The PT7M3808G family of microprocessor supervisory circuits monitor system voltage form 0.4V to 5.0V, asserting an open-drainRESET signal when the SENSE voltage drops below a preset threshold or when the manual reset (MR ) pin drops to a logic low. The RESET output remains low for the user-adjustable delay time after the SENSE voltage and manual reset (MR ) return above the respective thresholds.
DSP or Microcontroller Applications capacitor.
Hand-Held Products battery-powered applications.
Power-On Reset Generator with Adjustable Delay Time: 1.25ms to 10s.
Very Low Quiescent Current: 2.8µA Typical
High Threshold Accuracy: 0.5% Typ.
Fixed Threshold Voltages for Standard Voltage Rails from 0.9V to 5V A18and Adjustable Voltage Down to 0.4V are available.
Manual Reset (MR ) Input.
Open-Drain RESET Output.
Temperature Range: -40°C to +125°C
Package: TDFN2.0x2.0-6L and SOT23-6L
Fixed Detect Voltages
0.405, 0.84, 1.12, 1.4, 1.67, 2.33, 2.79, 3.07, 4.65 V
There are several types of jitter, but the main ones are: cycle-to-cycle jitter, period jitter, half period jitter, and peak-to-peak jitter. Jitter terminology can be found in AB36: Jitter Measurement Techniques at Application Brief No. 36 or Application Note No. 27.
What are the types of reset output?
There are two types of reset output: push-pull and open-drain as different applications require. If you choose open-drain reset output, pull-up resistor should be added in application circuit. For detailed information, please refer to datasheets or application notes.
What is the lead finish for Pericom products? What about lead-free?
All Pericom's products that are not lead-free are composed of 85% Sn and 15% Pb. For lead-free products, they are composed of 100% matte Sn. Lead-free products are marked and ordered with the letter "E" suffix at the end of the part number.
Where can I find Mean Time Before Failure (MTBF) or Failures In Time (FIT) values for Pericom products?
FIT and MTBF data can be found at Pericom's Quality webpage.
Where can I find the information on your Pb-free and "Green" packaging?