General Description

DA9168 is a configurable Battery Management IC (BMIC) with integrated dual LDOs and reverse boost to support USB-OTG. The extremely low quiescent current consumption in a very compact footprint makes it ideally suited for a multitude of space conscious, battery powered consumer applications. The fast-growing hearable segment for True Wireless Stereo (TWS), wearable segment for smart watches, and a range of smart home applications such as smart cameras are examples where the DA9168 is an extremely good fit.

The device comprises a high-efficiency switch mode charger with power path management capable of supporting up to 1.5 A charge current, dual LDOs that can be configured as load switches, and high-efficiency reverse boost functionality.

DA9168 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 reverse boost converter that is efficient down to 60 μA load currents with low power LDOs.

Key Features

■ High-efficiency, synchronous switch mode

buck charger

□ 92 charge efficiency at 0.5 A

□ Pulse frequency modulation (PFM) mode

for light load operations

■ Reverse current mode from VMID to VBUS

□ Reverse boost with up to 0.7 A output

□ 90 reverse boost efficiency at 1 mA to

10 mA; 95 reverse boost efficiency at

10 mA to 100 mA output

□ PFM mode for light load operations

■ Single input to support USB input and high

voltage adapters

□ Supports 4.0 V to 10.0 V input voltage

□ Programmable input current limit (IINDPM)

with I2C (100 mA to 2.5 A, 100 mA/step) to

support USB 2.0, USB 3.0 standards and

high voltage adaptors

□ Programmable input voltage limit

(VINDPM) range 3.8 V to 4.8 V

■ Flexible I2C configuration and autonomous

charging for optimal system performance

■ Integrates two LDOs / load switches

□ LDO output range 1.6 V to 5.2 V, 350 mA

max load

□ Load switch 350 mA max load

■ High integration includes all MOSFETs,

current sensing, and loop compensation

■ Low RDS_ON < 19 mΩ (typ) BATFET to extend

battery life

□ BATFET control to support Ship mode,

wake up and full system reset

■ 15 μA low battery leakage current with system

voltage standby

■ 0.1 μA (typ) leakage current in Ship mode

■ High accuracy battery charging profile

■ High integration and configurability

□ I2C enabled battery temperature monitors

□ Watchdog feature and power cycling to

prevent system stall

□ Reset input and Interrupt (INT_N) outputs

□ Compact, 30 pin, 2.5 mm x 2.1 mm x

0.4 mm WLCSP package

■ Fast charge

□ Max 1500 mA, min 20 mA charge current

□ Programmable pre-charge, fast charge,

and termination voltage

□ Dynamic power path balances

□ ±0.5 accurate termination voltage

■ ±5 charge current regulation

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