10 Mbps dual-channel digital isolator with 25 kV/µs CMTI
The onsemi HCPL062N is a dual-channel optocoupler rated for 10 Mbps data rate with a 2500 Vrms isolation barrier — enough for basic isolation in industrial fieldbus links, PLC digital inputs, and motor-drive feedback paths. The open-collector output pulls down to the 2.7V–3.3V supply rail, so the output side is strictly 3.3V logic; no 5V tolerance on Vcc. A 25 kV/µs rating means the part holds its output state through a 25 kV/µs slew event on the common-mode voltage — a common failure mode for slower optocouplers in variable-frequency drives. Both channels share a single input-side LED (2/0 input-side count), so the two outputs are driven by the same input signal. This is useful for redundant feedback or driving two isolated loads from one control line, but it means the part cannot handle two independent input signals.
Propagation delay and timing margin for 10 Mbps links
Maximum propagation delay is 90 ns for tpLH and 75 ns for tpHL, with typical rise/fall times of 16 ns and 4 ns. At 10 Mbps (100 ns bit period), the 90 ns tpLH eats most of the bit budget — the receiver must tolerate a 90 ns skew between channels if both are used. The 4 ns fall time is fast enough to avoid edge-rate issues on short PCB traces, but the 16 ns rise time is slower; keep the output load capacitance under 15 mA per channel to avoid stretching the rise further. The 1.75V typical forward voltage and 50 mA max forward current mean the input LED can be driven directly from a 3.3V logic output with a series resistor — no external transistor driver needed for standard logic levels.
Active lifecycle – no end-of-life clock ticking
ROHS3 compliant. The 0.154-inch body height fits under low-profile shrouds. No exposed pad — thermal management relies on the copper pour on the PCB.