This system is designed for telecom DC uninterrupted power supply (UPS) applications. New telecom UPS applications are utilizing Li-ion/Lead-carbon batteries to replace the original Lead-acid ones. As a result, they will need a platform capable of either charging the battery or powering the traditional -48V telecom system. Our system includes high-performance buck-boost controllers, MCUs, and power devices to achieve bi-directional power conversion, making it a competitive option.

System Benefits:

  • High-performance buck-boost controller allows for high-performance bi-directional power conversion.
  • Renesas hardware and software support enhanced platform competitiveness.
  • Our system is designed to simplify and expedite the development process, reducing time to market.




  • DC UPS
  • Base Station Power
  • Digital Module

Winning Combinations Interactive Diagram

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4:3 ratio Sheet.269 Sheet.270 Sheet.1 Sheet.2 Sheet.3 Sheet.4 CN048 CN048 CN048 Sheet.174 Sheet.175 Sheet.176 Sheet.177 Sheet.178 GND GND GND R1 R1 R1 To MCU To MCU To MCU IBUS IBUS IBUS Sheet.185 Bidirectional Isolated DC/DC Converter Bidirectional Isolated DC/DC Converter Bidirectional Isolated DC/DC Converter Connector 1.167.187 Sheet.190 Sheet.214 Sheet.222 Sheet.223 Sheet.224 Sheet.225 Sheet.226 R2 R2 R2 Shunt.219 Sheet.220 Sheet.221 Shunt Sheet.39 Sheet.37 Connector 1.167.233 To MCU To MCU To MCU VBAT VBAT VBAT Sheet.236 Sheet.237 IBAT IBAT IBAT Sheet.239 Buck 1 Buck Buck Sheet.241 Sheet.242 Buck 2 Buck Buck 12V to Fan 12V to Fan 12V to Fan 12V to ISL81801 EXTEIAS 12V to ISL81801 EXTEIAS 12V to ISL81801 EXTEIAS Sheet.248 Sheet.249 Sheet.250 5V 5V 5V Isolated CAN & 485 Isolated CAN & 485 Isolated CAN & 485 Sheet.261 Sheet.262 Sheet.263 Sheet.264 VBus VBus VBus IBus IBus IBus VBat.267 VBat VBat IBat.268 IBat IBat TMon TMon TMon Fan Control Fan Control Fan Control Transformer Inductor Coreless (Air conductor).280 Sheet.281 Sheet.282 Sheet.283 Sheet.284 Sheet.285 Sheet.286 Sheet.287 Sheet.288 Sheet.289 Q5 Q5 Q5 Sheet.291 Sheet.292 Sheet.293 Sheet.294 Sheet.295 Sheet.296 Sheet.297 Sheet.298 Q6 Q6 Q6 Sheet.300 Sheet.301 Sheet.302 Sheet.303 Sheet.304 Sheet.305 Sheet.306 Sheet.307 Sheet.308 Connector 1.309 Sheet.310 Sheet.311 Sheet.312 Q7 Q7 Q7 Sheet.314 Sheet.315 Sheet.316 Sheet.317 Sheet.318 Sheet.319 Sheet.320 Sheet.321 Sheet.322 Q8 Q8 Q8 Sheet.324 Sheet.325 Sheet.326 Sheet.327 Sheet.328 Sheet.329 Sheet.330 Sheet.331 Connector 1.332 Sheet.334 Sheet.335 Sheet.336 Controller 2 Controller Controller Connector 1.340 Sheet.341 Sheet.342 Sheet.343 Sheet.344 L2 L2 L2 Connector 1.346 Diode Sheet.41 Sheet.42 Sheet.43 Transformer Inductor Coreless (Air conductor) Sheet.59 Sheet.60 Sheet.61 Sheet.62 Sheet.63 Sheet.64 Sheet.65 Sheet.66 Sheet.67 Q1 Q1 Q1 Sheet.120 Sheet.121 Sheet.122 Sheet.123 Sheet.124 Sheet.126 Sheet.128 Sheet.129 Sheet.132 Q2 Q2 Q2 Sheet.135 Sheet.136 Sheet.138 Sheet.139 Sheet.140 Sheet.141 Sheet.142 Sheet.143 Sheet.145 Connector 1.146 Sheet.147 Sheet.148 Sheet.149 Q3 Q3 Q3 Sheet.151 Sheet.152 Sheet.153 Sheet.154 Sheet.155 Sheet.156 Sheet.157 Sheet.158 Sheet.159 Q4 Q4 Q4 Sheet.161 Sheet.162 Sheet.163 Sheet.164 Sheet.165 Sheet.166 Sheet.167 Sheet.168 Connector 1.169 Sheet.170 Sheet.171 Sheet.172 Sheet.184 Sheet.188 Connector 1.167.189 Controller 1 Controller Controller Connector 1.167.195 Connector 1.167.196 Connector 1.167.198 Sheet.199 Sheet.200 Sheet.201 Sheet.202 L1 L1 L1 Connector 1.167.204 Sheet.205 Connector 1.167.206 Sheet.207 Connector 1.167.208 Sheet.211 Sheet.209 Capacitor Non-polarized .53 Sheet.56 Sheet.57 Connector 1.167.212 Sheet.213 Sheet.45 Sheet.46 Sheet.47 Transformer Inductor Coreless (Air conductor).362 Sheet.363 Sheet.364 Sheet.365 Sheet.366 Sheet.367 Sheet.368 Sheet.369 Sheet.370 Sheet.371 Q9 Q9 Q9 Sheet.373 Sheet.374 Sheet.375 Sheet.376 Sheet.377 Sheet.378 Sheet.379 Sheet.380 Q10 Q10 Q10 Sheet.382 Sheet.383 Sheet.384 Sheet.385 Sheet.386 Sheet.387 Sheet.388 Sheet.389 Sheet.390 Connector 1.391 Sheet.392 Sheet.393 Sheet.394 Q11 Q11 Q11 Sheet.396 Sheet.397 Sheet.398 Sheet.399 Sheet.400 Sheet.401 Sheet.402 Sheet.403 Sheet.404 Q12 Q12 Q12 Sheet.406 Sheet.407 Sheet.408 Sheet.409 Sheet.410 Sheet.411 Sheet.412 Sheet.413 Connector 1.414 Sheet.416 Sheet.417 Sheet.418 Controller 3 Controller Controller Connector 1.420 Sheet.421 Sheet.422 Sheet.423 Sheet.424 L3 L3 L3 Connector 1.426 Sheet.428 Sheet.429 Sheet.430 Sheet.432 Connector 1.167 Sheet.434 Connector 1.167.435 Sheet.436 Connector 1.167.437 Sheet.438 Connector 1.167.439 -48V -48V -48V Sheet.442 Sheet.443 Sheet.444 Sheet.446 Sheet.447 Sheet.448 Sheet.449 Sheet.450 Sheet.451 Sheet.452 Sheet.453 Sheet.454 Sheet.455 Sheet.274 Sheet.456 CC/CV Drop Control CC/CV Drop Control CC/CV Drop Control On/Off Control On/Off Control On/Off Control Sheet.459 Sheet.460 Capacitor Non-polarized Sheet.49 Sheet.50 Sheet.52 Sheet.51 AMP Amp Amp Amplifier Amp Amp Sheet.463 MCU MCU MCU PWM PWM PWM GPIO GPIO GPIO GPIO GPIO GPIO GPIO GPIO GPIO ADC ADC ADC CAN CAN CAN
Exiting Interactive Block Diagram