DA9070中文資料瑞薩數(shù)據(jù)手冊(cè)PDF規(guī)格書

General Description

DA9070 is a highly integrated, configurable, low quiescent current PMIC that integrates the most

common needs for wearables, home automation and low power battery applications.

The Power Management IC (PMIC) comprises a linear charger with Power Path management, ultralow 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 10 μA 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 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.

DA9070 includes dynamic power path management which automatically balancing current delivered

to the system and battery charging.

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.

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 800nA 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

□ Wide output voltage boost regulator

(4.5V to 18 V)

□ I

2C enabled analog battery monitors for

Software 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