PT6160-Multi-cell Battery Management Front End with I2C Interface 3~7节锂电池充放电管理系统  PDF文档下载
PT6160_3-7节锂电池充电应用方案 PDF文档下载
PT6160是一个高度集成的,用数字设备可编程、充电/放电管理IC,可以为3～7节锂电或磷酸亚铁锂电池充放电管理，用于便携式的电动工具或其他多电池系统。
PT6160电路可以带来一个可编程的分流电流高达200mA，而不需要外部电晶体。
PT6160由微处理器通过可编程接口I2C接口。输入电压为6~30V。QFN-24封装。(微桥整理)
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GENERAL DESCRIPTION
The PT6160 is a highly integrated, digitally programmable, charging/discharging management IC for 3 to 7 serially connected Li-Ion or LiFePO4, 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 200mA without the need of external transistors. The PT6160 buffers both DC and PWM (Pulse Width Modulation) MOSFET control signals generated from MCU to drive an electrical motor.
Key parameters in the PT6160 are programmable by a microprocessor through an I2C interfacing port, which features customers to achieve flexible and optimal multi-cell Li-ion/LiFePO4 battery charging/discharging progress control and safety protection. The package is QFN-24.
FEATURES
Charging Control
3~7 Li-ion or LiFePO4 battery cells system
Cell balancing with programmable shunt currents up to 200mA
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
200mA maximum MOSFET gate driving current
Load protection to prevent discharging on short-circuit or light load between two terminals connected to the motor
MCU Interfacing
A 10-bit ADC samples up to 7 individual cell voltages, environmental temperature, and discharge current.
ADC sampling time <20ms through all channels
ADC fail bit indicates overflow
100 kHz I2C communication port
2 seconds watchdog function for MUC.
5~3.2V supply voltage to MCU
Other Protections
6V under voltage lockout voltage (UVLO)
Protected from <1.0ms negation glitch toward ground generated from battery pack
Internal over temperature shutdown (TSD)
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