Custom Protection Circuit Module (PCM) for 6S Li-Ion Battery Pack at 70A limited with Thermostat (#12227)

Specification for P/N: PCM-LI21.6V70A

Features:

• It has multifunctional safety protection of over charge, over discharge, over current, short-circuited, temperature.
• It has balancing function under the state of charging.
• The FET temperature is lower than 90℃ after discharging for over 1 hour at 70A under ambient temperature 30℃
• Not support connection in series and parallel

No

Item

Protection Condition

Delay Time

Release Condition

1

Over Charge Voltage

4.25±0.10V

1s

4.15±0.10V

2

Under Discharge Voltage

2.75±0.10V

1s

3.00±0.10V

3

Over Current

OCD1 Threshold

200A±30A

500ms

Cut load,

auto recover

Short circuit protection

600A±30A

50-600us

Cut load,

auto recover

4

Over temperature

NTC

(1 built in, 2 external)

Over Temperature for Charging (OTC)

75±3°C

5s

55±3°C

Over Temperature for Discharging (OTD)

75±3°C

5s

55±3°C

MOSFET Over Temperature Threshold (OTF)

90±5°C

5s

65±15°C

Under Temperature for Charging (UTC)

0±3°C

5s

5±3°C

Under Temperature for Discharging (UTD)

-20±3°C

5s

-15±3°C

5

Cell Balancing

Cut in voltage

4.2±0.10V

Balance Current

68±10mA

6

Dimension

LxWxT: 120x65x22 mm

7

Impedance

≤10mΩ, from B- to P- and B+ to P+

8

Current Consumption

≤ 300uA, operation mode

9

Temperature

Working

-20 to 85°C

Storage

-40 to 125°C

10

Specification