Features
- 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
Description
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.
Product Comparison
Parameters
| Attributes | Value |
|---|---|
| Function | 4-ch SIMO PMIC |
| Outputs (#) | 8 |
| Input Voltage (Min) (V) | 2.5 |
| Input Voltage (Max) (V) | 5.5 |
| Output Current Max (A) | 0.4 |
| Battery Interface | Yes |
| Integrated Battery Charger | Yes |
| USB-Power Management | No |
| GPIOs (#) | 4 |
| Bus Voltage (Max) (V) | 5.5 |
| Integrated step-down DC/DC Converter Channels (#) | 4 |
| Comm. Interface | I2C |
Package Options
| Pkg. Type | Pkg. Dimensions (mm) | Lead Count (#) | Pitch (mm) |
|---|---|---|---|
| 49-WLCSP | 2.53x2.53 | 49 | 0.35 |
Applications
- 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