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Recom

R-78A12-0.5SMD Datasheet Preview

R-78A12-0.5SMD Datasheet

DC/DC-Converter

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R-78A12-0.5SMD pdf
Features
Efficiency up to 97%,Non isolated,
no need for heatsinks
SMD Package
Adjustable Output Voltage
Wide input range.(4.75V ~ 34V)
Short circuit protection, Thermal shutdown
Remote On/Off Control
UL94V-0 Package Material
Very Low Shutdown Current
See Positive-to Negative Converter
Application Note for use as a voltage
inverter (alternative to LM79xx Linear)
INNOLINE
DC/DC-Converter
R-78Axx-
0.5SMD
Series
0.5 AMP
SMD
Single Output
Selection Guide
Part
Number
SMD
R-78A1.5-0.5SMD
Input
Range (1)
(V)
4.75 – 30
R-78A1.8-0.5SMD 4.75 – 34
R-78A2.5-0.5SMD 4.75 – 34
R-78A3.3-0.5SMD 4.75 – 34
R-78A5.0-0.5SMD 6.5 – 34
R-78A6.5-0.5SMD 8.0 – 34
R-78A9.0-0.5SMD 11 – 34
R-78A12-0.5SMD 15 – 34
R-78A15-0.5SMD 18 – 34
Output
Voltage
(V)
1.5
1.8
2.5
3.3
5.0
6.5
9.0
12
15
Adjust
Range
(V)
fixed
1.5~3.3
1.5~4.5
1.8~5.5
2.5~8.0
3.3~11.0
4.5~12.6
4.5~12.6
fixed
Note 1:1.5V Output can be unstable with Vin>30VDC
Output
Current
(A)
0.5
Efficiency
Min. Vin Max. Vin
(%) (%)
73 63
0.5 82 71
0.5 87 77
0.5 91
www.DataSheet4U.com
0.5 94
81
86
0.5 95 88
0.5 96 92
0.5 97 94
0.5 97 95
Description
The R-78Axx-0.5SMD series high efficiency switching regulators are ideally suited to pick-and-place mass
production. The efficiency of up to 97% means that very little energy is wasted as heat. The additional featu-
res of remote on/off control and adjustable output voltages will find many uses in the Battery-powered,
Industrial, Medical and Automotive markets. Low ripple and noise figures and a shutdown input current of
typically only 20uA round off the specifications of this versatile SMD converter series.
Derating-Graph
(Ambient Temperature)
120
100
80
60
40 Safe Operating Area
20
0
-40
0
25 50
7585 100
71
Operating Temperature (°C)
www.recom-international.com
27-March-2007
143



Recom
Recom

R-78A12-0.5SMD Datasheet Preview

R-78A12-0.5SMD Datasheet

DC/DC-Converter

No Preview Available !

R-78A12-0.5SMD pdf
INNOLINE
DC/DC-Converter
R-78Axx-0.5 SMD
Series
Specifications ( typical at 25°C, 10% minimum load, unless otherwise specified )
Characteristics
Input Voltage Range (Note 1)
Output Voltage Range
Output Current
Output Current Limit
Short Circuit Input Current
Internal Power Dissipation
Short Circuit Protection
Output Voltage Accuracy (At 100% Load)
Adjustable Voltage Range
Line Voltage Regulation (Vin = min. to max. at full load)
Load Regulation (10 to 100% full load)
Dynamic Load Stability
Ripple & Noise (without Output Capacitor)
Temperature Coefficient
Max capacitance Load
Switching Frequency
Quiescent Current
Shutdown Input Current
Remote On/Off Threshold Voltage
ON/OFF Remote Control
Operating Temperature Range (with derating)
Switch On/Off Time
Operating Case Temperature
Storage Temperature Range
Case Thermal Impendance
Thermal Shutdown
Package Weight
}MTBF (+25°C)
. (+71°C)
Detailed Information see
Application Notes chapter "MTBF"
Conditions
See Table
See Table
All Series
All Series
All Series
Min.
4.75
1.5
0
All Series
See Table 1
1.5V to 6.5V
9V to 15V
1.5V to 6.5V
9V to 15V
100% <-> 50% load
100% <-> 10% load
1.5V to 6.5V
9V to 15.5V
-40°C ~ +85°C ambient
Vin = min. to max. at 0% load
280
0.8
ON: Open or 1.6<Vr<5V, OFF: GND or 0<Vr<1.6V
-40°C
(using Remote On/Off Control)
-55°C
Internal IC junction
using MIL-HDBK 217F
Typ. Max.
34.0V
15V
500mA
2000mA
25mA
0.4W
Continuous, automatic recovery
±2 ±3%
0.2
0.1
0.7
0.25
±75V
20mVp-p
30mVp-p
±50%
0.4%
0.2%
1.0%
0.4%
±100mV
30mVp-p
40mVp-p
0.015%/°C
220µF
330 380kHz
5 7mA
20 35uA
1.2 1.6V
Ir=1.8uA typ.
+85°C
50ms
+100°C
+125°C
70°C / W
+160°C
2.7g
21098 x 10³ hours
4214 x 10³ hours
Standard Application Circuit
+Vin
On/Off
1,2 R-78Axx-0.5SMD 4,5
Cin 10 3,7,8,9
10µF
(Vin>28V)
6
R1
R2
-Vin
+Vout
-Vout
Add a blocking diode to
Vout if current can flow
backwards into the out-
put, as this can damage
the converter..
See Application
Examples for details.
Use input capacitor if Vin>28VDC.
144
27-March-2007
www.recom-international.com


Part Number R-78A12-0.5SMD
Description DC/DC-Converter
Maker Recom
Total Page 5 Pages
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