Renesas Electronics Corporation
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DA9098

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Ultra-low IQ Charger PMIC with 4-Output SIMO

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DA9098 Datasheet

Overview

DA9098 is a highly integrated, configurable, ultra-low quiescent current charger PMIC designed to meet the needs of TWS Systems (hearables), wearables, and other small Li-ion battery-operated applications. It features a 500mA linear battery charger with a power-path manager (PPM), a 4-output SIMO capable of delivering 400mA of total current, four LDOs, and a 3-channel LED driver. With its compact WLCSP package, DA9098 offers a complete set of robust protection features, a watchdog, additional GPIOs for system flexibility, and I2C control.

DA9098 provides up to 500mA charge current for fast charging cycles and offers several power-saving modes to optimize battery life whether the device is idle or in operation. With a programmable charge profile and dynamic power path management, it ensures efficient current distribution between the system and the battery for rapid charging. Additionally, DA9098 includes a battery monitor that enables on-demand monitoring of battery voltage, charge and discharge current, and temperature management. It is well-suited for small battery applications.

DA9098 Block Diagram
DA9098 Block Diagram
  • Increased battery life
    • 1.3μA IQ in deep sleep mode
  • Power saving modes optimized for storage and low-power operation
  • Multiple wake-up sources supported for maximum user flexibility
  • Charger and Power Path Management
    • Fast charge: 500mA (max) programmable charge current
    • Programmable pre-charge, fast charge, and termination conditions
    • Dynamic power path
    • Supports adaptive power source voltage to minimize power dissipation
  • 4-output 0.5V to 1.85V SIMO for total 400mA
  • Four LDOs
    • LDO1/2 VOUT: 0.5V to 1.2V, IOUT: 100mA (max)
    • LDO3 VOUT: 1.8V, IOUT: 20mA (max), IQ = 300nA (typ)
    • LDO4 VOUT: 1.2V to 3.3V, IOUT: 100mA (max)
  • Protection features
    • Over-voltage protection
    • Thermal shutdown protection
    • Over-discharge protection
  • LED driver current sinks
  • High integration and configurability
    • I2C enabled battery monitors
    • Charging status monitors
    • Compact 7x7 WLCSP package with 0.35mm ball pitch
  • TWS systems and hearables
  • Wearable devices: wireless headphones, fitness trackers, smart watches
  • Home automation devices: smoke detectors, smart thermostats, smart door locks
  • Health monitoring medical accessories
  • Rechargeable toys
  • High-efficiency, ultra-low power applications

Documentation

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Datasheet
DA9098 Datasheet
PDF 1.55 MB
1 item

Design & Development

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