Application Report Vol.084: System Reset IC with Built-in Watchdog Timer and Power Voltage Monitoring. New Japan Radio "NJM2102"

Replace with silicone! Maintains high-speed switching even at high temperatures, reducing power loss!

The "SiC-SBD series" is a Schottky barrier diode made from SiC (silicon carbide) material. It supports low resistance and high-speed switching, which can reduce switching losses. Additionally, it can operate stably at high temperatures, enabling the miniaturization of power devices. It is effective in high-speed switching applications such as PFC circuits, motor drive circuits, and inverter circuits. 【Features】 ■ Reduction of switching losses due to high-speed switching characteristics ■ Improvement of power conversion efficiency and capability for high frequency ■ Reduction of leakage current at high temperatures ■ Prevention of thermal runaway due to increased current *For more details, please refer to the catalog. Feel free to contact us with any inquiries.

• Other semiconductors
• Weight related measuring instruments
• Analytical Equipment and Devices

We can provide a wide range of proposals tailored to your needs.

【Product Lineup】 Operational Amplifiers Video Amplifiers Audio Amplifiers Comparators A/D Converters D/A Converters Analog Switches Digital Potentiometers Linear Regulators Switching Regulators DC/DC Converters Reset ICs Battery Chargers References ICs for Crystal Oscillators Silicon Oscillators RS232, RS485, RS422 Interfaces LED Drivers LCD Drivers Motor Drivers Wireless Modules (Bluetooth, Wireless LAN, GPS)

• Other semiconductors
• Weight related measuring instruments
• Analytical Equipment and Devices

Analog input filterless monaural 1.5W output Class D power amplifier

Low voltage operation, filterless output, and 1.5W output make it ideal for battery-powered device speaker amplifiers. 【Overview】 The NJU8758 is a filterless Class D power amplifier that operates over a wide range from 1.8V to 5.5V. The output is in a BTL configuration, eliminating the need for coupling capacitors and providing an output of 1.5W. Additionally, since an output LC filter is not required, the number of external components can be reduced. The output terminals are equipped with a built-in short-circuit protection circuit that protects the IC during short circuits between the output terminals and between the output terminals and ground. With its Class D operation, it offers high power efficiency, making it ideal for small consumer devices such as security equipment, portable devices, portable audio equipment, and laptops.

• Other semiconductors

Low voltage operation video amplifier with built-in LPF.

Overview: The NJM2561A is a low-voltage video amplifier with a built-in low-pass filter (LPF). It operates at a supply voltage of 2.6 to 5.5V, allowing for low-voltage operation, and features a built-in 75Ω driver circuit, enabling direct connection to video equipment such as TV monitors. The input supports composite video signals and includes a mute circuit that also serves power-saving functions, making it suitable for low power consumption designs. Additionally, its compact package (ESON6) makes it ideal for portable devices such as DSCs, DVCs, and surveillance cameras.

• Other semiconductors

Audio stereo A/D converter supports a sampling frequency of fs=8kHz to 192kHz while achieving low power consumption.

**Overview** The NJU3610 is a stereo A/D converter that supports sampling frequencies from 8 to 192 kHz, utilizing 1-bit ΔΣ technology to achieve high precision and low power consumption. The input circuit features fully differential inputs and is equipped with a stereo 4-to-1 selector. It can operate with dual power supplies of 1.8V/3.3V or a single power supply of 3.3V. The NJU3610 is ideal for various consumer audio devices such as digital TVs, soundbars, and speaker systems.

• Other semiconductors

Contributed to reducing the development costs of cradle speakers and improving stereo sound quality.

eala Stereo Expander with Push Button Interface Electronic Volume 【Overview】 The NJU7392 is an electronic volume with a built-in push button interface and eala Stereo Expander. This product features a dual-input selector, sound field adjustment function compatible with closely spaced speakers (eala Stereo Expander), push button electronic volume, and a bass boost function with a limiter. Additionally, the standby function allows for reduced power consumption of the set. Various modes can be controlled via push buttons or switches, eliminating the need for a microcontroller. It is ideal for applications such as cradle speakers for portable audio players and handheld gaming devices where speaker spacing is narrow.

