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K7812-500R3 데이터시트 PDF




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K7812-500R3 데이터시트, 핀배열, 회로
DC/DC Converter
K78xx-500R3 Series
Wide input voltage , non-isolated & regulated single
output
FEATURES
High efficiency up to 95%
No-load input current as low as 0.2mA
Operating temperature range: -40to +85
Support the negative output
Output short circuit protection
Pin-out compatible with LM78XX linear regulators
UL60950,EN60950 approval
RoHS
K78xx-500R3 series are high efficiency switching regulators and ideal substitutes of LM78xx series three-terminal linear regulators. The product
is featured with high efficiency, low loss, short circuit protection , support the negative output and no heat sink requirement. They are widely
used in industrial control, instrumentation, and electric power applications.
Selection Guide
Certification
UL/CE
Part
Number
K7803-500R3
K7805-500R3
K7809-500R3
K7812-500R3
K7815-500R3
Input Voltage (VDC)
Nominal
(Range)
24
(4.75-36)
24
(6.5-36)
12
(7-31)
24
(12-36)
24
(15-36)
12
(8-24)
24
(19-36)
12
(8-21)
Output
Output Voltage
(VDC)
Max. Output
Current (mA)
3.3 500
5.0 500
-5.0 -300
9 500
12 500
-12 -150
15 500
-15 -150
Note:For input voltage higher than 30 VDC, a 22uF/50V input capacitor is required.
Efficiency (%/Typ.)
(Min. Vin)/ (Max. Vin)
@Full Load
86/80
90/84
80/81
93/90
94/91
84/85
95/93
85/87
Max.
Capacitive
Load(µF)
680
680
330
680
680
330
680
330
Input Specifications
Item
No-load Input Current
Reverse Polarity Input
Input Filter
Operating Conditions
Positive output
Min. Typ. Max. Unit
-- 0.2 1.5 mA
Forbidden
Capacitor filter
Output Specifications
Item
Operating Conditions
Min. Typ. Max.
Unit
Output Voltage Accuracy
Line Regulation
Full load, input voltage range
Full load, input voltage range
K7803-500R3
Others
-- ±2 ±4
-- ±2 ±3 %
-- ±0.2 ±0.4
Load Regulation
Nominal input,10% -100% load
-- ±0.4 ±0.6
Ripple & Noise*
Temperature Drift Coefficient
20MHz bandwidth, nominal input, 10% -100% load
Operating temperature -40~ +85
--
--
20 75 mVp-p
--
±0.03
%/
Transient response deviation
Transient recovery time
Nominal input, 25% load step change
-- 50 250 mV
-- 0.2 1 ms
Output short circuit protection
Nominal input
Continuous, self-recovery
Note: *1. Ripple and noise tested with “parallel cable” method, please refer to DC-DC Converter Application Notes for specific operation methods;
*2.With the load lower than 10%, the maximum ripple and noise of 3.3V/5V output products will be 150mVp-p, 9V/12V/15V output products will be 2%Vo.
2015.12.15-A/1 Page 1 of 4
MORNSUN Guangzhou Science & Technology Co., Ltd. reserves the copyright and right of final interpretation




K7812-500R3 pdf, 반도체, 판매, 대치품
DC/DC Converter
K78xx-500R3 Series
FUSE
Selected based on the actual
input current from the customer
MOV
S20K30
LDM1
82µH
C0
680µF /50V
C1/C2
Refer to Sheet 1
C5
4.7µF /50V
Note: Part in the Fig. 5 is for EMS test, part is for EMI filtering; parts and can be added based on actual requirement.
3. For more information please find the application notes on www.mornsun-power.com
Dimensions and Recommended Layout
LDM2
12µH
Notes:
1. Packing information please refer to Product Packing Information. Packing bag number: 58200003;
2. The max. capacitive load should be tested within the input voltage range and under full load conditions;
3. Without any special statement, all indexes are only specific to positive output application;
4. Unless otherwise specified, data in this datasheet should be tested under the conditions of Ta=25, humidity<75% when inputting
nominal voltage and outputting rated load;
5. All index testing methods in this datasheet are based on our Company’s corporate standards;
6. The performance indexes of the product models listed in this manual are as above, but some indexes of non-standard model products
will exceed the above-mentioned requirements, and please directly contact with our technician for specific information;
7. Specifications of this product are subject to changes without prior notice.
MORNSUN Guangzhou Science & Technology Co., Ltd.
Address: No. 5, Kehui St. 1, Kehui Development Center, Science Ave., Guangzhou Science City, Luogang District, Guangzhou, P. R. China
Tel: 86-20-38601850-8801
Fax: 86-20-38601272
2015.12.15-A/1 Page 4 of 4
MORNSUN Guangzhou Science & Technology Co., Ltd. reserves the copyright and right of final interpretation

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