ROHMís 40V Window-Type Voltage Detector: Providing High Accuracy and Ultra-Low Consumption
Highly reliable, energy-saving voltage monitoring for automotive and industrial equipment requiring functional safety
Willich-Münchheide, Germany, August 30, 2022 Ė ROHM developed the high accuracy, ultra-low current consumption voltage detector (reset IC) BD48HW0G-C. It is optimized for a wide range of automotive and industrial applications requiring voltage monitoring of electronic circuits for increased safety Ė including automotive electronic control units and factory automation equipment.
(Fig. 1)

In recent years, continuing technological innovation in the automotive and industrial equipment sectors towards automation has spurred demand for greater safety. Along with this, to build safer systems, product development that takes into account safety guarantees (fail-safe and functional safety) in the event of an incident is required.

To date, ROHM has developed more than 1,000 voltage detectors which play an important role in ensuring the safety of equipment. With a comprehensive product lineup, ROHM ships over 250 million pieces annually (in FY2021) for a wide range of low voltage applications worldwide.

The new BD48HW0G-C window-type voltage detector utilizes high-voltage BiCDMOS processes along with ROHMís proprietary analog design technology. The aim: enabling operating voltages up to 40V and an industry-leading detection voltage accuracy of ±0.75%. At the same time, the detection voltage can be freely set, enabling high accuracy monitoring of abnormal voltages in a wide range of applications, from low voltage to high voltage, contributing to highly reliable systems with minimal incorrect fault events.

In addition, the BD48HW0G-C is leveraging ROHMís proprietary ultra-low current consumption technology Nano Energy™. It reduces current consumption to just 500nA (0.5µA, only 6% of standard products with equivalent functionality and accuracy). It enables the carefree application for an increased power consumption in automotive systems powered by battery when the engine is stopped. This also makes it suitable for voltage monitoring in various power supply circuits in automotive and industrial applications requiring functional safety.

Going forward, ROHM plans to expand its lineup of high voltage single-type voltage detectors with fixed detection voltage equipped with Nano Energy™ technology to provide greater safety in automotive and industrial environments.
(Fig. 2 + 3)

New Product Summary
The BD48HW0G-C window-type voltage detector features a wide operating voltage range from 1.8V to 40V and an industry-leading detection voltage accuracy of ±0.75% (over the entire temperature range). In addition to a maximum operating voltage of 40V, the detection voltage can be freely set, enabling high accuracy monitoring of abnormal voltages in a variety of applications, at both low and high voltages, contributing to high reliability systems that maximize efficiency in automotive and industrial power supplies.

The BD48HW0G-C achieves an ultra-low current consumption of 500nA by ROHMís ultra-low current consumption technology Nano Energyô. This is only 6% of standard products with equivalent functions and accuracy, making it suitable for applications where increased power consumption is a concern.
(Fig. 4)

*ROHM has a lineup of over 1,000 voltage detectors. Click on the URL below for more information.
https://www.rohm.com/products/power-management/voltage-detectors

Application Examples
  • Automotive systems: Inverters in EVs/HEVs, electronic control units, ADAS, In-Vehicle Infotainment
  • Industrial equipment: factory automation equipment, measurement instruments, sensor systems
and further automotive and industrial applications requiring voltage monitoring.

Availability: Now (samples), October 2022 (in mass production)

Online Sales Information
Sales Launch Date: July 2022
Online Distributors: Digi-Key, Mouser, and Farnell

What is Nano Energyô Technology?
Nano Energy™ refers to proprietary ultra-low current consumption technology that achieves a quiescent current (no-load current consumption) on the order of nA by combining advanced analog technologies covering circuit design, layout, and processes utilizing ROHMís vertically integrated production system.
This contributes to not only extending the operating time of battery operated IoT and mobile devices, but also improved efficiency in automotive and industrial devices where increased power consumption is problematic. https://www.rohm.com/support/nano
(Fig. 5)

*Nano Energy™ is a trademark or registered trademark of ROHM Co., Ltd.
*Window-Type Voltage Detector: A voltage detector capable of detecting both over- and under-voltage

About ROHM Semiconductor
ROHM Semiconductor is a global company of 452.1 billion Yen (3.3 billion Euros) per March 31st, 2022, with over 23,000 employees. The company develops and manufactures a very large product range from SiC Diodes and MOSFETs, Analog ICs such as Gate Drivers and Power Management ICs to Power Transistors and Diodes to Passive Components. The production of our high performing products is taking place in state-of-the-art manufacturing plants in Japan, Germany, Korea, Malaysia, Thailand, the Philippines, and China. ROHM Semiconductor Europe has its Head Office near Dusseldorf serving the EMEA region (Europe, Middle East and Africa). For further information, please contact www.rohm.com
 
 
 
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» Press Release
Date: 30.08.2022 14:00
Number: PR17/22EN
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ROHMís 40V Window-Type Voltage Detector: Providing High Accuracy and Ultra-Low Consumption

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ROHM Semiconductor GmbH
Public Relations
Katrin Haasis-Schmidt  
Karl-Arnold-Str. 15
D-47877 Willich-Münchheide
Germany
Phone: +49 2154 921 0
katrin.haasis-schmidt@de.rohmeurope.com
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