• Other semiconductors

A low saturation type regulator with a minimum output voltage of 0.8V, enhanced analog characteristics such as output voltage accuracy and load stability.

Io=500mA Low Output Voltage Low Saturation Regulator Despite a minimum output voltage of 0.8V, this low saturation regulator enhances analog characteristics such as output voltage accuracy and load stability. 【Overview】 The NJM2841 is a low saturation regulator that supports low output voltages down to 0.8V. Utilizing a bipolar process, it achieves low noise and high ripple rejection, while supplying a separate power source (VBIAS) for the control circuit, ensuring good load stability and transient response even during low input-output voltage operation. This makes it ideal for core voltage supply applications in digital devices such as CPUs, DSPs, and ASICs. It is housed in a compact SOT-23-5 package with an output current of 500mA, and is compatible with small 4.7μF ceramic capacitors, allowing for a reduction in mounting area.

• Other semiconductors

Empowered by SPACECOOL, the "SPACECOOL Roof Shade" has been adopted at the governor station, a gas supply facility of Hokkaido Gas Co., Ltd., to ensure the stable operation of gas pipes within the building. This initiative aims to improve the preservation environment of equipment, including gas pipes, by suppressing temperature rises during the summer. Notably, this is the first adoption of the SPACECOOL Roof Shade in Hokkaido. In 2024, Hokkaido Gas will introduce the new material "SPACECOOL," developed and sold by our company, for approximately 350 outdoor remote monitoring control panels installed at the governor station. This aims to prevent thermal issues with precision equipment and avoid high-temperature alerts through zero-energy cooling. As a result, the objectives were achieved under high-temperature conditions in summer, maintaining stable operations. Based on these results, discussions are underway for the adoption of SPACECOOL in other facilities of Hokkaido Gas. Consequently, to reduce the risk of deterioration of equipment such as gas pipes through overall heat shielding of the building, the "SPACECOOL Roof Shade," which can be installed on a standing seam metal roof, has been adopted to suppress temperature rises within the building.

The pinhole inspection for packaging engineering is fully automated, eliminating packaging defects based on certain quality standards. The judgment results and operational status can be managed via a monitor screen. - Quantitative management of quality standards for the pinhole inspection process - Ensuring the quality of the product's shelf life - Establishing evaluation criteria for the manufacturing process, achieving quantitative quality assurance - Slim and space-saving design that can be connected to existing production lines - Quick changeover for product variety switching can be handled in a short time by exchanging chambers - Fully domestically produced, allowing for rapid maintenance and troubleshooting - Example target works: pillow packaging, packaged rice (packaged cooked rice), etc. *Please consult us regarding the use of this product for pharmaceuticals.

We would like to express our sincere gratitude for your continued support. We regret to inform you that we will be closed for the Golden Week holiday during the following period. ■ Golden Week Holiday Period ■ From April 29, 2026 (Wednesday) to May 10, 2026 (Sunday) For details such as shipping schedules, please check our company website via the link below. Please note that we will resume normal operations from May 11. Inquiries during the holiday period will also be addressed after May 11. We apologize for any inconvenience this may cause and appreciate your understanding. Earth Power Co., Ltd.

We received many requests for assembly and wiping in a clean environment, so we introduced a clean booth. We can accommodate anything of a certain size within it. If you have any inquiries about what we can or cannot do, please feel free to contact us.

Thank you very much for your continued support. We sincerely apologize for the inconvenience, but we will be closed for the Golden Week holiday during the following period: May 2, 2026 (Saturday) to May 6, 2026 (Wednesday) We appreciate your understanding and apologize for any inconvenience this may cause.