MVTM36BT015M080A00_技术文档

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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

V_IN= 26.0 V to 50.0 V

P_OUT= up to 150 W

I_OUT= up to 80 A

n Operating from MIL-COTs PRM^®modules

V_OUT= 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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Rev 1.4

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MVTM36 Series

Typical Application

PRM AL

RSC

SC

OS

VH

TM

VC

CSC

ROS

VTM

V_OUT

VTM Start Up Pulse and Temperature Feedback

CD

IL

VC

TM

PC

+OUT

RCD

0.01µF

PC

PR

RVC

10K

R_DF

SGND

V_IN

+IN

–IN

+OUT

–OUT

+IN

–IN

16 V to 50 V

L_F

F₁

1

C_IN

VF: 26 V to 50 V

C_F

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

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

V_IN

K

V_OUT

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

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 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

Full VIC SMD

Full VIC TH

5 A

Full VIC SMD

Full VIC TH

3 A

Half VIC SMD

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

25 A

20 A

10 A

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

V_DC

PC to -IN

TM to -IN

-0.3

20

7

V_DC

VC to -IN

-0.3

0

20

V_DC

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 < T_J< 125°C (T-Grade); All other specifications are at T_J= 25ºC unless otherwise noted.

Attribute

Symbol

Conditions / Notes

No external VC applied

Min

26

0

Typ

Max

50

1

Unit

Input voltage range

V_IN

V_DC

VC applied

V_INslew rate

dV_IN/dt

V_{OUT_PP}

V/µs

Output voltage ripple

C_OUT= 0 F, I_OUT= Full Load, V_IN= 48 V, 20 MHz BW

Protection

5

% V_OUT

Overvoltage lockout

V_{IN_OVLO+}

t_OVLO

I_OCP

I_SCP

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

% I_{OUT_AVG}

Short circuit protection trip current

Output overcurrent

t_OCP

Effective internal RC filter (Integrative)

3.8

ms

response time constant

From detection to cessation of switching

(Instantaneous)

Short cicuit protection response time

t_SCP

1

µs

Thermal shutdown setpoint

T_{J_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 < T_J< 125°C (T-Grade); All other specifications are at T_J= 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

P_NL

K

V_IN= 26 V to 50 V

W

V/V

V

K = V_OUT/ V_IN, I_OUT= 0 A

V_OUT= V_IN• K - I_OUT• R_OUT

Ouput voltage

V_OUT

Output current (average)

Output current (peak)

I_{OUT_AVG}

I_{OUT_PK}

80

A

t_PEAK< 10 ms, I_{OUT_AVG}≤ 80 A

V_IN= 36 V, I_OUT= 80 A

120

A

90.0

87.3

0.40

0.55

0.65

1.50

3.00

h_AMB

Efficiency (ambient)

%

V_IN= 26 V to 50 V, I_OUT= 80 A

T_C= -40°C, I_OUT= 80 A

T_C= 25°C, I_OUT= 80 A

Output resistance (cold)

Output resistance (ambient)

Output resistance (hot)

Switching frequency

R_{OUT_COLD}

R_{OUT_AMB}

R_{OUT_HOT}

f_SW

0.76

0.98

1.18

1.60

3.20

1.0

1.4

mΩ

T_C= 100°C, I_OUT= 80 A

1.5

mΩ

1.70

3.40

MHz

Output ripple frequency

f_{SW_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

R_VC-INT

kΩ

P_NL

K

V_IN= 26 V to 50 V

8.6

W

V/V

V

K = V_OUT/ V_IN, I_OUT= 0 A

V_OUT= V_IN• K - I_OUT• R_OUT

1/16

93.7

Ouput voltage

V_OUT

Output current (average)

Output current (peak)

I_{OUT_AVG}

I_{OUT_PK}

55

82

A

t_PEAK< 10 ms, I_{OUT_AVG}≤ 55 A

V_IN= 36 V, I_OUT= 55 A

A

92.6

88.8

0.6

h_AMB

Efficiency (ambient)

%

V_IN= 26 V to 50 V, I_OUT= 55 A

T_C= -40°C, I_OUT= 55 A

T_C= 25°C, I_OUT= 55 A

Output resistance (cold)

Output resistance (ambient)

Output resistance (hot)

