7 visit us at www.aimtec.ca am1s-n series ? 4pin sip package ? low ripple & noise ? high efficiency up to 81% ? ul94-vo package ? input/output isolation: 1000 & 3000vdc ? operating temperature: -40c ... +85c ? pin-compatible with multiple manufacturers general description our am1s-n series is a family of cost effective 1w single output isolated dc/dc converters. these converters achieve low cost and ultra-miniature sip4 pin size without compromising performance and reliability. twenty models operate from input voltages of 5, 12 & 24vdc; producing output voltage levels of 5, 9, 12 & 15vdc. full smd-design and a 100 % production test of parameters ensures a high reliability in this product. electrical specifications specifications typical at +25c, nominal input voltage, rated output current unless otherwise specified. input specifications: voltage range 10% filter capacitor physical specifications: dimensions 11.7x6.0x10.0mm 0.46x0.24x0.4inches weight 1.8g case material plastic ul94-vo general specifications: efficiency 78% to 81% switching frequency 150khz, typ. 100% load mtbf: > 1,000,000 hrs (mil-hdbk-217f, ground benign, t=+25c) specifications are subject to change without notification isolation specifications: rated voltage (60 sec) 1000 & 3000vdc resistance > 1000mohm capacitance 60pf, typ. environmental specifications: operating temperature (ambient) -40c ... +85c storage temperature -55c ... +125c case temperature +90c, max. derating none required humidity (non-condensing) up to 90% cooling free-air convection 1 watt dc-dc converters output specifications: voltage accuracy see tolerance envelope graph ripple & noise (at 20mhz bw) 75mvp-p, typ short circuit protection 1 sec line voltage regulation 1.2% / 1.0% of vin load voltage regulation 10% max, load=10~100% temperature coefficient 0.03%/c, max. outline dimensions & pin connections dc-dc converters 1000 & 3000vdc pin continued on next page 1 2 3 4 single -v input +v input -v output +v output
8 to order call 1-888-9-aimtec models single output am1s-n series dc-dc converters no load power consumption 10% of nominal power (typical) typical characteristics application note filtering in some circuits which are sensitive to noise and ripple, a filtering capacitor may be added to the dc/dc output end and input end to reduce the noise and ripple. however, the capacitance of the output filter capacitor must be proper. if the capacitance is too big, a startup pr oblem might arise. for every channel of output, provided the safe and reliable operation is ensured, the greatest capacitance of its filter capacitor sees t he external capacitor table. to get an extremely low ripple, an lc filtering network may be connected to the input and output ends of the dc/dc converter, whic h may produce a more significant filtering effect. it should also be noted that the inductance and the frequency of the lc filtering network should be staggered with the dc/dc frequency to avoid mutual interference (see figure 1). requirement on output load to ensure this module can operate efficiently and reliably, a minimum load is specified for this kind of dc/dc converter in add ition to a maximum load (namely full load). during operation, make sure the specified range of input voltage is not exceeded, the minimum output load i s not less than 10% of the full load, and that this product should never be operated under no load! if the actual output power is very small, please conne ct a resistor with proper resistance at the output end in parallel to increase the load. c c overload protection under normal operating conditions, the output circuit of these products has no protection against over-current and short- circuits. the simplest method is to connect a self-recovery fuse in series at the input end or add a circuit breaker to the circuit. output voltage regulation and over-voltage protection circuit the simplest device for output voltage regulation, over-voltage and over-current protection is a linear voltage regulator with overheat protection that is connected to the input or output end in series (see figure 2). external capacitor table vin vout external capacitor external capacitor 5vdc 12vdc 24vdc - 4.7uf 2.2uf 1uf - 5vdc 9vdc 12vdc 15vdc 10uf 4.7uf 2.2uf 1uf models isolation 1000vdc isolation 3000vdc input voltage ouput voltage ouput current max. am1s-0505s-n am1s-0509s-n am1s-0512s-n am1s-0515s-n am1s-1205s-n am1s-1209s-n am1s-1212s-n am1s-1215s-n am1s-2405s-n am1s-2409s-n am1s-2412s-n am1s-2415s-n 5vdc 9vdc 12vdc 15vdc 5vdc 9vdc 12vdc 15vdc 5vdc 9vdc 12vdc 15vdc 200ma 110ma 83ma 67ma 200ma 110ma 83ma 67ma 200ma 110ma 83ma 67ma am1s-0505sh30-n am1s-0509sh30-n am1s-0512sh30-n am1s-0515sh30-n am1s-1205sh30-n am1s-1209sh30-n AM1S-1212SH30-N am1s-1215sh30-n 5v10% 12v10% 24v10%
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