A battery control system is used for managing remaining battery voltage and control of battery charging. The voltages of the individual cells are monitored and the balance controlled by a battery cell monitor MCU and lithium-ion battery cell monitor ICs. Battery management MCUs provided by Renesas can perform management of remaining battery voltage and battery charge control. In addition to battery cell monitor MCUs, Renesas supplies analog and power devices suitable for battery control systems.
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*BMIC: Battery Management IC
Related Products
Microcontrollers
| Recommended Product |
ROM (Bytes) |
RAM (Bytes) |
Operating Frequency (MHz) |
Package (Pin Count) |
Features | |
|---|---|---|---|---|---|---|
| Battery Control System Battery Management 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 output, 12-bit ADC, CAN | |
| Battery Control System Cell Monitor MCU |
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 | |
| LiBCM-IC | ISL78714 | Monitors and manages up to 14 cell voltages with ±2mV measurement accuracy, fully differential cell input range of ±5V accommodates bus bar measurement requirements, high diagnostic coverage for cell voltage and temperature measurements |
| 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 |