AM 15 SI
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DC/DC Converter Single Output The AM 15 series of high performance DC/DC converters supplies up to 18 Watts of output power in a 2 X 1 X 0.49 inch package. These new generation converters are equipped with self synchronous rectification and offer very high efficiency, up to 89% @ 12V output.This allows operation up to 70°C without derating when convection cooled. The operating range is extended with forced air cooling. A broad product offer including an input voltage range of 36V to 75VDC, with telecommunication and industry standard outputs of 12V, 5V, 3.3V, • RoHS compliant • Basic insulation: 1500 Vdc (input to output) • High reliability Standard Features • Industry standard footprint • Open frame • 2: 1 input voltage range

• Input reverse voltage protection • Fixed frequency operation • Output voltage adjustment • Remote on/off (positive control logic) • Output current limitation: Hiccup or Shutdown Optional Features • Remote On/Off: Positive or negative logic • *Other pin lengths available: please contact us • External Output Voltage Adjustment (Trim) Part Number Type Size PART NUMBER OPTIONS Part Number System with options Enable logic Options description - Package size Output voltage Product family Options description Current limitation

Mechanical Specification: Bottom view Side view Bottom view

Absolute Maximum Ratings Stress in excess of Absolute Maximum Ratings may cause permanent damage to the device. Input Characteristics Unless otherwise specified, specifications apply over all Rated Input Voltage, Resistive Load, andTemperature conditions. Caution:The power modules are not internally fused. An external input line blow fuse with a maximum value of 1.50A is required. See the Safety considerations section of the data sheet.

Electrical Data: Output Characteristics Protection and control features

Electrical Characteristics: Efficiency vs. Input Voltage atTa=25C Rise time: Nominal input voltage: 48V ' M I.ÜUMS 'Crii j ' ' 'Á'l'rnv 11 Mar 2002 Typical Output Ripple at 48V Input and Full Load. Typical start up time with nominal load Dynamic regulation: Nominal Input voltage: 48V / Output current transient A/10uS, from 50% to 75% IN

Electrical Data: Output Characteristics Protection and control features

Electrical Characteristics: Efficiency vs. Input Voltage atTa=25C Rise time: Nominal input voltage: 48V TGK Run: lo.oks/s sample Trig? Typical Output Ripple at 48V Input and Full Load. Typical start up time with nominal load 0Ì1 ' b'O'O'rfiÀ' V 't!ri2 ' iÓMMW MV.ÜOrris 'Crii J ' ' '2\bb'A i3 Mar 2002 Dynamic regulation: Nominal Input voltage: 48V / Output current transient A/10uS, from 50% to 75% IN

Electrical Data: Output Characteristics Protection and control features

Electrical Characteristics: Efficiency vs. Input Voltage atTa=25C Rise time: Nominal input voltage: 48V Typical Output Ripple at 48V Input and Full Load. Typical start up time with nominal load Crìi ' l.'O'O' À' \ 'ání ' üO.'ÜrnV^V fcW.ÜÖms 'Crii J ' ' '4.'¿4'A 13 Mar 2002 Dynamic regulation: Nominal Input voltage: 48V / Output current transient A/10uS, from 50% to 75% IN

Electrical Data: Output Characteristics Protection and control features

Electrical Characteristics: Efficiency vs. Input Voltage atTa=25C Rise time: Nominal input voltage: 48V Cini ' i.'ddrnvfi*. Typical Output Ripple at 48V Input and Full Load. Typical start up time with nominal load Crii 1 .'O'O' A' V 'afri ' bÓ.'ü'nW'A' M'ZÜOrris 'crii J ' ' '4724'A 13 Mar 2002 Dynamic regulation: Nominal Input voltage: 48V / Output current transient A/10uS, from 50% to 75% IN

Electrical Data: Output Characteristics Protection and control features

Electrical Characteristics: Efficiency vs. Input Voltage atTa=25C Rise time: Nominal input voltage: 48V Typical Output Ripple at 48V Input and Full Load. Typical start up time with nominal load Cñi ' L'Oli Á' V 'ChS 'iÓ.'flmVW M'a.Öoms 'Oil S ' ' 'b.'OÖ'A 13 Mar 2002 Dynamic regulation: Nominal Input voltage: 48V / Output current transient A/10uS, from 50% to 75% IN

Thermal Performance Output power ■Convection cooling Maximum output current vs ambient temperature at nominal Thermal measurement location - top view. input voltage for airflow rates natural convection (0.1 m/s) to The thermal curves provided are based upon measurements made as described in theThermal Management section. Due to the large number of variables in system design, Harmer & Simmons recommends that the user verify the module's thermal performance in the end application. The critical component should be thermo coupled and monitored, and should not exceed the temperature limit...

Thermal Management: An important part of the overall system design process is thermal management; thermal design must be considered at all levels to ensure good reliability and lifetime of the final system. Superior thermal design and the ability to operate in severe application environments are key elements of a robust, reliable power module. A finite amount of heat must be dissipated from the power module to the surrounding environment.This heat is transferred by the three modes of heat transfer: convection, conduction and radiation. While all three modes of heat transfer are present in...

For improved design margins and enhanced system reliability, the power module may be operated at temperatures below the maximum rated operating temperature. Heat transfer by convection can be enhanced by increasing the airflow rate that the power module experiences.The maximum output current of the power module is a function of ambient temperature (TAMB) and airflow rate as shown in the thermal performance figures on the thermal performance page for the power module of interest.The curves in the figures are shown for natural convection through 200 LFM (1m/s). The data for the natural...