
±0.2
%
Load Re gul ati o n
Io=0% to 100%
---
---
±0.3
%
Minimum Load
No minim um Lo ad Re q uir em ent
Ripple & Noise(3) 0-20 MHz Bandwidth
24V Output
---
---
150
mV P-P
Other Outp ut
---
---
100
mV
P-P
Tr a ns ient Rec ov er y T i me
25% Load Step Change (2)
---
250
---
μsec
Transient Resp onse Deviati on
---
±3
±5
%
Temperature C oeffic ient
---
---
±0.02
%/℃
Trim Up / Down Range (See Page 6)
% of n ominal output voltage
---
---
±10
%
Over Load Protection
Hiccup
---
150
---
%
Short Circuit Protection
Continuo us, Automatic Recovery (Hi ccup Mode 0.3Hz typ.)
General Specifications
Parameter
Conditions
Min.
Typ.
Max.
Unit
I/O Isol ati on Voltage
Reinforced Ins ulation, R ated F or 60 Seco nds
3000
---
---
VACrms
Isol ation Voltage Input/Output to case
1500
---
---
VDC
I/O Isol ati on Resi s tance
500 V DC
1000
---
---
MΩ
I/O Isol ati on Ca paci ta nc e
100kHz, 1V
---
---
3000
pF
Switching Frequency
---
320
---
kHz
MTBF(calculated)
MIL-HDBK-217F@25℃ Full Load, Ground Benign
143,800
Hours
Safety Standards
UL/cUL 609 50 -1 recognition(UL certificate), IEC/EN 60950-1 (CB-report), EN 50155, IEC 60571
MTQZ75 SERIES
DC-DC CONVERTE R 75W, Railway Certified
E-mail:sales@minmax.com.tw Tel:886-6-2923150
2019/06/13 REV:12 Page 3 of 8
®
Environmental Specifications
Parameter Conditions / Model Min.
Max.
Unit
without Heatsink
with Heatsink
Operat i ng Temp erat ur e Range
Nominal Vin, Load 100% Inom.
(for P ower Derati ng see relative Der ating C urves )
MTQZ75-72S12, MTQZ75-72S15
-40
56
61
℃
MTQZ75-72S24
49 55
MTQZ75-110S12, MTQZ75-110S15
MTQZ75-110S24
43
48
MTQZ75-72S05, MTQZ75-110S05
36
42
Thermal Im pedance
20LFM Convect ion without Heats ink
7.5
---
℃/W
20LFM Convect ion with Heat sink
6.8
---
100LF M Co nvec t io n with out He ats i nk
6.1
---
100LF M Co nvec t io n with H eat s ink
4.1
---
200LF M Co nvec t io n with out He ats i nk
5.3
---
200LF M Co nvec t io n with H eat s ink
3.3
---
400LF M Co nvec t io n with out He ats i nk
3.9
---
400LF M Co nvec t io n with H eat s ink
2.2
---
Base-plate Temperature Range
-40
+105
℃
Over Temper at ure Protection (Base Plate)
---
+110
℃
Stora g e Temper atur e Range
-50
+125
℃
Cooling
Compliance to IEC/EN 60068-2-1
Dry He at
Compliance to IEC/EN 60068-2-2
Damp Heat
Compliance to IEC/EN 60068-2-30
Shoc k & Vi bration Test
Compliance to IEC/EN 61373
Fire Prot ecti on Test
Complianc e to EN 45545-2
Operating Humidity (non con densi ng)
5
95
% rel. H
Lead Tem perature ( 1.5mm from c ase f or 10Sec.)
