# Current Sensor Hardware

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drawing drawing drawing
drawing drawing

# Features

  • Support 5.5~30V voltage input
  • Maximum passing current 60A
  • Measurement current accuracy 0.2
  • Мoltage accuracy 0.15V
  • Regulated output provide up to 13W 5.5V/2.5A output
  • LED indicator

# Wiring

Schematic features. Schematic can be provided via issue.

Connectors

The node has connectors which are described in the table below.

N Connector Description
1 CAN1 Supply the power line with Vin voltage and provide the CAN bus.
2 CAN5 Provide CAN bus and regulated 5.5V power
3 PWR-IN XT60 connector for input voltage
4 PWR-OUT XT60 female connector for payload connection
5 SWD1 Firmware update port

Here you can find manufacturer part number of connectors it self and its mates.

# Pin configuration and functions

Pin N CAN1 Pin N CAN5 Pin N PWR-IN Pin N PWR-OUT Pin N SWD1
1 Vcan 1 5V 1 Vbat 1 Vin 1 GND
2 Vcan 2 CAN_H 2 GND 2 GND 2 SWLK
3 CAN_H 3 CAN_L 3 SWDIO
4 CAN_L 4 GND 4 3.3
5 GND
6 GND

Here you can see all connections of MCU.

pinout
MCU PIN PIN Numer NET Name Description
PA7 18 ADC_VERSION Version devider connected here
PA14-BOOT0 36 SWLK
PA13 35 SWDIO
PF2-NRST 10 STM_NRST
PF1-OSC_OUT 9 OSC_OUT 8 Mhz XTAL
PF0-OSC_IN 8 OSC_IN 8 Mhz XTAL
PC13 1 INTERNAL_LED_RED
PC15-OSC32_OUT 3 INTERNAL_LED_BLUE
PC14-OSC32_IN 2 INTERNAL_LED_GREEN
PB2 21 ADC_CAN_CURRENT Measurement of the current passing through the CAN1 port
PD1 39 FDCAN1_TX
PD0 38 FDCAN1_RX
PA0 11 ADC_VIN Measurement of the voltage on Vin
PA6 17 ADC_CURRENT Measurement of the current passing through the PWR-OUT port
PA1 12 ADC_5V Measurement of the voltage on 5V power line

# Specifications

Mechanical

Scheme is shown on the picture below. model can be provided via email request or issue on github or downloaded on GrabCAD (opens new window).

drawing
Width, mm Length, mm Height, mm
Outline 52.4 31.6 12.8
PCB 45.4 30.7 2.0

Total weight of device less than 50 g.

# Housing

Information about case presented here.

# Electrical

Parameter Value
Input voltage 5.5-30V (Up to 50 V)
Maximum current 60A
Voltage accuracy ±0.15V
Current accuracy ±0.2A
Resolution 0.01A/V
5V regulated output 2.5A max

# Absolute Maximum Ratings

Parameter MIN MAX UNIT
Vin (CAN1) 5.5 55* V
V (CAN5) 4.5 5.5 V
I max A
Operating temperature

*Noted Voltage should be delivered only with current limitation under 2.5 Amp.

Parameter Value UNIT
Vin (CAN3) 30 V
V (CAN5) 5 V
I max A

# ESD ratings

Description Value UNIT
Human-body model (HBM) 2000 V
Charged-device model (CDM) 500 V

# MTFF

# Integration

Recommended mechanical mounting

There are no specific recommendations.

Connection example diagram

example.png

# Power Supply Recommendations

Device is designed to operate from an input voltage supply range between 4.5 V and 5.5 V over CAN2 or CAN3 connector, or 5.5 - 30 V from CAN1. This input supply must be able to withstand the maximum input current and maintain a stable voltage. The resistance of the input supply rail should be low enough that an input current transient does not cause a high enough drop that can cause a false UVLO fault triggering and system reset. The amount of bulk capacitance is not critical, but a 47-uF or 100-uF electrolytic capacitor is a typical choice.

# Revision history

View Version Date Description
drawing v3.1.0 12 Oct 2022 init
drawing v3.1.1 1 Sep 2024 hardware mistakes fixed, debug connector added, voltage signal line moved away from coil