Advanced Analogic Technologies has introduced the AAT4702, a highly integrated load switch that consumes just 15 μA quiescent current.
Packaged in a compact 8-pin, 2 x 2 mm FTDFN package, the device is a current-limited P-channel MOSFET power switch with an integrated LDO regulator that offers a variety of protection features including auto-restart, reverse current blocking and a fault flag.
The AAT4702’s load switch current limit is set at 150 mA by default, but it is programmable up to 1 A via an external resistor. To further protect system loads or peripheral circuits from over-current conditions, the new load switch adds an auto-restart function that wakes up and re-enables the device every 40 ms to check for the continued existence of an over-current condition. If the over-current condition remains, the device stays in shutdown mode with both the load switch and LDO regulator output pulled low to ground. This allows the device to automatically resume operation once the over-current condition ends, eliminating the risk of damage.
An integrated FAULT flag feature that indicates an over-current or over-temperature condition is also available, adding a 5 ms blanking time to prevent reports of false events. The AAT4702 also adds reverse current blocking to protect the load switch from reverse current potentials when the device is shut down. The integrated load switch/LDO operates from inputs ranging from 2,4 V to 5,5 V. The LDO integrated into the IC delivers a regulated 1,8 V supply voltage with ±2% accuracy at load levels up to 100 mA. It may be powered either directly from an input source supply or via the load switch output. Shutdown current is less than 1 μA.
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...Sensor signal conditioning IC 30 June 2020, Hi-Q Electronics
, Analogue, Mixed Signal, LSI
New from Renesas Electronics is the ZSSC3240 sensor signal conditioner (SSC) – the newest member of its leading-edge SSC portfolio. The ZSSC3240 delivers high accuracy, sensitivity and flexibility for ...
Read more...Lead-acid batteries: quality versus cost 30 June 2020, Forbatt SA
, Power Electronics / Power Management
While many battery technologies have come to the forefront, lead-acid has remained the most well-known and cost-effective chemistry. Gel and AGM technologies have revolutionised this technology even further. ...
Read more...Fanless 600 W power supplies 30 June 2020, Vepac Electronics
, Power Electronics / Power Management
XP Power has released a new series of convection cooled, 600 W AC-DC power supplies. The ultra-compact power supplies deliver full load power under a wide range of conditions without additional cooling. ...
Read more...IGBT for 1500 V PV string inverters 30 June 2020, Altron Arrow
, Power Electronics / Power Management
The solar power market is undergoing a trend towards 1500 V solutions, which allow for more series connections, less cable, fewer generator connection boxes and fewer inverters.
The new EasyPACK 3B ...
Read more...DIN-rail mounting DC-DC converters 30 June 2020, Avnet South Africa
, Power Electronics / Power Management
Shortly after unveiling the brand-new DIN-rail mounting DC-DC converter family, the DDR-15/30/60/120/240 series, Mean Well has announced the DDR-480 series (480 W) to enable integration into higher-power ...
Read more...The revolution of LTO battery technology 30 June 2020
, Power Electronics / Power Management
Potential applications of LTO technology include solar and alternative energy storage, heavy motor vehicle and industrial applications, as well as power sources for remote communication systems.
Read more...iCoupler technology benefits GaN transistors in AC-DC designs 30 June 2020, Altron Arrow
, Power Electronics / Power Management
Highly efficient AC-DC power supplies are key to the evolution of the telecom and datacom infrastructure, as power consumption grows rapidly due to hyperscale data centres, enterprise servers, or telecom ...
Read more...DC-DC converters with 10-year warranty 29 May 2020, Vepac Electronics
, Power Electronics / Power Management
Addressing a large range of demanding applications, the MGxx40 series is available in three input voltage ranges: 4,5 V to 13 V, 9 V to 36 V and 18 V to 76 V. A single-output version (MGFS40) is available ...
Read more...IGBT for 1500 V PV string inverters 29 May 2020, Altron Arrow
, Power Electronics / Power Management
The solar power market is undergoing a trend towards 1500 V solutions, which allow for more series connections, less cable, fewer generator connection boxes and fewer inverters.
The new EasyPACK 3B ...
printer friendly version