rev.
page
date
2 of 3
09/2009
PART NUMBER:
VWRBS2
DESCRIPTION:
dc-dc converter
General Specifications
Output short circuit protection
Temperature rise at full load
Cooling
No-load power consumption
Operating temperature range
Storage temperature
Soldering temperature
Storage humidity range
Case material
MTBF
range
Continuous
15°C typ., 35°C max.
Free air convection
100mW (typical)
-40°C to +85°C
-50°C to +125°C
300°C (1.5mm from case for 10sec.)
<95%
Plastic (UL94-V0)
>1,000,000 hrs.
Isolation Specifications
Item
Isolation Voltage
Isolation Resistance
Isolation Capacitance
Test Conditions
Flash tested for 1 min.
Test at 500 Vdc
Input/Output
Min.
1500
1000
80
Typ.
Max.
Units
Vdc
M
Ω
PF
Typical Characteristics
D1 Ic R
Li n 2
Cin
G ND
1
7
3
6
8
Cs
Co ut
0V
+Vo
Vc
Vi n
Single Output
Recommended circuit
It is best to test with full load and not to test
without load. To further reduce output ripple,
you may increase the external capacitor,
choose a capacitor with low ESR, or add
external inductor to the circuit as shown on
the left.
General:
Cin: 5V, 12V 100μF
24V, 48V 10μF ~ 47μF
Cout:100μF(typ)
Lin: 4.7μH ~ 120 μH
CS Pin
By connecting a low ESR capacitor between
this terminal and the pin-7 (Figure 1). the out-
put ripple and noise may be further improved.
Generally, the capacitance is no greater than
47uF.
First Angle Projection
Figure 1
Outline Dimensions &
Recommended Layout Pattern
12 3
5 678
RECOMMENDED FOOTPRINT
Top
view,grid:2.54mm(0.1inch),
diameter:1.00mm
Dual Output & Single Output
3 5
+0.020
)
0
(0.866)
4.10
0
+0.50
12.00
FOOTPRINT DETAILS
Pin
1
2
3
5
6
7
8
Single
GND
Vin
CTRL
NC
+Vo
OV
CS
Note:
Unit:mm(inch)
Pin section:0.50*0.30mm(0.020*0.012inch)
Pin tolerances:
+
0.10mm(
+
0.004inch)
General tolerances:
+
0.25mm(
+
0.010inch)
0.50
NC:No Connection
20050
SW
112
th
Ave. Tualatin, Oregon
97062
phone
503.612.2300
fax
503.612.2383
www.v-infinity.com
CUI [ CUI INC ]
