The Maxim MAX6819/MAX6820 power-supply sequencers are designed for dual-voltage processors and multivoltage systems. These devices monitor a primary supply voltage to enable or disable an external N-channel MOSFET switch for the secondary supply voltage. The devices help control supply voltage sequencing for systems components when a system's turn on/off characteristics cannot be guaranteed such as from a system bus or silver box supply.
When the primary supply is below a user-adjustable voltage threshold, the N-channel MOSFET switch is off, keeping the secondary supply away from the system component. When the primary supply exceeds the voltage threshold, the internal charge pump turns on after a sequence delay of 200 ms and drives the external N-channel MOSFET. The charge pump allows the N-channel MOSFET to be fully enhanced to reduce on-resistance losses.
The MAX6819 features a logic-driven enable input to enable and disable the MOSFET. The MAX6820 provides for the sequence delay to be externally adjusted with a capacitor. For multi-voltage systems, these devices can be daisy-chained together to sequence more than two supplies within a system.
The devices operate from -40 to +125°C and are available in a 6-pin SOT23 package.
Ultra-low-power wireless module Altron Arrow
Telecoms, Datacoms, Wireless, IoT
The STM32WBA5MMG from STMicroelectronics is an ultra-low-power, small form factor, certified 2,4 GHz wireless module that supports Bluetooth LE, Zigbee 3.0, OpenThread, and IEEE 802.15.4 proprietary protocols.
Read more...Powering Innovation eBook: Changing what’s possible
Power Electronics / Power Management
This exclusive read, entitled ‘Changing what’s Possible,’ delves into how power dense Vicor modules enable many world-changing innovations across various sectors.
Read more...16-channel multicell battery monitor Altron Arrow
Power Electronics / Power Management
The ADBMS6830B is a multicell battery stack monitor that measures up to 16 series-connected battery cells with a lifetime total measurement error of less than 2 mV.
Read more...Reliable redundancy with the Mibbo M3DN Series Conical Technologies
Power Electronics / Power Management
Designed for use with two parallel-connected power supplies, the M3DN Series allows for true redundancy, making it ideal for mission-critical applications.
Read more...Automotive power-over-coax inductor RS South Africa
Power Electronics / Power Management
TDK has launched the ADL8030VA, a high-performance inductor designed specifically for power-over-coaxial applications.
Read more...Rugged PSU for challenging conditions Conical Technologies
Power Electronics / Power Management
Built for rugged reliability, the Mibbo MFC Series delivers stable, efficient power in environments where moisture, dust, and temperature extremes are everyday challenges.
Read more...Enhance SiC device efficiency using merged-pin Schottky diodes NuVision Electronics
Editor's Choice Power Electronics / Power Management
Silicon carbide (SiC) has advantages over silicon (Si) that make it particularly suitable for Schottky diodes in applications such as fast battery chargers, photovoltaic (PV) battery converters, and traction inverters.
Read more...15 W power module with wide input range Brabek
Power Electronics / Power Management
RECOM’s miniature power modules provide 15 W output and operate over a wide input range of 18-264 V AC or 18-375 V DC.
Read more...Industrial-grade DIN rail PSU Conical Technologies
Power Electronics / Power Management
The Mibbo MTR960W is a reliable and cost-effective PSU option that delivers a solid 960 W of output power at 24?or 48 V DC.
Read more...Energy harvesting and Matter for smarter homes RF Design
Power Electronics / Power Management
Qorvo’s collaboration with e-peas on the Matter Enabled Light Switch marks another significant step in advancing Matter adoption across the IoT industry.
While every effort has been made to ensure the accuracy of the information contained herein, the publisher and its agents cannot be held responsible for any errors contained, or any loss incurred as a result. Articles published do not necessarily reflect the views of the publishers. The editor reserves the right to alter or cut copy. Articles submitted are deemed to have been cleared for publication. Advertisements and company contact details are published as provided by the advertiser. Technews Publishing (Pty) Ltd cannot be held responsible for the accuracy or veracity of supplied material.
printer friendly version