bq76925

Product Folder Sample & Buy Technical Documents Tools & Software Support & Community bq76925 SLUSAM9D – JULY 2011 – REVISED OCTOBER 2016 bq76925 Host-Controlled Analog Front End for 3-Series to 6-Series Cell Li-Ion/Li-Polymer Battery Protection and Gas Gauging Applications 1 Features 1 Analog Interface for Host Cell Measurement – Cell Input MUX, Level Shifter, and Scaler – 1.5-/ 3.0-V Low-Drift, Calibrated Reference Allows Accurate Analog-to-Digital Conversions Analog Interface for Host Current Measurement – Variable Gain Current Sense Amplifier Capable of Operation with 1-mΩ Sense Resistor Switchable Thermistor Bias Output for Host Temperature Measurements Overcurrent Comparator With Dynamically Adjustable Threshold – Alerts Host to Potential Overcurrent Faults – Wakes up Host on Load Connect Integrated Cell Balancing FETs – Individual Host Control – 50 mA per Cell Balancing Current Supports Cell Sense-Line Open Wire Detection Integrated 3.3-V Regulator for Powering Micro- Controller or LEDs I2C Interface for Host Communications – Optional Packet CRC for Robust Operation Supply Voltage Range From 4.2 to 26.4 V Low Power Consumption – 40 µA Typical in Normal Mode – 1.5 µA Maximum in Sleep Mode 20-Pin TSSOP or 24-Pin VQFN Package 2 Applications Primary Protection in Li-Ion Battery Packs – Cordless Power Tools – Light Electric Vehicles (E-Bike, Scooter, and so forth) – UPS Systems – Medical Equipment – Portable Test Equipment 3 Description The bq76...