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 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 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 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-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
Hello Latha,
Based on the information provided so far, we have two concerns with the schematic:
GND_FIL and GND_ISO are connected through a CMC in the schematic. The purpose of the isolator is to prevent the common-mode CANBUS noise from transmitting…
Part Number: ISO1042-Q1 Other Parts Discussed in Thread: ISO1042 Can I connect two different IC which works different voltage domain same can bus line? My old nodes are MAX3051EKA+T, I want to use ISO1042BQDWVRQ1 at my new nodes. MAX3051 working at 3.3V, ISO1042…
Part Number: ISO1042 we are using this IC for our CAN network as improved design in our product but we are facing issues at site when multiple node (currently 24 nodes) connected.
This IC CAN H and L acros resistance value strat to reduce and cause whole…