Crystek K78U15-500 Wide input non-isolated & regulated single output Datasheet

K78UXX-500(L) Series
RoHS
WIDE INPUT NON-ISOLATED & REGULATED
SINGLE OUTPUT
PRODUCT PROGRAM
FEATURES
Input Voltage(VDC)
● Efficiency up to 95%
Part Number
● Ultra wide input voltage range can up to 8:1
● Operating temperature: -40°C ~ +85°C
● Pin-out compatible with LM78XX Linear
● Short circuit protection, thermal shutdown
Nominal
Output
Voltage
Range
(VDC)
Efficiency(%)(typ.)
Current(mA)
Min.
Max.
Vin
Vin
(Min.)
(Max.)
K78U03-500(L)
9.0~72.0
3.3
10
500
82
75
K78U05-500(L)
9.0~72.0
5.0
10
500
87
81
84
● Low ripple and noise
K78UX6-500(L)
● Micro miniature SIP package, meet UL94-V0
K78U09-500(L)
9.0~72.0
6.5
10
500
91
14.0~72.0
9.0
10
500
92
86
K78U12-500(L)
17.0~72.0
12.0
10
500
93
89
● No heatsink required
K78U15-500(L)
20.0~72.0
15.0
10
500
94
90
● Industry standard pinout
K78U24-300(L)
36.0~72.0
24.0
6
300
95
91
requirement
48
Note: Add suffix “L” for 90° bend pins, for example: K78U05-500L.
● MTBE>2,000,000Hours
OUTPUT SPECIFICATIONS
Item
Test conditions
Min.
Typ.
Max.
Units
±2
±3
Line regulation
Vin=min. to max. at full load
±0.4
±1.0
Load regulation*
From 10% to 100% Load
±0.3
±0.6
Ripple& Noise
20MHz bandwidth ,from 10% to 100%
Load (refer to figure 2 )
20
60
mVp-p
0.72
1.2
W
Output voltage accuracy 100% full load
%
APPLICATIONS
The K78UXX-500(L)
series
high
efficiency
Short circuit input power Vin=Nominal
switching regulators are ideally suited to replace
Short circuit protection
LM78xx linear regulators and are pin compatible. It
Thermal shutdown
has ultra wide input voltage range ,the efficiency of
Switching frequency
100% full load
up to 95% means that very little energy is wasted
Output current limit
Vin=Nominal
as heat so there is no need for any heatsinks with
Quiescent current
Vin=Nominal , Min. Load
their additional space and mounting costs.
Temperature coefficient -40°C ~ +85°C ambient
Tendencies load
Continuous, automatic
120
800
700
1200
1
5
From 10% to 100% Load
MODEL SELECTION
Note: ”GND” Pin can not vacant, or it will damage the module.
K78U05-500
COMMON SPECIFICATIONS
Output Voltage
Ultra Wide Input Voltage
Pr oduct Ser ies
Item
Test conditions
1.0
Min.
Power derating (above 71°C)
-40
65
Storage temperature
-55
Address: No. 5, Kehui St. 1, Kehui development
center, Science Ave., Guangzhou Science City,
Luogang district, Guangzhou,P.R.China.
Tel: 86-20-28203030
Fax:86-20-28203068
Http://www.mornsun-power.com
1.5
ms
100
μF
Max.
Units
95
%
100
°C
300
Plastic (UL94-V0)
25℃(MIL-HDBK-217F)
3500
71℃(MIL-HDBK-217F)
1500
Hop swap
k hours
Not supported
Thermal resistance
EMI conducted
mV
Free Air Convection
Case material
MTBF
±100
125
1.5mm from case for 10 seconds
Cooling
mA
85
Operating case temp.
Lead temperature
MORNSUN Science & Technology Co.,Ltd.
Typ.
