MVTM36BT030M040B00 [VICOR]
DC DC CONVERTER MIL-COTS;型号: | MVTM36BT030M040B00 |
厂家: | VICOR CORPORATION |
描述: | DC DC CONVERTER MIL-COTS |
文件: | 总31页 (文件大小:3991K) |
中文: | 中文翻译 | 下载: | 下载PDF数据表文档文件 |
Se le ct De vice s a re En d o f Life
Re fe r t o p a g e 5
VTM™ Current Multiplier
MIL-COTS
MVTM36 Series
S
C
NRTL US
High Efficiency, Sine Amplitude Converter™ (SAC™)
Features
Product Ratings
• Family of MIL-COTs current multipliers
covering output voltages from 1 to 50 Vdc
VIN = 26.0 V to 50.0 V
POUT = up to 150 W
IOUT = up to 80 A
n Operating from MIL-COTs PRM® modules
VOUT = 1.0 V to 50.0 V
(various models)
• High efficiency reduces system power consumption
• High density provides isolated regulated system
and saves space
Product Description
• VI Chip® package enables surface mount or through hole,
low impedance interconnect to system board
The VI Chip® current multiplier is a high efficiency
Sine Amplitude Converter™ (SAC™) operating from a
26 to 50 Vdc primary bus to deliver an isolated output.
The Sine Amplitude Converter offers a low AC impedance
beyond the bandwidth of most downstream regulators, which
means that capacitance normally at the load can be located
at the input to the Sine Amplitude Converter. This allows for a
reduction in point of load capacitance of typically >100x which
results in a saving of board area, materials and
• Contains built-in protection features against:
n Overvoltage
n Overcurrent
n Short Circuit
n Overtemperature
• ZVS/ZCS resonant Sine Amplitude Converter topology
• Less than 50ºC temperature rise at full load
in typical applications
total system cost.
The VTM current multiplier is provided in a VI Chip package
compatible with standard pick-and-place and surface mount
assembly processes. The co-molded VI Chip package provides
enhanced thermal management due to large thermal interface
area and superior thermal conductivity. With high conversion
efficiency the VTM current multiplier increases overall system
efficiency and lowers operating costs compared to
Typical Applications
• Land/Air/Sea Unmanned Vehicles/Drones
• Scanning Equipment
• Radar
conventional approaches.
• Mobile Weapons
• Hybrid Vehicles
The VTM current multiplier enables the utilization of
Factorized Power Architecture providing efficiency and size
benefits by lowering conversion and distribution losses and
promoting high density point of load conversion.
VTM™ Current Multiplier
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MVTM36 Series
Typical Application
PRM AL
RSC
SC
OS
VH
TM
VC
CSC
ROS
VTM
VOUT
VTM Start Up Pulse and Temperature Feedback
CD
IL
VC
TM
PC
+OUT
RCD
0.01µF
PC
PR
RVC
10K
RDF
SGND
VIN
+IN
–IN
+OUT
–OUT
+IN
–IN
16 V to 50 V
LF
F1
1
CIN
VF: 26 V to 50 V
CF
1
–OUT
SGND
SGND 1
GND
PRIMARY
SECONDARY
SEC_GND
ISOLATION BOUNDRY
Using the MIL-COTs PRM, the output of the VTM is regulated over the load current range with only a single interconnect
between the PRM and VTM and without the need for isolation in the feedback path.
VTM™ Current Multiplier
Rev 1.4
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MVTM36 Series
Pin Configuration (Full)
TOP VIEW
3
4
1
2
A’
B’
+OUT
A
+IN
-OUT
TM
VC
PC
B
C
D
C’
+OUT
-IN
E
D’
-OUT
Full VIC SMD
Pin Description (Full)
Pin Number
A1, A2
Signal Name
Type
INPUT POWER Positive Input Power Terminal
Function
+IN
TM
VC
PC
B1, B2
OUTPUT
INPUT
BIDIR
Provides voltage proportional to internal VTM controller temperature. “Power Good” flag.
Connect to 12 V source to power internal VTM control circuits.
C1, C2
D1, D2
Enables power supply when allowed to float high. 5 V during normal operation.
INPUT POWER
RETURN
E1, E2
-IN
Negative Input Power Terminal
A’3, A’4, C’3, C’4
B’3, B’4, D’3, D’4
+OUT
-OUT
OUTPUT POWER Positive Output Power Terminal
OUTPUT POWER
Positive Output Power Terminal
RETURN
VTM™ Current Multiplier
Rev 1.4
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MVTM36 Series
Pin Configuration (Half)
TOP VIEW
3
4
1
2
A
B
+IN
A’
+OUT
E
IM
C TM
E PC
VC D
B’
-OUT
-IN
F
Half VIC
Pin Description (Half)
Pin Number
Signal Name
Type
INPUT POWER Positive Input Power Terminal
Function
A1, A2
B1
+IN
IM
OUTPUT
OUTPUT
INPUT
Provides voltage proportional to load current.
C2
TM
VC
PC
Provides voltage proportional to internal VTM controller temperature. “Power Good” flag.
Connect to 12 V source to power internal VTM control circuits.
D1
E2
BIDIR
Enables power supply when allowed to float high. 5 V during normal operation.
INPUT POWER
RETURN
F1, F2
A’3, A’4
B’3, B’4
-IN
Negative Input Power Terminal
+OUT
-OUT
OUTPUT POWER Positive Output Power Terminal
OUTPUT POWER
Positive Output Power Terminal
RETURN
VTM™ Current Multiplier
Rev 1.4
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MVTM36 Series
Part Ordering Information
Input Voltage
Output Voltage
x 10
Temperature
Output
Current
Device
Range
Package Type
Revision
Version
Grade
VTM
36B
F
015
M
080
A
00
F = Full VIC SMD
T = Full VIC Through Hole
H = Half VIC SMD
VTM = VTM
36B = 26.0 to 50.0 V
015 = 1.5 V
M = -55 to 125°C
080 = 80 A
A
00 = Standard
All products shipped in JEDEC standard high profile (0.400” thick) trays (JEDEC Publication 95, Design Guide 4.10).
Standard Models
Part Number
Package Size
Status
VIN
K
VOUT
Temperature
Current
MVTM36BF015M080A00
MVTM36BT015M080A00
MVTM36BF022M055A00
MVTM36BT022M055A00
MVTM36BF030M040B00
MVTM36BT030M040B00
MVTM36BF045M027A00
MVTM36BT045M027A00
MVTM36BF060M020A00
MVTM36BT060M020A00
MVTM36BF072M017A00
MVTM36BT072M017A00
MVTM36BF090M013A00
MVTM36BT090M013A00
MVTM36BF120M010A00
MVTM36BT120M010A00
MVTM36BF180M007A00
MVTM36BT180M007A00
MVTM36BF240M005A00
MVTM36BT240M005A00
MVTM36BF360M003A00
MVTM36BT360M003A00
MVTM36BH030M025A00
MVTM36BH045M020A00
MVTM36BH090M010A00
Full VIC SMD
Full VIC TH
Active
26.0 V to 50.0 V
1/24
1.50 V (1.08 V to 2.08 V)
-55 to 125°C
80 A
Full VIC SMD
Full VIC TH
26.0 V to 50.0 V
26.0 V to 50.0 V
26.0 V to 50.0 V
26.0 V to 50.0 V
26.0 V to 50.0 V
26.0 V to 50.0 V
26.0 V to 50.0 V
26.0 V to 50.0 V
26.0 V to 50.0 V
26.0 V to 50.0 V
1/16
1/12
1/8
1/6
1/5
1/4
1/3
1/2
2/3
1
2.25 V (1.63 V to 3.13 V)
3.00 V (2.17 V to 4.17 V)
4.50 V (3.25 V to 6.25 V)
6.00 V (4.33 V to 8.33 V)
7.20 V (5.20 V to 10.0 V)
9.00 V (6.50 V to 12.5 V)
12.0 V (8.67 V to 16.7 V)
18.0 V (13.0 V to 25.0 V)
24.0 V (17.3 V to 33.3 V)
36.0 V (26.0 V to 50.0 V)
-55 to 125°C
-55 to 125°C
-55 to 125°C
-55 to 125°C
-55 to 125°C
-55 to 125°C
-55 to 125°C
-55 to 125°C
-55 to 125°C
-55 to 125°C
55 A
40 A
27 A
20 A
17 A
13 A
10 A
7 A
End of Life
Active
Full VIC SMD
Full VIC TH
Full VIC SMD
Full VIC TH
Active
Full VIC SMD
Full VIC TH
Active
Full VIC SMD
Full VIC TH
Active
Full VIC SMD
Full VIC TH
Active
Full VIC SMD
Full VIC TH
Active
Full VIC SMD
Full VIC TH
Active
Active
Active
Full VIC SMD
Full VIC TH
5 A
Full VIC SMD
Full VIC TH
3 A
Half VIC SMD
Half VIC SMD
Half VIC SMD
26.0 V to 50.0 V
26.0 V to 50.0 V
26.0 V to 50.0 V
1/12
1/8
3.00 V (1.63 V to 3.13 V)
4.50 V (3.25 V to 6.25 V)
9.00 V (6.50 V to 12.5 V)
-55 to 125°C
-55 to 125°C
-55 to 125°C
25 A
20 A
10 A
Active
Active
Active
1/4
VTM™ Current Multiplier
Rev 1.4
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MVTM36 Series
Absolute Maximum Ratings
The absolute maximum ratings below are stress ratings only. Operation at or beyond these maximum ratings can cause permanent damage to the device.
