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HK5S05B Datasheet Preview

HK5S05B Datasheet

DC/DC Converter

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DC/DC Converter
HK Series
Single output, specially designed for application of
intelligent passive transmitter
Patent Protection RoHS
FEATURES
z Applied to the loop to take power occasion
z High efficiency, Low power consumption
z Isolation voltage: 1K VDC
z Excellent temperature performance
z Natural air Cooled
z International standard pin-out
z Anti-flaming Packaging,UL94-V0 Compliant
HK series of products are mainly used in applications of two-wire signal and HART transmission, to solve a series of problems due to the
ground potential difference during the transmission application of them caused by different ground loops, such as, the signal transmission
errors around 4~20mA, followed by the interruption of HART communication or damage to equipment port device. HK series adopts the
loop way to take power, and compensates transmission errors caused by electric potential difference, so as to ensure the accuracy of the
communication transmission.
Selection Guide
Part No.
Input Voltage (VDC)
Nominal(Range)
HK3S03B
3.3
HK5S03B
5
HK5S05B
5
HK5S03BV
5
HK8S03B
7.5
HK8SX3B
7.5
HK8S05IB
7.5
Output
Output Voltage(VDC)
Output Current (mA)(Max.)
3.3 3.0
3.3 3.2
5 2.0
3.3 3.0
3.3 3.5
3 5.0
5 3.5
Max. Capacitive Load(μF)
10
Input Specifications
Item
Input Current (full load / no-load)
Surge Voltage (1sec. max.)
Reflected Ripple Current
Input Filter
Operating Conditions
3.3V input
5V input
7.5V input
3.3V input
5V input
7.5V input
HK5S03BV
Others
Min. Typ. Max.
-- 4-20/1 --
-- 3.5-22/1 --
-- 4-20/1 --
-- 4-20/1 --
-0.7 --
5
-0.7 --
9
-0.7 --
18
-- 15 --
Capacitor filter
Unit
mA
VDC
mA
Output Specifications
Item
Operating Conditions
Min. Typ. Max.
Line Regulation
HK8S05IB
Input voltage change: ±1%
Others
-- -- ±0.25
-- -- ±1.2
3VDC output
-- 15 --
Load Regulation
10%-100% load
3.3VDC output
HK5S05B
-- 15 --
-- 12 --
HK8S05IB
-- -- ±1.5
Ripple & Noise*
20MHz bandwidth
-- 30
--
Temperature Drift Coefficient 100% load
-- -- ±0.03
Note: * Ripple and noise tested with “parallel cable” method, please see DC-DC Converter Application Notes for specific operation methods.
Unit
%
--
%
mVp-p
%/
2014.08.18-A/4
Page 1 of 4
MORNSUN Guangzhou Science & Technology Co., Ltd. reserves the copyright and right of final interpretation




MORNSUN

HK5S05B Datasheet Preview

HK5S05B Datasheet

DC/DC Converter

No Preview Available !

DC/DC Converter
HK Series
General Specifications
Item
Isolation Voltage
Isolation Resistance
Operating Temperature
Storage Temperature
Casing Temperature Rise
Pin Welding Resistance Temperature
Storage Humidity
Switching Frequency
MTBF
Operating Conditions
Input-output, with the test time of 1 minute HK3S03B
and the leak current lower than 1mA
Others
Input-output, isolation voltage 500VDC
Derating if the temperature 85(see Fig. 1)
Ta=25
Welding spot is 1.5mm away from the casing, 10 seconds
Non-condensing
100% load, nominal input voltage
MIL-HDFK-217F@25
Min.
1500
1000
1000
-40
-50
--
--
--
--
3500
Typ.
--
--
--
--
--
25
--
--
100
--
Max.
--
--
--
85
125
--
300
95
300
--
Unit
VDC
M
%
KHz
K hours
Physical Specifications
Casing Material
Package Dimensions
Weight
Cooling Method
Plastic (UL94-V0)
Refer to Dimensions and Recommended Layout
HK5S03BV/Others
2.9g/2.1g (Typ.)
Free air convection
Product Characteristic Curve
Te mpe ratu re Derating C urve
120
100
80
60
Safe Operati ng Area
40
20
0
-40 0
40 85 105 120
Ambi ent Temperature()
Fig. 1
Design Reference
1. Ground Loop Problem In Signal Transmission And Ground Electric Potential Difference
There are many reasons causing ground loop problem in instrument circuit.When the signal transmission and receiving devices
connected to a different location or of different power supplies, it will lead to ground loop, and it is common in long cable transmission.
Most of the reason is that the equipment of the metal shell had physical contact with the ground. Ground loop produces electric circuit,
and form error sources.
Because the accuracy of the signal can not be measured through simple observation in the receiving end of the signal. the land
circulation for different ground potential will bring error that can't be detected to signal loop. There is also a signal error problem caused by
ground loop in the absence of two-wire signal isolation transmission. Signals like lightning signal and surge signal will load on the signal line
along with long wire, and damage modulation and detection devices on the port. In another case, two components of the different
potential port may lead to the port voltage exceeding, and damage the device port subsequently.
Signal transmission mode of non-isolated two-wire system
Tra n s d uc e r
3.3V
Vo l ta g e
regulator
Current
l oo p
DAC
4-20mA
24V
RL
PLC
ADC MCU
2.5V
Two wire instrument
Fig. 2
HART
modulator
2014.08.18-A/4
Page 2 of 4
MORNSUN Guangzhou Science & Technology Co., Ltd. reserves the copyright and right of final interpretation


Part Number HK5S05B
Description DC/DC Converter
Maker MORNSUN
Total Page 4 Pages
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