PL94056   PL94056 High Efficiency, Synchronous bi-directional Buck-Boost
Charger with integrated fast charge protocols
1 Features
? Bi-directional buck-boost charging and discharging
with PD3.0, QC3.0, AFC, SCP, FCP, BC1.2
protocols integrated
? Support source role, sink role and DRP role for
PD3.0
? Charging management, including trickle charging, CC charging, CV charging and charging termination
functions
? Wide VBUS and VBAT voltage operation range up to
32V
? Integrated 10mR H-bridge MOSFET
? Support up A port and C port, plug-in and plug-out
detection
? Support over current, over voltage protection for
each port. ? 1 Cell to 6 Cells battery charge management ? Support both 4.2V and 3.5V battery charging
? Programmable switching frequency 150Khz and
300Khz
? Programmable VINREG voltage to prevent
overloading adaptor. ? 12-bit DAC converter to guarantee programmable current limit with10mA/step
? 12-bit DAC converter to guarantee programmable
output voltage with 5mV/step
? Programmable cable drop compensation
? Integrate N-Gate drivers for USB ports
? Battery voltage, BUS voltage and all ports voltage
sensing on VMON pin
? Battery current, BUS current and all ports current
sensing on VMON pin
? Comprehensive protection features in on-chip
buck-boost controller ? Supports pass-through operation when VBUS is
close to VBAT
? I2C interface is available to communicate with MCU
? On-chip LDO to provide power for MCU
? QFN6x6-42 package
2、Applications
? Power Bank
? Battery packs
? Li-ion Battery Charger ? Portable equipments
? General fast Charging
? Smart USB Sockets
3、Description
   PL94056 is a high efficiency, synchronous bi-directional buck-boost charger with integrated fast charge protocols. It
is a comprehensive and flexible buck-boost charger platform designed for most of fast charging applications
with type-C port and PD protocol. It can be programmed to buck charging, boost charging or buck-boost charging. PL94056 provides I2C interface to communicate with MCU, provides high voltage sensing for battery and BUS
terminals, accurate rail-rail current sensing for battery current, BUS current and USB ports currents. It also
provides high voltage blocking for CC1, CC2, DP, DM communication signals for all of the USB ports. PL94056
can work with a general MCU to provide a complete, powerful and flexible buck-boost charging system for all
kinds of fast charge application such as power bank, battery packs, or portable energy cubic etc. In charging mode, it steps up or down the input voltage to effectively charge the batteries. PL94056 supports trickle charging, constant current (CC) charging and constant voltage (CV) charging management. The charging current and charging voltage can be programmed by two 12-bit DAC converters. The PL94056 features I2C interface, so the user can easily
control the charging/discharging mode, and program charging current, charging voltage, output voltage, and
output current limits through I2C. It also monitors the status of USB ports and provides two NMOS gate drivers to
control the power path independently. User can also use I2C to monitor the status of DC-DC, even the whole
system. PL94056 also provides VMON pin, through which the MCU can monitor VBUS, VBAT voltage, IBUS, IBAT current and the current of each port in real time. All these features simplify the system design and reduce BOM cost for any charging system. The PL94056 supports under voltage protection, over voltage protection, over current protection, short circuit protection and over temperature protections to ensure system safety under different abnormal conditions.
4、Website：www.baitaishengshi.com
5、Typical Application Schematic