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hntf5s3r3 .pdf


Original filename: hntf5s3r3.pdf
Title: HNTF5S Non-isolated Miltary point of load DC DC converters
Author: ecrimpower.com

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HNTF5S Non-isolated Miltary point of load DC DC converters
1 Features military point of load DC-DC converter


High reliability



Low voltage input:4.5V~5.5V,Typical 5V



High conversion efficiency



Output Power PO:33W



Operating temperature Tc:-55℃~+125℃



Low start-up current

Weight:31g(without flange)



No output overshoot

HNTF5S3R3、



Inhibit function

HNTF5S3R3F



Output over current and short circuit protection



Maximum power density:63W/in3



Hermetically sealed metal case

Size:37.33×28.94×8.9(without
flange)
51.30×28.94×8.9(Flanged)

34g(Flanged)

2 Scope of application military point of load DC-DC converter
High-reliability electronic system for ground,vehicle,radar, aviation and aerospace,
etc

3 Description military point of load DC-DC converter
HNTF5S series is a high reliable, output voltage adjustable non-isolated Miltary
point of load DC DC converter with BUCK circuit topology and pulse width modulation
principle. The output sampling voltage is directly feedbacked to modulate the pulse
width to achieve closed-loop control to meet the stability of the voltage output
requirements. The series of products are made by thick-film hybrid integrated
production process, metal sealed package. The design and manufacturing process of
HNTF5S Series converters are in compliance with MIL-PRF-38534.

4 Technical Specifications military point of load DC-DC converte
r
Table 2 Rated conditions and recommended operating conditions
Absolute Max. Rating

Web :www.ecrimpower.com E-mail: sales@ecrim.cn

Phone: +86 551-63667943 Fax: +86 551-65743191

-1-

Input voltage:4.5V~5.5V
Input voltage(Transient,1s):6V
Output Power:36.3W
Storage temperature:-65℃~150℃

Mechanical Shock:1500g
Lead solderable temperature:300℃(15s)
Weight(Without flange/flanged):31g/34g

Table 3 Electrical characteristics
NO
.

Items

1

Input voltage /V

2

Output voltage /V

3

Output current /A

4

Output power /W

5

Output ripple voltage /mV

6

Voltage regulation /mV

7

Load regulation /mV

8

Efficiency /%

9

Insulation resistance/MΩ

10

Inhibit shut-down voltage /V

11

Start-up Overshoot(peak)/mV

12

Start-up Delay /ms

Conditions
(Unless other wise,
-55℃≤Tc≤125℃,
VIN=5V±0.15V)
Low、high and room
temperature
Room
temperature
Full load
Low and High
temperature
VIN=4.5V~5.5V

BW=6MHz,Full load
Room
temperature
Low and High
temperature
Room
temperature
0→full load
Low and High
temperature
Room
temperature
Full load
Low and High
temperature
TA=25℃,impose 500V DC
voltage between case and any
pin

VIN=4.5V

5.5V,Full load

Full load
Input voltage VIN:0→5V,Full
load
Input voltage VIN:0→5V,Full
load

HNTF5S3R3
HNTF5S3R3F
Min

Max

4.5

5.5

3.1

3.5

2.9

3.7



10

0

33



35



30



80



50



100

88



86



100



0

0.2



500



100

5 Circuit block diagram military point of load DC-DC converter

Web :www.ecrimpower.com E-mail: sales@ecrim.cn

Phone: +86 551-63667943 Fax: +86 551-65743191

-2-

Fig 2 HNTF5S Circuit block diagram

6 Typical Characteristic Curve military point of load DC-DC con
verter (Unless otherwise specified,Testing condition as per Tc=25℃,
VIN=5V±0.15V, Vo=3.3V,full load.)

Fig 3 HNTF5S3R3 Efficiency

Fig 4 HNTF5S3R3 Load

Web :www.ecrimpower.com E-mail: sales@ecrim.cn

Phone: +86 551-63667943 Fax: +86 551-65743191

-3-

Fig 5 HNTF5S3R3 Overshoot/Start-up Delay

7 MTBF Curve military point of load DC-DC converter

Fig 6 MTBF Temperature Curve(HNTF5S3R3)
(Ground good condition is expected)

8 Pin Designations military point of load DC-DC converter

Web :www.ecrimpower.com E-mail: sales@ecrim.cn

Phone: +86 551-63667943 Fax: +86 551-65743191

-4-

Figure 7 Bottom View

Pin

Symbol

1
2
3

INH
V0
GND

4

NC

Table 4 Pin Designation
Designation
Pin
Inhibit
Outptu
Common
Ground
NC

Symbol

Designation

5
6
7

NC
GNDC
GND

NC
Case ground
Common Ground

8

VIN

Positive input

9 Typical Connection Diagram military point of load DC-DC con
verter

Fig 8 Connection Diagram

Web :www.ecrimpower.com E-mail: sales@ecrim.cn

Phone: +86 551-63667943 Fax: +86 551-65743191

-5-

Fig 9 Inhibit drive circuit

10.Package Specifications military point of load DC-DC converter
① Without flange

Fig 10 Bottom View

Fig 11 Side View

② With flange

Web :www.ecrimpower.com E-mail: sales@ecrim.cn

Phone: +86 551-63667943 Fax: +86 551-65743191

-6-

Fig 12

Bottom View

Fig 13 Side View

Table 5

Symbols

1.20
0.87
-

Header
Plating

Cover

UPP3728-08b

Steel

Ni

Kovar
(4J42)

Cover
Plating

Ni

Cold
UPP3728-08e

Steel

Ni

Kovar
(4J42)

(10#)

51.30
44.45
3.60
-

Pin

Pin
Plating

Copper

(10#)

Rolled

8.90
1.80
1.13
28.94
37.33
-

Case Materials

Cold
Rolled

Maximum

1.50
1.00
20.32
5.21
12.83
17.91
22.99
28.07
43.95
3.30
-

43.45
3.00
5.35
Table 6

Header

Unit/mm
Nominal

Minimum

A
A1
φb
D
E
e
e1
e2
e3
e4
e5
X
X1
P
L

Case Model

Package Outline

Ni

–core

Sealing
Parallel

Au

seam

Compound

welding

Copper

Parallel

–core
Compound

Notes

Au

seam
welding

11 Ordering Information military point of load DC-DC converter
Web :www.ecrimpower.com E-mail: sales@ecrim.cn

Phone: +86 551-63667943 Fax: +86 551-65743191

-7-

Fig 14

Part Numbering Key

Application Notes military point of load DC-DC converter:


Both positive and negative terminals for power supply shall be correctly connected when

power is applied so as to avoid permanent damage to the device.


Eletrical performance test, the common use of pin 7, pin 3 only as a test useful.



Testing position shall be the root of the pin of the device when the electrical characteristic is
measured.



The baseplate of the device shall be closely attached to the circuit board during device
mounting so as to avoid the damage on pins. The shockproof actions shall be adopted when
necessary.



Pins shall not be bended to avoid the glass insulator cracking and case leaking.



Pins at inhibit terminal shall be hung in the air during no operation.



When ordering this device , the detail electrical specification shall be based on relevant

standards. While data offered in this document shall be for reference only.
Web :www.ecrimpower.com E-mail: sales@ecrim.cn

Phone: +86 551-63667943 Fax: +86 551-65743191

-8-


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