Features
●
Efficiency up to 96%, Non isolated,
no need for heatsinks
●
Pin-out compatible with LM78XX Linears
●
Low profile( L*W*H=11.5*8.5*17.5mm)
●
High voltage input range, up to 72V
●
Short circuit protection, Thermal shutdown
●
Non standard outputs available as specials
between 3.3V~24V
●
Low ripple and noise
●
”L” version with 90° pins
●
See Innoline Application Notes for use as an
inverter (alternative to LM79xx Linear)
INNOLINE
DC/DC-Converter
with 3 year Warranty
Description
The R-78HBxx-Series high efficiency, high input voltage switching regulators are ideally suited to replace 78xx linear
regulators and are pin compatible. The efficiency of up to 96% 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.
An input voltage range of up to 8:1is unsurpassed by any other converter and allows the full stored energy utilisation of
standard and high voltage batteries. The fully protected output is ideal for industrial applications (especially for industry
standard 24VDC bus supplies) and the L-Version with 90° pins allows direct replacement for laid-flat regulators where
component height is at a premium. Low ripple and noise figures and a short circuit input current of typically only 15mA
round off the specifications of this versatile converter series.
Typical applications include telecommunication, automotive, industrial, aerospace and battery powered applications.
0.5 AMP
SIP3
Single Output
Selection Guide
Part
Number
SIP3
R-78HB3.3-0.5
R-78HB5.0-0.5
R-78HB6.5-0.5
R-78HB9.0-0.5
R-78HB12-0.5
R-78HB15-0.5
R-78HB24-0.3
Input
Range
(V)
9 - 72
9 - 72
9 - 72
14 - 72
17 - 72
20 - 72
36 - 72
Output
Voltage
(V)
3.3
5.0
6.5
9.0
12
15
24
Output
Current
(A)
0.5
0.5
0.5
0.5
0.5
0.5
0.3
Efficiency
Vmin. 30V 72V
(%) (%) (%)
82
87
91
92
94
95
96
80
85
87
90
93
94
76
81
84
86
89
91
92
2011/65/EU
6/6
RoHS
EN-55022 Certified
EN-55024 Certified
EN-60950-1 Certified
R-78HB
Derating-Graph
* add Suffix “L” for 90° bent pins, e.g. R-78HB5.0-0.5L
Specifications
(refer to the standard application circuit, Ta: 25°C, minimum load = 10%)
Characteristics
Input Voltage Range
Output Voltage Range
(for customized parts)
Output Current (see Note 1)
Short Circuit Input Current
Internal Input Filter
Internal Power Dissipation
Short Circuit Protection
Output Voltage Accuracy
Line Voltage Regulation
At 100% Load
Vin = min. to max. at full load
Continuous, automatic recovery
±2%
0.4%
±3%
1%
Conditions
See table
All Series
3.3V, 5V, 6.5V, 9V, 12V, 15V
24V
All Series
Min.
9V
3.3V
10mA
6mA
15mA
Typ.
72V
Max.
75V max.
24V
500mA
300mA
25mA
0.65W
(Ambient Temperature)
120
100
Output Power (%)
1µF Capacitor
80
60
40
20
0
Safe Operating Area
-40
0
25
50
Operating Temperature (°C)
85
75
100
71
Load Regulation
10% to 100% full load
Dynamic Load Stability
(with Output Capacitor=100µF)
100% <-> 50% load
Ripple & Noise
(without Output Capacitor)
10% to 100% full load
0.3%
0.6%
±75mV ±100mV
20mVp-p 60mVp-p
continued on next page
REV: 1/2014
Refer to Application Notes
I-29
www.recom-international.com
INNOLINE
DC/DC-Converter
Specifications
(refer to the standard application circuit, Ta: 25°C, minimum load = 10%)
Characteristics
Temperature Coefficient
Max capacitance Load
Switching Frequency (See Graph)
Quiescent Current
Operating Temperature Range
Operating Case Temperature
Storage Temperature Range
Case Thermal Impedance
Relative Humidity
Case Material
Potting Material
Package Weight
Packing Quantity
Soldering Temperature
Conducted Emissions
Radiated Emissions
ESD
Safety Certification
MTBF (+25°C)
(+71°C)
EN55022
EN55022
EN61000-4-2
Report: SPCLVD 1301026-1
Detailed Information see
Application Notes chapter "MTBF"
R-78HBxx-0.5
(L) Series
Conditions
-40°C ~ +85°C ambient
with normal start-up time, no external components
with <1 second start up time + diode protection circuit
Full Load
Vin = 48VDC. at minimum load
120kHz
1mA
-40°C
-55°C
Min.
