DA9072中文資料瑞薩數(shù)據(jù)手冊(cè)PDF規(guī)格書

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 mAcapable

■ 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

□ I

2C 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