Rohm Semiconductor

BD71815AGW is a single-chip power management IC for battery-powered portable devices. The IC integrates 5 buck converters, 8 LDOs, a boost driver for LED, and a 500mA single-cell linear charger. Also included is a Coulomb counter, a real-time clock (RTC), a 32 kHz crystal oscillator and a general-purpose output (GPO).The IC’s buck converters supply power to the application processor as well as system peripherals such as DDR memory, wireless modules, and touch controllers. These regulators maintain high efficiency over a wide range of current loads by supporting both PFM and PWM modes. They also operate at a high switching frequency of 6MHz, which allows the use of smaller and cheaper inductors and capacitors. The regulator supplying the processor core also supports Dynamic Voltage Scaling (DVS).

BD71847AMWV integrates all power rails required by i.MX 8M Mini processors and system peripherals. In addition to integrate a sequencer compatible with power modes supported by i.MX 8M Mini processors, making it possible to significantly reduce the development time, decrease size, and simplify application design.The power supply circuit of the BD71847AMWV, designed specifically for the power supply system of the i.MX 8M Mini processor family, integrates an 6 buck converters, 6 LDOs, and control logic that allows it to supply power not only to the processor, but the required DDR memory as well – all from a single chip. A 1.8V/3.3V power switch for SDXC cards is also built in, along with a 32.768kHz crystal oscillator driver and multiple protection circuits such as output short-circuit, output over-voltage/current, and thermal shutdown.Buck conversion efficiency from 83 to 95% is achieved for 0.7V to 3.3V output, and the wide input voltage range from 2.7V to 5.5V supports a variety of power sources, from batteries to USB, making them ideal for i.MX 8M Mini applications.Furthermore, when single-sided mounting and Type-3 PCB is assumed, 42 fewer parts are needed compared with discrete solutions, reducing PCB area by up to 42%.

ROHM's BD71G4LG-1 is highly accurate and low current Over Voltage Detector IC. It is an N-Channel Open-Drain output type with detection voltage of 4.05V and hysteresis voltage of 30mV. It is most suitable for monitoring the charge of a lithium-ion battery.

BD7220FV-C is a coulomb counter IC for high-current applications. The product integrates a high-accuracy operational amp, a current accumulation logic circuit and a 16-bit ΔΣADC to perform current accumulation with high precision. The current sense input supports shunt resistors and output current sensors, and uses the SPI communication interface. BD7220FV-C only requires SPI commands to carry out the calibration necessary for high-precision measurement, so it can also get current accumulation information for battery state-of-charge estimation.

This is the product guarantees long time support in Industrial market. This product are Rail-to-Rail Input/Output monolithic ICs integrated dual or quad independent CMOS Op-Amps on a single chip. These features high slew rate, low noise and low input bias current. It is suitable for equipment operating from battery power and using sensors that an amplifier.Furthermore, this circuit type does not oscillate even with a capacitance of 1 nF. Set design is possible without worrying about oscillation due to output capacitance.What is Nano Cap™?Nano Cap™ is a combination of technologies which allow stable operation even if output capacitance is connected with the range of nF unit.

This is the product guarantees long time support in Industrial market. This product are Rail-to-Rail Input/Output monolithic ICs integrated dual or quad independent CMOS Op-Amps on a single chip. These features high slew rate, low noise and low input bias current. It is suitable for equipment operating from battery power and using sensors that an amplifier.Furthermore, this circuit type does not oscillate even with a capacitance of 1 nF. Set design is possible without worrying about oscillation due to output capacitance.What is Nano Cap™?Nano Cap™ is a combination of technologies which allow stable operation even if output capacitance is connected with the range of nF unit.

The BD733U2EFJ-C is low quiescent regulators featuring 50V absolute maximum voltage, and output voltage accuracy of ±2%, 200mA output current and 6μA (Typ) current consumption. These regulators are therefore ideal for applications requiring a direct connection to the battery and a low current consumption. Ceramic capacitors can be used for compensation of the output capacitor phase.This IC uses different production line against series model BD733L2EFJ-C for the purpose of improving production efficiency. We recommend using this IC for your new development. Electric characteristics noted in Datasheet does not differ between Production Line. In addition, the data of BD733L2EFJ-C is disclosed for documents and design models unless otherwise specified.

Omnipolar detection Hall ICs can detect both S-and N-pole magnetic fields, simplifying magnet management.