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DA9072 Datasheet(PDF) 1 Page - Dialog Semiconductor |
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DA9072 Datasheet(HTML) 1 Page - Dialog Semiconductor |
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1 / 113 page  DA9072 Ultra-Low Quiescent Current PMIC Datasheet Revision 3.0 14-Jun-2021 CFR0011-120-00 1 of 113 © 2021 Dialog Semiconductor General Description DA9072 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, analog battery monitor, watchdog and protection features in an I2C configurable compact WLCSP package. DA9072 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 (efficient down to 10 µA load currents) and low IQ LDOs. The uncommitted inputs of LDOs can be connected to either the battery or buck output. DA9072 provides charge current up to 500 mA 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. DA9072 includes dynamic power path management which automatically balances current delivered to the system and for battery charging. Suitable for small battery applications, the battery monitors facilitate on-demand battery voltage and discharge current information to an external MCU’s ADC to support software-based fuel gauging. Key Features ■ Increased battery life □ 800 nA (no load, total battery current) buck converter, programmable down to 0.6 V, 300 mA-capable □ Three configurable 800 nA quiescent current LDOs/load switches, 150 mA- capable ■ Power saving modes optimized for storage and operation ■ Battery protection □ Battery thermal- and over-discharge protection □ 20 V tolerant input □ Automatic battery temperature monitoring in all operation modes ■ Configurable battery monitors □ Battery current (IMON) □ Battery voltage (VBAT_DIV) □ Battery temperature (TEMP_SNS) ■ High integration and configurability □ I2C enabled analog battery monitors for software-based fuel gauging □ Watchdog input and power cycling to prevent system stall □ Reset input and status outputs □ Low external component count □ Compact 42 pin, 2.97 mm x 2.66 mm WLCSP package ■ Fast charge □ 500 mA (max) charge current; 2 mA (min) □ Programmable pre-charge, fast charge, and termination voltage □ Dynamic power path balances multiple power sources □ Termination current programmable down to 500 µA □ ±0.5 % accurate termination voltage Applications ■ Wearable devices - fitness trackers, smart watches, wireless headphones ■ Home automation devices - smoke detectors, smart thermostats, smart door locks ■ Health monitoring medical accessories ■ Rechargeable toys ■ High efficiency, ultra-low power applications |
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