Parameter
Comments
Min
Max
Unit
+IN to -IN
-1.0
60
VDC
PC to -IN
TM to -IN
-0.3
-0.3
20
7
VDC
VDC
VC to -IN
-0.3
0
20
VDC
VDC
VDC
IM to -IN
Half Chip only
3.15
2250
+IN / -IN to +OUT / -OUT (hipot)
General Electrical Characteristics
Specifications apply over all line and load conditions, unless otherwise noted; Boldface specifications apply over the temperature range of
-55°C < TJ < 125°C (T-Grade); All other specifications are at TJ = 25ºC unless otherwise noted.
Attribute
Symbol
Conditions / Notes
No external VC applied
Min
26
0
Typ
Max
50
50
1
Unit
Input voltage range
VIN
VDC
VC applied
VIN slew rate
dVIN/dt
VOUT_PP
V/µs
Output voltage ripple
COUT = 0 F, IOUT = Full Load, VIN = 48 V, 20 MHz BW
Protection
5
% VOUT
Overvoltage lockout
VIN_OVLO+
tOVLO
IOCP
ISCP
Module latched shutdown
52.0
56.0
8
58.5
V
Overvoltage lockout
Effective internal RC filter
µs
response time constant
Output overcurent trip
120
150
% IOUT_AVG
% IOUT_AVG
Short circuit protection trip current
Output overcurrent
tOCP
Effective internal RC filter (Integrative)
3.8
ms
response time constant
From detection to cessation of switching
(Instantaneous)
Short cicuit protection response time
tSCP
1
µs
Thermal shutdown setpoint
TJ_OTP
125
130
135
°C
Reverse inrush current protection
Reverse Inrush protection disabled for this product
VTM™ Current Multiplier
Rev 1.4
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MVTM36 Series
Model Specific Electrical Characteristics
Specifications apply over all line and load conditions, unless otherwise noted; Boldface specifications apply over the temperature range of
-55°C < TJ < 125°C (T-Grade); All other specifications are at TJ = 25ºC unless otherwise noted.
Attribute
Symbol
Conditions / Notes
Min
Typ
1/24
91.3
Max
7.5
Unit
MVTM36BF015M080A00
No load power dissipation
Transfer ratio
PNL
K
VIN = 26 V to 50 V
W
V/V
V
K = VOUT / VIN, IOUT = 0 A
VOUT = VIN • K - IOUT • ROUT
Ouput voltage
VOUT
Output current (average)
Output current (peak)
IOUT_AVG
IOUT_PK
80
A
tPEAK < 10 ms, IOUT_AVG ≤ 80 A
VIN = 36 V, IOUT = 80 A
120
A
90.0
87.3
0.40
0.55
0.65
1.50
3.00
hAMB
Efficiency (ambient)
%
VIN = 26 V to 50 V, IOUT = 80 A
TC = -40°C, IOUT = 80 A
TC = 25°C, IOUT = 80 A
Output resistance (cold)
Output resistance (ambient)
Output resistance (hot)
Switching frequency
ROUT_COLD
ROUT_AMB
ROUT_HOT
fSW
0.76
0.98
1.18
1.60
3.20
1.0
1.4
mΩ
mΩ
TC = 100°C, IOUT = 80 A
1.5
mΩ
1.70
3.40
MHz
MHz
Output ripple frequency
fSW_RP
MIL-HDBK-217 Plus Parts Count; 25°C Ground Benign,
Stationary, Indoors / Computer Profile
5.0
MHrs
MTBF
Telcordia Issue 2 - Method 1 Case 1;
Ground Benign, Controlled
6.7
2
MHrs
VC internal resistor
MVTM36BF022M055A00
No load power dissipation
Transfer ratio
RVC-INT
kΩ
PNL
K
VIN = 26 V to 50 V
8.6
W
V/V
V
K = VOUT / VIN, IOUT = 0 A
VOUT = VIN • K - IOUT • ROUT
1/16
93.7
Ouput voltage
VOUT
Output current (average)
Output current (peak)
IOUT_AVG
IOUT_PK
55
82
A
tPEAK < 10 ms, IOUT_AVG ≤ 55 A
VIN = 36 V, IOUT = 55 A
A
92.6
88.8
0.6
hAMB
Efficiency (ambient)
%
VIN = 26 V to 50 V, IOUT = 55 A
TC = -40°C, IOUT = 55 A
TC = 25°C, IOUT = 55 A
Output resistance (cold)
Output resistance (ambient)
Output resistance (hot)
Switching frequency
ROUT_COLD
ROUT_AMB
ROUT_HOT
fSW
1.1
1.4
1.8
1.9
mΩ
mΩ
0.8
TC = 100°C, IOUT = 55 A
1.0
1.7
2.2
mΩ
1.36
2.72
1.43
2.86
1.50
3.00
MHz
MHz
Output ripple frequency
fSW_RP
MIL-HDBK-217 Plus Parts Count; 25°C Ground Benign,
Stationary, Indoors / Computer Profile
1.9
MHrs
MTBF
Telcordia Issue 2 - Method 1 Case 1;
Ground Benign, Controlled
6.0
1.0
MHrs
VC internal resistor
RVC-INT
kΩ
VTM™ Current Multiplier
Rev 1.4
Page 7 of 31
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MVTM36 Series
Model Specific Electrical Characteristics (Cont.)
Specifications apply over all line and load conditions, unless otherwise noted; Boldface specifications apply over the temperature range of
-55°C < TJ < 125°C (T-Grade); All other specifications are at TJ = 25ºC unless otherwise noted.
Attribute
Symbol
Conditions / Notes
Min
Typ
1/12
94.0
Max
12.0
Unit
MVTM36BF030M040B00
No load power dissipation
Transfer ratio
PNL
K
VIN = 26 V to 50 V
W
V/V
V
K = VOUT / VIN, IOUT = 0 A
VOUT = VIN • K - IOUT • ROUT
Ouput voltage
VOUT
Output current (average)
Output current (peak)
IOUT_AVG
IOUT_PK
40
60
A
tPEAK < 10 ms, IOUT_AVG ≤ 40 A
VIN = 36 V, IOUT = 40 A
A
92.5
90.2
1.0
hAMB
Efficiency (ambient)
%
VIN = 26 V to 50 V, IOUT = 40 A
TC = -40°C, IOUT = 40 A
TC = 25°C, IOUT = 40 A
Output resistance (cold)
Output resistance (ambient)
Output resistance (hot)
Switching frequency
ROUT_COLD
ROUT_AMB
ROUT_HOT
fSW
1.6
2.2
2.3
3.0
mΩ
mΩ
1.5
TC = 100°C, IOUT = 40 A
2.0
2.6
3.3
mΩ
1.36
2.72
1.43
2.86
1.50
3.00
MHz
MHz
Output ripple frequency
fSW_RP
MIL-HDBK-217 Plus Parts Count; 25°C Ground Benign,
Stationary, Indoors / Computer Profile
3.8
MHrs
MTBF
Telcordia Issue 2 - Method 1 Case 1;
Ground Benign, Controlled
9.5
1.0
MHrs
VC internal resistor
MVTM36BF045M027A00
No load power dissipation
Transfer ratio
RVC-INT
kΩ
PNL
K
VIN = 26 V to 50 V
7.0
W
V/V
V
K = VOUT / VIN, IOUT = 0 A
VOUT = VIN • K - IOUT • ROUT
1/8
Ouput voltage
VOUT
Output current (average)
Output current (peak)
IOUT_AVG
IOUT_PK
27
40
A
tPEAK < 10 ms, IOUT_AVG ≤ 27 A
VIN = 36 V, IOUT = 27 A
A
93.0
89.3
2.5
94.7
hAMB
Efficiency (ambient)
%
VIN = 26 V to 55 V, IOUT = 27 A
TC = -40°C, IOUT = 27 A
TC = 25°C, IOUT = 27 A
Output resistance (cold)
Output resistance (ambient)
Output resistance (hot)
Switching frequency
ROUT_COLD
ROUT_AMB
ROUT_HOT
fSW
4.6
6.0
5.9
7.8
mΩ
mΩ
3.8
TC = 100°C, IOUT = 27 A
4.5
7.1
9.0
mΩ
1.10
2.20
1.21
2.42
1.30
2.60
MHz
MHz
Output ripple frequency
fSW_RP
MIL-HDBK-217 Plus Parts Count; 25°C Ground Benign,
Stationary, Indoors / Computer Profile
3.8
MHrs
MTBF
Telcordia Issue 2 - Method 1 Case 1;
Ground Benign, Controlled
9.5
1.0
MHrs
VC internal resistor
RVC-INT
kΩ
VTM™ Current Multiplier
Rev 1.4
Page 8 of 31
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MVTM36 Series
Model Specific Electrical Characteristics (Cont.)