Switching frequency

R_{OUT_COLD}

R_{OUT_AMB}

R_{OUT_HOT}

f_SW

1.1

1.4

1.8

1.9

mΩ

0.8

T_C= 100°C, I_OUT= 55 A

1.0

1.7

2.2

mΩ

1.36

2.72

1.43

2.86

1.50

3.00

MHz

Output ripple frequency

f_{SW_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

R_VC-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 < T_J< 125°C (T-Grade); All other specifications are at T_J= 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

P_NL

K

V_IN= 26 V to 50 V

W

V/V

V

K = V_OUT/ V_IN, I_OUT= 0 A

V_OUT= V_IN• K - I_OUT• R_OUT

Ouput voltage

V_OUT

Output current (average)

Output current (peak)

I_{OUT_AVG}

I_{OUT_PK}

40

60

A

t_PEAK< 10 ms, I_{OUT_AVG}≤ 40 A

V_IN= 36 V, I_OUT= 40 A

A

92.5

90.2

1.0

h_AMB

Efficiency (ambient)

%

V_IN= 26 V to 50 V, I_OUT= 40 A

T_C= -40°C, I_OUT= 40 A

T_C= 25°C, I_OUT= 40 A

Output resistance (cold)

Output resistance (ambient)

Output resistance (hot)

Switching frequency

R_{OUT_COLD}

R_{OUT_AMB}

R_{OUT_HOT}

f_SW

1.6

2.2

2.3

3.0

mΩ

1.5

T_C= 100°C, I_OUT= 40 A

2.0

2.6

3.3

mΩ

1.36

2.72

1.43

2.86

1.50

3.00

MHz

Output ripple frequency

f_{SW_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

R_VC-INT

kΩ

P_NL

K

V_IN= 26 V to 50 V

7.0

W

V/V

V

K = V_OUT/ V_IN, I_OUT= 0 A

V_OUT= V_IN• K - I_OUT• R_OUT

1/8

Ouput voltage

V_OUT

Output current (average)

Output current (peak)

I_{OUT_AVG}

I_{OUT_PK}

27

40

A

t_PEAK< 10 ms, I_{OUT_AVG}≤ 27 A

V_IN= 36 V, I_OUT= 27 A

A

93.0

89.3

2.5

94.7

h_AMB

Efficiency (ambient)

%

V_IN= 26 V to 55 V, I_OUT= 27 A

T_C= -40°C, I_OUT= 27 A

T_C= 25°C, I_OUT= 27 A

Output resistance (cold)

Output resistance (ambient)

Output resistance (hot)

Switching frequency

R_{OUT_COLD}

R_{OUT_AMB}

R_{OUT_HOT}

f_SW

4.6

6.0

5.9

7.8

mΩ

3.8

T_C= 100°C, I_OUT= 27 A

4.5

7.1

9.0

mΩ

1.10

2.20

1.21

2.42

1.30

2.60

MHz

Output ripple frequency

f_{SW_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

R_VC-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 < T_J< 125°C (T-Grade); All other specifications are at T_J= 25ºC unless otherwise noted.

Attribute

Symbol

Conditions / Notes

Min

Typ

1/6

Max

14.0

Unit

MVTM36BF060M020A00

No load power dissipation

Transfer ratio

P_NL

K

V_IN= 26 V to 50 V

W

V/V

V

K = V_OUT/ V_IN, I_OUT= 0 A

V_OUT= V_IN• K - I_OUT• R_OUT

Ouput voltage

V_OUT

Output current (average)

Output current (peak)

I_{OUT_AVG}

I_{OUT_PK}

20

30

A

t_PEAK< 10 ms, I_{OUT_AVG}≤ 20 A

V_IN= 36 V, I_OUT= 20 A

A

94.6

92.0

3.0

95.5

h_AMB

Efficiency (ambient)

%

V_IN= 26 V to 50 V, I_OUT= 20 A

T_C= -40°C, I_OUT= 20 A

T_C= 25°C, I_OUT= 20 A

Output resistance (cold)

Output resistance (ambient)

Output resistance (hot)

Switching frequency

R_{OUT_COLD}

R_{OUT_AMB}

R_{OUT_HOT}

f_SW

7.0

8.0

9.0

mΩ

5.0

10.0

15.0

1.57

3.14

T_C= 100°C, I_OUT= 20 A

6.0

12.0

1.52

3.04

mΩ

1.47

7.94

MHz

Output ripple frequency

f_{SW_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

R_VC-INT

0.56

kΩ

P_NL

K

V_IN= 26 V to 50 V

14.0

W

V/V

V

K = V_OUT/ V_IN, I_OUT= 0 A

V_OUT= V_IN• K - I_OUT• R_OUT

1/5

Ouput voltage

V_OUT

Output current (average)

