The AAT4614 from AnalogicTech is a current-limited P-channel MOSFET power switch for high-side load switching applications.
The device provides hot swap capabilities with programmability to maximise protection, reverse blocking to control reverse current potentials and a fault flag to indicate over-current or over-temperature conditions, giving it a smaller footprint than alternative discrete solutions.
Operating across an input range of 2,4 V to 5,5 V, the AAT4614 can be used in both 3 V and 5 V systems. When the input drops below 2,4 V, an under-voltage lockout circuit automatically shuts down operation to avoid saturation. To protect the device against large input currents which could cause the supply to fall out of regulation, the load switch features an over-current threshold which is programmable up to 1,6 A via a resistor. A one-microsecond current limit transient response reduces the requirements for local supply bypassing.
The IC adds a reverse current blocking capability to protect the device from reverse current potentials when disabled. In addition, it features an open drain FAULT flag to indicate an over-current or over-temperature condition. A 4 ms blanking time prevents false reporting during charge of a capacitive load.
The AAT4614 also features an RDS(ON) of 130 m.
To conserve power, quiescent current is only 10 μA, while in shutdown mode, supply current decreases to less than 1 μA. The switch also features an over-temperature protection circuit that automatically switches the device off if die temperature exceeds a pre-defined limit. Qualified over a -40°C to +85°C temperature range, the AAT4614 is available in a lead-free 8-pin SC70JW, a 6-pin SOT23 or a 5-pin SOT23 package.
Powering Innovation eBook: Changing what’s possible
Power Electronics / Power Management
This exclusive read, entitled ‘Changing what’s Possible,’ delves into how power dense Vicor modules enable many world-changing innovations across various sectors.
Read more...16-channel multicell battery monitor Altron Arrow
Power Electronics / Power Management
The ADBMS6830B is a multicell battery stack monitor that measures up to 16 series-connected battery cells with a lifetime total measurement error of less than 2 mV.
Read more...Reliable redundancy with the Mibbo M3DN Series Conical Technologies
Power Electronics / Power Management
Designed for use with two parallel-connected power supplies, the M3DN Series allows for true redundancy, making it ideal for mission-critical applications.
Read more...Automotive power-over-coax inductor RS South Africa
Power Electronics / Power Management
TDK has launched the ADL8030VA, a high-performance inductor designed specifically for power-over-coaxial applications.
Read more...Rugged PSU for challenging conditions Conical Technologies
Power Electronics / Power Management
Built for rugged reliability, the Mibbo MFC Series delivers stable, efficient power in environments where moisture, dust, and temperature extremes are everyday challenges.
Read more...Enhance SiC device efficiency using merged-pin Schottky diodes NuVision Electronics
Editor's Choice Power Electronics / Power Management
Silicon carbide (SiC) has advantages over silicon (Si) that make it particularly suitable for Schottky diodes in applications such as fast battery chargers, photovoltaic (PV) battery converters, and traction inverters.
Read more...15 W power module with wide input range Brabek
Power Electronics / Power Management
RECOM’s miniature power modules provide 15 W output and operate over a wide input range of 18-264 V AC or 18-375 V DC.
Read more...Industrial-grade DIN rail PSU Conical Technologies
Power Electronics / Power Management
The Mibbo MTR960W is a reliable and cost-effective PSU option that delivers a solid 960 W of output power at 24?or 48 V DC.
Read more...Energy harvesting and Matter for smarter homes RF Design
Power Electronics / Power Management
Qorvo’s collaboration with e-peas on the Matter Enabled Light Switch marks another significant step in advancing Matter adoption across the IoT industry.
Read more...3-terminal filters for automotive applications RS South Africa
Power Electronics / Power Management
TDK has expanded its YFF series of 3-terminal filters for automotive applications to include higher voltages up to 35 V and higher capacitances up to 4,7 µF.
While every effort has been made to ensure the accuracy of the information contained herein, the publisher and its agents cannot be held responsible for any errors contained, or any loss incurred as a result. Articles published do not necessarily reflect the views of the publishers. The editor reserves the right to alter or cut copy. Articles submitted are deemed to have been cleared for publication. Advertisements and company contact details are published as provided by the advertiser. Technews Publishing (Pty) Ltd cannot be held responsible for the accuracy or veracity of supplied material.
printer friendly version