Specifications apply over all line and load conditions, unless otherwise noted; Boldface specifications apply over the temperature range of
-55°C < TJ < 125°C (T-Grade); All other specifications are at TJ = 25ºC unless otherwise noted.
Attribute
Symbol
Conditions / Notes
Min
Typ
1/6
Max
14.0
Unit
MVTM36BF060M020A00
No load power dissipation
Transfer ratio
PNL
K
VIN = 26 V to 50 V
W
V/V
V
K = VOUT / VIN, IOUT = 0 A
VOUT = VIN • K - IOUT • ROUT
Ouput voltage
VOUT
Output current (average)
Output current (peak)
IOUT_AVG
IOUT_PK
20
30
A
tPEAK < 10 ms, IOUT_AVG ≤ 20 A
VIN = 36 V, IOUT = 20 A
A
94.6
92.0
3.0
95.5
hAMB
Efficiency (ambient)
%
VIN = 26 V to 50 V, IOUT = 20 A
TC = -40°C, IOUT = 20 A
TC = 25°C, IOUT = 20 A
Output resistance (cold)
Output resistance (ambient)
Output resistance (hot)
Switching frequency
ROUT_COLD
ROUT_AMB
ROUT_HOT
fSW
7.0
8.0
9.0
mΩ
mΩ
5.0
10.0
15.0
1.57
3.14
TC = 100°C, IOUT = 20 A
6.0
12.0
1.52
3.04
mΩ
1.47
7.94
MHz
MHz
Output ripple frequency
fSW_RP
MIL-HDBK-217 Plus Parts Count; 25°C Ground Benign,
Stationary, Indoors / Computer Profile
4.3
MHrs
MTBF
Telcordia Issue 2 - Method 1 Case 1;
Ground Benign, Controlled
9.5
MHrs
VC internal resistor
MVTM36BF072M017A00
No load power dissipation
Transfer ratio
RVC-INT
0.56
kΩ
PNL
K
VIN = 26 V to 50 V
14.0
W
V/V
V
K = VOUT / VIN, IOUT = 0 A
VOUT = VIN • K - IOUT • ROUT
1/5
Ouput voltage
VOUT
Output current (average)
Output current (peak)
IOUT_AVG
IOUT_PK
17
25
A
tPEAK < 10 ms, IOUT_AVG ≤ 17 A
VIN = 36 V, IOUT = 17 A
A
95.3
92.0
3.3
95.9
hAMB
Efficiency (ambient)
%
VIN = 26 V to 55 V, IOUT = 17 A
TC = -40°C, IOUT = 17 A
TC = 25°C, IOUT = 17 A
Output resistance (cold)
Output resistance (ambient)
Output resistance (hot)
Switching frequency
ROUT_COLD
ROUT_AMB
ROUT_HOT
fSW
5.6
7.8
7.8
mΩ
mΩ
5.0
10.0
12.0
1.60
3.20
TC = 100°C, IOUT = 17 A
7.0
9.1
mΩ
1.50
3.00
1.55
3.10
MHz
MHz
Output ripple frequency
fSW_RP
MIL-HDBK-217 Plus Parts Count; 25°C Ground Benign,
Stationary, Indoors / Computer Profile
3.5
MHrs
MTBF
Telcordia Issue 2 - Method 1 Case 1;
Ground Benign, Controlled
5.5
MHrs
VC internal resistor
RVC-INT
0.56
kΩ
VTM™ Current Multiplier
Rev 1.4
Page 9 of 31
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Re fe r t o p a g e 5
MVTM36 Series
Model Specific Electrical Characteristics (Cont.)
Specifications apply over all line and load conditions, unless otherwise noted; Boldface specifications apply over the temperature range of
-55°C < TJ < 125°C (T-Grade); All other specifications are at TJ = 25ºC unless otherwise noted.
Attribute
Symbol
Conditions / Notes
Min
Typ
1/4
Max
14.0
Unit
MVTM36BF090M013A00
No load power dissipation
Transfer ratio
PNL
K
VIN = 26 V to 50 V
W
V/V
V
K = VOUT / VIN, IOUT = 0 A
VOUT = VIN • K - IOUT • ROUT
Ouput voltage
VOUT
Output current (average)
Output current (peak)
IOUT_AVG
IOUT_PK
13
19
A
tPEAK < 10 ms, IOUT_AVG ≤ 13 A
VIN = 36 V, IOUT = 13 A
A
93.8
93.5
2.0
95.3
hAMB
Efficiency (ambient)
%
VIN = 26 V to 50 V, IOUT = 13 A
TC = -40°C, IOUT = 13 A
TC = 25°C, IOUT = 13 A
Output resistance (cold)
Output resistance (ambient)
Output resistance (hot)
Switching frequency
ROUT_COLD
ROUT_AMB
ROUT_HOT
fSW
5.5
8.9
9.5
mΩ
mΩ
3.9
13.4
15.9
2.05
4.10
TC = 100°C, IOUT = 13 A
5.0
10.6
1.95
3.90
mΩ
1.85
3.70
MHz
MHz
Output ripple frequency
fSW_RP
MIL-HDBK-217 Plus Parts Count; 25°C Ground Benign,
Stationary, Indoors / Computer Profile
1.8
MHrs
MTBF
Telcordia Issue 2 - Method 1 Case 1;
Ground Benign, Controlled
7.3
MHrs
VC internal resistor
MVTM36BF120M010A00
No load power dissipation
Transfer ratio
RVC-INT
0.51
kΩ
PNL
K
VIN = 26 V to 50 V
10.5
W
V/V
V
K = VOUT / VIN, IOUT = 0 A
VOUT = VIN • K - IOUT • ROUT
1/3
Ouput voltage
VOUT
Output current (average)
Output current (peak)
IOUT_AVG
IOUT_PK
10
15
A
tPEAK < 10 ms, IOUT_AVG ≤ 10 A
VIN = 36 V, IOUT = 10 A
A
94.2
90.0
12.8
20.4
23.1
1.56
3.12
94.9
hAMB
Efficiency (ambient)
%
VIN = 26 V to 50 V, IOUT = 10 A
TC = -40°C, IOUT = 10 A
TC = 25°C, IOUT = 10 A
Output resistance (cold)
Output resistance (ambient)
Output resistance (hot)
Switching frequency
ROUT_COLD
ROUT_AMB
ROUT_HOT
fSW
19.7
26.5
29.2
1.65
3.30
26.5
32.6
35.2
1.74
3.48
mΩ
mΩ
TC = 100°C, IOUT = 10 A
mΩ
MHz
MHz
Output ripple frequency
fSW_RP
MIL-HDBK-217 Plus Parts Count; 25°C Ground Benign,
Stationary, Indoors / Computer Profile
3.8
MHrs
MTBF
Telcordia Issue 2 - Method 1 Case 1;
Ground Benign, Controlled
5.6
2.0
MHrs
VC internal resistor
RVC-INT
kΩ
VTM™ Current Multiplier
Rev 1.4
Page 10 of 31
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Se le ct De vice s a re En d o f Life
Re fe r t o p a g e 5
MVTM36 Series
Model Specific Electrical Characteristics (Cont.)
Specifications apply over all line and load conditions, unless otherwise noted; Boldface specifications apply over the temperature range of
-55°C < TJ < 125°C (T-Grade); All other specifications are at TJ = 25ºC unless otherwise noted.