Output current (peak)

I_{OUT_AVG}

I_{OUT_PK}

17

25

A

t_PEAK< 10 ms, I_{OUT_AVG}≤ 17 A

V_IN= 36 V, I_OUT= 17 A

A

95.3

92.0

3.3

95.9

h_AMB

Efficiency (ambient)

%

V_IN= 26 V to 55 V, I_OUT= 17 A

T_C= -40°C, I_OUT= 17 A

T_C= 25°C, I_OUT= 17 A

Output resistance (cold)

Output resistance (ambient)

Output resistance (hot)

Switching frequency

R_{OUT_COLD}

R_{OUT_AMB}

R_{OUT_HOT}

f_SW

5.6

7.8

mΩ

5.0

10.0

12.0

1.60

3.20

T_C= 100°C, I_OUT= 17 A

7.0

9.1

mΩ

1.50

3.00

1.55

3.10

MHz

Output ripple frequency

f_{SW_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

R_VC-INT

0.56

kΩ

VTM™ Current Multiplier

Rev 1.4

Page 9 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 < T_J< 125°C (T-Grade); All other specifications are at T_J= 25ºC unless otherwise noted.

Attribute

Symbol

Conditions / Notes

Min

Typ

1/4

Max

14.0

Unit

MVTM36BF090M013A00

No load power dissipation

Transfer ratio

P_NL

K

V_IN= 26 V to 50 V

W

V/V

V

K = V_OUT/ V_IN, I_OUT= 0 A

V_OUT= V_IN• K - I_OUT• R_OUT

Ouput voltage

V_OUT

Output current (average)

Output current (peak)

I_{OUT_AVG}

I_{OUT_PK}

13

19

A

t_PEAK< 10 ms, I_{OUT_AVG}≤ 13 A

V_IN= 36 V, I_OUT= 13 A

A

93.8

93.5

2.0

95.3

h_AMB

Efficiency (ambient)

%

V_IN= 26 V to 50 V, I_OUT= 13 A

T_C= -40°C, I_OUT= 13 A

T_C= 25°C, I_OUT= 13 A

Output resistance (cold)

Output resistance (ambient)

Output resistance (hot)

Switching frequency

R_{OUT_COLD}

R_{OUT_AMB}

R_{OUT_HOT}

f_SW

5.5

8.9

9.5

mΩ

3.9

13.4

15.9

2.05

4.10

T_C= 100°C, I_OUT= 13 A

5.0

10.6

1.95

3.90

mΩ

1.85

3.70

MHz

Output ripple frequency

f_{SW_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

R_VC-INT

0.51

kΩ

P_NL

K

V_IN= 26 V to 50 V

10.5

W

V/V

V

K = V_OUT/ V_IN, I_OUT= 0 A

V_OUT= V_IN• K - I_OUT• R_OUT

1/3

Ouput voltage

V_OUT

Output current (average)

Output current (peak)

I_{OUT_AVG}

I_{OUT_PK}

10

15

A

t_PEAK< 10 ms, I_{OUT_AVG}≤ 10 A

V_IN= 36 V, I_OUT= 10 A

A

94.2

90.0

12.8

20.4

23.1

1.56

3.12

94.9

h_AMB

Efficiency (ambient)

%

V_IN= 26 V to 50 V, I_OUT= 10 A

T_C= -40°C, I_OUT= 10 A

T_C= 25°C, I_OUT= 10 A

Output resistance (cold)

Output resistance (ambient)

Output resistance (hot)

Switching frequency

R_{OUT_COLD}

R_{OUT_AMB}

R_{OUT_HOT}

f_SW

19.7

26.5

29.2

1.65

3.30

26.5

32.6

35.2

1.74

3.48

mΩ

T_C= 100°C, I_OUT= 10 A

mΩ

MHz

Output ripple frequency

f_{SW_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

R_VC-INT

kΩ

VTM™ Current Multiplier

Rev 1.4

Page 10 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 < T_J< 125°C (T-Grade); All other specifications are at T_J= 25ºC unless otherwise noted.

