Battery Control System
详情介绍
Overview
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.
System Block Diagram
Battery Control System
Recommended Products
| MCU | Recommended Product |
ROM [Bytes] |
RAM [Bytes] |
Operating Frequency [MHz] |
Package [Pin Count] |
Features |
|---|---|---|---|---|---|---|
| Motor-generator control system Main MCU |
RH850/C1x | 2M-4M | 128K-240K | 240x2 (Lock Step) |
144-252 | ECM, CLMA, ECC, TSG3, CAN, 12-bit ADC, RDC2, EMU2 |
| V850E2/Px4 | 512K-1M | 40K-80K | 80-160 | 144 | DCLS* 1 , 32K-Data Flash, PWM output, 12-bit ADC, CAN, FlexRay | |
| SH72A0/A2 | 256K-512K | 32K-64K | 80-100 | 64-100 | 32K-Data Flash, PWM output, 12-bit ADC, CAN | |
| SH72AW/AY | 768K | 96K | 160 | 176 | 32K-Data Flash, RDC* 2 , PWM output, 12-bit ADC, CAN, Motor-IP | |
| Battery control system battery ManageMent MCU |
SH72A0/A2 | 256K-512K | 32K-64K | 80-100 | 64-100 | 32K-Data Flash, PWM output, 12-bit ADC, CAN |
| Battery control system cell Monitor MCU |
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 *3 , 150℃ |
| RL78/F13 | 16K-128K | 1K-8K | 24-32 | 20-80 | 4K-Data Flash, Motor Control Timer, CAN, LIN, 10-bit ADC 20ch, LVD, 150℃ | |
| RL78/F12 | 8K-64K | 0.5K-4K | 32 | 20-64 | 4K-Data Flash, LIN, 10-bit ADC 12ch, LVD, 125℃ | |
| R8C/5x | 32K-128K | 2.5K-10K | 32 | 48-64 | 4K-Data Flash, PWM出力, 10-bit ADC, CAN, LIN, LQFP | |
| R8C/3x | 16K-128K | 1.5K-10K | 20 | 20-80 | ||
| Battery charger/DC-DC control system Main MCU | RH850/P1x | 512K-2M | 64K-128K | 160 （Lock Step) |
100-144 | ECC, BIST, ECM, TSG3, CAN, 12-bit ADC, ICU-S |
| V850E2/Px4 | 512K-1M | 40K-80K | 80-160 | 144 | DCLS, 32K-Data Flash, PWM output, 12-bit ADC, CAN, FlexRay | |
| SH72A0/A2 | 256K-512K | 32K-64K | 80-100 | 64-100 | 32K-Data Flash, PWM output, 12-bit ADC, CAN |
| Analog/ Power Device |
Recommended Product |
Features |
|---|---|---|
| IGBT | Bare-die support products | Low Vce (sat) characteristics, high-speed switching characteristics |
| IGBT driver | R2A251xx ** |
With insulating function (micro-isolator), isolation voltage: 2.5KVrms, excessive current protection function, mirror clamp function, soft turnoff function, etc. |
| LiBCM-IC | R2Axxxxx | High-precision detection: ±4mV, high-speed measurement: 100µs/12 cells, passive cell balance (on-chip FETs), 2nd on-chip protection function |
| Power ManageMent IC | uPD168890 | Generation of system and MCU power supplies by DC/DC conversion from battery power supply, WDT function, safety functions |
| 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 |
* 1 DCLS: Dual Core Lock Step
* 2 RDC: RD Converter
* 3 LVD: Low Voltage Detection
**: In Planning Stage