1 Features
• Wide high-side supply range: 3V to 27V
• Low-side supply range: 2.7V to 5.5V
• Trip threshold error: ±6mV (max)
• Open-drain and push-pull output
• Propagation delay: 230ns (typ)
• High CMTI:
– Open-drain output: 75V/ns (min)
– Push-pull output: 100V/ns (min)
• Safety-related certifications:
– 7000VPK reinforced isolation per DIN EN IEC
60747-17 (VDE 0884-17)
– 5000VRMS isolation for 1 minute per UL1577
• Fully specified over the extended industrial
temperature range: –40°C to +125°C

2 Applications
• Zero-crossing detection and general-purpose
monitoring in:
– Solid-state relays (SSR)
– Hybrid, electric, and powertrain systems
– Battery-management systems
– Onboard chargers

3 Description
The AMC23C10-Q1 is a precision, isolated
comparator with a short response time. This device
is specifically designed for zero-crossing detection
of high-voltage signals that are galvanically isolated
from low-voltage circuitry. The open-drain and pushpull
outputs are separated from the input circuitry
by an isolation barrier that is highly resistant to
magnetic interference. This barrier is certified to
provide reinforced galvanic isolation up to 5kVRMS
according to VDE 0884-17 and UL1577. This barrier
also supports a working voltage up to 1kVRMS.
The device offers an open-drain and a push-pull
output with a propagation delay of less than 320ns.
The integrated low-dropout (LDO) regulator supports
an operating voltage range of 3V to 27V on the highvoltage
side. Thus, allowing the comparator to be
powered from a wide range of power supplies. The
operating voltage range on the low-side is 2.7V to
5.5V.
The AMC23C10-Q1 is available in an 8-pin, widebody
SOIC package and is specified over the
extended industrial temperature range of –40°C to
+125°C.