Attribute

Symbol

Conditions / Notes

Min

Typ

1/2

Max

13.5

Unit

MVTM36BF180M007A00

No load power dissipation

Transfer ratio

P_NL

K

V_IN= 26 V to 50 V

W

V/V

V

K = V_OUT/ V_IN, I_OUT= 0 A

V_OUT= V_IN• K - I_OUT• R_OUT

Ouput voltage

V_OUT

Output current (average)

Output current (peak)

I_{OUT_AVG}

I_{OUT_PK}

7

A

t_PEAK< 10 ms, I_{OUT_AVG}≤ 7 A

V_IN= 36 V, I_OUT= 7 A

10

A

93.0

92.0

19.7

30.0

35.0

1.68

3.36

94.0

h_AMB

Efficiency (ambient)

%

V_IN= 26 V to 50 V, I_OUT= 7 A

T_C= -40°C, I_OUT= 7 A

T_C= 25°C, I_OUT= 7 A

Output resistance (cold)

Output resistance (ambient)

Output resistance (hot)

Switching frequency

R_{OUT_COLD}

R_{OUT_AMB}

R_{OUT_HOT}

f_SW

40.0

55.0

60.0

1.77

3.54

60.7

75.0

90.0

1.86

3.72

mΩ

T_C= 100°C, I_OUT= 7 A

mΩ

MHz

Output ripple frequency

f_{SW_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

R_VC-INT

0.51

kΩ

P_NL

K

V_IN= 26 V to 50 V

8.5

W

V/V

V

K = V_OUT/ V_IN, I_OUT= 0 A

V_OUT= V_IN• K - I_OUT• R_OUT

2/3

Ouput voltage

V_OUT

Output current (average)

Output current (peak)

I_{OUT_AVG}

I_{OUT_PK}

5

A

t_PEAK< 10 ms, I_{OUT_AVG}≤ 5 A

V_IN= 36 V, I_OUT= 5 A

7.5

A

93.5

93.0

40.0

64.0

85.0

1.57

3.14

96.0

h_AMB

Efficiency (ambient)

%

V_IN= 26 V to 50 V, I_OUT= 5 A

T_C= -40°C, I_OUT= 5 A

T_C= 25°C, I_OUT= 5 A

Output resistance (cold)

Output resistance (ambient)

Output resistance (hot)

Switching frequency

R_{OUT_COLD}

R_{OUT_AMB}

R_{OUT_HOT}

f_SW

51.4

86.0

102.0

1.60

3.20

70.0

120.0

135

mΩ

T_C= 100°C, I_OUT= 5 A

mΩ

1.63

3.26

MHz

Output ripple frequency

f_{SW_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

R_VC-INT

kΩ

VTM™ Current Multiplier

Rev 1.4

Page 11 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 < T_J< 125°C (T-Grade); All other specifications are at T_J= 25ºC unless otherwise noted.

Attribute

Symbol

Conditions / Notes

Min

Typ

Max

9.0

Unit

MVTM36BF360M003A00

No load power dissipation

Transfer ratio

P_NL

K

V_IN= 26 V to 50 V

W

V/V

V

K = V_OUT/ V_IN, I_OUT= 0 A

V_OUT= V_IN• K - I_OUT• R_OUT

1

Ouput voltage

V_OUT

Output current (average)

Output current (peak)

I_{OUT_AVG}

I_{OUT_PK}

3

A

t_PEAK< 10 ms, I_{OUT_AVG}≤ 3 A

V_IN= 36 V, I_OUT= 3 A

4.5

A

95.3

93.3

96.0

h_AMB

Efficiency (ambient)

%

V_IN= 26 V to 50 V, I_OUT= 3 A

T_C= -40°C, I_OUT= 3 A

T_C= 25°C, I_OUT= 3 A

Output resistance (cold)

Output resistance (ambient)

Output resistance (hot)

Switching frequency

R_{OUT_COLD}

R_{OUT_AMB}

R_{OUT_HOT}

f_SW

55.0

108.0

140.0

190.0

1.67

175.0

168.0

228.0

1.70

mΩ

112.0

152.0

1.64

T_C= 100°C, I_OUT= 3 A

mΩ

MHz

Output ripple frequency

f_{SW_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

R_VC-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 < T_J< 125°C (T-Grade); All other specifications are at T_J= 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

P_NL

K

V_IN= 26 V to 50 V

W

V/V

V

K = V_OUT/ V_IN, I_OUT= 0 A

V_OUT= V_IN• K - I_OUT• R_OUT

Ouput voltage

V_OUT

Output current (average)

Output current (peak)

