Intersil Adds SOT23 Voltage Supervisor Family
Intersil Corp. now offers the new ISL88011-ISL88015 product family that includes both fixed and/or adjustable voltage-monitoring with all the functions for critical monitoring, including power-on reset control, customizable supply voltage supervision, watchdog timer capability and manual reset.
By integrating all of these features into a 5-pin SOT23 package and requiring only 5.5µA of supply current, the ISL88011-ISL88015 family can help reduce system cost and board space for process control systems, intelligent instruments, embedded control systems, computers and portable or battery-powered equipment. These devices are also suited for critical processor and controller power monitoring.
"Introducing this family of fully-featured and well-rounded supervisors marks a significant step forward for Intersil in providing our customers with a complete portfolio of system supervisory solutions ranging from single to quintuple (5) voltage monitors," said Davin Lee, vice president and general manager of Intersil's Industrial/Communications Power Management group. "By combining some of the most useful supervisory features together with low power consumption and high threshold accuracy, we aim to address the needs of designers who want to ensure the reliability of their systems without compromising features, performance or cost."
These voltage monitors are accurate to ±1.5 percent from -45°C to 85°C and draw very little current at 4.5µA to 8µA. They also monitor down to 600mV for today's lower power supply voltages and are designed using Intersil's unique TwinPinTM design, which combines active-low reset output and manual reset input into one pin to provide maximum functionality in the same number of pins.
An innovative enhanced watchdog timer for microcontrollers and microprocessors provides a longer start-up timeout at power-on. This allows an operating system to boot, an FPGA to initialize, or system software to start without having to disable the watchdog timer during this time to avoid erroneous resets. Also, in order to provide designers with a full set of options based on their specific application requirements, the ISL88011, ISL88012 and ISL88013 feature fixed voltage trip points while the ISL88014 and ISL88015 provide user-adjustable voltage trip points.
The ISL88011-ISL88015 family is available now in 5-lead SOT-23 packages, with prices starting at $0.88 for the ISL88011 and ISL88014, and $0.99 for the ISL88012, ISL88013 and ISL88015, each in 1,000-unit quantities.