Typ.
Max.
0.015%/°C
100µF
6800µF
800kHz
5mA
+85°C
+100°C
+125°C
60°C / W
95% RH
Non-Conductive Black Plastic
Epoxy (UL94V-0)
4g
42 pcs per Tube
265°C max./10 sec.
Class B
Class B
Class A
EN-60950-1:2006 + A12:2011
7395 x 10³ hours
1242 x 10³ hours
}
using MIL-HDBK 217F
using MIL-HDBK 217F
R-78HB
Typical Application Circuit
+Vin
3.3µF/100V
Required if
Vin>50V
R-78HBxx-0.5
+Vout
-Vin
-Vout
The converter has a built in soft start circuit. Rapidly changing the input voltage
from Vin(min) Vin(max) can bypass this circuit and damage the converter.
Typical Characteristics
Frequency (kHz)
Switching
Frequency
vs
Load
800
400
200
100
50
10
400
Vo=24V
Vo=15V
Vo=12V
Vo=9.0V
Vo=6.5V
Vo=5.0V
Vo=3.3V
10
50
100
200
300
500
Output Current ( mA )
Switching Frequency Vs
Load ( Vin=30~72V )
I-30
REV: 1/2014
www.recom-power.com
INNOLINE
DC/DC-Converter
Optional Protection Circuit
Optional Protection 1:
Add a blocking diode to Vout if
current can flow backwards into
the output, as this can damage
the converter when it is powered
down.
The diode can either be fitted
across the device if the source is
low impedance or fitted in series
with the output (recommended).
R-78HBxx-0.5
(L) Series
Optional Protection 2:
+Vin
R-78xx-xx
+Vout
+Vin
R-78xx-xx
Schottky Diode
Vout=
+Vout -
0.3V
-Vin
-Vout
-Vin
-Vout
Typical Application
High Input Voltage Multiple Output Supply
Reverse Polarity
Protection
+Batt
R-78HB12-0.5
C
storage,
R-785.0-1.0
10uF
+12V@100mA
+5V@850mA
Brown Out
Protection
-Batt
-
-
-
-
0V Com
Wide input range 18V to 72V - can be used with 24V, 48V or 60V batteries
+12V output for interface and display electronics
+5V high current output for digital electronics
Further decoupling filtering may be necessary between the converters
R-78HB
Package Style and Pinning (mm)
SIP3 PIN Package
8.50
RECOM
****
8.50
Front View
Front View
4.10
1.50 max
RECOM
****
17.5
R-78HB5.0-0.5
Pb
R-78HB5.0-0.5
Pb
0.51 typ.
4.10
0.7 typ.
1 2 3
L - Version
Recommended Footprint Details
11.50
1.00 ø+0.15/0
2.54
Pin Connections
Pin #
1
+Vin
2
GND
3
+Vout
xx.x ±0.5mm
xx.xx ±0.25mm
0.25
3.21
Bottom View
5.08
2.0
Top View
2.54
The product information and specifications are subject to change without prior notice. All products are designed for non-safety critical commercial and industrial applications.
The Buyer agrees to implement safeguards that anticipate the consequences of any failures that might cause harm, loss of life and/or damage property.
I-32
REV: 1/2014
www.recom-power.com
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