ROHM Semiconductor BD71815AGW Power Management IC
ROHM Semiconductor BD71815AGW Power Management IC (PMIC) is a single-chip power management solution ideal for battery-powered portable devices. The BD71815AGW combines 5 buck converters, 8 LDOs, a boost driver for LED, and a 500mA single-cell linear charger. The BD71815AGW PMIC also includes a real-time clock (RTC) and a 32kHz crystal oscillator. This PMIC also includes a Coulomb counter and a general-purpose output (GPO). The BD71815AGW PMIC buck converters supply power to the application processor. To maintain the highest efficiency over a wide range of current loads, PFM and PWM modes are supported by the converters. The BD71815AGW PMIC operates at a high switching frequency of 6MHz and incorporates Dynamic Voltage Scaling (DVS) for the processor core regulator.
ROHM Semiconductor BD71815AGW PMIC is optimized for use in applications based on the NXP Semiconductors i.MX 7Solo and i.MX 7Dual Applications Processors.
Features
- 5 Buck Converters
- 3x 1000mA
- 1x 800mA
- 1x 500mA buck converters
- 3x General-Purpose LDOs
- 2x 100mA LDOs
- 1x 50mA LDO
- LDO for DDR reference voltage, secure non-volatile storage, low-power state retention
- LDO for SD card with dedicated enable terminal and SD Card Interface with a dedicated terminal to dynamically change the output voltage
- White 25mA LED boost converter
- Single-cell linear LIB charger with 30V OVP
- 3.72V to 4.34V selectable charging voltage
- 100mA to 500mA programmable charge current
- Support for up to 2000mA charge current using external MOSFET
- DCIN over-voltage protection
- Battery over-voltage protection
- Battery supplement mode support
- Battery short circuit detection
- Voltage measurement for thermistor: vias voltage output for external thermistor
Videos
BD71815AGW Evaluation Board
ROHM Semiconductor BD71815AGW Evaluation Board demonstrates the functions of the BD71815AGW, a single-chip power management IC for battery-powered devices. The board includes a Coulomb counter, a real-time clock (RTC), a 32kHz crystal oscillator, and a general-purpose output (GPO). The BD71815AGW combines 5 buck converters, 8 LDOs, a boost driver for LED, and a 500mA single-cell linear charger. Operating at a high switching frequency of 6MHz, the BD71815AGW Evaluation Board offers the use of smaller and low-cost inductors and capacitors.
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