Product Name: NK. A battery protection board
Adapt products: NOKIA mobile phone battery
Two the scope of services:
1 / PCB component supporting the supply of plastic shell;
2 customers can open mold;
3 to provide customized services;
Three. Product advantages:
1 NOKIA mobile phone supporting the original design, excellent matching;
2 selection of Japanese brand IC, high detection precision, anti-jamming performance of antistatic / excellent;
3 excellent product design, greatly reduce the internal resistance of products;
4 imported MOSFET, a wide range of pressure;
5 anti-static packaging, shielding effectiveness, avoid electrostatic jihuai;
The 6.PCB gold plating process, excellent corrosion / wear resistance, thick process can be 48 hours salt fog test;
7 physical size precision, tolerance can be controlled within 0.1mm.
Four. Product features and main parameters:
1.FR4, lead-free gold plate;
2 provide a battery protection function: overcharge protection, over discharge protection, overcurrent protection, short-circuit protection function;
3 electrical parameters
The basic parameters
| Serial number | project | Symbol | Detailed content | standard |
| One | Overcharge protection | VDET1 | Overcharge detection voltage | 4.375 + 0.025V |
| Two | TVDET1 | Overcharge detection delay time | 500-1500ms |
| Three | VREL1 | Overcharge release voltage | 4.175 + 0.025V |
| Four | Over discharge protection | VDET2 | Over discharge detection voltage | 3 + 0.05V |
| Five | Tvdet2 | Over discharge detection delay time | 100-200ms |
| Six | VREL2 | Over discharge termination voltage | 3 + 0.05V |
| Seven | Overcurrent protection | VDET3 | Over current detection voltage | 0.080 + 0.015V |
| Eight | IDP | Overcurrent protection current | 1.5 ~ 4.5A |
| Nine |
| Release condition | Disconnect the load |
| Ten |
| Over current detection delay time | 1-20ms |
| Eleven | Short circuit protection |
| Protection conditions | External short circuit |
| Twelve |
| Release condition | Cut short circuit |
| Thirteen |
| Short circuit current detection delay time | 1-100us |
| Fourteen | internal resistance | RDS | The main loop on state resistance | VC=4.2V,RDS≤60mΩ |
| Fifteen | Current consumption | IDD | The internal circuit consumption during operation | Less than or equal to 6 mu A |
| Sixteen | 0V charging function |
|
| allow |
