View Issue Details
| ID | Project | Category | View Status | Date Submitted | Last Update |
|---|---|---|---|---|---|
| 0001320 | Hardware for PC and servers | [All Projects] General | public | 2020-05-01 10:24 | 2020-05-01 11:07 |
| Reporter | DigitalMy | ||||
| Priority | normal | Severity | minor | Reproducibility | have not tried |
| Status | assigned | Resolution | open | ||
| Summary | 0001320: Repair battery Sony VGP-BPS24 | ||||
| Description | Rechargeable battery pack 11.1V 4400mAh 49Wh lithium ion 6pcs 35W US496764E 1S (3 pairs 3.7V) Cannot be detected by laptop computer Sony SVS15 Connector is 7-pin in one row, same Sony battery used in laptops VPCSA VPCSB VPCSE SVS13 series | ||||
| Tags | No tags attached. | ||||
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battery connector: TP267 - BT+_Load TP268 - BATT_ID TP269 - DAT_SMB TP270 - CLK_SMB TP271 - BATT_PRS#_1 TP272 - SYS_PRS#_1 TP273 - GND |
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VREF=3.3V->VDAC Vbat=cell count*[4V+0.5*(Vadj/Vvadc)]=12.48V (Vbat=4.2V when Vadj connected to REGN) ACP and ACN connections must be make using Kelvin-sense connections Icharge=(Vsrset/Vvdac)*(0.1/PR15)=1.5A Iadapter=(Vacset/Vvdac)*(0.1/PR4)=4.4A IADAPT=(Vacp - Vacn)*20 Input OCP: (VACP-VACN)max/PR4=100mV/20mohm=6.6A Input OVP : 22.2V ENCHG# : Enable ==> L Disable ==> H Input UVP : 17V Battery OCP : Icharge*145% Battery OVP : Vbat*104% Pre-charge : <2.9V/cell ===> Icharge/8 ACGOOD# : Vacdet > 2.4V ==> L Vacdet < 2.4V ==> H Battery OTP : Tshut=155 degree Fsw : 300KHz |
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Control board is double layer CN601 EP GW 1-887-310-11 OPC 94V0 EF-15 with thermistor 103FP0 with chip bq8050 -> find firmware and load to chip |