WRN78XX-2000 Datasheet, PDF (1/4 Pages) Microdc power Technology Co., Ltd – WIDEINPUTNON-ISOLATED & REGULATED SINGLEOUTPUT

WRN78XX-2000(B) Series
WIDE INPUT NON-ISOLATED & REGULATED SINGLE OUTPUT
FEATURES
◆Efficiency up to 92%,No heatsink required
◆2A large current output
◆Operating temperature : -40°C ~ +85°C
◆Short circuit protection, thermal shutdown
◆Low ripple and noise
◆Micro miniature SIP3 package
◆UL94-V0 requirement
◆Ultra low power loss
◆Industry standard pinout
◆Pin-out compatible with WRN78xx linear
◆MTBE>2000,000Hours
MODEL SELECTION
WRN78^①05^②-2000^③(B)^④
①Product Series
③Output Current
②Output Voltage
④Bend 90°pins
APPLICATIONS
The WRN78xx-2000(B) series switching regulators
are ideal replacement for WRN78xx linear regulators.. The
efficiency of up to 92% means that very little energy is
wasted as heat so there is no need for any heat sinks
with their additional space and mounting costs. They are
widely used in industrial control, instrumentation, and
electric power applications.
MICRODC reserves the copyright
Product Program
Part Number
Input Voltage(VDC)
Nominal
Range
Output
Voltage
(VDC)
Current
(MA)
WRN781.5-2000
12
4.75-18
1.5
2000
WRN781.8-2000
12
4.75-18
1.8
2000
WRN782.5-2000
12
4.75-18
2.5
2000
WRN7803-2000
12
4.75-18
3.3
2000
WRN7805-2000
12
7-18
5
2000
WRN786.5-2000
12
8.5-18
6.5
2000
WRN781.5-2000B
12
4.75-18
1.5
2000
WRN781.8-2000B
12
4.75-18
1.8
2000
WRN782.5-2000B
12
4.75-18
2.5
2000
WRN7803-2000B
12
4.75-18
3.3
2000
WRN7805-2000B
12
7-18
5
2000
WRN786.5-2000B
12
8.5-18
6.5
2000
Add suffix "B" for 90°bend pins, for example: WRN7805-2000B.
Efficiency(%,Typ)
Vin
(min.)
79
81
85
87
91
92
79
81
85
87
91
92
Vin
(max.)
76
79
83
86
88
91
76
79
83
86
88
91
OUTPUT SPECIFICATIONS
Item
Test conditions
Output voltage accuracy
100% full load, input voltage range
Line regulation
Vin=min. to max, at full load
Load regulation
10% to 100% load
Ripple & Noise*
20MHz bandwidth (refer to figure 6)
Short circuit input power
Short circuit protection
Thermal shutdown
Internal IC junction
Output current limit
Switching frequency
Full load, input voltage range
Quiescent current
Temperature coefficient
-40℃ ~ +85℃ ambient
Max capacitance load
*Test ripple and noise by "Parallel cable" method.
Min.
Typ.
Max.
Units
±2
±3
±0.5 ±0.75
%
±0.5 ±1.0
25
45
mVp-p
0.5
1.8
W
Continuous, auto-recovery
150
℃
5000
mA
300
340
380
KHz
5
10
mA
±0.03 %/℃
1000
µF
COMMON SPECIFICATIONS
Operating temp. range
Operating case temp.
Storage temp. range
Cooling
Lead temperature**
Storage humidity range
Case material
MTBF
Weight
Conducted emissions (Refer to Figure 5)
Radiated emissions
ESD
**1.5mm from case for 10 seconds
Note:
-40~+85℃（above 71℃ power derating)
+100 ℃（max)
-55~+125℃
Free air convection
300℃（max)
≤95%
Plastic(UL94-V0)
> 2000k hours (25℃，MIL-HDBK-217F)
4.0g
EN55022
CLASS B
EN55022
CLASS B
EN61000-4-2 Level 3 6kV/8kV perf . Criteria B
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