Attribute
Symbol
Conditions / Notes
Min
Typ
1/2
Max
13.5
Unit
MVTM36BF180M007A00
No load power dissipation
Transfer ratio
PNL
K
VIN = 26 V to 50 V
W
V/V
V
K = VOUT / VIN, IOUT = 0 A
VOUT = VIN • K - IOUT • ROUT
Ouput voltage
VOUT
Output current (average)
Output current (peak)
IOUT_AVG
IOUT_PK
7
A
tPEAK < 10 ms, IOUT_AVG ≤ 7 A
VIN = 36 V, IOUT = 7 A
10
A
93.0
92.0
19.7
30.0
35.0
1.68
3.36
94.0
hAMB
Efficiency (ambient)
%
VIN = 26 V to 50 V, IOUT = 7 A
TC = -40°C, IOUT = 7 A
TC = 25°C, IOUT = 7 A
Output resistance (cold)
Output resistance (ambient)
Output resistance (hot)
Switching frequency
ROUT_COLD
ROUT_AMB
ROUT_HOT
fSW
40.0
55.0
60.0
1.77
3.54
60.7
75.0
90.0
1.86
3.72
mΩ
mΩ
TC = 100°C, IOUT = 7 A
mΩ
MHz
MHz
Output ripple frequency
fSW_RP
MIL-HDBK-217 Plus Parts Count; 25°C Ground Benign,
Stationary, Indoors / Computer Profile
3.8
MHrs
MTBF
Telcordia Issue 2 - Method 1 Case 1;
Ground Benign, Controlled
5.7
MHrs
VC internal resistor
MVTM36BF240M005A00
No load power dissipation
Transfer ratio
RVC-INT
0.51
kΩ
PNL
K
VIN = 26 V to 50 V
8.5
W
V/V
V
K = VOUT / VIN, IOUT = 0 A
VOUT = VIN • K - IOUT • ROUT
2/3
Ouput voltage
VOUT
Output current (average)
Output current (peak)
IOUT_AVG
IOUT_PK
5
A
tPEAK < 10 ms, IOUT_AVG ≤ 5 A
VIN = 36 V, IOUT = 5 A
7.5
A
93.5
93.0
40.0
64.0
85.0
1.57
3.14
96.0
hAMB
Efficiency (ambient)
%
VIN = 26 V to 50 V, IOUT = 5 A
TC = -40°C, IOUT = 5 A
TC = 25°C, IOUT = 5 A
Output resistance (cold)
Output resistance (ambient)
Output resistance (hot)
Switching frequency
ROUT_COLD
ROUT_AMB
ROUT_HOT
fSW
51.4
86.0
102.0
1.60
3.20
70.0
120.0
135
mΩ
mΩ
TC = 100°C, IOUT = 5 A
mΩ
1.63
3.26
MHz
MHz
Output ripple frequency
fSW_RP
MIL-HDBK-217 Plus Parts Count; 25°C Ground Benign,
Stationary, Indoors / Computer Profile
3.8
MHrs
MTBF
Telcordia Issue 2 - Method 1 Case 1;
Ground Benign, Controlled
5.6
2.0
MHrs
VC internal resistor
RVC-INT
kΩ
VTM™ Current Multiplier
Rev 1.4
Page 11 of 31
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Se le ct De vice s a re En d o f Life
Re fe r t o p a g e 5
MVTM36 Series
Model Specific Electrical Characteristics (Cont.)
Specifications apply over all line and load conditions, unless otherwise noted; Boldface specifications apply over the temperature range of
-55°C < TJ < 125°C (T-Grade); All other specifications are at TJ = 25ºC unless otherwise noted.
Attribute
Symbol
Conditions / Notes
Min
Typ
Max
9.0
Unit
MVTM36BF360M003A00
No load power dissipation
Transfer ratio
PNL
K
VIN = 26 V to 50 V
W
V/V
V
K = VOUT / VIN, IOUT = 0 A
VOUT = VIN • K - IOUT • ROUT
1
Ouput voltage
VOUT
Output current (average)
Output current (peak)
IOUT_AVG
IOUT_PK
3
A
tPEAK < 10 ms, IOUT_AVG ≤ 3 A
VIN = 36 V, IOUT = 3 A
4.5
A
95.3
93.3
96.0
hAMB
Efficiency (ambient)
%
VIN = 26 V to 50 V, IOUT = 3 A
TC = -40°C, IOUT = 3 A
TC = 25°C, IOUT = 3 A
Output resistance (cold)
Output resistance (ambient)
Output resistance (hot)
Switching frequency
ROUT_COLD
ROUT_AMB
ROUT_HOT
fSW
55.0
108.0
140.0
190.0
1.67
175.0
168.0
228.0
1.70
mΩ
mΩ
112.0
152.0
1.64
TC = 100°C, IOUT = 3 A
mΩ
MHz
MHz
Output ripple frequency
fSW_RP
3.28
3.34
3.40
MIL-HDBK-217 Plus Parts Count; 25°C Ground Benign,
Stationary, Indoors / Computer Profile
3.8
MHrs
MTBF
Telcordia Issue 2 - Method 1 Case 1;
Ground Benign, Controlled
5.6
2.0
MHrs
VC internal resistor
RVC-INT
kΩ
VTM™ Current Multiplier
Rev 1.4
Page 12 of 31
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Re fe r t o p a g e 5
MVTM36 Series
Model Specific Electrical Characteristics (Cont.)
Specifications apply over all line and load conditions, unless otherwise noted; Boldface specifications apply over the temperature range of
-55°C < TJ < 125°C (T-Grade); All other specifications are at TJ = 25ºC unless otherwise noted.
Attribute
Symbol
Conditions / Notes
Min
Typ
1/12
90.8
Max
5.0
Unit
MVTM36BH030M025A00
No load power dissipation
Transfer ratio
PNL
K
VIN = 26 V to 50 V
W
V/V
V
K = VOUT / VIN, IOUT = 0 A
VOUT = VIN • K - IOUT • ROUT
Ouput voltage
VOUT
Output current (average)
Output current (peak)
IOUT_AVG
IOUT_PK
25.0
37.5
A
tPEAK < 10 ms, IOUT_AVG ≤ 25 A
VIN = 36 V, IOUT = 25 A
A
88.5
85.5
2.0
hAMB
Efficiency (ambient)
%
VIN = 26 V to 50 V, IOUT = 25 A
TC = -40°C, IOUT = 25 A
TC = 25°C, IOUT = 25 A
Output resistance (cold)
Output resistance (ambient)
Output resistance (hot)
Switching frequency
ROUT_COLD
ROUT_AMB
ROUT_HOT
fSW
5.3
7.3
8.5
mΩ
mΩ
4.5
10.0
12.0
1.80
3.60
TC = 100°C, IOUT = 25 A
5.0
8.0
mΩ
1.50
3.00
1.65
3.30
MHz
MHz
Output ripple frequency
fSW_RP
MIL-HDBK-217 Plus Parts Count; 25°C Ground Benign,
Stationary, Indoors / Computer Profile
MTBF
4.5
MHrs
VC internal resistor
RVC-INT
8.87
kΩ
Current Monitor: IM
• The IM pin provides a DC analog voltage proportional to the output current of the VTM.
SIGNAL TYPE
STATE
ATTRIBUTE
IM voltage (no load)
IM voltage (50%)
IM voltage (full load)
IM gain
SYMBOL CONDITIONS / NOTES
MIN
TYP
MAX UNIT
VIM_NL
VIM_50%
VIM_FL
AIM
TC = 25ºC, VIN = 42 V, IOUT = 0 A
TC = 25ºC, VIN = 42 V, IOUT = 12.5 A
TC = 25ºC, VIN = 42 V, IOUT = 25 A
TC = 25ºC, VIN = 42 V, IOUT > 12.5 A
0.30
0.32
0.94
1.80
69
0.38
V
V
ANALOG
INPUT
Steady
V
mV/A
MΩ
IM resistance (external)
RIM_EXT
2.5
VTM™ Current Multiplier
Rev 1.4
Page 13 of 31
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Re fe r t o p a g e 5
MVTM36 Series
Model Specific Electrical Characteristics (Cont.)
Specifications apply over all line and load conditions, unless otherwise noted; Boldface specifications apply over the temperature range of
-55°C < TJ < 125°C (T-Grade); All other specifications are at TJ = 25ºC unless otherwise noted.
