OZ9350中文资料an AFE IC for 4-7 cell battery pack applications数据手册O2Micro规格书

描述 Description

OZ9350 is an AFE IC for 4-7 cell battery pack applications. It is designed to work with a host microcontroller and it’s Analog-to-Digital Converter (ADC).

OZ9350’s internal analog multiplexer level shifts and conditions the individual cell voltages becoming a ground referenced signal, that a microcontroller can directly measure, increasing accuracy, eliminating discrete components and simplifying analog design.

特性 Features

• Analog Front End (AFE) with Cell Balance and I2C communications with a microcontroller
• Input: 4–7 cells series connected; Lithium Ion (Li-Ion), Li-Polymer,Phosphate and Lead acid (PbA) battery cells
• Output: Multiplexes and level shifts individual cell, battery pack, and chip internal temperature voltages to an analog output for a host microcontroller
• I2C BUS serial communication with host microcontroller
• Fast analog: Voltage output stable within 100μs after channel selection
• Integrated reverse voltage protection (0.9V typical threshold) to prevent cell damage
• Integrated Under-Voltage Lockout (UVLO) protection
• Integrated cell balance drivers eliminate external components
• 3.3V LDO with 25mA output drive ability to power microcontroller
• Integrated charge MOSFET driver (P-channel in high side or N-channel in low side) and discharge N-channel MOSFET driver (low side)
• Low power consumption modes: Full power < 80μA, Sleep < 10μA (5μA typical value at 25°C), and Power down < 1μA (0.1μA typical value at 25°C)

应用 Application

• Electric Bicycle
• Power Tool
• Battery Backup System
• Hybrid Vehicle
• Portable Test Equipment
• Medical System
• Military Electronics