7s 10A PCM BMS for 24V 25.2V 25.9V Li-ion/Lithium/ Li-Polymer 21V 22.4V LiFePO4 Battery Pack with Smbus(PCM-L07S10-D43)
Product Description
Technical parameter
Product name:Protection Circuit Module
Model No:PCM-L07S10-D43
For 7S Lithium-ion/Lithium Polymer/LiFePO4 Battery Packs
Product Feature:
1. Suitable for 7 section Lithium-ion/Lithium Polymer/LiFePO4 Battery Packs;
2. Same charging/discharging interface, working current 10A;
3. Overcharge, overdischarge, short circuit, overcurrent, temperature protection, etc.;
4. Temperature switch detects battery temperature and controls discharge MOSFE;
5. The metering IC adopts BQ78350, which can read the parameters such as voltage, capacity, current, temperature and cycle number;
6. The required information can be read through the display screen of model PCM-LCD001-415;
7. SMBus communication protocol.
| Protection Circuit Module Specifications For 21V LiFePO4 Battery Packs | |||
| No | Test item (Test at normal temperature 25±2ºC and relative humidity≤90%) | Criterio | |
| 1 | Communication Interface | SMBus/I2C | |
| 2 | Capacity | Designing battery capacity(PCM) | 10.40Ah |
| Max capacity(Battery pack) | 320Ah | ||
| Min capacity(Battery pack) | 100mAh | ||
| External capacity Indication | LCD,LED,SOC | ||
| Gas gauge algorithm | CEDV algorithm | ||
| 3 | Voltage | Charging voltage | DC: 25.2V CC/CV(3.6V/1cell) |
| Cell-balance detection voltage (Charge balance) | 3.6V±0.03V | ||
| Cell-balance release voltage | 3.5V±0.025V | ||
| Cell-balance detection delay time | 0.96~1.4s | ||
| 4 | Current | Balance current for single cell | 84±5mA |
| Current consumption for single cell | ≤20μA | ||
| Normal operating-mode current (Gas Gauge IC) | 650 uA | ||
| SLEEP operating-mode current (Gas Gauge IC) | 300 uA | ||
| FULL SLEEP operating-mode current (Gas Gauge IC) | 0.1 uA | ||
| Maximal continuous charging current | 10A | ||
| Maximal continuous discharging current | 10A | ||
| 5 | Over charge Protection | Over charge detection voltage | 3.900 ± 0.025 V |
| Over charge detection delay time | 0.5S~1.5S | ||
| Over charge release voltage | 3.600 ± 0.050 V | ||
| 6 | Over discharge protection | Over discharge detection voltage | 2.00 ± 0.080 V |
| Over discharge detection delay time | 50~150ms | ||
| Over discharge release voltage | 2.70 ± 0.100 V | ||
| 7 | Over current protectio | Over current detection voltage | 0.2±0.015V |
| Over current detection current | 25±5A(adjustable) | ||
| Detection delay time | 5~20ms | ||
| Release condition | Cut load | ||
| 8 | Short protectio | Detection condition | Exterior short circuit |
| Detection delay time | 200-800us | ||
| Release condition | Cut load | ||
| 9 | Resistance | Protection circuitry (MOSFET) | ≤40mΩ |
| 10 | Temperatur | Operating Temperature Range | -40~+85ºC |
| Storage Temperature Range | -40~+125ºC | ||
| Dimension | L242.5*W62*T10mm | ||
| B+:Battery+ | |||
| B-:Battery- | |||
| SMBD:SMBus data line | |||
| SMBC:SMBus clock line | |||
| P+:discharge+ | |||
| P-:discharge- | |||
| CH+:Charge+ | |||
| CH-:Charge- | |||
| Communication mode: | |||
| 1. RS232,RS485 Conversion board: | |||
| 2. LCD (PCM-LCD001-415) | |||