Attribute
Symbol
Conditions / Notes
Min
Typ
1/8
Max
5.6
Unit
MVTM36BH045M020A00
No load power dissipation
Transfer ratio
PNL
K
VIN = 26 V to 50 V
W
V/V
V
K = VOUT / VIN, IOUT = 0 A
VOUT = VIN • K - IOUT • ROUT
Ouput voltage
VOUT
Output current (average)
Output current (peak)
IOUT_AVG
IOUT_PK
20
30
A
tPEAK < 10 ms, IOUT_AVG ≤ 20 A
VIN = 48 V, IOUT = 20 A
A
91.0
89.5
5.0
92.9
hAMB
Efficiency (ambient)
%
VIN = 26 V to 55 V, IOUT = 20 A
TC = -40°C, IOUT = 20 A
TC = 25°C, IOUT = 20 A
Output resistance (cold)
Output resistance (ambient)
Output resistance (hot)
Switching frequency
ROUT_COLD
ROUT_AMB
ROUT_HOT
fSW
8.2
13.0
15.0
18.0
1.63
3.26
mΩ
mΩ
7.0
10.8
13.2
1.50
3.00
TC = 100°C, IOUT = 20 A
9.0
mΩ
1.37
2.74
MHz
MHz
Output ripple frequency
fSW_RP
MIL-HDBK-217 Plus Parts Count; 25°C Ground Benign,
Stationary, Indoors / Computer Profile
MTBF
6.0
MHrs
VC internal resistor
RVC-INT
4.64
kΩ
Current Monitor: IM
• The IM pin provides a DC analog voltage proportional to the output current of the VTM.
SIGNAL TYPE
STATE
ATTRIBUTE
IM voltage (no load)
IM voltage (50%)
IM voltage (full load)
IM gain
SYMBOL CONDITIONS / NOTES
MIN
TYP
MAX UNIT
VIM_NL
VIM_50%
VIM_FL
AIM
TC = 25ºC, VIN = 48 V, IOUT = 0 A
TC = 25ºC, VIN = 48 V, IOUT = 10 A
TC = 25ºC, VIN = 48 V, IOUT = 20 A
TC = 25ºC, VIN = 48 V, IOUT > 10 A
0.27
0.33
1.0
0.37
V
V
ANALOG
INPUT
Steady
1.91
91
V
mV/A
MΩ
IM resistance (external)
RIM_EXT
2.5
VTM™ Current Multiplier
Rev 1.4
Page 14 of 31
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Se le ct De vice s a re En d o f Life
Re fe r t o p a g e 5
MVTM36 Series
Model Specific Electrical Characteristics (Cont.)
Specifications apply over all line and load conditions, unless otherwise noted; Boldface specifications apply over the temperature range of
-55°C < TJ < 125°C (T-Grade); All other specifications are at TJ = 25ºC unless otherwise noted.
Attribute
Symbol
Conditions / Notes
Min
Typ
1/4
Max
5.2
Unit
MVTM36BH090M010A00
No load power dissipation
Transfer ratio
PNL
K
VIN = 26 V to 50 V
W
V/V
V
K = VOUT / VIN, IOUT = 0 A
VOUT = VIN • K - IOUT • ROUT
Ouput voltage
VOUT
Output current (average)
Output current (peak)
IOUT_AVG
IOUT_PK
10
15
A
tPEAK < 10 ms, IOUT_AVG ≤ 10 A
VIN = 36 V, IOUT = 10 A
A
92.0
90.0
20.0
28.0
35.0
1.60
3.20
93.6
hAMB
Efficiency (ambient)
%
VIN = 26 V to 50 V, IOUT = 10 A
TC = -40°C, IOUT = 10 A
TC = 25°C, IOUT = 10 A
Output resistance (cold)
Output resistance (ambient)
Output resistance (hot)
Switching frequency
ROUT_COLD
ROUT_AMB
ROUT_HOT
fSW
27.0
36.2
44.4
1.75
3.50
35.0
45.0
55.0
1.90
3.80
mΩ
mΩ
TC = 100°C, IOUT = 10 A
mΩ
MHz
MHz
Output ripple frequency
fSW_RP
MIL-HDBK-217 Plus Parts Count; 25°C Ground Benign,
Stationary, Indoors / Computer Profile
MTBF
4.5
MHrs
VC internal resistor
RVC-INT
2.05
kΩ
Current Monitor: IM
• The IM pin provides a DC analog voltage proportional to the output current of the VTM.
SIGNAL TYPE
STATE
ATTRIBUTE
IM voltage (no load)
IM voltage (50%)
IM voltage (full load)
IM gain
SYMBOL CONDITIONS / NOTES
MIN
TYP
MAX UNIT
VIM_NL
VIM_50%
VIM_FL
AIM
TC = 25ºC, VIN = 48 V, IOUT = 0 A
TC = 25ºC, VIN = 48 V, IOUT = 5 A
TC = 25ºC, VIN = 48 V, IOUT = 10 A
TC = 25ºC, VIN = 48 V, IOUT > 5 A
0.28
0.35
0.90
1.68
156
0.42
V
V
ANALOG
INPUT
Steady
V
mV/A
MΩ
IM resistance (external)
RIM_EXT
2.5
VTM™ Current Multiplier
Rev 1.4
Page 15 of 31
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Re fe r t o p a g e 5
MVTM36 Series
Signal Characteristics
Specifications apply over all line and load conditions, unless otherwise noted; Boldface specifications apply over the temperature range of
-55°C < TJ < 125°C (T-Grade); All other specifications are at TJ = 25ºC unless otherwise noted.
VTM Control: VC
• Used to wake up powertrain circuit.
• A minimum of 12 V must be applied indefinitely for VIN ≤ 26 V to ensure normal operation.
• VC slew rate must be within range for a successful start.
• PRM® VC can be used as valid wake-up signal source.
• VC voltage may be continuously applied; there will be minimal VC current drawn when VIN ≥ 26 V and VC ≤ 13.
• Internal resistance used in adaptive loop compensation
SIGNAL TYPE
STATE
ATTRIBUTE
External VC voltage
SYMBOL CONDITIONS / NOTES
Required for startup, and operation
MIN
12
TYP
MAX UNIT
VVC_EXT
16.5
V
V
below 26 V.
VC current draw threshold
VVC_TH
Low VC current draw for Vin >26 V
VC = 13 V, VIN = 0 V
13
Steady
150
VC current draw
IVC
VC = 13 V, VIN > 26 V
0
0
mA
ANALOG
INPUT
VC = 16.5 V, VIN > 26 V
Required for proper startup
VC = 16.5 V, dVC/dt = 0.25 V/µs
VC slew rate
dVC/dt
IINR_VC
0.02
0.25
750
V/µs
mA
Start Up
VC inrush current
VIN pre-applied, PC floating, VC
VC output turn-on delay
VC to PC delay
tON
500
25
µs
µs
enable; CPC = 0 µF, COUT = 4000 µF
Transitional
VC = 12 V to PC high, VIN = 0 V,
dVC/dt = 0.25 V/µs
tVC_PC
10
Primary Control: PC
• The PC pin enables and disables the VTM. When held below 2 V, the VTM will be disabled.
• PC pin outputs 5 V during normal operation. PC pin is equal to 2.5 V during fault mode given Vin ≥ 26 V and VC ≥ 12 V.
• After successful start-up and under no fault condition, PC can be used as a 5 V regulated voltage source with a 2 mA maximum current.
• Module will shutdown when pulled low with an impedance less than 400 Ω.
• In an array of VTMs, connect PC pin to synchronize startup.
• PC pin cannot sink current and will not disable other modules during fault mode.
SIGNAL TYPE
STATE
ATTRIBUTE
PC voltage
SYMBOL CONDITIONS / NOTES
MIN
4.7
TYP
MAX UNIT
VPC
5.0
5.3
2
V
mA
kΩ
µA
pF
kΩ
V
Steady
PC source current
IPC_OP
PC resistance (internal)
PC source current
RPC_INT
IPC_EN
Internal pull down resistor
50
50
150
100
400
300
50
ANALOG
INPUT
Start Up
PC capacitance (internal)
PC resistance (external)
PC voltage (enable)
PC voltage (disable)
PC pull down current
PC disable time
CPC_INT
RPC_EXT
VPC_EN
VPC_DIS
IPC_PD
60
2
Enable
Disable
2.5
3
2
V
DIGITAL
INPUT / OUTPUT
5.1
mA
µs
tPC_DIS_T
tFR_PC
4
Transitional
PC fault response time
From fault to PC = 2 V
100
µs
VTM™ Current Multiplier
Rev 1.4
Page 16 of 31
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Re fe r t o p a g e 5
MVTM36 Series
Signal Characteristics (Cont.)
Specifications apply over all line and load conditions, unless otherwise noted; Boldface specifications apply over the temperature range of
-55°C < TJ < 125°C (T-Grade); All other specifications are at TJ = 25ºC unless otherwise noted.
Temperature Monitor: TM
• The TM pin monitors the internal temperature of the VTM controller IC within an accuracy of 5°C.
• Can be used as a "Power Good" flag to verify that the VTM is operating.
• The TM pin has a room temperature setpoint of 3 V (@27°C) and approximate gain of 10 mV/ °C.
