产品特点 FEATURES

1 Open-frame 16th-brick DC-DC converter compliant with DOSA specifications, can replace most existing eighth-brick converters to save board space and cost

2 Input voltage range:36-75 VDC; output:12 VDC @7A, fully isolated (basic insulation)

3 Key protections:Input undervoltage lockout, output overvoltage/overcurrent/short circuit (hiccup mode), overtemperature shutdown with hysteresis

4 Standard features:Remote ON/OFF (negative logic), remote sense (compensates voltage drop to load), output voltage trim (-20% to +10%), no minimum load requirement, startup into pre-biased load

5 Mechanical:Through-hole mounting, dimensions 0.9x1.3x0.374 inches, weight ~12.3g

6 Compliance:RoHS compliant, meets UL/CSA/IEC 62368-1 safety standards; with external filter, passes Class B conducted emissions per EN55032 and FCC requirements

7 Additional features:On-board input differential LC filter, withstands 100V input transient for 100ms, fixed-frequency operation

使用场景 APPLICATIONS

1 Telecom equipment (e.g., base stations, routers) using 48V battery buses

2 Networking and data center gear needing space-optimized power conversion

3 Industrial control systems and embedded devices requiring stable 12V output from 36-75V input

4 Applications where replacing eighth-brick converters to reduce board space and cost

5 Systems with pre-biased loads or no minimum load requirements (e.g., embedded systems)

注意事项 PRECAUTIONS

1 Remote sense: If not used, connect SENSE(+) to Vout(+) and SENSE(-) to Vout(-); do not exceed 10% voltage increase at converter output when using remote sense

2 Output trim: Do not exceed +10% trim (only guaranteed at Vin≥40V); leave TRIM pin open if no trimming is needed

3 Input stability: Use external 33µF electrolytic capacitor (ESR<1Ω) across input for high source impedance scenarios

4 Thermal management: Do not exceed derating curves; check component temps (FET junctions ≤125°C, transformer ≤125°C) near max load

5 Protection handling: Overload/short circuit triggers hiccup mode (restarts every 200ms); remove fault to resume operation

6 Safety: Follow input fuse guidelines (refer to Belfuse app note); do not exceed absolute max input voltage (80V)

7 EMC: Add external filter to meet Class B conducted emissions requirements

SSQE48T07120-NABNG-PDF数据手册-参考资料