The new battery pack integrated with Type-C interface supports bidirectional high-power charging and discharging on a single TYPE-C interface. QC2.0/3.0 protocol is optional and the maximum input/output is 100 W (5 A E-Mark cable required). As a SoC controller chip, UM3506 is responsible for implementing board-level system policy/status control and indication for the main control of the mobile power supply. Combined with the bidirectional BUCK-BOOST power supply IC, the chip can access and control the external power supply IC via the standard I2C digital serial interface / PWM interface to enable charging-discharging / boost-buck / power system setting, etc. The solution can be easily integrated on the BMS board.

Block Diagram
Features & Benefits

PD/Type-C DRP bidirectional solution, one Type-C

Supporting 3–6 strings of battery

Type-C port output: 5/9/12/15 V @ 3 A, 20 V/5 A MAX (E-Mark 5 A cable required)

Type-C port input: arbitrary input, up to 20 V/5 A (customizable within 60–100 W as required)

USB A port power output optional

Hardware-level secondary protection available, BMS primary protection optional

UM3506 implements PD DRP protocol, power management, BMS, and communication with electric tools to ensure the safety of charging and discharging

Key product recommendation

Unicmicro (Guangzhou) Co., Ltd. focuses on the industries such as new energy, inverter motor control, low-power IoT and automobile electronics, providing customers with differentiated microcontroller chips, fast charging and digital power management chips, analog and RF front-end chips, as well as innovative solutions regarding low-power IoT, digital power and motor control.

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