SIGNAL TYPE
STATE
Steady
ATTRIBUTE
TM voltage
SYMBOL CONDITIONS / NOTES
MIN
TYP
MAX UNIT
VTM_AMB
ITM
TJ controller = 27°C
2.95
3.00
3.05
V
µA
ANALOG
OUTPUT
TM source current
TM gain
100
ATM
10
0
mV/°C
V
Disable
TM voltage
VTM_DIS
RTM_INT
CTM_EXT
tFR_TM
DIGITAL
OUTPUT
(FAULT FLAG)
TM resistance (internal)
TM capacitance (external)
TM fault response time
Internal pull down resistor
From fault to TM = 1.5 V
25
40
50
50
kΩ
pF
Transitional
10
µs
VTM™ Current Multiplier
Rev 1.4
Page 17 of 31
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Re fe r t o p a g e 5
MVTM36 Series
Timing diagram
VTM™ Current Multiplier
Rev 1.4
Page 18 of 31
10/2020
Se le ct De vice s a re En d o f Life
Re fe r t o p a g e 5
MVTM36 Series
General Characteristics
Specifications apply over all line and load conditions, unless otherwise noted; Boldface specifications apply over the temperature range of
-55°C < TJ < 125°C (T-Grade); All other specifications are at TJ = 25ºC unless otherwise noted.
Attribute
Symbol
Conditions / Notes
Min
Typ
Max
Unit
Mechanical
(Full VIC)
Length
L
W
H
32.25 / [1.270] 32.5 / [1.280] 32.75 / [1.289] mm/[in]
21.75 / [0.856] 22.0 / [0.866] 22.25 / [0.876] mm/[in]
Width
Height
6.48 / [0.255] 6.73 / [0.265] 6.98 / [0.275]
4.81 / [0.294]
mm/[in]
cm3/[in3]
g/[oz]
Volume
Weight
(Half VIC)
Length
Vol
W
No heat sink
15.0 / [0.53]
L
W
H
21.7 / [0.85]
16.4 / [0.64]
22.0 / [0.87]
16.5 / [0.65]
22.3 / [0.88]
16.6 / [0.66]
mm/[in]
mm/[in]
mm/[in]
cm3/[in3]
g/[oz]
Width
Height
6.48 / [0.255] 6.73 / [0.265] 6.98 / [0.275]
Volume
Weight
Vol
W
No heat sink
2.44 / [0.150]
8.0 / [0.28]
Nickel
0.51
0.02
2.03
0.15
Lead finish
Palladium
Gold
µm
0.003
0.051
Thermal
Operating temperature
TJ
-55
125
°C
Isothermal heat sink and isothermal
internal PCB
Thermal Resistance (Full VIC)
ΦJC
1
°C/W
Isothermal heat sink and
isothermal internal PCB
Thermal Resistance (Half VIC)
ΦJC
2.2
°C/W
°C
Assembly
Storage temperature
TST
-65
125
Human Body Model Component Level
ANSI/ESDA/JEDEC JS-001-2012,
Class 1C 1000 to <2000 V
ESDHBM
1000
ESD withstand
VDC
Field Induced Change Device Model
JESD22-C101E, Class II 200 to <500 V
ESDCDM
200
VTM™ Current Multiplier
Rev 1.4
Page 19 of 31
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Se le ct De vice s a re En d o f Life
Re fe r t o p a g e 5
MVTM36 Series
General Characteristics Cont.
Specifications apply over all line and load conditions, unless otherwise noted; Boldface specifications apply over the temperature range of
-55°C < TJ < 125°C (T-Grade); All other specifications are at TJ = 25ºC unless otherwise noted.
Attribute
Symbol
Conditions / Notes
Min
Typ
Max
Unit
Soldering
Peak temperature during reflow
Peak time above 217°C
Peak heating rate during reflow
Peak cooling rate post reflow
Safety
MSL 4 (Datecode 1528 and later)
245
90
3
°C
s
60
1.5
1.5
°C/s
°C/s
6
Isolation voltage (hipot)
Isolation resistance
VHIPOT
2250
10
VDC
RIN_OUT
MΩ
cTUVus
cURus
Agency approvals / standards
CE Marked for low voltage directive and RoHS recast directive, as applicable
VTM™ Current Multiplier
Rev 1.4
Page 20 of 31
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Se le ct De vice s a re En d o f Life
Re fe r t o p a g e 5
MVTM36 Series
Using the control signals VC, PC, TM, IM
Startup behavior
Depending on the sequencing of the VC with respect to the input
voltage, the behavior during startup will vary as follows:
The VTM Control (VC) pin is an input pin which powers the internal
VCC circuitry when within the specified voltage range of 12 V to 16.5 V.
This voltage is required in order for the VTM module to start, and must
be applied as long as the input is below 26 V. In order to ensure a
proper start, the slew rate of the applied voltage must be within the
specified range.
n Normal Operation (VC applied prior to Vin): In this case the
controller is active prior to ramping the input. When the input
voltage is applied, the VTM output voltage will track the input. The
inrush current is determined by the input voltage rate of rise and
output capacitance. If the VC voltage is removed prior to the input
reaching 26 V, the VTM module may shut down.
Some additional notes on the using the VC pin:
n In most applications, the VTM module will be powered
by an upstream PRM® which provides a 10 ms VC pulse
during startup. In these applications the VC pins of the PRM
and VTM should be tied together.
n Stand Alone Operation (VC applied aꢀer Vin): In this case the
module output will begin to rise upon the application of the VC
voltage. A soꢀ-start circuit may vary the ouput rate of rise in order
to limit the inrush current to it’s maximum level. When starting into
high capacitance, or a short, the output current will be limited for a
maximum of 900 μsec. Aꢀer this period, the adaptive soꢀ start
circuit will time out and the module may shut down. No restart will
be attempted until VC is re-applied, or PC is toggled. To ensure a
successful start in this mode of operation, additional capacitance on
the output of the VTM should be kept to a minimum.
n The VC voltage can be applied indefinitely allowing for
continuous operation down to 0 VIN
.
n The fault response of the VTM module is latching.
A positive edge on VC is required in order to restart the unit.
If VC is continuously applied the PC pin may be toggled
to restart the module.
Primary Control (PC) pin can be used to accomplish the following
functions:
Thermal Considerations
VI Chip® products are multi-chip modules whose temperature
distribution varies greatly for each part number as well as with the
input / output conditions, thermal management and environmental
conditions. Maintaining the top of the VTM case to less than 100ºC will
keep all junctions within the VI Chip below 125ºC for most
applications.
n Delayed start: Upon the application of VC, the PC pin will
source a constant 100 μA current to the internal RC
network. Adding an external capacitor will allow further
delay in reaching the 2.5 V threshold for module start.
n Auxiliary voltage source: Once enabled in regular
operational conditions (no fault), each VTM PC provides a
regulated 5 V, 2 mA voltage source.
The percent of total heat dissipated through the top surface versus
through the J-lead is entirely dependent on the particular mechanical
and thermal environment. The heat dissipated through the top surface
is typically 60%. The heat dissipated through the J-lead onto the PCB
board surface is typically 40%. Use 100% top surface dissipation when
designing for a conservative cooling solution.
n Output disable: PC pin can be actively pulled down in order
to disable the module. Pull down impedance shall be lower
than 400 Ω.
It is not recommended to use a VI Chip module for an extended period
of time at full load without proper heat sinking
n Fault detection flag: The PC 5 V voltage source is internally
turned off as soon as a fault is detected. It is important to
notice that PC doesn’t have current sink capability. Therefore,
in an array, PC line will not be capable of disabling
neighboring modules if a fault is detected.
n Fault reset: PC may be toggled to restart the unit if VC
is continuously applied.
Temperature Monitor (TM) pin provides a voltage proportional to the
absolute temperature of the converter control IC.
It can be used to accomplish the following functions:
n Monitor the control IC temperature: The temperature in
Kelvin is equal to the voltage on the TM pin scaled
by 100. (i.e. 3.0 V = 300 K = 27ºC). If a heat sink is applied,
TM can be used to thermally protect the system.
n Fault detection flag: The TM voltage source is internally
turned off as soon as a fault is detected. For system
monitoring purposes (microcontroller interface) faults are
detected on falling edges of TM signal.
Current Monitor (IM) (half chip models only) pin provides a voltage
proportional to the output current of the VTM module. The nominal
voltage will vary between VIM_NL to VIM_FL over the output current range
of the module. The accuracy of the IM pin will be within 25% under all
line and temperature conditions between 50% and 100% load.