I_{OUT_AVG}

I_{OUT_PK}

25.0

37.5

A

t_PEAK< 10 ms, I_{OUT_AVG}≤ 25 A

V_IN= 36 V, I_OUT= 25 A

A

88.5

85.5

2.0

h_AMB

Efficiency (ambient)

%

V_IN= 26 V to 50 V, I_OUT= 25 A

T_C= -40°C, I_OUT= 25 A

T_C= 25°C, I_OUT= 25 A

Output resistance (cold)

Output resistance (ambient)

Output resistance (hot)

Switching frequency

R_{OUT_COLD}

R_{OUT_AMB}

R_{OUT_HOT}

f_SW

5.3

7.3

8.5

mΩ

4.5

10.0

12.0

1.80

3.60

T_C= 100°C, I_OUT= 25 A

5.0

8.0

mΩ

1.50

3.00

1.65

3.30

MHz

Output ripple frequency

f_{SW_RP}

MIL-HDBK-217 Plus Parts Count; 25°C Ground Benign,

Stationary, Indoors / Computer Profile

MTBF

4.5

MHrs

VC internal resistor

R_VC-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

V_{IM_NL}

V_{IM_50%}

V_{IM_FL}

A_IM

T_C= 25ºC, V_IN= 42 V, I_OUT= 0 A

T_C= 25ºC, V_IN= 42 V, I_OUT= 12.5 A

T_C= 25ºC, V_IN= 42 V, I_OUT= 25 A

T_C= 25ºC, V_IN= 42 V, I_OUT> 12.5 A

0.30

0.32

0.94

1.80

69

0.38

V

ANALOG

INPUT

Steady

V

mV/A

MΩ

IM resistance (external)

R_{IM_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 < T_J< 125°C (T-Grade); All other specifications are at T_J= 25ºC unless otherwise noted.

Attribute

Symbol

Conditions / Notes

Min

Typ

1/8

Max

5.6

Unit

MVTM36BH045M020A00

No load power dissipation

Transfer ratio

P_NL

K

V_IN= 26 V to 50 V

W

V/V

V

K = V_OUT/ V_IN, I_OUT= 0 A

V_OUT= V_IN• K - I_OUT• R_OUT

Ouput voltage

V_OUT

Output current (average)

Output current (peak)

I_{OUT_AVG}

I_{OUT_PK}

20

30

A

t_PEAK< 10 ms, I_{OUT_AVG}≤ 20 A

V_IN= 48 V, I_OUT= 20 A

A

91.0

89.5

5.0

92.9

h_AMB

Efficiency (ambient)

%

V_IN= 26 V to 55 V, I_OUT= 20 A

T_C= -40°C, I_OUT= 20 A

T_C= 25°C, I_OUT= 20 A

Output resistance (cold)

Output resistance (ambient)

Output resistance (hot)

Switching frequency

R_{OUT_COLD}

R_{OUT_AMB}

R_{OUT_HOT}

f_SW

8.2

13.0

15.0

18.0

1.63

3.26

mΩ

7.0

10.8

13.2

1.50

3.00

T_C= 100°C, I_OUT= 20 A

9.0

mΩ

1.37

2.74

MHz

Output ripple frequency

f_{SW_RP}

MIL-HDBK-217 Plus Parts Count; 25°C Ground Benign,

Stationary, Indoors / Computer Profile

MTBF

6.0

MHrs

VC internal resistor

R_VC-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

V_{IM_NL}

V_{IM_50%}

V_{IM_FL}

A_IM

T_C= 25ºC, V_IN= 48 V, I_OUT= 0 A

T_C= 25ºC, V_IN= 48 V, I_OUT= 10 A

T_C= 25ºC, V_IN= 48 V, I_OUT= 20 A

T_C= 25ºC, V_IN= 48 V, I_OUT> 10 A

0.27

0.33

1.0

0.37

V

ANALOG

INPUT

Steady

1.91

91

V

mV/A

MΩ

IM resistance (external)

R_{IM_EXT}

2.5

VTM™ Current Multiplier

Rev 1.4

Page 14 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 < T_J< 125°C (T-Grade); All other specifications are at T_J= 25ºC unless otherwise noted.