---
260
℃
EMC Specifications
Parameter
Standards & Level
Performance
General
Compli a nc e wit h EN 50121-3-2 Railway Applic ations
EMI
Cond uct ion an d Ra di ati o n
EN 55032/11, FCC part 15
Class A
(7)
EMS
EN 55024
ESD
EN 61000-4-2 air ± 8kV, Contact ± 6kV
A
Radiated immunity
EN 61000-4-3 10V/m
A
Fast transient
(6)
EN 61000-4-4 ±2kV
A
Surge(6)
EN 61000-4-5 ±2kV
A
Cond ucte d immunity
EN 61000-4-6 10Vrms
A
PFMF
EN 61000-4-8 100A/m, 1000A/m For 1 Second
A
MTQZ75 SERIES
DC-DC CONVERTE R 75W, Railway Certified
E-mail:sales@minmax.com.tw Tel:886-6-2923150
2019/06/13 REV:12 Page 4 of 8
®
Power Derating Curve
0
20
40
60
80
100
-40 -20 020 40 60 80 100
Output Power (%)
Ambient Temperature ℃
20LFM
100LFM
200LFM
400LFM
110
0
20
40
60
80
100
-40 -20 020 40 60 80 100
Output Power (%)
Ambient Temperature ℃
20LFM
100LFM
200LFM
400LFM
110
MTQZ75-72S1 2, MTQZ75-72S15 Derating Curv e w ithout Heatsink
MTQZ75-72S12, MTQZ75-72S15 Derat ing C urve wi th Heatsink
0
20
40
60
80
100
-40 -20 020 40 60 80 100
Output Power (%)
Ambient Temperature ℃
20LFM
100LFM
200LFM
400LFM
110
0
20
40
60
80
100
-40 -20 020 40 60 80 100
Output Power (%)
Ambient Temperature ℃
20LFM
100LFM
200LFM
400LFM
110
MTQZ75-110S12,MTQZ75-110S15, MTQZ75-72S24
Derati ng Curve without Heatsink
MTQZ75-110S12,MTQZ75-110S15, MTQZ75-72S24
Derati ng Curve with Heatsink
0
20
40
60
80
100
-40 -20 020 40 60 80 100
Output Power (%)
Ambient Temperature ℃
20LFM
100LFM
200LFM
400LFM
110
0
20
40
60
80
100
-40 -20 020 40 60 80 100
Output Power (%)
Ambient Temperature ℃
20LFM
100LFM
200LFM
400LFM
110
MTQZ75-110S24 Derating Curve witho ut Heat sink
MTQZ75-110S24 Derating Curve with Heatsi nk
0
20
40
60
80
100
-40 -20 020 40 60 80 100
Output Power (%)
Ambient Temperature ℃
20LFM
100LFM
200LFM
400LFM
110
0
20
40
60
80
100
-40 -20 020 40 60 80 100
Output Power (%)
Ambient Temperature ℃
20LFM
100LFM
200LFM
400LFM
110
MTQZ75-72S05, MTQZ75-110S05 Der at ing Cur v e wit ho ut Heat s ink MTQZ75-72 S05, MTQZ75-110S05 Der at ing Cur v e wit h Heat si nk
Notes
1
Spec ifications typical at Ta=+25℃, resistive load, no m inal input voltage and rated output current u nless otherwise noted.
2
Transient r ecovery ti m e is measured to within 1% err or band for a step change in out put load of 75% to 1 00%.
3
Rippl e & Noise m eas urem ent with a 1μF MLCC and a 10μF Tant alum Ca pacitor.
4
Other input and output voltage may b e available, please contact factory.
5
Part number for heat sink only MT-HS1.
6
To meet EN 61000-4-4 & EN 61000-4-5 by adding a c apaci tor across the in put pins. Please contact MINM A X.
7
To meet EN 550 32 & EN 550 11 Class A an external filter, please contact MI NMAX.
8
It i s neces sary to parallel a capac itor acro ss t he input pins u nder normal oper ation. Minim um Ca pac it a nce: 68μF/ 200V.
9
Specifications are subject to change witho ut notice.
MTQZ75 SERIES
DC-DC CONVERTE R 75W, Railway Certified
E-mail:sales@minmax.com.tw Tel:886-6-2923150
2019/06/13 REV:12 Page 5 of 8
®
Package Specifications
Mech anic al Dim ensio ns Pin Conn ections
Pin Function
1
+Vin
2
Remote On/Off
3 -Vin
4
-Vout
5
* -Sense
6
Trim
7 * +Sense
8
+Vout
* If remote sense not used the +sense should be connected to
+out put and –se nse should be con nected to –output
Maximum output devi atio n is 10% incl usiv e of trim
* Please refer to page 6 for pcb installation of power module
according to the pictures of standard kit or heatsink kit from
end users.
►All dimens ions in mm (inches)
►Tol erance: X.X±0.5 (X.XX±0.02)
X.XX±0.25 ( X.XXX±0.01)
►Pin diameter 1.0 ±0.05 (0.04±0.002)
►Pin diameter
1.5 ±0.05 (0.06±0.002)
Physical Characteristics
Case Size
:
57.9x36.8x12.7 mm (2.28x1.45x0.5 inches)
Case Mat er ial
:
Aluminum Frame with Black Ano diz ed Co ati ng
Top Si de Base M at eri al
:
Aluminum Plate
Bottom Si de Base Material
:
Non-conductive Black Plastic Base Pl ate
Potti ng Material
:
Epoxy (UL94-V0)
Weight
:
61g
Heatsink (Option –HS)
Physical Characteristics
Heatsink M aterial : Aluminum
Finish : Bl ack Anodi zed Coating
Weight
:
13g
►The advantages of adding a heat sink are:
1. To improve h eat dissip ation and inc rease the stabilit y and
reliability of the DC-DC c onverters at high op erating
temperatures.
