Distribution Spotlight
Current Mode Switching Regulators Optimize Power Efficiency and Performance in Point-of-Load Applications
The BD91x series of step-down switching regulators combine ROHM's proprietary SLLM™ (Simple Light Load Mode) technology with current-mode PWM control to provide exceptional regulation and high efficiency during both low- and high-current load conditions.
|
Current Mode Step-Down Regulators More Info Single-chip Type with built-in FET Switching Regulator Series |
Temperature Sensor IC
ROHM offers a broad lineup of ultra-compact, low current consumption thermostat output temperature sensors optimized for temperature monitoring and overheating protection in compact devices of all types. The BDJxxxxHFV series integrates a temperature detection element, constant current circuit, and high precision reference power source in a single chip. Additional features include low current consumption (7.5µA – 50% less than conventional products), built-in power down function, high analog output temperature sensitivity, precision thermostat, detection temperature hysteresis, and precise analog output (±2.5°C). Multiple models are available in a range of detection temperatures, from 55°C to 90°C in 5°C intervals. The units are available in a compact HVSOF5 package – 70% smaller than conventional SSOP5 packages.
|
More Info Low Current Consumption Thermostat Output Temperature Sensor IC |
PWM Output H-Bridge Driver ICs for DC Brush Motors
ROHM H-bridge motor drivers (BD62xx series) are compatible with direct PWM drive and integrate a VREF-variable function for optimized duty control.
|
More Info |
Pyroelectric Infrared Motion Sensor Amp
The BD9251FV pyroelectric infrared sensor amp integrates a number of essential components into a single chip reducing mounting area, simplifying costs and facilitating design. Features include a regulator, high precision opamp and comparator – all in a compact SSOP-B14 package.
|
More Info |
Ambient Light Sensor ICs for LCD Display Backlighting
ROHM ambient light sensor (ALS) ICs (BH16xx analog/BH17xx digital) are designed to control the brightness of LED-backlit LCD displays based on ambient light for optimum visibility and energy efficiency. These compact ALS ICs are the ideal choice for LCD-equipped portable devices as well as LCD monitors and high-definition (HDTV) backlight control.
|
More Info Ambient Light Sensor IC Series
|
ECOMOS™ Series Handles Reduced Supply Voltages in Portable Devices
ROHM's ECOMOS™ series of P- and N-channel MOSFETs are designed to meet the lower gate drive voltages required of emerging portable electronic devices. Advanced proprietary processes reduce RDS(on) by up to 90% over comparable products at low 1.2V or 1.5V gate drive (VGS) operation. This improved performance combined with unique packaging design results in high efficiency and excellent power dissipation in a small footprint.
|
More Info Embedded Ideas - ECOMOS™ Series
|
USB Host Audio Decoders
ROHM’s BU9457KV and BU9458KV USB host audio decoder ICs are compatible with a variety of audio formats and integrate protection circuits designed to prevent malfunction due to noise from the effects of wiring and nearby devices. An improved communication error recovery circuit is also built into the USB interface block for high ESD resistance. Additional features include interface hardware such as USB/SD memory controllers, a D/A converter, sampling rate converter, compressed audio file decoder, file system, and system controller – all on a single chip - allowing simple control (e.g. play, stop, fast forward, rewind) without the need for a microcontroller and enabling configuration by simply adding the IC to existing systems.
|
More Info
|
High Power LED Driver for Illumination
The BP5845W isolated LED driver features constant current output (set via external resistors), an integrated transformer, and is capable of driving 6-9 1W LEDs from 100VAC input. In addition, flicker-free dimming (0-100%) is possible using PWM control.
|
More Info |
Ground Isolation Amp
ROHM’s BA3121F ground isolation amp is compatible with compact external capacitors and efficiently eliminates problems caused by wiring resistance along with noise generated by peripheral circuits. Additional features include low distortion and high common mode rejection.
