Automotive buck converters

16 July 2014 Power Electronics / Power Management

The MAX20002 and MAX20003 are small, synchronous buck converters with integrated high-side and low-side MOSFETs.

Each device is designed to deliver up to 2 A/3 A with input voltages from 3,5 V to 36 V, while using only 15 μA quiescent current at no load. Voltage quality can be monitored by observing the PGOOD signal and operation is possible in dropout by running at 98% duty cycle, making them ideal for automotive applications.

Made by Maxim Integrated, the devices offer fixed output voltages of 5 V/3,3 V, along with the ability to program the output voltage between 1 V and 10 V. Frequency can be programmed using a resistor from 220 kHz to 2,2 MHz. The chips offer a forced fixed-­frequency mode and skip mode, and include a pin that can be programmed to turn on/off the spread spectrum to aid EMC management.

Targeted at use in distributed DC power systems, navigation and radio head units, and point-of-load automotive applications in, the MAX20002/3 are available in a 5 x 5 mm, 20-pin TQFN package with exposed pad and require very few external components.

For more information contact Arnold Perumal, Avnet Kopp, +27 (0)11 319 8600, [email protected], www.avnet.co.za

Further reading:

Quality batteries are critical for IIoT
Uniross Batteries Power Electronics / Power Management
Batteries intended for use in industrial operations must indeed offer complete reliability under extreme environmental conditions, resistance to vibration and harsh environments.

Read more...

---

12 kW hybrid inverter
Power Electronics / Power Management
Sungrow recently unveiled its next-generation residential energy storage solution, expanding its power range from 5 kW to 12 kW with the introduction of the new MG12RL hybrid inverter.

Read more...

---

40 W and 75 W railway DC/DC converter
Brabek Power Electronics / Power Management
RECOM has announced two new cost-efficient DC/DC converters for the rail market with an ultra-wide 11:1 input range to cover all nominal input voltages from 24 to 110 V DC.

Read more...

---

Power modules for solid-state transformers
RS South Africa Power Electronics / Power Management
Microchip’s new 3,3 kV silicon carbide modules deliver the required thermal performance and efficiency for SSTs to increase power available for token generation.

Read more...

---

Solving South African power problems with locally built intelligence
Editor's Choice Power Electronics / Power Management
Smart metering infrastructure in South Africa remains patchy. The rollout has been slow, coverage is inconsistent, and for the most part, granular per-unit measurement simply does not exist.

Read more...

---

Wide range power module
Power Electronics / Power Management
The latest DC-DC modules from Würth Elektronik are characterised by high resilience to voltage transients on the 24 V bus and an extremely wide input-voltage range from 3,5 V to 38 V.

Read more...

---

Selecting primary batteries for maximum service life
Uniross Batteries Power Electronics / Power Management
Primary batteries play an important role in IoT applications. Designed for longevity, they have a high-energy capacity and are often used in standalone applications where charging is impractical or impossible.

Read more...

---

4 kW e-mobility DC-DC converter
Brabek Power Electronics / Power Management
The RECOM RMOD4000 series of compact, plug-and-play DC-DC converters is a cost-effective solution to provide isolated 14 V, 28 V, or 56 V DC network rails from a high input voltage between 180 and 950 V DC.

Read more...

---

Aluminium case upgrade boosts performance
Vepac Electronics Power Electronics / Power Management
The SQBF Quarter Brick 300 W DC to DC Converter is now available in a newly upgraded metal case designed to deliver improved durability and superior electrical performance across demanding applications.

Read more...

---

Extending the range of power converters
RS South Africa Power Electronics / Power Management
Power Integrations recently announced a breakthrough in flyback topology extending the power range of flyback converters to 440 W - well beyond the limits that traditionally required more complex resonant and LLC topologies.

Read more...

---