pt6105 China Resources Powtech (Shanghai) Co., Ltd, pt6105 Datasheet - Page 3

• Manufacturer Part Number: pt6105
• Description: Multi-cell Battery Management Front End With I 2 C Interface
• Manufacturer: China Resources Powtech (Shanghai) Co., Ltd

flyback voltage from the motor windings, when the
CH_FET is opened suddenly for over current or short
circuit shut-down.
The only positive power supply voltage terminal of the
chip is VIN. D1, C1, and C2 are added to stabilize the
chip power supply in case of a positive or negative
voltage surge coming from the battery or motor. GNDA
and GNDD are internally generated supplies. “VB0” is
connected to ground but is only used for the
measurements of VB1 and external temperature.
China Resources Powtech (Shanghai) Limited
PT6105_DS Rev EN_1.1
Figure 2. Typical application of PT6105 for 7 Li-ion battery cells
WWW.CRPOWTECH.COM
Rt is a thermal resistor to sense the battery pack
temperature. R5 and R6 are used for linearization. R4
and C4 filter noise added on the sensed discharge
current and provide a certain time delay for over
current protection., R8 and D5 are used for the
protection of chip DS_CS input from the transient high
voltage impulse when the system begins discharging
operation.
D1 is suggested to be removed if there are only three
batteries.
Multi-cell Battery Management
Front End with I
PT6105
2
C Interface
Page 3