Power Electronics / Power Management


12-channel power supply sequencer

28 April 2010 Power Electronics / Power Management

Texas Instruments recently introduced a 12-channel sequencer and system health manager with fan control and multiphase PWM clock generator.

The UCD90124 integrates system power management and system thermal management into one device, which reduces board space and eases design, while providing highly intelligent system health monitoring. The chip features power supply margining and comprehensive non-volatile error logging, allowing customers to diagnose power supply failures in their systems.

The UCD90124 can sequence and monitor up to 12 power supplies while simultaneously margining up to 10 rails, as well as monitor and control up to four fans. It has a built-in temperature control algorithm that automatically adjusts fan speed based on five configurable temperature zones. Alternatively, designers can use their own temperature control algorithm running on an external host and communicate desired fan speed via I²C commands.

An auto-calibrate function automatically determines the turn on, turn off and maximum duty cycle for the fan, which allows the designer to think in terms of operating speed and also accounts for environmental variables in fan speed. The UCD90124 can generate up to eight clocks with configurable frequencies from 15,259 kHz to 125 MHz and phase shift from 0 to 360°, easing synchronisation of switch-mode power supplies.

TI’s easy-to-use Fusion Digital Power Designer Graphical User Interface (GUI) allows the designer to configure the UCD90124 via a PMBus/I²C interface. The free, downloadable tool simplifies the development process and speeds time-to-market by allowing the designer to configure all device parameters in minutes.



Credit(s)



Share this article:
Share via emailShare via LinkedInPrint this page

Further reading:

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 ...

Read more...