V375A24H150A datasheet, PDF - EEWORLD Datasheet

45

Features

•

375Vin / 24Vout / 150Watts

DC-DC Converter Module

Model Number V375C24C150A*

DC input range: 250 - 425V

Input surge withstand: 500V for 100ms

DC output: 24V

Programmable output: 10 to 110%

Regulation: ±0.2% no load to full load

Efficiency: 86%

Maximum operating temperature:

100°C at full load

Power density: 91W/cubic inch

Height above board: 0.43 in. (10,9 mm)

Parallelable, with N+M fault tolerance

Low noise ZCS/ZVS architecture

Typical Applications:

distributed power;

off-line systems using power PFC front-ends;

electric vehicles

Shown actual size:

2.28 x 1.45 x 0.5 in

57,9 x 36,8 x 12,7 mm

Product Overview

This DC-DC converter module uses

2nd Generation power processing, control

and packaging technologies to provide the

performance, flexibility and cost effectiveness

expected of a mature power component.

For example, a plated-cavity core transformer

couples widely separated primary and

secondary windings, resulting in low in-to-

out parasitic capacitance and noise.

High frequency ZCS/ZVS switching,

advanced power semiconductor packaging

and thermal management provide high

power density with low temperature

gradients. Extensive use of silicon

integration results in 1/3 the part count

of a 1st Generation converter.

Absolute Maximum Ratings

Parameter

+In to –In voltage

PC to –In voltage

PR to –In voltage

+Out to –Out voltage

SC to –Out voltage

Isolation voltage (in to out)

Isolation voltage (in to base)

Isolation voltage (out to base)

Storage temperature (C–Grade)

Operating temperature (C–Grade)

Pin soldering temperature

Mounting torque

Style

Base-

plate

Rating

-0.5 to +425.0

500

-0.5 to +7.0

-0.5 to +31.7

-0.5 to +1.5

3000

1550

500

-40 to +125

-20 to +100

500 (260)

750 (390)

5 (0.57)

Unit

Vdc

Vrms

°C

°F (°C)

in-lbs (N-m)

Notes

<100ms

See part numbering chart on this

page for other product grades.

Baseplate

<5 sec; wave solder

<7 sec; hand solder

6 each, # 4-40 or M3

* Part Numbering

V 375 C 12 C 150 A

Input Voltage

24 = 24Vin

48 = 48Vin

300 = 300Vin

375 = 375Vin

A = Maxi

B = Mini

C = Micro

Output

Voltage

Output

Power

Product Grade Temperatures (°C)

Grade

Storage

Operating

C = - 40 to +125 - 20 to +100

T = - 40 to +125 - 40 to +100

H = - 55 to +125 - 40 to +100

M = - 65 to +125 - 55 to +100

Thermal Resistance and Capacity

Parameter

Baseplate to sink; flat, greased surface

Baseplate to sink; thermal pad (P/N 20265)

Baseplate to ambient

Baseplate to ambient; 1000 LFM

Thermal capacity

Min

Typ

0.24

0.21

10.9

2.8

48

Max

Unit

°C/Watt

Watt-sec/°C

For pin styles see page 6. Slotted baseplate

(style 1) requires no designator. For

threaded baseplate add a “2” to the end of

the part number. For thru-hole, add a “3”.

See page 7 for dimensions.

Vicor Corp.

Tel: 800-735-6200, 978-470-2900 Fax: 978-475-6715

V375V24V150A DC-DC Converter

Rev. 5.2

Page 1 of 8

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ELECTRICAL CHARACTERISTICS

Electrical characteristics apply over the full operating range of input voltage, output load (resistive) and baseplate temperature,

unless otherwise specified. All temperatures refer to the operating temperature at the center of the baseplate.

