Options allow two channels in one direction, or one channel in each direction, and outputs that default high or low.
They are:
- DCL520C00 2x forward, defaults low
- DCL520D00 2x forward, defaults high
- DCL521C00 1x forward, 1x reverse, defaults low
- DCL521D00 1x forward, 1x reverse, defaults high
The default output state is entered if the input is left open, regardless of whether the input side is powered or not – but note that outputs are not predictable if the output side is un-powered – see data sheet for details.
CMTI (common-mode transient immunity) across the magnetic isolation barrier is typically 100kV/µs (1.5kV common-mode, 25°C), and 3kVrms can be withstood for one minute.
To DIN EN IEC 60747-17, repettitive peak isolation is 566V – see the data sheet for more isolation details.
Minimum clearance is 4mm and minimum creepage 3.8mm. Internal insulation is 17μm thick and the device has a comparative tracking index of 400V.
1MHz input to output capacitance is 800fF.
Minimum pulse width is 6.6ns and propagation delay is typically 10.9ns with 5V supplies dropping slightly to 12.6ns with 2.5V supplies. Typical pulse width distortion is 0.8ns.
For the separate input side and output side power rails, in any combination of 2.25 to 5.5V are allowable – the device is specified at 5V + 5V, 3.3V + 3.3V and 2.5V + 2.5V.
Static supply currents are device and state-dependent, but are largely under 10mA at either end and sometimes ~2mA. At 100MHz, current is under 20mA.
Operation is at ambients across -40 to +125°C (Tj max 150°C).
“The products are suitable for multi-channel high-speed communication applications such as I-O interfaces with UART communication,” said Toshiba.
Find the 150MHz DCL52xx00 digital isolators in this Toshiba data-sheet
In April, Toshiba introduced four-channel 50Mbit/s 100kV/μs isolators for automotive use.
“In the future, the company plans to expand its package line-up and increase the number of channels,” it said.
