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.
Smallest automotive maXTouch controllers 29 July 2020, Altron Arrow, Avnet South Africa
, DSP, Micros & Memory
To help enhance and ease today’s driving experience, automotive manufacturers are implementing additional touch displays beyond the centre infotainment display (CID). Supporting the application of these ...
Read more...MOSFET half-bridge power stage 30 June 2020, Altron Arrow
, Power Electronics / Power Management
Vishay Intertechnology introduced a new 30 V n-channel MOSFET half-bridge power stage that combines a high-side TrenchFET MOSFET and low-side SkyFET MOSFET with integrated Schottky diode in one compact ...
Read more...Programmable electronic DC loads with energy recovery 30 June 2020, Vepac Electronics
, Power Electronics / Power Management
Elektro-Automatik’s new series of electronic DC loads with energy recovery to mains, called EA-ELR 9000 HP, is an advancement of the series EA-ELR 9000. It offers a wider AC input range for operation ...
Read more...Cypress ships one billionth USB-C device 30 June 2020, Altron Arrow
, News
Cypress, an Infineon Technologies company, announced that in less than five years, the company has achieved a landmark milestone by shipping its one billionth USB-C device. As the leading provider of ...
Read more...18 V synchronous buck converters 30 June 2020, Altron Arrow
, Power Electronics / Power Management
Suitable for consumer and industrial applications, Diodes Incorporated announced the AP62xxx family of high-efficiency synchronous step-down DC-DC converters including the AP62250 (2,5 A), AP62300 (3 A), ...
Read more...MOSFET half-bridge power stage 30 June 2020, Altron Arrow
, Power Electronics / Power Management
Vishay Intertechnology introduced a new 30 V n-channel MOSFET half-bridge power stage that combines a high-side TrenchFET MOSFET and low-side SkyFET MOSFET with integrated Schottky diode in one compact ...
Read more...Laser diode driver power supplies 30 June 2020, Vepac Electronics
, Power Electronics / Power Management
DEI offers a variety of laser diode driver instruments designed with the laser researcher, system designer and scientist in mind. In both bench-top and rack-mount configurations, as well as a variety ...
Read more...Video Reel: Microchip’s SAM L11 30 June 2020, Altron Arrow
, Multimedia, Videos
This video (www.dataweek.co.za/*jun20-sam) provides a brief overview of Microchip Technology’s SAM L11 comprehensive security solution framework and demos to make implementation of security simple. Microchip’s ...
Read more...Dual-core wireless MCU 30 June 2020, Altron Arrow
, Telecoms, Datacoms, Wireless, IoT
The STM32WBx0 is a dual-core wireless MCU based on an Arm Cortex-M4 core running at 64 MHz (application processor) and an Arm Cortex-M0+ core at 32 MHz (network processor).
The STM32WBx0 Value Line ...
Read more...USB Type-C power delivery controller 30 June 2020, CST Electronics
, Power Electronics / Power Management
The MAX77958 from Maxim Integrated is a robust solution for USB Type-C CC detection and power delivery (PD) protocol implementation. It detects connected accessories or devices by using Type-C CC detection ...
printer friendly version