● 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 year Warranty 0.5 AMP SIP3 Single Output 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 utilization 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. RoHS Selection Guide Part Number SIP3 Input Range (V) Output Voltage (V) Output Current (A) R-78HB3.3-0.5 9 - 72 3.3 0.5 82 80 76 R-78HB5.0-0.5 9 - 72 5.0 0.5 87 85 81 R-78HB6.5-0.5 9 - 72 6.5 0.5 91 87 84 R-78HB9.0-0.5 14 - 72 9.0 0.5 92 90 86 R-78HB12-0.5 17 - 72 12 0.5 94 93 89 R-78HB15-0.5 20 - 72 15 0.5 95 94 91 R-78HB24-0.3 36 - 72 24 0.3 96 2011/65/EU 6/6 Efficiency Vmin. 30V 72V (%) (%) (%) EN-55022 Certified EN-55024 Certified IEC/EN-60950-1 Certified R-78HB 92 * add Suffix “L” for 90° bent pins, e.g. R-78HB5.0-0.5L Derating-Graph Characteristics Conditions Min. Typ. Max. Input Voltage Range See table 9V 72V 75V max. Output Voltage Range (for customized parts) All Series 3.3V 24V Output Current (see Note 1) 3.3V, 5V, 6.5V, 9V, 12V, 15V 10mA 500mA 24V 6mA 300mA Short Circuit Input Current All Series 15mA Internal Input Filter 25mA 1µF Capacitor Internal Power Dissipation 0.65W Short Circuit Protection Continuous, automatic recovery Output Voltage Accuracy At 100% Load ±2% Line Voltage Regulation Vin = min. to max. at full load 0.4% 1% Load Regulation 10% to 100% full load 0.3% 0.6% Dynamic Load Stability (with Output Capacitor=100µF) 100% <-> 50% load Ripple & Noise (without Output Capacitor) ±3% (Ambient Temperature) 120 100 Output Power (%) Specifications (refer to the standard application circuit, Ta: 25°C, minimum load = 10%) 80 60 40 20 0 Safe Operating Area -40 0 25 50 Operating Temperature (°C) 85 75 100 71 ±75mV ±100mV 10% to 100% full load 20mVp-p 60mVp-p Refer to Application Notes continued on next page www.recom-power.com REV: 0/2015 I-29 R-78HBxx-0.5 (L) Series INNOLINE DC/DC-Converter Specifications (refer to the standard application circuit, Ta: 25°C, minimum load = 10%) Characteristics Conditions Temperature Coefficient -40°C ~ +85°C ambient Max capacitance Load Min. Typ. with normal start-up time, no external components 100µF with <1 second start up time + diode protection circuit 6800µF Switching Frequency (See Graph) Full Load Quiescent Current Vin = 48VDC. at minimum load 120kHz 800kHz 1mA Operating Temperature Range 5mA -40°C +85°C Operating Case Temperature +100°C Storage Temperature Range -55°C +125°C Case Thermal Impedance 60°C / W Relative Humidity 95% RH Case Material Non-Conductive Black Plastic Potting Material Epoxy (UL94V-0) Package Weight 4g Packing Quantity 42 pcs per Tube Soldering Temperature 265°C max./10 sec. Conducted Emissions EN55022 Class B Radiated Emissions EN55022 Class B ESD IEC/EN General Safety EN61000-4-2 Report: SPCLVD 1407030-1 MTBF (+25°C) using MIL-HDBK 217F 7395 x 10³ hours using MIL-HDBK 217F 1242 x 10³ hours (+71°C) } Detailed Information see Application Notes chapter "MTBF" Class A IEC/EN-60950-1, 2nd Edition Typical Application Circuit +Vin +Vout R-78HBxx-0.5 3.3µF/100V Required if Vin>50V -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 Switching