2. To increase operati ng tem peratur e of the DC-DC converter,
please refer to Derating Curve.
Thermal pad
Heat-sink
Converter
20.0 [0.78] Max
50.80 [2.00]
57.9 [2.28]
47.20 [1.86]
15.24 [0.60]
26.20 [1.03]
36.8 [1.45]
15.24 [0.60]
7.62 [0.30]
4.10 [0.16] min12.7 [0.50]
1.00 [0.04] DIA 6PLACES 1.50 [0.06] DIA 2PLACES
Mounting Inserts
M3x0.5 Through 4pl.
1
2
34
5
6
7
8
BOTTOM VIEW
MTQZ75 SERIES
DC-DC CONVERTE R 75W, Railway Certified
E-mail:sales@minmax.com.tw Tel:886-6-2923150
2019/06/13 REV:12 Page 6 of 8
®
PCB Installation of End Users
Standard Kit
Heatsink Kit
1. Please evaluates mechanical stress (vibration, shock, bu m p) dur ing field applicat ions.
2. It has to equip with installation kit if escess the guar anteed specif ications , please contacts MI NMAX for detail information.
3. Applied torque per screw 9 kgf .cm mi n.
MTQZ75 SERIES
DC-DC CONVERTE R 75W, Railway Certified
E-mail:sales@minmax.com.tw Tel:886-6-2923150
2019/06/13 REV:12 Page 7 of 8
®
External Output Trimming
Output can be ext ernal ly trimmed by using the method s hown below
MTQZ75-XXS05 Trim Ta bl e
Trim down
1
2
3
4
5
6
7
8
9
10
%
Vout=
Vox0.99
Vox0.98
Vox0.97
Vox0.96
Vox0.95
Vox0.94
Vox0.93
Vox0.92
Vox0.91
Vox0.90
Volts
Rd=
138.88
62.41
36.92
24.18
16.53
11.44
7.79
5.06
2.94
1.24
KOhms
Trim up
1
2
3
4
5
6
7
8
9
10
%
Vout=
Vox1.01
Vox1.02
Vox1.03
Vox1.04
Vox1.05
Vox1.06
Vox1.07
Vox1.08
Vox1.09
Vox1.10
Volts
Ru=
106.87
47.76
28.06
18.21
12.30
8.36
5.55
3.44
1.79
0.48
KOhms
MTQZ75-XXS12 Trim Ta bl e
Trim down
1
2
3
4
5
6
7
8
9
10
%
Vout=
Vox0.99
Vox0.98
Vox0.97
Vox0.96
Vox0.95
Vox0.94
Vox0.93
Vox0.92
Vox0.91
Vox0.90
Volts
Rd=
413.55
184.55
108.22
70.05
47.15
31.88
20.98
12.80
6.44
1.35
KOhms
Trim up
1
2
3
4
5
6
7
8
9
10
%
Vout=
Vox1.01
Vox1.02
Vox1.03
Vox1.04
Vox1.05
Vox1.06
Vox1.07
Vox1.08
Vox1.09
Vox1.10
Volts
Ru=
351.00
157.50
93.00
60.75
41.40
28.50
19.29
12.37
7.00
2.70
KOhms
MTQZ75-XXS15 Trim Ta bl e
Trim down
1
2
3
4
5
6
7
8
9
10
%
Vout=
Vox0.99
Vox0.98
Vox0.97
Vox0.96
Vox0.95
Vox0.94
Vox0.93
Vox0.92
Vox0.91
Vox0.90
Volts
Rd=
530.73
238.61
141.24
92.56
63.35
43.87
29.96
19.53
11.41
4.92
KOhms
Trim up
1
2
3
4
5
6
7
8
9
10
%
Vout=
Vox1.01
Vox1.02
Vox1.03
Vox1.04
Vox1.05
Vox1.06
Vox1.07
Vox1.08
Vox1.09
Vox1.10
Volts
Ru=
422.77
189.89
112.26
73.44
50.15
34.63
23.54
15.22
8.75
3.58
KOhms
MTQZ75-XXS024 Trim Table
Trim down
1
2
3
4
5
6
7
8
9
10
%
Vout=
Vox0.99
Vox0.98
Vox0.97
Vox0.96
Vox0.95
Vox0.94
Vox0.93
Vox0.92
Vox0.91
Vox0.90
Volts
Rd=
598.66
267.78
157.49
102.34
69.25
47.19
31.44
19.62
10.43
3.08
KOhms
Trim up
1
2
3
4
5
6
7
8
9
10
%
Vout=
Vox1.01
Vox1.02
Vox1.03
Vox1.04
Vox1.05
Vox1.06
Vox1.07
Vox1.08
Vox1.09
Vox1.10
Volts
Ru=
487.14
218.02
128.31
83.46
56.55
38.61
25.79
16.18
8.70
2.72
KOhms
Order Code Table
Standard
With heatsink
MTQZ75-72S05
MTQZ75-72S05-HS
MTQZ75-72S12
MTQZ75-72S12-HS
MTQZ75-72S15
MTQZ75-72S15-HS
MTQZ75-72S24
MTQZ75-72S24-HS
MTQZ75-110S05
MTQZ75-110S05-HS
MTQZ75-110S12
MTQZ75-110S12-HS
MTQZ75-110S15
MTQZ75-110S15-HS
MTQZ75-110S24
MTQZ75-110S24-HS
MTQZ75 SERIES
DC-DC CONVERTE R 75W, Railway Certified
18, Sin Sin Road, An-Ping Industrial District, Tainan 702, Taiwan
Tel: 886-6-2923150 Fax: 886-6-2923149 E-mail: sales@minmax.com.tw 2019/06/13 REV:12 Page 8 of 8
Minmax Technology Co., Ltd.