MODULE OPERATING SPECIFICATIONS

Parameter

Operating input voltage

Input surge withstand

Output voltage setpoint

Output OVP setpoint

Output power

Efficiency

85

86

23.76

27.1

24.00

28.1

Min

250

Typ

375

Max

425

500

24.24

29.1

150

Unit

Vdc

Watts

%

<100ms

Nominal input; full load; 25°C

25°C; recycle input voltage to restart ( 1 minute off )

At 100°C baseplate temperature

Nominal input; 75% of full load; 25°C

Notes

MODULE INPUT SPECIFICATIONS

Parameter

Undervoltage turn-on

Undervoltage turn-off

Overvoltage turn-off/on

Dissipation, standby

204.7

429.2

Min

Typ

242.5

212.2

446.3

5.4

467.5

8.1

Max

247.5

Unit

Vdc

Watts

No load

Notes

MODULE OUTPUT SPECIFICATIONS

Parameter

Line regulation

Load regulation

Temperature regulation

Ripple and noise, p-p

Current limit

Short circuit current

Power sharing accuracy

Programming range

10

6.37

4.37

Min

Typ

±0.02

±0.06

±0.002

135

7.19

±2

Max

±0.20

±0.005

169

8.13

±5

110

Unit

%

% / °C

mV

Amps

%

Notes

Low line to high line; full load

No load to full load; nominal input

Over operating temperature range

Nominal input; full load; 20 MHz bandwidth

Output voltage 95% of nominal

Output voltage <250mV

10 to 100% of full load

Of nominal output voltage. For trimming below 90%

of nominal, a minimum load of 10% of maximum

rated power may be required.

Note:

For important information relative to applications where the converter modules are subject to continuous dynamic loading,

contact Vicor applications engineering at 800-927-9474.

MODULE MECHANICAL SPECIFICATIONS

Slotted baseplate (style 1) requires no designator.

For threaded baseplate add a "2" to the end of the

part number. For thru-hole add a "3".

For long pin configuration add “L” to the end of the

part number.

See page 7 for pin dimensions.

Baseplate

Slotted (Style 1)

Pin style

Short (Style 1)

Vicor Corp.

Tel: 800-735-6200, 978-470-2900 Fax: 978-475-6715

V375C24C150A DC-DC Converter

Rev. 5.2

Page 2 of 8

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ELECTRICAL CHARACTERISTICS, continued

MODULE CONTROL SPECIFICATIONS

Parameter

Min

Typ

Max

Unit

Notes

PRIMARY SIDE

(PC = Primary Control; PR = Parallel)

PC bias voltage

current limit

PC module disable

PC module enable delay

PC module alarm

PR emitter amplitude

PR emitter current

PR receiver impedance

PR receiver threshold

PR drive capability

SECONDARY SIDE

(SC = Secondary Control)

SC bandgap voltage

SC resistance

SC capacitance

SC module alarm

1.21

990

1.23

1000

0.033

0

1.25

1010

Vdc

ohms

µF

Vdc

With open trim; referenced to –Out. See Fig. 6

Referenced to –Out

5.7

150

375

2.4

500

2.5

625

2.6

12

5.9

5.50

1.5

2.3

5.75

2.1

2.6

4

6.10

3.0

2.9

7

0.5

6.1

Vdc

mA

Vdc

ms

Vavg

Volts

mA

ohms

Volts

modules

25°C

Minimum pulse width: 20ns

Without PR buffer amplifier

UV, OV, OT, module fault. See Figs. 2 and 4

PR load >30 ohms, < 30 pF

PC current = 1.0 mA

PC voltage = 5.5V

Must be able to sink

≥4

mA. See Fig. 1

MODULE GENERAL SPECIFICATIONS

Parameter

Isolation voltage (in to out)

Isolation voltage (in to base)

Isolation voltage (out to base)

Isolation resistance (in to out)

Weight

Temperature limiting

Agency approvals

100

Min

3000

1550

500

10

2.1 (60)

115

2.3(66)

Typ

Max

Unit

Vrms

megohms

ounces (grams)

°C

See Figs. 2 and 4

UL1950, CSA950, EN60950, VDE0805, BS7002,

IEC 60950. With a fuse in series with the +Input

Notes

Complies with reinforced insulation requirements

Complies with basic insulation requirements

Complies with operational insulation requirements

UL, CSA, TÜV, BABT, CE, VDE

Vicor Corp.