Frequency vs Load 800 Vo=24V Vo=15V Vo=12V Vo=9.0V Vo=6.5V Vo=5.0V Vo=3.3V 400 200 Frequency (kHz) R-78HB Max. 0.015%/°C 100 50 10 10 50 100 200 300 400 500 Output Current ( mA ) Switching Frequency Vs Load ( Vin=30~72V ) I-30 REV: 0/2015 www.recom-power.com R-78HBxx-0.5 (L) Series INNOLINE DC/DC-Converter Typical Characteristics Ripple Efficiency Vo=24V Vo=15V Vo=12V Vo=9V Vo=6.5V Vo=5V Vo=3.3V 100 75 50 25 Vo=24V Vo=6.5V Vo=12V,15V Vo=3.3V Vo=9V Vo=5V Ripple (mV) Efficiency (%) 50 25 9 20 30 40 50 60 9 72 30 20 Vo=15V Vo=12V Vo=9V Vo=6.5V Vo=5V Vo=3.3V 75 40 Ripple (mV) Efficiency (%) 25 200 300 400 20 10 500 50 Vo=15V, 24V Vo=12V Vo=9V Vo=6.5V Vo=5V Vo=3.3V 100 75 300 400 500 40 Ripple (mV) Efficiency (%) 25 200 300 60 50 100 200 Ripple Vs Load ( Vin=Max ) Efficiency Vs Load ( Vin=Max ) 50 100 Output Current ( mA ) Output Current ( A ) 10 Vo=6.5V Vo=12V, 15V Vo=3.3V Vo=9.0V Vo=5.0V Vo=24V R-78HB 100 72 60 50 50 60 Ripple Vs Vin ( Full Load ) Vo=24V 10 50 Vin ( V ) Vin ( V ) Efficiency Vs Vin (Full Load) 100 40 400 500 Vo=24V 20 10 Output Current ( A ) 50 100 200 Vo=6.5V Vo=12V, 15V Vo=3.3V Vo=9.0V Vo=5.0V 300 400 500 Output Current ( mA ) Efficiency Vs Load ( Vin=Min ) Ripple Vs Load ( Vin=Min ) *Note: Operation under no load will not damage these devices, however they may not meet all specifications. A minimum load of 10mA is recommended www.recom-power.com REV: 0/2015 I-31 R-78HBxx-0.5 (L) Series INNOLINE DC/DC-Converter Optional Protection Circuit Optional Protection 2: 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. +Vin +Vout R-78xx-xx +Vin Vout= +Vout 0.3V R-78xx-xx Schottky Diode The diode can either be fitted across the device if the source is low impedance or fitted in series with the output (recommended). -Vin -Vout -Vin -Vout Typical Application High Input Voltage Multiple Output Supply Reverse Polarity Protection R-78HB12-0.5 +Batt +12V@100mA +5V@850mA R-785.0-1.0 Cstorage, 10uF Brown Out Protection -Batt 0V Com R-78HB - 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 Package Style and Pinning (mm) SIP3 PIN Package 8.50 8.50 RECOM 17.5 Front View R-78HB5.0-0.5 **** Pb Front View **** 0.51 typ. 4.10 1.50 max 0.7 ±1.0 4.10 1.00 ø+0.15/0 11.50 2.54 Bottom View 3.21 Pb 1 2 3 L - Version Recommended Footprint Details 0.25 RECOM R-78HB5.0-0.5 5.08 2.0 Top View 2.54 Pin Connections Pin # 1 +Vin 2 GND 3 +Vout xx.x ±0.5mm xx.xx ±0.25mm The product information and specifications are subject to change without prior notice. RECOM products are not authorized for use in safety-critical applications (such as life support) without RECOM’s explicit written consent. A safety-critical application is defined as an application where a failure of a RECOM product may reasonably be expected to endanger or cause loss of life, inflict bodily harm or damage property. The buyer shall indemnify and hold harmless RECOM, its affiliated companies and its representatives against any damage claims in connection with the unauthorized use of RECOM products in such safety-critical applications. I-32 REV: 0/2015 www.recom-power.com