R-78HB5.0-0.5L RECOM POWER

Efficiency up to 96%, no heatsinks required Pin-out compatible with LM78XX linears Features Low profile (L/W/H=11.5 x 8.5 x 17.5mm) DC/DC Converter High input voltage range, up to 72V Short circuit protection, thermal shutdown Switching Low ripple and noise L version with 90 pins Regulator R-78HB-0.5(L) Positive to negative converter Description 0.5 Amp The R-78HBxx-Series high efficiency, high input voltage switching regulators are ideally suited to replace SIP3 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. Single Output An input voltage range of up to 8:1 is 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. Selection Guide Part Input Output Output Efficiency Number Voltage Range Voltage Current min Vin max. Vin VDC VDC A % % R-78HB3.3-0.5 9 - 72 3.3 0.5 82 76 R-78HB5.0-0.5 9 - 72 5.0 0.5 87 81 R-78HB6.5-0.5 9 - 72 6.5 0.5 91 84 R-78HB9.0-0.5 14 - 72 9.0 0.5 92 86 R-78HB12-0.5 17 - 72 12 0.5 94 89 R-78HB15-0.5 20 - 72 15 0.5 95 91 R-78HB24-0.3 36 - 72 24 0.3 96 92 Model Numbering R-78HB - (L) (1) Output Voltage Pinning Output Current Notes: IEC/EN60950-1 certified Note1: add suffix L for 90 bent pins, e.g. R-78B5.0-1.0L EN55032 compliant Specifications (measured Ta= 25C, 10% minimum load, unless otherwise stated) BASIC CHARACTERISTICS Parameter Condition Min. Typ. Max. Internal Input Filter 1F capacitor Absolute Maximum Input Voltage 75VDC Quiescent Current nom. Vin= 48VDC 1mA 5mA Internal Power Dissipation 0.65W (2) Minimum Load 2% Notes: Note2: Operation under no load will not harm the converter, but specifications may not be met A minimum load of 10mA is recommended continued on next page www.recom-power.com REV.: 5/2019 I-1R-78HBxx-0.5(L) DC/DC Converter Series Specifications (measured Ta= 25C, 10% minimum load, unless otherwise stated) Parameter Condition Min. Typ. Max. Internal Operating Frequency nom. Vin= 48VDC 120kHz 800kHz Output Ripple and Noise 20MHz BW (10 - 100% load) 20mVp-p 60mVp-p Absolute Maximum 1 second start up, no external components 100F Capacitive Load <1 second start up + diode protection circuit 6800F Switching Frequency vs. Load 800 400 200 24Vout 100 15Vout 12Vout 9Vout 50 6.5Vout 5Vout 3.3Vout 10 10 50 100 200 300 400 500 Output Current (mA) Ripple vs. Vin (full load) Efficiency vs. Vin (full load) 100 50 24Vout 15, 12Vout 45 90 9Vout 40 6.5Vout 80 5Vout 35 70 3.3Vout 30 60 25 50 24Vout 20 40 15Vout 12Vout 15 30 9Vout 10 20 6.5Vout 5Vout 5 10 3.3Vout 0 0 9 18 27 36 45 54 63 72 9 18 27 36 45 54 63 72 Input Voltage VDC Input Voltage VDC continued on next page www.recom-power.com REV.: 5/2019 I-2 Efficiency % Frequency kHz Ripple mV