50W Single Output DC-DC Converter
Features :
2:1 wide input range
SD-50
Protections: Short circuit / Overload / Over voltage 1500VAC I/O isolation Built-in EMI filter, low ripple noise 100% full load burn-in test Fixed switching frequency at 83KHz Low cost High reliability 2 years warranty
series
SPECIFICATION
MODEL DC VOLTAGE RATED CURRENT CURRENT RANGE RATED POWER OUTPUT VOLTAGE ADJ. RANGE VOLTAGE TOLERANCE Note.3 LINE REGULATION LOAD REGULATION VOLTAGE RANGE INPUT EFFICIENCY (Typ.) DC CURRENT OVERLOAD PROTECTION OVER VOLTAGE WORKING TEMP. WORKING HUMIDITY ENVIRONMENT STORAGE TEMP., HUMIDITY TEMP. COEFFICIENT VIBRATION SAFETY STANDARDS SAFETY & WITHSTAND VOLTAGE ISOLATION RESISTANCE EMC
(Note 4)
SD-50A-5 5V 10A 0 ~ 10A 50W 4.5 ~ 5.5VDC 2.0% 0.5% 0.5%
SD-50B-5
SD-50C-5
SD-50A-12 12V 4.2A 0 ~ 4.2A 50.4W 120mVp-p 11 ~ 16VDC 1.0% 0.3% 0.3%
SD-50B-12
SD-50C-12
SD-50A-24 24V 2.1A 0 ~ 2.1A 50.4W 150mVp-p 23 ~ 30VDC 1.0% 0.2% 0.2%
SD-50B-24
SD-50C-24
RIPPLE & NOISE (max.) Note.2 100mVp-p
SETUP, RISE, HOLD UP TIME 2.5s, 50ms, ------ at full load A:9.2 ~ 18VDC 70% 7A/12V 73% B:19 ~ 36VDC 76% C:36 ~ 72VDC 72% 3A/24V 75% 78% 74% 1.5A/48V 80% 83%
105 ~ 150% rated output power Protection type : Hiccup mode, recovers automatically after fault condition is removed 5.75 ~ 6.75V/10% load 16.8 ~ 20V/10% load 31.5 ~ 37.5V/10% load Protection type : Hiccup mode, recovers automatically after fault condition is removed -10 ~ +60 (Refer to output load derating curve) 20 ~ 90% RH non-condensing -20 ~ +85 , 10 ~ 95% RH 0.03%/ (0 ~ 50 10 ~ 500Hz, 2G 10min./1cycle, 60min. each along X, Y, Z axes Design refer to LVD I/P-O/P:1.5KVAC I/P-FG:1.5KVAC O/P-FG:0.5KVAC / 70% RH
I/P-O/P, I/P-FG, O/P-FG:100M Ohms / 500VDC / 25 EMI CONDUCTION & RADIATION Compliance to EN55022 (CISPR22) Class B EMS IMMUNITY MTBF
Compliance to EN61000-4-2,3,4,6,8; ENV50204, EN55024, heavy industry level, criteria A 365.6K hrs min.(SD-50A) 357.5K hrs min.(SD-50B) 368.5K Hrs min.(SD-50C) MIL-HDBK-217F (25 159*97*38mm (L*W*H) 0.48Kg; 24pcs/12.7Kg/0.75CUFT
)
OTHERS
DIMENSION PACKING
NOTE
1. All parameters NOT specially mentioned are measured at 12,24,48VDC input, rated load and 25 of ambient temperature. 2. Ripple & noise are measured at 20MHz of bandwidth by using a 12" twisted pair-wire terminated with a 0.1uf & 47uf parallel capacitor. 3. Tolerance : includes set up tolerance, line regulation and load regulation. 4. The power supply is considered a component which will be installed into a final equipment. The final equipment must be re-confirmed that it still meets EMC directives. For guidance on how to perform these EMC tests, please refer to EMI testing of component power supplies. (as available on http://www.meanwell.com)
File Name:SD-50-SPEC 2010-10-18
50W Single Output DC-DC Converter
Mechanical Specification
152.5
SD-50
Case No. 901
series
Unit:mm
1
9.5
2 3 4
65
3.5 84.5
7
8.2
5
2-M
3
3.5
4.5 24 78 159 6.5 150
97
18.5
Terminal Pin No. Assignment
Pin No. 1 2 3 Assignment DC INPUT V+ DC INPUT VFG Pin No. 4 5 Assignment DC OUTPUT -V DC OUTPUT +V
3.5 28.5 38
9
M3
22
117
Block Diagram
fosc : 83KHz
I/P EMI FILTER RECTIFIERS & FILTER POWER SWITCHING RECTIFIERS & FILTER +V -V
FG O.L.P. PWM CONTROL O.V.P.
18
3-
9
Derating Curve
3.5
100
DETECTION CIRCUIT
Static Characteristics(SD-50C-24V)
Ta=25 SD-50B,C
32 28 350 300 250 200 150 100 50
80
24 20 16 12 8
60
SD-50A
40
20
-10 -10
0 0
10
20
30
40
50 45
60 55
(VERTICAL) (HORIZONTAL)
25
30
35
40
45
50
55
60
65
70
72
AMBIENT TEMPERATURE ( )
INPUT VOLTAGE (V)
File Name:SD-50-SPEC 2010-10-18
OUTPUT RIPPLE (mVp-p)
OUTPUT VOLTAGE (V)
LOAD (%)
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