Features
- 2.5V to 5.5V operating range
- 22V tolerant, 500mA linear battery charger with power path
- Battery protection during charging and discharging
- 300mA buck converter with 900nA quiescent current
- 3x 150mA LDO/load switches with 800nA quiescent current
- Boost regulator with 4.5V to 18V output range
- Current and voltage monitors for battery fuel gauge
- Dedicated watchdog and reset inputs
- I2C Interface
- Package: WLCSP-42 (2.97mm x 2.66mm)
Description
The DA9070 is a highly integrated, configurable, low quiescent current power management IC (PMIC) that integrates the most common needs for wearables, home automation and low power battery applications. The PMIC comprises a linear charger with power path management, ultra-low quiescent current (Iq) buck regulator and LDO/load switches, wide output voltage boost regulator, analog battery monitor, watchdog and protection features in an I2C configurable compact WLCSP package.
DA9070 has several power saving modes to increase battery life whether the product sits on the shelf or is in operation. Further savings in power are achieved with the ultra-low Iq buck converter that is efficient down to 10μA load currents and low Iq LDOs. The uncommitted inputs of LDOs can be connected to either the battery or buck output. The integrated, high-efficiency boost regulator supports both sensors and display supply needs with a wide range configurable output voltage. DA9070 provides charge current up to 500mA to speed up the charge cycle. The charge profile is programmable by external resistors or in software, allowing either stand-alone operation or host control.
DA9070 includes dynamic power path management which automatically balances current delivered between the system and the battery. Suitable for small battery applications, the battery monitor facilitates on-demand battery voltage and discharge current monitors to an external MCU’s ADC for supporting software fuel gauging.
Benefits
- Flexible charger supports slow and fast charging rates
- Low quiescent current buck regulator and LDOs extend battery life
- Integrated PMIC reduces power management footprint by 25% compared to discrete solutions
- Programmable power states optimize performance in operating modes and extend battery life in storage modes
Parameters
| Attributes | Value |
|---|---|
| Qualification Level | Standard |
| Product Type | MPU |
| Total step-down DC/DC converter channels (#) | 4 |
| Step-up DC/DC converter Channels (#) | 1 |
| Input Voltage (Min) (V) | 2.5 |
| Input Voltage (Max) (V) | 5.5 |
| Bus Voltage (Max) (V) | 22 |
| Output Current Max (A) | 0.3 |
| Outputs (#) | 5 |
| Function | 5-ch PMIC |
| Comm. Interface | I2C |
| Battery Interface | Yes, integrated charger |
| GPIOs (#) | 0 |
| Integrated Battery Charger | 0.5 |
| Switching Frequency (MHz) | 3 - 3 |
Package Options
| Pkg. Type | Lead Count (#) | Pitch (mm) |
|---|---|---|
| WLCSP | 42 | 0.4 |
Applications
- Fitness trackers
- Smartwatches
- Wireless headphones
- Portable medical
- Personal health monitors
- Portable gaming
- Wireless earbud cradles
- Home automation
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Support Communities
-
Driver source code for DA9070
Hello, Can you provide me access to driver source code or I2C documentation for DA9070? There is not much info in the datasheet. Thanks
Aug 24, 2023 -
DA9070 source code
Hello, I'm looking for the STM32 firmware of the DA9070 evaluation board or anything else that can help me build my own firmware. Best regards, MBUND
Jan 12, 2021 -
DA9070 outputs only 1 voltage
Hello, We have received samples preconfigured with the OTP profile 9. The customer has tested the samples but only Vsys outputs the input. all other outputs are at ground level. Do you have an idea why ? Here is the schematics Best regards,
Jul 28, 2020
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