Attribute

Symbol

Conditions / Notes

Min

Typ

1/4

Max

5.2

Unit

MVTM36BH090M010A00

No load power dissipation

Transfer ratio

P_NL

K

V_IN= 26 V to 50 V

W

V/V

V

K = V_OUT/ V_IN, I_OUT= 0 A

V_OUT= V_IN• K - I_OUT• R_OUT

Ouput voltage

V_OUT

Output current (average)

Output current (peak)

I_{OUT_AVG}

I_{OUT_PK}

10

15

A

t_PEAK< 10 ms, I_{OUT_AVG}≤ 10 A

V_IN= 36 V, I_OUT= 10 A

A

92.0

90.0

20.0

28.0

35.0

1.60

3.20

93.6

h_AMB

Efficiency (ambient)

%

V_IN= 26 V to 50 V, I_OUT= 10 A

T_C= -40°C, I_OUT= 10 A

T_C= 25°C, I_OUT= 10 A

Output resistance (cold)

Output resistance (ambient)

Output resistance (hot)

Switching frequency

R_{OUT_COLD}

R_{OUT_AMB}

R_{OUT_HOT}

f_SW

27.0

36.2

44.4

1.75

3.50

35.0

45.0

55.0

1.90

3.80

mΩ

T_C= 100°C, I_OUT= 10 A

mΩ

MHz

Output ripple frequency

f_{SW_RP}

MIL-HDBK-217 Plus Parts Count; 25°C Ground Benign,

Stationary, Indoors / Computer Profile

MTBF

4.5

MHrs

VC internal resistor

R_VC-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

V_{IM_NL}

V_{IM_50%}

V_{IM_FL}

A_IM

T_C= 25ºC, V_IN= 48 V, I_OUT= 0 A

T_C= 25ºC, V_IN= 48 V, I_OUT= 5 A

T_C= 25ºC, V_IN= 48 V, I_OUT= 10 A

T_C= 25ºC, V_IN= 48 V, I_OUT> 5 A

0.28

0.35

0.90

1.68

156

0.42

V

ANALOG

INPUT

Steady

V

mV/A

MΩ

IM resistance (external)

R_{IM_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 < T_J< 125°C (T-Grade); All other specifications are at T_J= 25ºC unless otherwise noted.

VTM Control: VC

• Used to wake up powertrain circuit.

• A minimum of 12 V must be applied indefinitely for V_IN≤ 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 V_IN≥ 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

V_{VC_EXT}

16.5

V

below 26 V.

VC current draw threshold

V_{VC_TH}

Low VC current draw for Vin >26 V

VC = 13 V, V_IN= 0 V

13

Steady

150

VC current draw

I_VC

VC = 13 V, V_IN> 26 V

0

mA

ANALOG

INPUT

VC = 16.5 V, V_IN> 26 V

Required for proper startup

VC = 16.5 V, dVC/dt = 0.25 V/µs

VC slew rate

dVC/dt

I_{INR_VC}

0.02

0.25

750

V/µs

mA

Start Up

VC inrush current

V_INpre-applied, PC floating, VC

VC output turn-on delay

VC to PC delay

t_ON

500

25

µs

enable; C_PC= 0 µF, C_OUT= 4000 µF

Transitional

VC = 12 V to PC high, V_IN= 0 V,

dVC/dt = 0.25 V/µs

t_{VC_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

V_PC

5.0

5.3

2

V

mA

kΩ

µA

pF

kΩ

V

Steady

PC source current

I_{PC_OP}

PC resistance (internal)

PC source current

R_{PC_INT}

I_{PC_EN}

Internal pull down resistor

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

C_{PC_INT}

R_{PC_EXT}

V_{PC_EN}

V_{PC_DIS}

I_{PC_PD}

60

2

Enable

Disable

2.5

3

2

V

DIGITAL

INPUT / OUTPUT

5.1

mA

µs

t_{PC_DIS_T}

t_{FR_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 < T_J< 125°C (T-Grade); All other specifications are at T_J= 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

V_{TM_AMB}

I_TM

T_Jcontroller = 27°C

2.95

3.00

3.05

V

µA

ANALOG

OUTPUT

TM source current

TM gain

100

A_TM

10

0

mV/°C

V

Disable

TM voltage

V_{TM_DIS}

R_{TM_INT}

C_{TM_EXT}

t_{FR_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

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

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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 < T_J< 125°C (T-Grade); All other specifications are at T_J= 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]

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

T_J

-55

125

°C

Isothermal heat sink and isothermal

internal PCB

Thermal Resistance (Full VIC)

