NFM-20-5 [MEANWELL]
20W Output Switching Power Supply; 20W输出开关电源
| 型号： | NFM-20-5 |
| 厂家： | 
MEAN WELL ENTERPRISES CO., LTD. |
| 描述： | 20W Output Switching Power Supply |
| 文件： | 总2页 (文件大小：253K) |
| 中文： | 中文翻译 | 下载： | 下载PDF数据表文档文件 |
20W Output Switching Power Supply
NFM-20 series
Features :
Universal AC input / Full range
Protections: Short circuit / Overload / Over voltage / Over temperature
Ultra-miniature size, light weight
Cooling by free air convection
UL60601-1/IEC60601-1/EN60601-1 medical safety approved
No load power consumption<0.75W
100% full load burn-in test
Optional on-board type version available
Fixed switching frequency at 90KHz
High reliability
3 years warranty
EN60601-1
IEC60601-1
SPECIFICATION
MODEL
NFM-20-3.3
NFM-20-5
NFM-20-12
NFM-20-15
NFM-20-24
DC VOLTAGE
3.3V
5V
12V
15V
24V
RATED CURRENT
CURRENT RANGE
RATED POWER
4.5A
4.4A
1.8A
1.4A
0.92A
0 ~ 4.5A
14.85W
0 ~ 4.4A
22W
0 ~ 1.8A
21.6W
150mVp-p
10.8 ~ 13.2V
1.0%
0 ~ 1.4A
21W
0 ~ 0.92A
22.08W
240mVp-p
21.6 ~ 26.4V
1.0%
RIPPLE & NOISE (max.) Note.2 80mVp-p
VOLTAGE ADJ. RANGE 3.1 ~ 3.6V
VOLTAGE TOLERANCE Note.3 2.0%
80mVp-p
4.5 ~ 5.4V
2.0%
150mVp-p
13.5 ~ 16.5V
1.0%
OUTPUT
LINE REGULATION
LOAD REGULATION
SETUP, RISE TIME
HOLD UP TIME (Typ.)
1.0%
1.0%
0.5%
0.5%
0.5%
1.5%
1.5%
0.5%
0.5%
0.5%
500ms, 20ms/230VAC
500ms, 20ms/115VAC at full load
50ms/230VAC
85 ~ 264VAC
47 ~ 440Hz
71%
16ms/115VAC at full load
120 ~ 370VDC
VOLTAGE RANGE
FREQUENCY RANGE
EFFICIENCY (Typ.)
75%
81%
83%
84%
INPUT
0.6A/115VAC
0.4A/230VAC
AC CURRENT (Typ.)
INRUSH CURRENT (Typ.)
COLD START 30A/115VAC
<200uA / 240VAC
65A/230VAC
LEAKAGE CURRENT
Above 105% rated output power
OVERLOAD
Protection type : Hiccup mode, recovers automatically after fault condition is removed
13.8 ~ 16.2V 17.25 ~ 20.25V
27.6 ~ 32.4V
3.8 ~ 4.46V
5.75 ~ 6.75V
OVER VOLTAGE
PROTECTION
Protection type : Shut off o/p voltage, clamping by zener diode
Tj 160 typically (U1) detect on main control IC
OVER TEMPERATURE Note.5
Protection type : Shut down o/p voltage, recovers automatically after temperature goes down
-20 ~ +60 (Refer to output load derating curve)
20 ~ 90% RH non-condensing
WORKING TEMP.
WORKING HUMIDITY
STORAGE TEMP., HUMIDITY
TEMP. COEFFICIENT
VIBRATION
-40 ~ +85 , 10 ~ 95% RH
ENVIRONMENT
0.03%/ (0 ~ 50
)
10 ~ 500Hz, 2G 10min./1cycle, period for 60min. each along X, Y, Z axes
UL60601-1,TUV EN60601-1, IEC60601-1 approved
SAFETY STANDARDS
WITHSTAND VOLTAGE
ISOLATION RESISTANCE
EMI CONDUCTION & RADIATION
HARMONIC CURRENT
EMS IMMUNITY
I/P-O/P:4KVAC I/P-FG:1.5KVAC O/P-FG:1.5KVAC
I/P-O/P, I/P-FG, O/P-FG:100M Ohms/500VDC
SAFETY &
EMC
(Note 4)
Compliance to EN55011(CISPR11),EN55022 (CISPR22) Class B
Compliance to EN61000-3-2,-3
Compliance to EN61000-4-2,3,4,5,6,8,11; ENV50204, EN55024, EN60601-1-2, EN61204-3, medical level, criteria A
MTBF
487.8Khrs min. MIL-HDBK-217F (25
)
OTHERS
NOTE
DIMENSION
89*51*19.3mm (L*W*H)
0.09Kg; 105pcs/10.5Kg/0.97CUFT
PACKING
1. All parameters NOT specially mentioned are measured at 230VAC 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.
5. The over temperature protection (OTP) is the built-in function of the control IC (U1). The activating level described above is based on the specification
provided by the IC manufacturer.
File Name:NFM-20-SPEC 2007-09-19
20W Output Switching Power Supply
NFM-20 series
Mechanical Specification
Unit:inch(mm)
3.5"(88.9mm)
3.2"(81.3mm)
0.15"
(3.8mm)
4-0.13"(3.3mm) Dia
Mounting Holes
T2A/250V
CN2
1
3
2
1
2
3
4
T2A/250V
FG
FG
To Chassis Grounding
AC Input Connector (CN1) : Molex 41791-03 or equivalent
DC Output Connector (CN2) : Molex 41791-04 or equivalent
Pin No. Assignment
Mating Housing
Terminal
Pin No. Assignment
Mating Housing
Terminal
1
2
3
AC/N
No Pin
AC/L
1,2
3,4
+V
-V
Molex 2139
or equivalent
Molex 2478
or equivalent
Molex 2139
or equivalent
Molex 2478
or equivalent
Block Diagram
fosc : 90KHz
RECTIFIERS
&
FILTER
POWER
SWITCH-
ING
RECTIFIERS
&
FILTER
+V
-V
EMI
FILTER
I/P
FG
PWM
CONTROL
DETECTION
CIRCUIT
Derating Curve
Output Derating VS Input Voltage
Ta=25
100
90
100
80
80
70
60
40
60
50
40
20
-20
0
10
20
30
40
50
60
70 (HORIZONTAL)
85 95 100 115 120 140 160 180 200 220 240 264
AMBIENT TEMPERATURE (
)
INPUT VOLTAGE (VAC) 60Hz
File Name:NFM-20-SPEC 2007-09-19
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