WRN78XX-1500 Datasheet, PDF (1/4 Pages) Microdc power Technology Co., Ltd – WIDEINPUTNON-ISOLATED & REGULATED SINGLEOUTPUT

WRN78XX-1500(B) Series
WIDE INPUT NON-ISOLATED & REGULATED SINGLE OUTPUT
FEATURES
◆Efficiency up to 95%, No heatsink require
◆1.5A 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
Product Program
Part Number
WRN781.5-1500
WRN781.8-1500
WRN782.5-1500
WRN7803-1500
WRN7805-1500
Input Voltage(VDC)
Nominal
12
12
12
12
12
Range
4.75-18
4.75-18
4.75-18
4.75-18
6.5-18
Output
Voltage
(VDC)
1.5
1.8
2.5
3.3
5
Current
(MA)
1500
1500
1500
1500
1500
WRN786.5-1500
12
8-18
6.5
1500
WRN781.5-1500B
12
4.75-18
1.5
1500
WRN781.8-1500B
12
4.75-18
1.8
1500
WRN782.5-1500B
12
4.75-18
2.5
1500
WRN7803-1500B
12
4.75-18
3.3
1500
WRN7805-1500B
12
6.5-18
5
1500
WRN786.5-1500B
12
8-18
6.5
1500
Add suffix "B" for 90°bend pins, for example: WRN7805-1500B.
Efficiency(%,Typ)
Vin
(min.)
83
85
88
91
93
Vin
(max.)
78
81
85
88
91
95
93
83
78
85
81
88
85
91
88
93
91
95
93
◆Ultra low power loss
◆Industry standard pinout
◆Pin-out compatible with WRN78xx linear _{OUTPUT SPECIFICATIONS}
◆MTBE>2000,000Hours
Item
Test conditions
Min.
Typ.
Max.
Units
MODEL SELECTION
WRN78^①05^②-1500^③(B)^④
①Product Series
③Output Current
②Output Voltage
④Bend 90°pins
APPLICATIONS
The WRN78xx-1500(B) series switching regulators
are ideal replacement for WRN78xx linear regulators. The
efficiency of up to 95% 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
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.
±2
±3
±0.5 ±0.75
%
±0.5 ±1.0
20
45
mVp-p
0.5
1.8
W
Continuous, auto-recovery
150
℃
5000
mA
300
340
380
KHz
5
10
mA
±0.02 %/℃
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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