Φ_JC

1

°C/W

Isothermal heat sink and

isothermal internal PCB

Thermal Resistance (Half VIC)

Φ_JC

2.2

°C/W

°C

Assembly

Storage temperature

T_ST

-65

125

Human Body Model Component Level

ANSI/ESDA/JEDEC JS-001-2012,

Class 1C 1000 to <2000 V

ESD_HBM

1000

ESD withstand

V_DC

Field Induced Change Device Model

JESD22-C101E, Class II 200 to <500 V

ESD_CDM

200

VTM™ Current Multiplier

Rev 1.4

Page 19 of 31

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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 < T_J< 125°C (T-Grade); All other specifications are at T_J= 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

°C/s

6

Isolation voltage (hipot)

Isolation resistance

V_HIPOT

2250

10

V_DC

R_{IN_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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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 V_IN

.

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 V_{IM_NL}to V_{IM_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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MVTM36 Series

150 pH

I_I

R

OUT

L_IN= 1.7 nH

OUT

L_OUT= 600 pH

+

6.2 mΩ

R

R_COUT

330 µΩ

C_OUT

R

R_CCIN

Ω

350 m

6.3^INmΩ

V•I

K

1/12 • I_OUT

1/12 • V

IN

+

–

C

C_O_C_UT

C

^{900 nF}I

0.057 A

68 µF

IN

OUT

V

V_OUT

V

IQ

Q

OUT

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

V_OUT= V_IN• K

(1)

The relationship between V_INand V_OUTbecomes:

K represents the “turns ratio” of the SAC.

Rearranging Eq (1):

V_OUT= (V_IN– I_IN• R) • K

(5)

Substituting the simpliﬁed version of Eq. (4)

(I_Qis assumed = 0 A) into Eq. (5) yields:

K =

V_OUT

V_IN

(2)

V_OUT= V_IN• K – I_OUT• R • K²

(6)

In the presence of load, Vout is represented by:

This is similar in form to Eq. (3), where R_OUTis 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 K²with respect

to the output.

V_OUT= V_IN• K – I_OUT• R_OUT

(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.

I_OUT

=

I_IN– I_Q

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 V_IN

is added to the circuit. This is depicted in Figure 3.

R_OUTrepresents the impedance of the SAC, and is a function of the

R_DSONof 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 R_OUT= 0 Ω and I_Q= 0 A, Eq.

(3) now becomes Eq. (1) and is essentially load independent. A resistor

R is now placed in series with V_INas shown in Figure 2.

VTM™ Current Multiplier

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MVTM36 Series

Therefore,

P

_OUT= P_IN– P_DISSIPATED= P_IN– P_NL– P_ROUT

(11)

S

SAC

K = 1/32

The above relations can be combined to calculate the overall module

eﬃciency:

Vout

+

–

C

Vin

P_OUT

P_IN

=

P_IN– P_NL– P_ROUT

P_IN

h =

(12)

Figure 3 — Sine Amplitude Converter™ with input capacitor

V_IN• I_IN– P_NL– (I_OUT)²• R_OUT

V_IN• I_IN

=

A change in V_INwith the switch closed would result in a change in

capacitor current according to the following equation:

dVin

P_NL+ (I_OUT)2 • R_OUT

1 –

I_C(t)

=

C

(7)

=

(

)

dt

V_IN• I_IN

Assume that with the capacitor charged to V_IN, 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.

I_C

=

I_OUT• K

(8)

Substituting Eq. (1) and (8) into Eq. (7) reveals:

C

•

dV_OUT

dt

I_OUT

=

(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 K²scaling

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 (R_OUT): refers to the power loss across the VTM current

multiplier modeled as pure resistive impedance.

P_DISSIPATED

=

P_NL+ P_ROUT

(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 R_OUTvalue which has already

been discussed in the previous section. The AC R_OUTof 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.

Z_{IN_EQ1}

Z_{OUT_EQ1}

VTM^®1

R_{O_1}

V_IN

V_OUT

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.

Z_{IN_EQ2}

Z_{OUT_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

R_{O_2}

+

–

Load

DC

Z_{IN_EQn}

Z_{OUT_EQn}

VTM^®n

R_{O_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 V_OUT

V_IN• 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

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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

All other trademarks, product names, logos and brands are property of their respective owners.

VTM™ Current Multiplier

Rev 1.4

Page 31 of 31

10/2020


型号：	MVTM36BT015M080A00
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

MVTM36BT015M080A00 [VICOR]

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