ROHM Semiconductor designs and manufactures semiconductors, integrated circuits, and other electronic components for the wireless, computer, automotive, and consumer electronics markets. ROHM Semiconductor's product portfolio ranges from audio/video ICs, wireless audio links, image sensors, noise protection discretes, memory products with double-cell technology, energy-efficient power management components, and LEDs.
Rohm's BU52xxx Hall Effect ICs are magnetic switches that can operate both S- and N-pole, upon which the output goes from Hi to Low. Features include omni-polar detection, micro power operation, ultra-compact and ultra-small package, and is available in 1.8V, 3.0V, 3.3V and 5.0V power supply voltages. Typical applications include mobile phones, notebook computers, digital video camera, and digital still camera.
Rohm's BH1730FVC Ambient Light Sensor is a digital 16-bit serial output type ambient light sensor IC for I2C bus interface. This device is the most suitable to obtain the ambient light data for adjusting LCD backlight power of a TV or mobile phone. It is possible to detect a very wide range light intensity (0.008 - 65535 lx ). Features include an I2C bus interface, illuminance to digital converter, a very wide range and high resolution, low current by power down function, and it has a small measurement variation (+/- 15%). Applications for this device include LCD TV, mobile phone, notebook, PC, portable game machine, digital camera, digital video camera, PDA, and LCD display.
ROHM Semiconductor Evaluation Boards for BD9673 and BD9876 were designed to aid designers in evaluating BD9673EFJ and/or BD9876EFJ. These evaluation boards accept a wide power supply of 7-42V, a step down output of 1.2V/1.8V/3.3V/5V or any other user defined voltage can be produced. The ICs feature an internal 200mohm Nch MOSFET (3.5A max) and a synchronization frequency range of 200 kHz to 500 kHz. A Soft Start circuit prevents in-rush current during startup along with UVLO (low voltage error prevention circuit) and TSD (thermal shutdown detection) protection circuits. An EN pin allows for simple ON/OFF control of the IC to reduce standby current consumption.
ROHM's BP5890 is an AC input non-isolated LED driver. BP5890 features
constant current output for driving 4-8 1W LEDs via 80-264VAC input.
Measuring 16.0x100.2x17.0mm, BP5890 offers a AC90 to 264V input voltage,
10 to 28.8V output voltage, 350mA output current, and does not require
an external circuit.
ROHM's BP5875 LED Driver is designed as a more compact version of the BP5872 . BP5875 retains the same key advantages of BP5872, including a thin form factor, dimming compatibility, harmonics standards compliance, universal input, and high efficiency operation, making it ideal for a variety of applications. BP5875's compact size of 65×130×19.2mm makes it compatible with a variety of applications including ceiling light specifications. Using this LED driver, designers can easily enable dimming over a wide range (10-100%) using analog input. The BP5875 also features an active filter method with built-in PFC circuit that increases the power factor to 0.99, enabling support for high frequencies as well as compliance with IEC61000-3-2. Additionally, this LED driver provides dimming over a wide range (10-100%) is easily enabled using analog input. ROHM's BP5875 LED Driver is well-suited for production lighting (i.e. spotlights, downlights), landscape lighting (i.e. slimlights), residential lighting, (e.g. LED ceililights, baselights, lamps), and signage.
Rohm Semiconductor's SMLP34 PICOLED™-RGB (red, green, blue) is the smallest 3-color type LED in the world. The SMLP34 LED from Rohm Semiconductor is a 4-pin type LED with a low height that helps improve the color mixture. It measures 1.0 x 1.0 mm and is available in case size 1010 (0404).
Rohm Semiconductor's R6000/R8000 series Power MOSFETs for switching power supplies offer low on-resistance and low input capacitance. Other features of R6000/R8000 power MOSFETs from Rohm Semiconductor include high ESD, fast switching speed, guaranteed gate-source voltage of ±30V, Pb-free lead plating, and RoHS compliance.
Rohm Semiconductor's Switching Regulators with Built-in Power MOSFET (BU9000XGWZ, BD9876EFJ, and BD9673EFJ series) offer several crucial features, including the following:
-BU9000XGWZ: High efficiency with ultra low current PFM mode. BU9000XGWZ regulators from Rohm Semiconductors provide up to 1.0A load current and input voltage range of 3.0V to 5.5V, optimized for battery powered portable applications. These regulators have a mode control pin that allows the user to select PWM (Pulse Width Modulation) or PFM (Pulse Frequency Modulation).
- BD9876EFJ: Below high efficiency rate step-down switching regulator power MOSFET mainly used as a secondary side power supply. Features include internal 200mΩ Nch MOSFET, 3.0A output current, 300kHz oscillation frequency, feedback voltage 1.0V ± 1.0%, and internal soft start function.
- BD9673EFJ: Below high efficiency rate step-down switching regulator power MOSFET used mainly as a secondary side power supply. Features include internal 200 mΩ Nch MOSFET, 1.5A output current, synchronization to external clock (200kHz-500kHz), feedback voltage of 1.0V ± 1.0%, and ON/OFF control through EN Pin (Standby Current 0 A typ.)
Rohm Semiconductor's PICOLED™ RGB-side series surface mount chip LED is a three-color (red, green, blue) surface mount LED with white
diffused epoxy that is used as a source of lighting for display units. The PICOLED™ from Rohm Semiconductor has a lens dimension of 3.0 x 1.3 (t=0.43) mm and operating temperature range of -30ºC to +85ºC.
