WRN78-1500B

WRN78XX-1500(B) Series
WIDE INPUT NON-ISOLATED & REGULATED SINGLE OUTPUT
Product Program
Input Voltage(VDC)
Part Number
Output
(%,Typ)
Efficiency
Efficiency(%,Typ)
Voltage
Current
Vin
Vin
(VDC)
(MA)
(min.)
(max.)
4.75-18
1.5
1500
83
78
4.75-18
1.8
1500
85
81
12
4.75-18
2.5
1500
88
85
WRN7803-1500
12
4.75-18
3.3
1500
91
88
WRN7805-1500
12
6.5-18
5
1500
93
91
WRN786.5-1500
12
8-18
6.5
1500
95
93
WRN781.5-1500B
12
4.75-18
1.5
1500
83
78
WRN781.8-1500B
12
4.75-18
1.8
1500
85
81
WRN782.5-1500B
12
4.75-18
2.5
1500
88
85
◆Low ripple and noise
WRN7803-1500B
12
4.75-18
3.3
1500
91
88
◆Micro miniature SIP3 package
WRN7805-1500B
12
6.5-18
5
1500
93
91
WRN786.5-1500B
12
8-18
6.5
1500
Add suffix "B" for 90°bend pins, for example: WRN7805-1500B.
95
93
Nominal
Range
WRN781.5-1500
12
FEATURES
WRN781.8-1500
12
WRN782.5-1500
◆Efficiency up to 95%, No heatsink require
◆1.5A large current output
◆Operating temperature : -40°C~ +85°C
◆Short circuit protection, thermal shutdown
◆UL94-V0 requirement
◆Ultra low power loss
◆Industry standard pinout
◆Pin-out compatible with WRN78xx linear
OUTPUT SPECIFICATION
SPECIFICATIONS
S
◆MTBE>2000,000Hours
Item
Test conditions
Output voltage accuracy
100% full load,input voltage range
Line regulation
MODEL SELECTION
WR
WRN78
N78①05②-1500③(B)④
①Product Series
③Output Current
②Output Voltage
④Bend 90°pins
Min.
Typ.
Max.
±2
±3
Vin=min. to max, at full load
±0.5
±0.75
Load regulation
10% to 100% load
±0.5
±1.0
Ripple & Noise*
20MHz bandwidth (refer to figure 6 )
Short circuit input power
Short circuit protection
Thermal shutdown
Switching frequency
Internal IC junction
Full load, input voltage range
300
Quiescent current
Temperature coefficient
The WRN78xx-1500(B) series switching regulators
are ideal replacement for WRN78xx linear regulators. The
%
20
45
mVp-p
0.5
1.8
W
Continuous, auto-recovery
Output current limit
APPLICATIONS
Units
-40℃ ~ +85℃ ambient
Max capacitance load
150
℃
5000
mA
340
380
5
10
KHz
mA
±0.02
%/℃
1000
µF
*Test ripple and noise by "parallel cable" method.
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
COMMON SPECIFICATION
SPECIFICATIONS
S
widely used in industrial control, instrumentation, and
Operating temp. range
-40~+85℃(above 71℃ power derating)
electric power applications.
Operating case temp.
+100℃(max)
Storage temp. range
-55~+125℃
Cooling
Free air convection
Lead temperature**
300℃(max)
Storage humidity range
≤95%
Case material
Plastic(UL94-V0)
MTBF
> 2000k hours (25℃MIL-HDBK-217F)
Weight
4.0g
Conducted emissions (Refer to Figure 5)
EN55022
CLASS B
Radiated emissions
EN55022
CLASS B
ESD
EN61000-4-2
MICRODC reserves the copyright
Level 3 6kV/8kV perf. Criteria B
**1.5mm from case for 10 seconds
Note:
http://www.microdc.cn
Technical Enquiries-Email:[email protected] Tel:0086-20-86000646
Page 1 of 4
WRN78XX-1500(B) Series
TYPICAL CHARECTERISTICS
EXTERNAL CAPACITOR TABL
(figure 1)
Part Number
C1
(Ceramic capacitor)
C2
(Ceramic capacitor)
WRN781.5-1500(B)
10µF/25V
22µF/6.3V
WRN781.8-1500(B)
10µF/25V
22µF/6.3V
WRN782.5-1500(B)
10µF/25V
22µF/6.3V
WRN7803-1500(B)
10µF/25V
22µF/6.3V
WRN7805-1500(B)
10µF/25V
22µF/16V
WRN786.5-1500(B)
10µF/25V
22µF/16V
TYPICAL APPLICATION CIRCUIT
(figure 2)
Note:
1. C1 and C2 are required and should be fitted close to the converter pins.
2. The capacitance of C1and C2 sees external capacitor table, it can be increased properly if required, and tantalum or low ESR electrolytic capacitors may
also suffice.
3. No parallel connection or plug and play.
INPUT FILTER CIRCUIT CONNECT
(figure 3)
OUTPUT FILTER CIRCUIT CONNECT
(figure 4)
EMC RECOMMENDED CIRCUIT
(figure 5)
http://www.microdc.cn
Technical Enquiries-Email:[email protected] Tel:0086-20-86000646
Page 2 of 4
WRN78XX-1500(B) Series
OTEST CONFIGURATIONS (TA=25
(TA=25℃
℃)
1
Efficiency and Output Voltage Ripple Test
(figure 6)
2
Start-up and Load Transient Response Test
(figure 7)
CHARACTERISTICS CURVE
http://www.microdc.cn
Technical Enquiries-Email:[email protected] Tel:0086-20-86000646
Page 3 of 4
WRN78XX-1500(B) Series
OUTLINE DIMENSIONS & FOOTPRINT DETAILS
MECHANICAL DIMENSIONS
78XX15
00
WRN
WRN78XX78XX-15
1500
RECOMMENDED FOOTPRINT
78XX15
00
WRN
WRN78XX78XX-15
1500
78XX15
00
B
WRN
WRN78XX78XX-15
1500
00B
Note:
grid:2.54*2.54mm.
Note:
Unit:mm[inch]
Pin section tolerances: ±0.10mm[±0.004inch]
General tolerances: ±0.25mm[±0.010inch]
TUBE OUTLINE DIMENSIONS
78XX15
00
B
WRN
WRN78XX78XX-15
1500
00B
WRN78XX-1500
Note:
Unit:mm[inch]
Pin section tolerances: ±0.10mm[±0.004inch]
General tolerances: ±0.25mm[±0.010inch]
WRN78XX-1500B
Note:
Unit :mm[inch]
General tolerances:±0.50mm[±0.020inch]
L=530mm[20.866inch]
Devices per tube quantity: 44pcs
L=220mm[8.661inch]
Devices per tube quantity: 17pcs
Short tube inner packaging dimensions: L*W*H=255*170*80mm
Short tube outer packaging dimensions(with six inner packaging boxes):
L*W*H=375*280*270mm
Long tube inner packaging dimensions: L*W*H=580*200*100mm
Long tube outer packaging dimensions(with two inner packaging boxes):
L*W*H=600*215*220mm
Long tube outer packaging dimensions(with three inner packaging boxes):
L*W*H=600*215*325mm
Note:
1.All specifications measured at Ta=25℃, humidity<75%, nominal input voltage(12V) and rated output load unless otherwise specified.
2. Only typical models listed, other models may be different, please contact our technical person for more details.
3. In this datasheet, all the test methods of indications are based on corporate standards.
http://www.microdc.cn
Technical Enquiries-Email:[email protected] Tel:0086-20-86000646
Page 4 of 4