A charger and DC/DC step-up system controls the AC input from the household power supply and boosts the voltage to that required by the battery using a DC/DC circuit. The MCU performs both Power Factor Correction (PFC) control and control of the DC/DC step-up circuit. In addition to battery cell monitor MCUs, Renesas supplies analog and power devices suitable for battery charger and DC/DC control systems.
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*1PMIC: Power Management IC
*2PFC: Power Factor Correction
Microcontrollers
| Recommended Product |
ROM [Bytes] |
RAM [Bytes] |
Operating Frequency [MHz] |
Package [Pin Count] |
Features | |
|---|---|---|---|---|---|---|
| Battery Charger-DC/DC Control System Main MCU |
RH850/U2A16 | - | - | - | - | - |
| RH850/P1x | 512K-2M | 64K-128K |
160 |
100-144 | ECC, BIST, ECM, TSG3, CAN, 12-bit ADC, ICU-S | |
| RH850/F1H |
3072-6144 |
320-576 |
2x120 |
176-272 |
CAN 7ch, LIN, FlexRay, Ethernet, ICU *1 |
|
| RH850/F1L |
256-2048 |
32-192 |
96 |
48-176 |
CAN 6ch, LIN, ICU *1 |
|
| RH850/F1K | 768-2048 | 96-192 | 120 | 100-176 | CAN/CAN FD 6ch, LIN, ICU *1 | |
| RH850/F1KM-S1 | 512-1024 | 64-128 | 120 | 48-100 | CAN/CAN FD 6ch, LIN, ICU *1 | |
| RH850/F1KM-S4 | 3072-4096 | 384-512 | 240 | 100-272 | CAN/CAN FD 8ch, LIN, FlexRay, Ethernet, ICU *1 | |
| RH850/F1KH-D8 | 6144-8192 | 896 | 2x240 | 176-324 | CAN/CAN FD 12ch, LIN, FlexRay 2ch, Ethernet 2ch, ICU *1 | |
| SH72A0, SH72A2 | 256K-512K | 32K-64K | 80-100 | 64-100 | 32K Data Flash, PWM出力, 12-bit ADC, CAN | |
| RL78/F13 | 16K-128K | 1K-8K | 24-32 | 20-80 | 4K Data Flash, motor control timer, CAN, LIN, 10-bit ADC 20ch, LVD*2, 150 °C | |
| RL78/F14 | 48K-256K | 4K-20K | 24-32 | 30-100 | 8K Data Flash, motor control timer, CAN, LIN, 10-bit ADC 31ch, 8-bit DAC, comparator, LVD*2, 150 °C | |
| RL78/F15 | 128K-512K | 10K-32K | 32 | 48-144 | Motor control timer (Timer RD), CAN 2ch, LIN 3ch, IEBus, ADC, DAC, comparator, 8/16KB Data Flash 8KB/16KB |
* 1 ICU: Intelligent Cryptographic Unit
* 2 LVD: Low Voltage Detection
Analog/Power Devices
| Analog/ Power Device |
Recommended Product |
Features |
|---|---|---|
| IPD | uPD166023T1J | 42V/12mΩ, 12-pin power HSSOP, single channel, high-side IPD, protection function, proportional load current sensing |
| uPD166027T1J | 42V/35mΩ, 12-pin power HSSOP, dual channel, high-side IPD, protection function, proportional load current sensing | |
| IGBT driver | R2A25110KSP | With insulating function (micro-isolator), isolation voltage: 2.5KVrms, excessive current protection function, mirror clamp function, soft turnoff function, etc. |
| LiBCM-IC | ISL78714 | 14-cell battery monitor IC, cell voltage measurement accuracy ±2mV |
| Power Management IC | RAA270000KFT | Ideal power solution for the RH850/E1x/C1x. Integrated fault diagnosis and monitor functions |
| RAA270005KFP | Ideal power solution for the RH850/P1x (with built in voltage regulator for the MCU’s core). Integrated fault diagnosis and monitor functions. Supports cranking operation | |
| Op-amp | READ2351JSP | Full range input/output, low power consumption |
| READ2352JSP | Full range input/output, high slew rate | |
| UPC1251/UPC451 | Low power consumption | |
| UPC842/UPC844 | High slew rate | |
| Comparator | UPC277/UPC177 | Low power consumption |