Description
Model: GB-003
Product description: a new protection board specially designed for 18650 battery configuration
3.7V single or combined lithium battery plus wire protection board
Combined battery: parallel combined battery, the voltage remains unchanged, the current is added;
Assemble batteries in series, the current is unchanged, and the voltage is added.
The above quotation is the price of a single protection board, one edition is 20 pieces.
Single protection board size: 28mm*3mm;
Nickel strip size: 90mm*3mm;
Add line: line length 80mm; default red (color can be selected for large quantities)
Main functions: overcharge protection function, overdischarge protection function, short circuit protection function, overcurrent protection function
Features:
1 "Built-in high-precision voltage detection circuit
2 "Overcharge protection, over discharge protection, over current, short circuit protection
3》The charge and discharge of the battery can be controlled through the MOS tube
4》Wide operating temperature range −40°C ~ +55°C
5》Low current consumption
Detailed components: 2 MOS\DW01+\Seiko 8205A
DW01+ is a lithium battery protection circuit, which is designed to prevent the battery life from shortening or battery damage due to overcharging, overdischarging, and excessive current. It has a high-precision voltage detection and time delay circuit.
The advantage of the 8205A is that it integrates two identical nmos tubes, which is very convenient for lithium battery protection circuits.
technical parameter:
Test items
standard value
unit
Overcharge detection voltage
4.275±0.025
V
Overcharge recovery voltage
4.075±0.025
V
Overdischarge detection voltage
2.50±0.1
V
Overdischarge recovery voltage
2.90±0.1
V
Overcurrent protection current
2.8±0.3
A
Normal discharge current
2
A
Short circuit protection time
≤50
us
Self-consumption current for normal operation
≤6
uA
Self-consumption current in standby state
≤0.1
uA
Internal resistance at work
≤50
mΩ