VTM™ Current Multiplier
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150 pH
II
R
R
OUT
LIN = 1.7 nH
OUT
LOUT = 600 pH
+
+
6.2 mΩ
RCOUT
330 µΩ
R
RCIN
Ω
350 m
6.3mΩ
V•I
K
1/12 • IOUT
1/12 • V
IN
+
+
–
C
CC
C
900 nFI
0.057 A
68 µF
IN
OUT
VOUT
V
IQ
IN
–
–
–
Figure 1 — VI Chip® module AC model (MVTM48EH040M025A00 shown)
Sine Amplitude Converter™
Point of Load Conversion
The Sine Amplitude Converter (SAC™) uses a high frequency resonant
tank to move energy from input to output. The resonant LC tank,
operated at high frequency, is amplitude modulated as function of
input voltage and output current. A small amount of capacitance
embedded in the input and output stages of the module is sufficient for
full functionality and is key to achieving power density.
R
SAC
K = 1/32
Vout
+
–
Vin
A typical SAC can be simplified into the model above.
At no load:
Figure 2 — K = 1/32 Sine Amplitude Converter™
with series input resistor
VOUT = VIN • K
(1)
The relationship between VIN and VOUT becomes:
K represents the “turns ratio” of the SAC.
Rearranging Eq (1):
VOUT = (VIN – IIN • R) • K
(5)
Substituting the simplified version of Eq. (4)
(IQ is assumed = 0 A) into Eq. (5) yields:
K =
VOUT
VIN
(2)
VOUT = VIN • K – IOUT • R • K2
(6)
In the presence of load, Vout is represented by:
This is similar in form to Eq. (3), where ROUT is used to represent the
characteristic impedance of the SAC™. However, in this case a real R on
the input side of the SAC is effectively scaled by K2 with respect
to the output.
VOUT = VIN • K – IOUT • ROUT
(3)
and Iout is represented by:
Assuming that R = 1 Ω, the effective R as seen from the secondary side
is 0.98 mΩ, with K = 1/32 as shown in Figure 2.
IOUT
=
IIN – IQ
K
(4)
A similar exercise should be performed with the additon of a capacitor,
or shunt impedance, at the input to the SAC. A switch in series with VIN
is added to the circuit. This is depicted in Figure 3.
ROUT represents the impedance of the SAC, and is a function of the
RDSON of the input and output MOSFETs and the winding resistance of
the power transformer. Iq represents the quiescent current of the SAC
control and gate drive circuitry.
The use of DC voltage transformation provides additional interesting
attributes. Assuming for the moment that ROUT = 0 Ω and IQ = 0 A, Eq.
(3) now becomes Eq. (1) and is essentially load independent. A resistor
R is now placed in series with VIN as shown in Figure 2.
VTM™ Current Multiplier
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MVTM36 Series
Therefore,
P
OUT = PIN – PDISSIPATED = PIN – PNL – PROUT
(11)
S
SAC
K = 1/32
The above relations can be combined to calculate the overall module
efficiency:
Vout
+
–
C
Vin
POUT
PIN
=
PIN – PNL – PROUT
PIN
h =
(12)
Figure 3 — Sine Amplitude Converter™ with input capacitor
VIN • IIN – PNL – (IOUT)2 • ROUT
VIN • IIN
=
A change in VIN with the switch closed would result in a change in
capacitor current according to the following equation:
dVin
PNL + (IOUT)2 • ROUT
1 –
IC(t)
=
C
(7)
=
(
)
dt
VIN • IIN
Assume that with the capacitor charged to VIN, the switch is opened
and the capacitor is discharged through the idealized SAC. In this case,
Input and Output Filter Design
A major advantage of a SAC™ system versus a conventional PWM
converter is that the former does not require large functional filters.
The resonant LC tank, operated at extreme high frequency, is amplitude
modulated as a function of input voltage and output current and
efficiently transfers charge through the isolation transformer. A small
amount of capacitance embedded in the input and output stages of the
module is sufficient for full functionality and is key to achieving high
power density.
IC
=
IOUT • K
(8)
Substituting Eq. (1) and (8) into Eq. (7) reveals:
C
•
dVOUT
dt
IOUT
=
(9)
K2
This paradigm shiꢀ requires system design to carefully evaluate
external filters in order to:
Writing the equation in terms of the output has yielded a K2 scaling
factor for C, this time in the denominator of the equation. For a K factor
less than unity, this results in an effectively larger capacitance on the
output when expressed in terms of the input. With a K = 1/32 as shown
in Figure 3, C = 1 μF would effectively appear as C = 1024 μF when
viewed from the output.
1. Guarantee low source impedance.
To take full advantage of the VTM module dynamic
response, the impedance presented to its input terminals
must be low from DC to approximately 5 MHz. Input
capacitance may be added to improve transient
performance or compensate for high source impedance.
Low impedance is a key requirement for powering a high-current,
low-voltage load efficiently. A switching regulation stage should have
minimal impedance, while simultaneously providing appropriate
filtering for any switched current. The use of a SAC between the
regulation stage and the point of load provides a dual benefit, scaling
down series impedance leading back to the source and scaling up shunt
capacitance (or energy storage) as a function of its K factor squared.
However, these benefits are not useful if the series impedance of the
SAC is too high. The impedance of the SAC must be low well beyond
the crossover frequency of the system.
2. Further reduce input and/or output voltage ripple without
sacrificing dynamic response.
Given the wide bandwidth of the VTM module, the source
response is generally the limiting factor in the overall
system response. Anomalies in the response of the source
will appear at the output of the module multiplied by its
K factor.
3. Protect the module from overvoltage transients imposed
by the system that would exceed maximum ratings and
cause failures.
A solution for keeping the impedance of the SAC low involves
switching at a high frequency. This enables magnetic components to be
small since magnetizing currents remain low. Small magnetics mean
small path lengths for turns. Use of low loss core material at high
frequencies reduces core losses as well.
The VI Chip® module input/output voltage ranges must
not be exceeded. An internal overvoltage lockout function
prevents operation outside of the normal operating input
range. Even during this condition, the powertrain is
exposed to the applied voltage and power MOSFETs must
withstand it.
The two main terms of power loss in the VTM module are:
n No load power dissipation (Pnl): defined as the power used to power
up the module with an enabled power train at no load.
n Resistive loss (ROUT): refers to the power loss across the VTM current
multiplier modeled as pure resistive impedance.
PDISSIPATED
=
PNL + PROUT
(10)
VTM™ Current Multiplier
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MVTM36 Series
When connected in an array with the same K factor, the VTM module
will inherently share the load current with parallel units, according to
the equivalent impedance divider that the system implements from the
power source to the point of load.
Capacitive Filtering Considerations
for a Sine Amplitude Converter
It is important to consider the impact of adding input and output
capacitance to a Sine Amplitude Converter™ on the system as a whole.
Both the capacitance value, and the effective impedance of the
capacitor must be considered.
Some general recommendations to achieve matched array impedances:
n Dedicate common copper planes within the PCB
to deliver and return the current to the modules.
A Sine Amplitude Converter has a DC ROUT value which has already
been discussed in the previous section. The AC ROUT of the SAC contains
several terms:
n Provide the PCB layout as symmetric as possible.
n Apply same input / output filters (if present) to each unit.
n Resonant tank impedance
n Input lead inductance and internal capacitance
n Output lead inductance and internal capacitance
For further details see AN:016 Using BCM® Bus Converters
in High Power Arrays.
The values of these terms are shown in the behavioral model in the
prior section. It is important to note on which side of the transformer
these impedances appear and how they reflect across the transformer
given the K factor.
ZIN_EQ1
ZOUT_EQ1
VTM®1
RO_1
VIN
VOUT
The overall AC impedance varies from model to model but for most
models it is dominated by DC Rout value from DC to beyond 500 KHz.
ZIN_EQ2
ZOUT_EQ2
Any capacitors placed at the output of the VTM module reflect back to
the input of the module by the square of the K factor (Eq. 9) with the
impedance of the module appearing in series. It is very important to
keep this in mind when using a PRM® regulator to power the VTM.
Most PRM regulators have a limit on the maximum amount of
capacitance that can be applied to the output. This capacitance includes
both the regulator output capacitance and the current multiplier
output capacitance reflected back to the input. In PRM regulator
remote sense applications, it is important to consider the reflected
value of VTM current multiplier output capacitance when designing
and compensating the PRM regulator control loop.
VTM®2
RO_2
+
–
Load
DC
ZIN_EQn
ZOUT_EQn
VTM®n
RO_n
Figure 4 — VTM module array
Capacitance placed at the input of the VTM module appear to the load
reflected by the K factor, with the impedance of the VTM module in
series. In step-down VTM ratios, the effective capacitance is increased
by the K factor. The effective ESR of the capacitor is decreased by the
square of the K factor, but the impedance of the VTM module appears
in series. Still, in most step-down VTM modules an electrolytic
capacitor placed at the input of the module will have a lower effective
impedance compared to an electrolytic capacitor placed at the output.