Storage humidity
Operating temperature
kHz
±0.015 %/°C
Max capacitance load
Output Cur rent
°C
160
60
Refer to figure 5
EN55022, CLASS B
RFI conducted
Electrostatic discharge
IEC/EN 61000-4-2 level 4
Safety approvals
EN-60950-1 standards
Weight
The copyright and authority for the interpretation of the products are reserved by MORNSUN
°C/W
4
Specifications subject to change without notice.
K78UXX-500(L)
A/1-2011
Page 1 of 4
g
TYPICAL CHARECTERISTICS
TYPICAL APPLICATION CIRCUIT
Temperature Derating Graph
1
+Vin
K78UXX-500(L)
3
+Vout
2
C1
GND
GND
(figure 2)
Note:
1. The regulator proposed to establish the input voltage by soft-start, no
plug and play, if the input voltage changes from low voltage to high voltage
abruptly, the regulator might be damaged.
2. If the applications is high-voltage input, the regulator must add an
external capacitor C1(≤47μF/100V),to prevent voltage spikes caused by
damage to the module.
3. No parallel connection.
Operating Temp.( C )
(figure 1)
APPLICATION EXAMPLE
MODULES PROTECT RECOMMENDED CIRCUIT
High voltage input, Multiple Outputs, with greater load
Reverse protection
1
+Vin
C1
K78U12-500(L)
3
+12V/100mA
2
K7805-1000(L)
K78 UXX-500(L )
3
+Vout
2
+5V/850mA
C2
1 0 μF
GND
1
+Vin
GND
GND
GND
(figure 3)
1
+Vin
Note:
1. the input current amount of the back-grade regulator and the pre-class load should
be less than or equal the max load current of the pre-class regulator.
2. If further filtering is required, please add components as per the above circuit(We
recommend not to add components), if request, please make sure the capacitors C1
≤47μF,C2≤10μF more close to the back-grade regulator.
K78 UXX-50 0(L)
2
3
Schottky Diode
Vout=
+Vout0.3V
GND
GND
(figure4)
EMC RECOMMENDED CIRCUIT
0.5mH-2mH
1
+Vin
+Vo ut
Vin
3
GND
2
270μ F-470μF
1.0μF-3.3μ F
RL
0.68μF-2.2μ F
GND
0.5mH-2mH
(figure 5)
TEST CONFIGURATIONS (TA=25°C)
1、FULL LOAD OUTPUT RIPPLE & NOISE MEASURED GRAPH
2、LOAD TRANSIENT RESPONSE WAVEFORM
(figure 6)
The copyright and authority for the interpretation of the products are reserved by MORNSUN
(figure 7)
Specifications subject to change without notice.
K78UXX-500(L)
A/1-2011
Page 2 of 4
CHARACTERISTICS CURVE
Efficiency
Ripple
Efficiency VS Input Voltage curve
(full load)
Ripple VS Load curve(Vin=Vmax)
100
30
95
K78U03-500
K78U05-500
K78UX6-500
K78U09-500
K78U12-500
K78U15-500
K78U24-300
85
80
75
70
65
60
25
Ripple(mV)
Efficiency(%)
90
K78U03-500
K78U05-500
K78UX6-500
K78U09-500
K78U12-500
K78U15-500
K78U24-300
20
15
10
5
55
50
0
9
15 21 27 33 39 45 51 57 63 69 72
0
10
20
30
Input Voltage(V)
Efficiency
40
50
60
70
80
90 100
Load(%)
VS Load curve(Vin=Vin-nominal)
Ripple VS Load curve(Vin=Vin-nominal)
100
30
95
K78U03-500
K78U05-500
K78UX6-500
K78U09-500
K78U12-500
K78U15-500
K78U24-300
85
80
75
70
65
25
Ripple(mV)
Efficiency(%)
90
K78U03-500
K78U05-500
K78UX6-500
K78U09-500
K78U12-500
K78U15-500
K78U24-300
20
15
10
60
5
55
50
10
20
30
40
50
60
70
80
90
0
100
0
10
20
30
Load(%)
50
60
70
80
90 100
Load(%)
Ripple VS Load curve(Vin=Vmin)
Efficiency VS Load curve(Vin=Vmin)
100
95
30
90
85
K78U03-500
K78U05-500
K78UX6-500
K78U09-500
K78U12-500
K78U15-500
K78U24-300
80
75
70
65
60
55
50
25
Ripple(mV)
Efficiency(%)
40
K78U03-500
K78U05-500
K78UX6-500
K78U09-500
K78U12-500
K78U15-500
K78U24-300
20
15
10
5
10
20
30
40
50
60
70
80
90 100
0
0
10
Load(%)
The copyright and authority for the interpretation of the products are reserved by MORNSUN
20
30
40
50
60
70
80
90 100
Load(%)
Specifications subject to change without notice.