ROHM Semiconductor BP527x Series DC/DC Converter Modules were developed utilizing an in-house high-frequency (1.5 MHz) switching regulator IC and synchronous rectification system for high efficiency operation (93% for 6 V→5 V conversion) resulting in smaller mounting area. The new high-heat-dissipation package enables direct heat dissipation from BP527x Series DC/DC Converter Modules to an aluminum heat sink. An external heat sink can be mounted, increasing output current capability to 800 mA. In addition, the 3-terminal, pin-compatible configuration enables major increases in power supply efficiency without requiring comprehensive modifications, reducing development time and costs. While providing high input voltage, ROHM Semiconductor BP527x Series DC/DC Converter Modules also facilitate high energy-savings. Besides a high efficiency conversation ratio of up to 93% (for 24V -> 15V), it achieves high output voltage accuracy of ±2%. The BP527x Series DC/DC Converter Modules include six different output voltage types (1.8V to 15V), making it possible to select the ideal solution based on individual specifications. A heat sink is mounted on the back of BP527x Series DC/DC Converter Modules and combined with a special structure that dissipates heat directly from the heating element, eliminating the need for thermal design. This enables a maximum output current of 500mA without requiring any external heat sink while mounting a heat sink permits a maximum output current of 800mA. The ROHM Semiconductor BP527x Series DC/DC Converter Modules family is perfect for use in a broad range of applications such as power conditioners, gaming devices, office equipment, measurement devices, industrial equipment, and major appliances, including gas water heaters, washing machines, refrigerators, and air conditioners.
ROHM Semiconductor BUXXTD3WG Series CMOS LDO Regulators integrate a 200mA output high performance FULL CMOS regulator into an ultra-compact, 2.9 × 2.8 × 1.15mm SSOP5 package. Additional features include low power consumption and superior noise and load response characteristics, making the ROHM Semiconductor BUXXTD3WG Series CMOS LDO Regulators ideal for use in power supplies for a wide variety of applications, including logic ICs, RF circuits, and camera modules. These LDO regulators also offer high-accuracy output voltage, high ripple rejection, and compatibility with small ceramic capacitors.
ROHM Semiconductor Compact High Accuracy Temperature Sensor ICs are thermostat output temperature sensor ICs with a built-in temperature detection element, constant current circuit, and a high-accuracy reference voltage source in one chip. Temperature detection can be realized at ±2.5ºC accuracy without complicated design. ROHM Semiconductor Compact High Accuracy Temperature Sensor ICs are exceptional temperature sensor ICs for portable equipment with micro and low current, a power down function, and the battery drive. Because they provide analog output in addition to thermostat power output, these temperature sensors are ideal for a wide range of applications, such as heat detection and temperature monitors. The sensors are available with detection temperatures of 55ºC, 60ºC, 65ºC, 70ºC, and 80ºC.
ROHM Semiconductor RSDxxxxxxTL 4V Drive N-ch MOSFETs are N-channel power MOSFETs featuring low ON-resistance, useful for wide range of applications. ROHM Semiconductor RSDxxxxxxTL 4V Drive N-ch MOSFETs are surface mountable and come in a CPT-3 package.
ROHM Semiconductor 2SxR5xxPT100 Power Transistors are NPN and PNP silicon epitaxial planar bipolar transistors. ROHM Semiconductor 2SxR5xxPT100 Power Transistors feature low saturation voltage and high speed switching, and are designed for driver applications.
ROHM Semiconductor offers a range of optical sensors and communication devices, from IR LEDs to phototransistors and photointerrupters. ROHM Semiconductor IR LEDs and transistor sensor products are offered in packages ranging from standard T1 and T1 1/4 packages to very small low profile (0.9mm) SMD top view and side view packages, all featuring ambient light resistance with wide or narrow viewing angles. These optical sensor devices are suitable for remote control transmitters, games, security, industrial applications and proximity detection. Integrated products such as ROHM's selection of photointerrupters are offered in a variety of package sizes and different gap and slit widths. High accuracy detection due to double molding technology makes them ideal for printer applications, including paper/door detection and motor rotation/position sensing.
ROHM Semiconductor SIM-030ST and SIM-040ST high-performance IR LEDs are ideally suited for proximity sensor applications. These ROHM surface-mount IR LEDs feature breakthrough IR wavelength technology providing peak output of 870 nm, compared to 950 nm for comparable devices. The 870 nm level is much closer to the peak wave sensitivity of phototransistors (sensors), thus achieving higher efficiency proximity sensing and energy savings of up to 66%. The small package footprint and low-profile further enhance their application in cell phones and other portable devices. The ROHM Semiconductor SIM-030ST, the smaller of the two IR LED devices, has a 2.3 mm x 1.95 mm footprint and a height of just 0.9 mm. With a forward current (IF) of 100 mA, the device delivers typical emission strength of 30 mW/sr (milliwatts per steradian). The slightly larger SIM-040ST (3.1 mm x 2.25 mm x 1.6 mm) provides 40 mW/sr, typical emission strength. These IR LEDs are the latest additions to ROHM's Optical Sensors Series of emitters, receivers, photointerrupters, tilt sensors, IrDA modules and remote control modules.
ROHM Semiconductor BD81xx white backlight LED drivers offer exceptional performance solutions for passenger compartment and forward illumination applications. ROHM Semiconductor BD81xx white backlight LED drivers provide designers with a variety of design options with integrated or externally switched outputs, parallel/series control, and extensive protection and fault detection functions in small surface mount packages. Each of these ROHM backlight LED drivers features a wide input voltage range and a compact size for small spaces.