This is important to consider when placing capacitors at the output of
the current multiplier. Even though the capacitor may be placed at the
output, the majority of the AC current will be sourced from the lower
impedance, which in most cases will be the VTM current multiplier.
This should be studied carefully in any system design using a VTM
current multiplier. In most cases, it should be clear that electrolytic
output capacitors are not necessary to design a stable,
Fuse Selection
In order to provide flexibility in configuring power systems VI Chip®
products are not internally fused. Input line fusing of VI Chip products
is recommended at system level to provide thermal protection in case
of catastrophic failure.
The fuse shall be selected by closely matching system
requirements with the following characteristics:
n Current rating (usually greater than maximum
VTM module current)
n Maximum voltage rating (usually greater than the maximum
possible input voltage)
well-bypassed system.
n Ambient temperature
n Nominal melting I2t
Current Sharing
The SAC™ topology bases its performance on efficient transfer of
energy through a transformer without the need of closed loop control.
For this reason, the transfer characteristic can be approximated by an
ideal transformer with some resistive drop and positive
temperature coefficient.
Reverse Operation
The MVTM is capable of reverse operation.
If a voltage is present at the output which satisfies the condition VOUT
VIN • K at the time the VC voltage is applied, or aꢀer the unit has
>
started, then energy will be transferred from secondary to primary. The
input to output ratio will be maintained. The MVTM will continue to
operate in reverse as long as the input and output are within the
specified limits. The MVTM has not been qualified for continuous
operation (>10 ms) in the reverse direction.
This type of characteristic is close to the impedance characteristic of a
DC power distribution system, both in behavior (AC dynamic) and
absolute value (DC dynamic).
VTM™ Current Multiplier
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MVTM36 Series
Product Outline & Recommended Land Pattern; Full VIC SMD, 18 pin
VTM™ Current Multiplier
Rev 1.4
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MVTM36 Series
Product Outline & Recommended Land Pattern; Full VIC TH, 60 pin
VTM™ Current Multiplier
Rev 1.4
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MVTM36 Series
Recommended Heat Sink Push Pin Location; Full
(NO GROUNDING CLIPS)
(WITH GROUNDING CLIPS)
Notes:
5. Unless otherwise specified:
Dimensions are mm (inches)
tolerances are:
x.x (x.xx) = 0.3 (0.01)
x.xx (x.xxx) = 0.13 (0.005)
1. Maintain 3.50 (0.138) Dia. keep-out zone
free of copper, all PCB layers.
3. VI Chip® module land pattern shown for reference
only; actual land pattern may differ.
Dimensions from edges of land pattern
to push–pin holes will be the same for
all full-size VI Chip® products.
2. (A) Minimum recommended pitch is 39.50 (1.555).
This provides 7.00 (0.275) component
edge-to-edge spacing, and 0.50 (0.020)
clearance between Vicor heat sinks.
(B) Minimum recommended pitch is 41.00 (1.614).
This provides 8.50 (0.334) component
edge-to-edge spacing, and 2.00 (0.079)
clearance between Vicor heat sinks.
4. RoHS compliant per CST–0001 latest revision.
6. Plated through holes for grounding clips (33855)
shown for reference, heat sink orientation and
device pitch will dictate final grounding solution.
VTM™ Current Multiplier
Rev 1.4
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MVTM36 Series
Mechanical Drawing; Half VIC SMT, 12 pin
VTM™ Current Multiplier
Rev 1.4
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MVTM36 Series
Recommended Heat Sink Push Pin Location; Half
(NO GROUNDING CLIPS)
(WITH GROUNDING CLIPS)
Notes:
1. Maintain 3.50 (0.138) Dia. keep-out zone
free of copper, all PCB layers.
3. VI Chip® module land pattern shown
for reference only, actual land pattern may differ.
Dimensions from edges of land pattern
to push–pin holes will be the same for
all half size V•I Chip Products.
5. Unless otherwise specified:
Dimensions are mm (inches)
tolerances are:
2. (A) minimum recommended pitch is 24.00 (0.945)
this provides 7.50 (0.295) component
x.x (x.xx) = 0.13 (0.01)
x.xx (x.xxx) = 0.13 (0.005)
edge–to–edge spacing, and 0.50 (0.020)
clearance between Vicor heat sinks.
4. RoHS compliant per CST–0001 latest revision.
6. Plated through holes for grounding clips (33855)
shown for reference. Heat sink orientation and
device pitch will dictate final grounding solution.
(B) Minimum recommended pitch is 25.50 (1.004).
This provides 9.00 (0.354) component
edge–to–edge spacing, and 2.00 (0.079)
clearance between Vicor heat sinks.
VTM™ Current Multiplier
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MVTM36 Series
Revision History
Page
Revision
Date
Description
Number(s)
1.0
1.1
1.2
1.3
1.4
3/2014
11/25/2014
1/07/2015
07/17/15
10/23/20
Initial Release
n/a
12
Typ value of VC Internal Resistor
Updated 3 V part to B version
5
MSL changes
19 & 20
12
Revised ambient and hot output resistance specs for MVTM36BF360M003A00
VTM™ Current Multiplier
Rev 1.4
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MVTM36 Series
Vicor’s comprehensive line of power solutions includes high density AC-DC and DC-DC modules and
accessory components, fully configurable AC-DC and DC-DC power supplies, and complete custom
power systems.
Information furnished by Vicor is believed to be accurate and reliable. However, no responsibility is assumed by Vicor for its use. Vicor
makes no representations or warranties with respect to the accuracy or completeness of the contents of this publication. Vicor reserves
the right to make changes to any products, specifications, and product descriptions at any time without notice. Information published by
Vicor has been checked and is believed to be accurate at the time it was printed; however, Vicor assumes no responsibility for inaccuracies.
Testing and other quality controls are used to the extent Vicor deems necessary to support Vicor’s product warranty. Except where
mandated by government requirements, testing of all parameters of each product is not necessarily performed.
Specifications are subject to change without notice.
Visit http://www.vicorpower.com/dc-dc-converters-board-mount/vtm for the latest product information.
Vicor’s Standard Terms and Conditions and Product Warranty
All sales are subject to Vicor’s Standard Terms and Conditions of Sale, and Product Warranty which are available on Vicor’s webpage
(http://www.vicorpower.com/termsconditionswarranty) or upon request.
Life Support Policy
VICOR’S PRODUCTS ARE NOT AUTHORIZED FOR USE AS CRITICAL COMPONENTS IN LIFE SUPPORT DEVICES OR SYSTEMS WITHOUT THE
EXPRESS PRIOR WRITTEN APPROVAL OF THE CHIEF EXECUTIVE OFFICER AND GENERAL COUNSEL OF VICOR CORPORATION. As used
herein, life support devices or systems are devices which (a) are intended for surgical implant into the body, or (b) support or sustain life and
whose failure to perform when properly used in accordance with instructions for use provided in the labeling can be reasonably expected to
result in a significant injury to the user. A critical component is any component in a life support device or system whose failure to perform
can be reasonably expected to cause the failure of the life support device or system or to affect its safety or effectiveness. Per Vicor Terms
and Conditions of Sale, the user of Vicor products and components in life support applications assumes all risks of such use and indemnifies
Vicor against all liability and damages.
Intellectual Property Notice
Vicor and its subsidiaries own Intellectual Property (including issued U.S. and Foreign Patents and pending patent applications) relating to the
products described in this data sheet. No license, whether express, implied, or arising by estoppel or otherwise, to any intellectual property
rights is granted by this document. Interested parties should contact Vicor’s Intellectual Property Department.
The products described on this data sheet are protected by the following U.S. Patents Numbers:
5,945,130; 6,403,009; 6,710,257; 6,911,848; 6,930,893; 6,934,166; 6,940,013; 6,969,909; 7,038,917; 7,145,186; 7,166,898; 7,187,263;
7,202,646; 7,361,844; D496,906; D505,114; D506,438; D509,472; and for use under 6,975,098 and 6,984,965.
Contact Us: http://www.vicorpower.com/contact-us
Vicor Corporation
25 Frontage Road
Andover, MA, USA 01810
Tel: 800-735-6200
Fax: 978-475-6715
www.vicorpower.com
email
Customer Service: custserv@vicorpower.com
Technical Support: apps@vicorpower.com
©2020 Vicor Corporation. All rights reserved. The Vicor name is a registered trademark of Vicor Corporation.
All other trademarks, product names, logos and brands are property of their respective owners.
VTM™ Current Multiplier
Rev 1.4
Page 31 of 31
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