Tel: 800-735-6200, 978-470-2900 Fax: 978-475-6715

V375V24V150A DC-DC Converter

Rev. 5.2

Page 3 of 8

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CONTROL FUNCTIONS - PC PIN

Module Enable/Disable

The module may be disabled by pulling PC below 2.3V with

respect to the –Input. This may be done with an open collector

transistor, relay, or optocoupler. Multiple converters may be

disabled with a single transistor or relay either directly or via

“OR’ing” diodes. See Figure 1.

Primary Auxiliary Supply

At 5.7V, PC can source up to 1.5mA. In the example shown in

Figure 3, PC powers a “green” module enabled LED.

Module Alarm

The module contains “watchdog” circuitry which monitors

input voltage, operating temperature and internal operating

parameters. In the event that any of these parameters are

outside of their allowable operating range, the module will shut

down and PC will go low. PC will periodically go high and the

module will check to see if the fault (as an example,

overtemperature) has cleared. If the fault has not been cleared,

PC will go low again and the cycle will restart. The SC pin will

go low in the event of a fault and return to its normal state after

the fault has been cleared. See Figures 2 and 4.

+In

PC

+In

Auto

Restart

Input Undervoltage

Input Overvoltage

Over Temperature

Module Faults

+Out

PC

PR

SW1

50Ω

2-20ms typ.

f(V

IN

)

SW2

5.7Vdc

(0-3mA)

SW3

1K

SC

Disable

PR

–In

6K

1.23

Vdc

–In

SW1, 2, & 3 shown

in "Fault" position

–Out

Disable = PC <2.3V

Figure 1—Module

enable/disable.

Figure 2—PC/SC

module alarm logic.

+In

PC

"Module

Enabled"

4kΩ

Fault

PC

5.7V

40µs typ.

PR

–In

SC

1.23V

2-20ms typ.

Figure 3—LED

on-state indicator.

Figure 4—PC/SC

module alarm timing.

Optocoupler

+In

PC

+Out

SC

4kΩ

PR

–In

Alarm

1.00V

–Out

Figure 5—Isolated

on-state indicator.

Vicor Corp.

Tel: 800-735-6200, 978-470-2900 Fax: 978-475-6715

Figure 6—Secondary

side on-state indicator.

V375C24C150A DC-DC Converter

Rev. 5.2

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CONTROL FUNCTIONS - SC PIN

Output Voltage Programming

The output voltage of the converter can be adjusted or

programmed via fixed resistors, potentiometers or voltage

DACs. See Figures 7 and 8.

+Out

R

U

Trim Up

Error

Amp

1kΩ

0.033µF

SC

R

D

Trim Down

Load

Error

Amp

1kΩ

0.033µF

SC

Load

–Out

1.23V

–Out

R

D

(ohms) =

1,000 Vout

Vnom - Vout

R

U

(ohms) =

1,000

(Vout-1.23)

Vnom

1.23

(Vout-Vnom)

–1,000

Figure 7—Output

voltage trim down circuit.

Trim Down

1. This converter is not a constant power device – it has a

constant current limit. Hence, available output power is

reduced by the same percentage that output voltage is

trimmed down. Do not exceed maximum rated output current.

2. The trim down resistor must be connected to the –Out pin.

Figure 8—Output

voltage trim up circuit.

Trim Up

1. The converter is rated for a maximum delivered power. To ensure

that maximum rated power is not exceeded, reduce maximum

output current by the same percentage increase in output voltage.

2. The trim up resistor must be connected to the +Out pin.

3. Do not trim the converter above maximum trim range

(typically +10%) or the output over voltage

protection circuitry may be activated.

Trim resistor values calculated automatically:

On-line calculators for trim resistor values are available

on the vicor website at: vicorpower.com/tools.html.

Resistor values can be calculated for fixed trim up, fixed

trim down and for variable trim up or down cases for both

1st and 2nd Generation DC-DC converters.

In addition to trimming information, the web site and the

Applications Manual also include design tips, applications

circuits, EMC suggestions, thermal design guidelines and

PDF data sheets for all available Vicor products.

Vicor Corp.

Tel: 800-735-6200, 978-470-2900 Fax: 978-475-6715

V375V24V150A DC-DC Converter

Rev. 5.2

Page 5 of 8

Set your site on VICOR at www.vicorpower.com

V375A24H150A

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