Product category:
Power Supply ICs and Controllers
News Release from: Vishay Siliconix | Subject: SiP4610A/B
Edited by the Electronicstalk Editorial
Team on 26 July 2005
Load switch protects the high side
A new protected high-side load switch can operate with a supply voltage range of 2.4 to 5.5V and handle a continuous output current of 1A, with the threshold current set by a single external resistor.
A new protected high-side load switch can operate under a supply voltage range of 2.4 to 5.5V and handle a continuous output current of 1A, with the threshold current set by a single external resistor The SiP4610A/B is designed for applications including load switching, battery switching, USB peripheral ports, and other power management applications in notebook computers, PDAs, MP3 players and other portable and handheld systems, as well as for hot-swapping in telecomms applications
This article was originally published on Electronicstalk on 17 Jun 2003 at 8.00am (UK)
Related stories
Novel power package reduces MOSFET on-resistance
Siliconix has released 14 industry-leading PowerPAK power MOSFETs featuring improved package technology that yields lower on-resistance devices.
Drivers integrate MOSFETs with drive circuitry
Five new Little Foot Plus driver products are designed to simplify the use of N-channel MOSFETs in high-frequency buck regulators.
A user-defined current limit level protects the input supply voltage from excessive load currents that might cause a system failure.
The SiP4610A/B has a low quiescent current of 9uA, and reduces the supply current to less than 1uA in shutdown mode.
In addition to the current limit, the SiP4610A/B is protected by undervoltage lockout and thermal shutdown features.
The overtemperature protection circuit prevents thermal runaway by turning off the power switch when the chip's junction temperature reaches +165C and leaving it off until the temperature drops below +145C.
Providing the ability to selectively turn on and shut down various system functions, and to switch between power supply sources, there are two versions of the power switch.
The SiP4610A has an active low enable input, whereas the SiP4610B has an active high enable input.
Available in lead (Pb)-free 5-pin SC-70 and thin SOT-23 packages, the SiP4610A/B operates within the industrial temperature range of -40 to +85C.
It provides circuit designers with a pin-for-pin replacement for the AAT4610A.
The SiP4610A/B complements the wide range of Vishay Siliconix power switching products, which includes the Si4701BDY (7A) load switch with level shift and the Little Foot Plus families of power MOSFETs with integrated drivers and Schottky diodes (430mA to 13.5A).
Samples and production quantities of the new SiP4610A/B power switch are available now, with lead times of six to eight weeks for larger orders.
Pricing for US delivery in 1000-piece quantities starts at $0.40.
• Vishay Siliconix: contact details and other news
• Email this article to a colleague
• Register for the free Electronicstalk email newsletter
• Electronicstalk Home Page
Search the Pro-Talk network of sites
