H-bridge transformer creates isolated power supplies in smart grid metering applications
Maxim Integrated Products
MAX13256
Maxim Integrated Products has introduced the MAX13256, a H-bridge transformer driver that is designed to provide a simple way to create isolated power supplies in smart grid metering applications and industrial and medical equipment.
Shasta Thomas presents the MAX13256 H-bridge driver
Using this driver, engineers can quickly design an isolated DC-DC converter with an efficiency of up to 90 per cent, according to the company.
The MAX13256 drives a transformer’s primary coil with up to 300mA of current from an 8 to 36V DC supply that can deliver up to 10W of isolated power.
Key specifications
- Users can choose their own transformer winding ratio, which defines the output voltage
- Integrated protection features prevent system-level failures
- Drives the transformer that acts as the additional form of isolation from high-voltage mains
- Eliminates external voltage regulation
- Integrates protection features that prevent system-level failures
- Adjustable current limiting allows indirect limiting of secondary-side load currents
- An over-current limit is set by an external resistor over the 215 to 650mA range
- An active-low fault output asserts when the device detects an over-temperature or over-current condition
- Integrated thermal and short-circuit protection ensures safe operation and reduces cost and PCB space
- Helps reduce heat in applications where space is premium
- Features a low-power mode to reduce the overall supply current to 0.65mA when the driver is not in use
- -40 to 125°C automotive temperature range
Request more information
More stories
Analogue mux and switch ranges from Maxim suit connector-sharing applications weblink
Maxim Integrated Products is offering the MAX14778 analogue mux and MAX14759 analogue switches for application in POS connector sharing, industrial analogue inputs, handheld instrumentation, ATE and audio/data switching.
Maxim Integrated Products offers small synchronous DC/DC converters weblink
Maxim Integrated Products has launched a range of small, current-mode, synchronous DC/DC converters — including the MAX15058/MAX15108/MAX15112/MAX15118 — that can be used in applications where space is at a premium.
Maxim technical seminars demonstrate field-programmable gate array technology weblink
Maxim Integrated Products is to demonstrate its analogue and mixed-signal technology for field-programmable gate arrays (FPGA) with a series of free seminars during X-Fest 2012.
Maxim Integrated Products offers GNSS amplifier and receiver systems weblink
Maxim Integrated Products is offering the MAX2769B amplifier and MAX2670 receiver, which are designed for Global Navigation Satellite System (GNSS) applications — such as those within the automotive and industrial sectors — and can also operate over navigation standards including GPS, GLONASS, Galileo, and Compass.
Maxim introduces overvoltage protectors for applications such as tablets and smartphones weblink
Maxim Integrated Products has launched two advanced overvoltage protection systems designed to protect the internal components of portable electronic devices such as tablets, smartphones and portable media players.
