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EF_OVD

Efabless

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Over-Voltage Detector (OVD)

Description

This IP is an over-voltage detector with a selectable trip point. It was taped out on the CI2404 Efabless Chipalooza tapeout. The specifications below are target specifications. Check back for characterized numbers once the silicon is characterized.

Pinout

Pin name Use Domain Notes
avdd analog power 3.3-5.5V
dvdd digital power 1.8V
avss analog ground
dvss digital ground
ena enable dvdd domain
vbg bandgap reference voltage
ibias input bias current
ovout alarm output dvdd domain
vtrip[3:0] trip point select dvdd domain

Specifications

Parameter Min Typical Max Unit Notes
Input Supply Voltage 3 3.3 5.5 V Supply being measured. May or may not power the block.
Digital Supply Voltage 1.65 1.8 1.97 V
Operating Temperature Range -40 25 85 °C Commercial temperature range
Alarm Voltage Threshold 3.3 3.6 5.5 V Threshold temperature for triggering the alarm
Hysteresis Voltage 0.1 0.2 0.3 V To prevent rapid on/off around the threshold
Power Consumption 5 10 20 µA Lower due to simpler circuitry
Output voltage 0 1.8 V CMOS digital voltage level
Response Time 10 20 50 µs Time to trigger alarm after exceeding threshold
Quiescent Current 0.5 2 5 µA Idle state consumption
Accuracy -0.1 0.1 V At the alarm threshold

Summary

Catalog ID

EF_OVD

Provider

Vendor

Vendor

Efabless

Node

130nm

Foundry

Skywater

Category

Power Module

Licensing

Info

Open Source (Free)

Quality

Certification

EF Certified

Maturity

Integrated