®
Test Setup
Input Reflected-Ripple C urre nt Test Setup
Input reflected-r ipple curr ent is measured w ith a induc tor Lin (4.7μH) and Cin (220μF, ESR < 1.0Ω at 100 kHz) to s imulate source impe dance. Capacitor Cin, of fsets
possi ble bat t er y imped anc e. Current ripple is measured at the input term inals of the module, measurement bandwidth is 0-500 kHz.
Peak-to-Peak Outp ut Noise M eas ur em ent Test
Refer to the out put sp ecifications or add 4.7μF capacitor if the outp ut spec ifications un define Cout. Scope measurement sho uld b e m ade by using a BNC soc ket,
meas urement bandwidth is 0-20 MHz. Posi tion the loa d between 5 0 mm and 75 mm from the DC-DC Converter.
Technical Notes
Remote On/Off
Positive logic r emote on/ off turns the module on during a logic high voltage on the remot e on/off pin, and off dur ing a logic low. To turn t he power module on and off,
the user mus t sup ply a s witch to control the v oltage between the on/off terminal and the -Vi n terminal. The switch can be a n open collector or equivalent. A logic low is
0V to 1.2V. A logic high is 3.5V to 12V. The m aximum sink cur rent at th e on/off t ermi nal (Pin 2) during a logic low is -500μA.
Overload Protection
To provi d e hicc up mo d e protect ion in a fault (output overl oad) c ondition, the unit is equipped with internal current limiting circui try and can endure overload for an
unlimi t ed dur at ion.
Overv ol ta ge Pr otec t io n
The o utput overv oltage cl amp consists of contr ol circuitry, which is indepe ndent of the primary regul ation loop, that monitors the voltag e on the output termi nals .
The contr ol loop of the clamp has a higher vol tage set point than the prim ary loop. This provides a redundant voltage contr ol that reduces the risk of output
overvoltage. The OVP level can be found in the output data.
Output Ri pple R eduction
A good qual ity low ESR cap acitor placed as close as practicabl e acros s the load wi ll give the best ripple and noi se performance. To reduc e output ri pple, it is
recommended t o use 4.7μF c apacitors at the output.
Maximum Capaci tive Load
The MTQZ75 series h as limitation of maxi m um connect ed capacitance at th e outp ut. The power module may be oper ated in curr ent limiting mode during s tart -up,
affecting the ramp-up and the startup time. The maximum c apacitance can be found in the d ata sh eet.
Thermal Considerations
Many condi tions affect the thermal performance of the p ower module, suc h as or ient ation, airflow over the module and board spaci ng. To avoid excee din g th e
maximum temper ature rating of t he components ins ide the power module, the case temp erature must be kept b elow 105℃. The derati ng cur ves are determined f rom
meas urements obtained i n a test setup.
+Out
-Out
+Vin
-Vin
DC / DC
Converter Load
Battery
+Lin+
Cin
To Oscilloscope
Current
Probe
+Out
-Out
+Vin
-Vin
Single Output
DC / DC
Converter
Resistive
Load
Scope
Copper Strip
Cout
Copper Strip
+Out
-Out
+Vin
-Vin Load
DC Power
Source
+
-Cout
Single Output
DC / DC
Converter
DUT
Position of air velocity
probe and thermocouple 50mm / 2in Air Flow
15mm / 0.6i n
