PT6105
PT6105 is Multi-cell Battery Management Front End manufactured by Powtech.
Multi-cell Battery Management Front End with I2C Interface
GENERAL DESCRIPTION
The PT6105 is a highly integrated, digitally programmable, charging/discharging management IC for 3 to 7 serially connected Li-Ion or Li Fe PO4, batteries used in portable electrical tools or other multi-cell battery powered systems. It contains a multi-channel 10-bit ADC digitizing battery voltages, environment temperature, and battery discharge current. The converted data is transferred to MCU via I2C interface and is used for battery balancing and safety protections against battery over-voltage, under-voltage, discharging over current, and over temperature. The integrated battery balance circuitry could deliver a programmable shunt current as high as 200m A without the need of external transistors. The PT6105 buffers both DC and PWM (Pulse Width Modulation) MOSFET control signals generated from MCU to drive an electrical motor.
Key parameters in the PT6105 are programmable by a microprocessor through an I2C interfacing port, which Features customers to achieve flexible and optimal multi-cell Li-ion/Li Fe PO4 battery charging/discharging progress control and safety protection. The package is QFN-24.
PIN ASSIGNMENT
24 23 22 21 20 19
CH_FET
VB7
DS_FET
VB6
VB5
PT6105 QFN24
DS_CS
DS_REF
VB4
14 SDA
VB3
7 8 9 10 11 12
Features
Charging Control 3~7 Li-ion or Li Fe PO4 battery cells system Cell balancing with programmable shunt currents up to 200m A Accurately sensing battery cell voltages and temperature through a 10-bit ADC. MCU controlled protection cutoff voltages.
Discharging Programmable discharge over-current or short-circuit protection thresholds MCU controlled battery under-voltage protection thresholds 10~15V PWM or DC MOSFET gate driving voltages 200m A maximum MOSFET gate driving current Load protection to prevent discharging on short-circuit or light load between two terminals connected to the motor...
