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DIO59618A Datasheet(PDF) 1 Page - DIOO MICROCIRCUITS CO., LTD |
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DIO59618A Datasheet(HTML) 1 Page - DIOO MICROCIRCUITS CO., LTD |
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1 / 33 page  DIO59618A Version 1.0, Oct 2025 www.dioo.com © 2025 Dioo Microcircuits Co., Ltd. Jiangsu I 30 V, 1.5 A High Efficiency Single-cell Li-Ion Battery Charger with Integrated Power Path Features Build in power path NFETs and power switches 1.0 MHz switching frequency operation Trickle current/constant current/constant voltage charge mode with internal compensation Maximum 1.5 A charge current Up to 93% efficiency in boost mode Up to 93% efficiency in buck mode ±0.5% cell voltage accuracy Programmable charge current Programmable output voltage Dynamic power management 2 independent discharge channels Input voltage UVLO and OVP Supports bidirectional communication Boost output short circuit protection The current accuracy is up to 5% Multiple-output pin with VBAT, IBAT, IVOR, IVOL, NTC Integrate a 3.0 V/30 mA LDO for external MCU Safety-related certification: lEC 62368-1 Applications True wireless stereo headphones Tablet, portable media players Electronic cigarettes Smart video doorbell Package Information Description The DIO59618A is a highly integrated power management IC that integrates functions such as Buck, Boost, power path management, LDO, two independent discharge management, and independent detection for load. In addition, the chip integrates temperature protection, input overvoltage, faulty battery, and charging timeout protection, making the charging process very safe and reliable. The DIO59618A supports charging and discharging voltage and current regulation through I2C communication, it integrates two output current limiting switches and provides independent load presence and access detection. The DIO59618A integrates communication ports, enabling high-speed communication between the MCU and earphones, greatly simplifying peripheral components and circuits. The DIO59618A synchronous boost system supports a maximum output current of 1 A with an efficiency of up to 93%. It also supports low quiescent power consumption, which can be as low as 1 μA in ship mode. Simplified Schematic Part Number Package Body Size DIO59618A QFN-20 3 mm × 3 mm |
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