DVTR2812S中文资料

VPT Inc.

2801 Commerce Street

Blacksburg, VA 24060

Sales Info: (425) 337-2482 FAX: (603) 297-1160

WEB: https://www.wendangku.net/doc/4210603720.html,

E-mail: mbosmann@https://www.wendangku.net/doc/4210603720.html,

Description

The DVTR series of hybrid DC to DC converters is able

to operate at the full military (-55 °C to +125 °C) temperature range with no power derating. Unique to

the DVTR series is a PATENTED magnetic feedback

circuit that is fault tolerant and radiation immune. Operating at a nominal fixed frequency of 450kHz the regulated, isolated units utilize well controlled

undervoltage lock out circuitry to eliminate slow start-up problems.

Block Diagram DVTR2800S BLOCK

DIAGRAM

Specifications

Absolute Maximum Ratings

Input Voltage (Continuous) 50 Vdc Input Voltage (Transient) 80 V (1sec) Output Power 1

40 Watts Power Dissipation, Full Load, T CASE = +125°C 13 Watts Junction Temperature rise to case +15°C Storage Temperature

-65°C to +150°C Lead Solder Temperature for 10 seconds 270°C Weight

50 grams

Tcase = -55°C to +125°C, Vin = +28V ±5%, Full Load unless otherwise specified

DVTR283R3S DVTR2805S DVTR2812S

Parameter Conditions -55°C ≤TC ≤125°C,

VIN = 28 VDC ±5%, Full Load

Unless otherwise specified Min Typ Max Min Typ Max Min Typ Max Units Static

INPUT

Voltage 15 28 50 15 28 50 15 28 50 V Current 3

Inhibited No Load 3.5 40 5 65 3.5 40 5 65 3.5 40 5

65

mA mA Ripple Current Full Load, 20Hz to 10MHz 30 50 30 50 30 50 mA P-P Inhibit Pin Input 0 1.5 0 1.5 0 1.5 V Inhibit Pin Open Circuit Voltage 9.0 11.0 13.0 9.0 11.0 13.0 9.0 11.0 13.0 V UVLO Turn On 11.5 15.0 11.5 15.0 11.5 15.0 V UVLO Turn Off 11.0 14.5 11.0 14.5 11.0 14.5 V OUTPUT Voltage V OUT V OUT Tcase = 25°

C -55°C ≤ Tcase ≤ +125°C

3.27 3.20 3.30 3.30 3.33 3.40

4.95 4.85

5.00 5.00 5.05 5.15 11.88 11.64 12.0 12.0 12.12 12.36 V V Power 0 20 0 30 40 W Current V OUT 0

6.0 0 6.0 0 3.33 A Ripple Voltage V OUT Full Load, 20Hz to 10MHz 10 30 10 30 0 15 40 mV P-P Line Regulation V OUT V IN = 15V to 50V 10 25 10 25 10 25 mV Load Regulation V OUT No Load to Full Load 30 60 30 60 30 60 mV EFFICIENCY 64 69 71 75 78 82 % LOAD FAULT POWER DISSIPATION

Overload Short Circuit 20 15 20 15 20

15 W W CAPACITIVE LOAD 1000 1000 500 μF SWITCHING FREQUENCY 400 450 525 400 450 525 400 450 525 kHz SYNC FREQUENCY RANGE V H -V L =5V Duty Cycle: 20%-80% 500 700 500 700 500 700 KHz ISOLATION 100 100 100 M ? THERMAL RESISTANCE Case to Ambient (θCA) 19 19 19

°C/W MTBF MIL-HDBK-217F, AIF @

Tc=55°C 413 413 413

kHrs Dynamic

LOAD STEP Output Transient Recovery 2 V OUT Half Load to Full Load 300 200 500 400 300 200 500 400 400 200 600

400

mV PK μSec LINE STEP Output Transient Recovery 2 V OUT V IN = 15V to 50V 300 200 500 400 300 200 500 400 400 200 600

400

mV PK μSec TURN ON Delay Overshoot 2 V OUT V IN = 0V to 28V 10 0 15 33 10 0 15 50 10 0 15 120

mSec mV PK

NOTES: 1. Dependent on output voltage. 2. Time for output voltage to settle within 1% of its nominal value. 3. Derate linearly to 0 at 135°C.

Specifications

Absolute Maximum Ratings

Input Voltage (Continuous) 50 Vdc Input Voltage (Transient) 80 V (1sec) Output Power 1

40 Watts Power Dissipation, Full Load, T CASE = +125°C 13 Watts Junction Temperature rise to case +15°C Storage Temperature

-65°C to +150°C Lead Solder Temperature for 10 seconds 270°C Weight

50 grams

Tcase = -55°C to +125°C, Vin = +28V ±5%, Full Load unless otherwise specified

DVTR2815S

Parameter Conditions

-55°C ≤TC ≤125°C,

VIN = 28 VDC ±5%, Full Load1

Unless otherwise specified Min Typ Max Units

Static

INPUT

Voltage 15 28 50 V Current 3

Inhibited No Load 3.5 40 5

65

mA mA Ripple Current Full Load, 20Hz to 10MHz 30 50 mAp-p Inhibit Pin Input 0 1.50 V Inhibit Pin Open Circuit Voltage 9.0 11.0 13.0 V UVLO Turn On 11.5 15.0 V UVLO Turn Off 11.0 14.5 V OUTPUT Voltage V OUT V OUT T CASE = 25°C -55°C ≤ T CASE ≤ +125°C

14.85 14.55 15.0 15.0 15.15

15.45 V V Power 0 40 W Current V OUT 0 2.67 A Ripple Voltage V OUT Full Load, 20Hz to 10MHz 15 40 mV P-P Line Regulation V OUT Vin = 15V to 50V 10 25 mV Load Regulation V OUT No Load to Full Load 30 60 mV EFFICIENCY 81 85 % LOAD FAULT POWER DISSIPATION Overload Short Circuit

20

15 W W CAPACITIVE LOAD 500 μF SWITCHING FREQUENCY 400 450 525 kHz SYNC FREQUENCY RANGE V H -V L =5V Duty Cycle: 20%-80% 500 700 kHz ISOLATION 100 M ? THERMAL RESISTANCE Case to Ambient (θCA) 19

°C/W MTBF MIL-HDBK-217F, AIF @

Tc=55°C 413

kHrs Dynamic

LOAD STEP Output Transient Recovery 2

V OUT Half Load to Full Load 400 200

600

400

mV PK μSec

LINE STEP Output Transient Recovery 2

V OUT Vin = 15V to 50V 400 200

600

400

mV PK μSec

TURN ON Delay Overshoot 2 V OUT Vin = 0V to 28V 10 0 15 150

mSec mV PK

NOTES: 1. Dependent on output voltage. 2. Time for output voltage to settle within 1% of its nominal value. 3. Derate linearly to 0 at 135°C.

DVTR2800S Without EMI filter

Figure 1

DVTR2800S With EMI filter

Figure 2

Ordering Information

Example Part Number: DVTR2805DR/ES

DVTR 28 05 S F R /ES

Product Series Nominal Input

Voltage Output Voltage No. Outputs Package Style Rad Hard Opt. Screening

DVTR 28 28 Volts 03R3 3.3 Volts S Single None No Flange None Standard None Standard

05 5 Volts F Flanged R 100kRad /ES Extended

12 12 Volts /HB HB Screening

15 15 Volts

Last Revised 6/26/00