Part Number: ISO1042 Tool/software: Hi
I have an ISO1042 circuit that I can't get to transmit or receive any CAN messages. It's a copy from a reference design so I'm a bit confused! One issue I see is that we are using NTE0505MC-B transformers to isolate…
Part Number: ISO1042 Tool/software: I am using ISO1042QDWRQ1 for CAN communication. I have been using a series current limiter resistor of 100E/0.75W on the output CAN_H and CAN_L. I also have used split termination for 120E impedance (2 x 60.4 ohm)…
Part Number: ISO1042 Hello TI,
I am using ISO1042 CAN transceiver to communicate with other controller with my controller. In the datasheet it was recommended to use 4.7uF bulk capacitor at Vcc2. Could you please suggest whats the size of the capacitor…
Hello Vishal,
Good question. The propagation delay will be heavily affected by bus capacitance. The spec is tested under specific load conditions for this reason. The load conditions are an RL = 60ohm and a CL = 100pF. Changing data rate should note affect…
Hi Daniel,
Apologies for the delay in response and thank you for your patience.
ISO1042-Q1 datasheet provides barrier capacitance (CIO, 1pF) and insulation resistance (RIO, >1GΩ) in datasheet under section titled Insulation Specifications. For DC stress…
Part Number: ISO1042 Tool/software: Hi Team,
I am interfacing an isolated can transceiver with my microcontroller . My schematic is given below.
Accidently TXD is connected to RXD of microcontroller and RXD is connected to TXD of the microcontroller. …
Part Number: ISO1042 Hi,
A follow up on the thread that discussed the max CAN bitrate versus the Recessive bit RC decay:
We are considering a protective network at each CAN node consisting av a simple bidirectional TVS from both CAN_H and CAN_L to the…
Part Number: ISO1042-Q1 The operating voltage range for primary side is specified from 1.7V to 5.5V (ABS 6V), does the Vin on signal inputs are 5V tolerated when Vcc1 set to 3.3V or 2.5V?
Best Regards,
Robert
Part Number: ISO1042 Hi,
I'm trying to calculate the theoretical max CAN bus speed and have used the recessive RC decay time "method". However, as I understand it the max bitrate with respect to the RC decay time might not be the final limiting factor…
Part Number: ISO1042-Q1 What is the max ripple on Vcc2 of the device can keep it function normally?
Is there any specification on Vcc2 (power noise reduction ratio) other than Vcc2 range?
Best Regards,
Robert