Broadband Triple Circuit Video Switchers
The BA7657F and BH7659FS broadband video switchers were developed for input switching in high precision PC monitors and high definition TVs. 3 dual input broadband video switching circuits for RGB signal switching and 2-4 dual input switching circuits for sync and I2C BUS signals are integrated. The BA7657F features a built-in sync signal circuit while the BH7659FS is equipped with a power save function.
|
More Info Product Lineup |
Five-input Dual Circuit Video Switchers
The BA7626F/FS is a 5-input video signal switcher with a 6dB broadband amp developed for use in AV amp switching. Two recording/playback devices such as a DVD recorder and VCR, and three playback-only devices (i.e. DVD players and video game devices) can be connected making it easy to configure a high-performance, highly functional system.
|
More Info |
Triple Circuit Video Switchers
The BA7602F, BA7603F, BA7606F, BA7606FS, BA7607F, BA7609F and BA7627FV video signal switchers feature dual inputs with either 2 or 3 circuits. In addition to bias input and clamp input types, units integrating a pedestal clamp suitable for RGB signal switching are also available ensuring broad compatibility.
|
More Info |
DC/DC Converters | |
 | Optimized for multi-function, high performance battery-driven portable devices of all types, ROHM’s DC/DC converters and controllers (BD8301MUV/BD8303MUV) feature a wide input voltage range and automatic step-up/-down operation for reduced power consumption. High output efficiency is maintained across the entire input range. Only one coil is used and fewer parts are required than conventional Sepic systems contributing to smaller power supply configurations.
More Info High-efficiency Step-up/down
Switching Regulators with Built-in Power MOSFET (BD8301MUV) |
Video Switcher Series | |
 | Low Voltage Broadband Single Circuit Video Switchers ROHM’s lineup of 3 input/1 output (BH76332FVM/BH76333FVM) and 6 input/1 output (BH76362FV/BH76363FV) video switchers are available in either clamp or bias input. Operation is guaranteed between -40ºC and +85ºC, making them ideal for car entertainment and navigation systems.
More Info Product Lineup |
Thermostat Output Temperature Sensors
ROHM's output ICs with temperature switching function (BDExxx0G series) eliminate the need for the complicated circuitry required in conventional thermistor-type temperature detection circuits by integrating a high precision reference voltage source, comparator, constant current circuit, and temperature detection element in a single chip.
Additional features include adjustable detection temperature (3-stage: target, ±5°C), high detection accuracy (±4°C), low current consumption (16uA typ.), detection temperature hysteresis, and open drain/active low output. Fifteen models are offered in a wide range of temperatures (-20°C to +120°C, in 10°C increments) including SSOP5 package types.
Video Drivers with Built-in Low Voltage Single Circuit Video Switcher
ROHM’s lineup of 1 output/3 input (BH76330FVM/BH76331FVM) and 1 output/6 input (BH76360FV/BH76361FV) video switchers are available in either clamp or bias input. The wide operating temperature range (-40ºC to +85ºC) makes them ideal for applications requiring high reliability such as car AV and navigation systems.
|
More Info Product Lineup |
Ultra-compact PicoLED™-eco
ROHM has developed the PicoLED™-eco (SML-P11) series of ultra-compact LEDs. Patented technology results in twice the brightness as conventional products in the low current region of 1mA - all from one of the industry’s smallest, thinnest packages that are 53% and 74% smaller in area and volume, respectively, than the conventional 1608 (0603) size. Energy consumption is approximately 50% less at the same brightness, and the high reliability four-element structure (AlGaInP) prevents brightness degradation - even after long term, continuous use. These LEDs are available in red, orange, yellow, and green, and their low power consumption makes them ideal for compact portable, battery driven devices.
|
More Info |
Single Circuit Video Switchers
The BA7654F, BA7653AF/AFV, and BA7652AF video switchers integrate 2-3 inputs into a single circuit. Utilization of a high-performance feedback clamp circuit at the input terminal enables compatibility with 0.01µF ceramic capacitors for input coupling resulting in increased space savings. Features such as a high-speed switching function and a broad dynamic range ensures suitability with a wide range of applications.
4-way Tilt Sensor
ROHM offers the standard RPI-1031 optical sensor that detects movement in 90° intervals using an in-house infrared LED, 2 phototransistors and light blocking mechanism.
A novel architecture is utilized for silent operation eliminating the need for soundproofing while increasing design flexibility. In addition, optical sensors are not susceptible to vibration or magnetic fields as are mechanical and magnetic 4-way sensors respectively resulting in greater reliability.