K78UXX-500(L)
A/1-2011
Page 3 of 4
OUTLINE DIMENSIONS & FOOTPRINT DETAILS
MECHANICAL DIMENSIONS
RECOMMENDED FOOTPRINT
K78UXX-500
K78UXX-500
5.08 [0.200]
1.10 [0.043]
9.00 [0.354]
0.50 [0.020]
3
2.54 [0.100]
K78UXX-500L
5.08 [0.200]
17.50 [0.689]
2
2.54 [0.100]
1
2.15 [0.085]
11.50[0.453]
4.10 [0.161]
1.35 [0.053]
5.08 [0.200]
( Bottom View)
1 2
0.50 [0.020]
3
1.10 [0.043]
FOOTPRINT DETAILS
0.55 [0.022]
pin
Function
1
+Vin
Note :
Unit: mm[inch]
Pin section tolerances: ± 0.10mm[±0.004inch]
General tolerances : ±0.25mm[±0.010inch]
2
GND
3
+Vout
TUBE OUTLINE DIMENSIONS
K78UXX-500L
11.50[0.453]
K78UXX-500L
K78UXX-500
9.00 [0.354]
11.60 [0.457]
5.08 [0.200]
2.15 [0.085]
( Bottom View)
20.60 [0.811]
5.20 [0.205]
1.50 [0.059]
4.10[0.161]
20.20 [0.795]
17.50 [0.689]
26.20 [0.031]
0.50 [0.020]
11.20 [0.441]
23.60 [0.929]
2.15 [0.085]
0.60 [0.024]
11.20 [0.441]
16.20 [0.638]
1
2
6.20 [0.244]
3
Note :
Unit: mm[inch]
Pin section tolerances:±0.10mm[±0.004inch]
General tolerances : ±0.50mm[±0.020inch]
Note:
Unit: mm[inch]
General tolerances : ±0.50mm[±0.020inch]
L=530mm[20.866inch] Devices per tube quantity : 44pcs
L=220mm[8.661inch] Devices per tube quantity : 17pcs
Short tube inner packaging dimensions: L*W*H=255*170*80mm
Short tube outer packaging dimensions: L*W*H=375*280*270mm
Long tube inner packaging dimensions : L*W*H=580*200*100mm
Long tube outer packaging dimensions(with two inner packaging boxes):
L*W*H=600*215*220mm
Long tube outer packaging dimensions(with two inner packaging boxes):
L*W*H=600*215*325mm
Note:
1. The load shouldn't be less than 10%, and the output external capacitor should not be too large (recommend <10μF), otherwise ripple will increase
dramatically.
2. Operation under 10% load will not damage the converter; However, they may not meet all specification listed
3. All specifications measured at Ta=25°C, humidity<75%, nominal input voltage and rated output load unless otherwise specified.
4. In this datasheet, all the test methods of indications are based on corporate standards.
The copyright and authority for the interpretation of the products are reserved by MORNSUN
Specifications subject to change without notice.
K78UXX-500(L)
A/1-2011
Page 4 of 4
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