Pinout and I/O specification

Power connector pinout

Power connection is done by M6 terminals according to this chapter

Signal connector pinout

Signal connector pinout table

Pin number	Pin name	Pin number	Pin name
1	EXT_GND	2	TEMP_GND
3	MSENS_GND	4	+5V_MSENS
5	GPIO_GNDIO2	6	GPIO_GNDIO3
7	CONT-	8	CONT+
9	POWER_GND	10	+5V_EXT
11	TEMP	12	MSENS_4
13	GPIO_GNDIO1	14	IO+10V_OUT
15	IO+5V_OUT	16	CANH
17	KEY	18	EXTTXD
19	MSENS_5	20	MSENS_3
21	GPIO1	22	GPIO3
23	IO+5V_OUT	24	CANL
25	POWER	26	EXTRXD
27	MSENS_1	28	MSENS_2
29	GPIO0	30	GPIO2
31	GPIO4	32	COMRXD
33	COMTXD	34	COMM_GNDIO

USB-C connector pinout

USB-C connector pinout table

Pin number	Pin name
A4, A9, B4, B9	USB5V
A1, A12, B1, B12, CASE	GND
A6, B6	USBDP
A7, B7	USBDM
A5, B5	CC1, CC2

Pin detailed specifications

Controller grounds connection

Function

The controller contains several grounds which are connected to the connectors' pins as shown in the sheme below. Connection between controller heatsink and batt- terminal is also depicted here. Galvanic isolation between GND and GNDIO is meant only as functional isolation to prevent signal inputs and communication interfaces from noise. During normal operation voltage between GND and GNDIO should be close to zero (several volts maximum).

Scheme

Power circuit

Function

The power circuit provides power to the controller's logic. Power to the internal SMPS (Switched-Mode Power Supply) is controlled by an electronic switch. There are several options for powering on/off, which are described below.

Constant on

• The device turns on when the battery voltage is applied to the battery terminals and off when removed.

Internal HW configuration for this variant:

• Key resistor - Attached
• Flip-flop - Removed
• Internal fuse - Attached

Flip-flop

• The device turns on once the battery voltage is applied to the battery terminals and a voltage above 10V is applied to the power pin. The latching function of the flip-flop ensures that it remains turned on even when the voltage on the power pin is disengaged.
• The device turns off once a voltage below 1V is applied to the power pin (usually done by connecting the pin to the GND).
• It is also possible to turn off the device by FW.

Internal HW configuration for this variant:

• Key resistor - Removed
• Flip-flop - Attached
• Internal fuse - Attached

Activation input

• The device turns on once battery voltage is applied to the battery terminals and a voltage above 10V is permanently applied to the power pin.
• The device turns off once the voltage is removed from the power pin.

Internal HW configuration for this variant:

• Key resistor - Removed
• Flip-flop - Removed
• Internal fuse - Attached

Scheme

Specification

Number	Name	Function	Operating range	Maximum rating	Protection
17	KEY	power input for control electronics	0 .. Vbat	0 .. Vbat
25	POWER	power control input (switches controller on/off)	0 .. Vbat	0 .. Vbat	high impedance
9	POWER_GND	power input ground		500 mA	0R jumper

General purpose analog/digital inputs

Function

These inputs can be used for processing analogue and digital voltage levels. These inputs are galvanically isolated from the Power GND, motor sensor GND and external UART GND. The controller offers several isolated power sources. These can be used as a power source for the external components (e.g. throttle). Pull-up and pull-down resistors on all inputs can be set individually by FW parameters.

Scheme

Specification

Number	Name	Function	Operating range	Maximum rating	Protection
13	GPIO_GNDIO1	GPIO ground, isolated from BATT-		100 mA	0R jumper + galvanic isolation
5	GPIO_GNDIO2	GPIO ground, isolated from BATT-		100 mA	0R jumper + galvanic isolation
6	GPIO_GNDIO3	GPIO ground, isolated from BATT-		100 mA	0R jumper + galvanic isolation
15	IO+5V_OUT	5 V power supply output for GPIO, isolated from BATT-		5 V / 100 mA **	galvanic isolation + overcurrent and shortcut
23	IO+5V_OUT	5 V power supply output for GPIO, isolated from BATT-		5 V / 100 mA **	galvanic isolation + overcurrent and shortcut
14	IO+10V_OUT	10 V power supply output for GPIO, isolated from BATT-		10 V / 10 mA **	galvanic isolation + overcurrent and shortcut
29	GPIO0	Input, isolated from BATT-, max +/- 2% error	0 .. 10 V *	0 .. 24 V	galvanic isolation + high impedance
21	GPIO1	Input, isolated from BATT-, max +/- 2% error	0 .. 10 V *	0 .. 24 V	galvanic isolation + high impedance
30	GPIO2	Input, isolated from BATT-, max +/- 2% error	0 .. 10 V *	0 .. 24 V	galvanic isolation + high impedance
22	GPIO3	Input, isolated from BATT-, max +/- 2% error	0 .. 10 V *	0 .. 24 V	galvanic isolation + high impedance
31	GPIO4	Input, isolated from BATT-, max +/- 2% error	0 .. 10 V *	0 .. 24 V	galvanic isolation + high impedance

Note *: range could by extended by FW configuration (pull-up and pull-down resistors)
Note **: see Internal supply parameters

Non-isolated digital inputs

Function

Non-isolated digital inputs are for processing application digital signals (e.g. buttons). These inputs are part of the MSENS circuit and are available only for the MSENS "a" assembly variant. The reference potential is common with the controller's power GND.

Scheme

Specification

Number	Name	Function	Operating range	Maximum rating	Protection
12	MSENS_4	DIN1 (max. 3 V for LOW, min 8 V for HIGH), EXC+, CLK+	0 .. 84 V*	0 .. 100 V*	high impedance
19	MSENS_5	DIN2 (max. 3 V for LOW, min 8 V for HIGH), EXC-, DATA+	0 .. 84 V*	0 .. 100 V*	high impedance
3	MSENS_GND	ground for msens inputs and supply		100 mA	0R jumper

Note *: valid for msens assembly variant "a"

Digital open-drain outputs

Function

Digital open-drain output, capable of driving an inductive load with a maximum current load capacity of 2 A. This output has inbuilt overcurrent and shortcut protection (feedback from current measurement and internal fuse - internal fuse is not replaceable). The output voltage can be controlled by PWM. This digital output is usually used for driving a battery contactor.

Scheme

Specification

Number	Name	Function	Maximum rating	Protection
7	CONT-	contactor negative terminal, PWM switched to GND	2 A	overcurrent protection
8	CONT+	contactor positive terminal	2 A	One-time fuse

Motor position sensor

Variant - a

Function

Motor position sensor variant "a" can process 3 hall sensors or sin/cos position sensors and 2 inputs that can be used as non-isolated digital inputs (more information about DINs here).

MSENS_1 and MSENS_2 inputs have combined functions. These inputs can process digital as well as analogue signals, which means that can be used for sensing two state Halls and also sin and cosine signals. MSENS_3 can be used only for sensing digital signals. All these inputs work in the range from 0 to 5 V. Reference potential is shared with the main GND (internally connected to BATT-).

Scheme

variant - r

Function

Motor position sensor variant "r" can excite the motor resolver and process signals from it.

MSENS_1 and MSENS_2 inputs can process analogue signals and are used for sensing sin and cos outputs from the resolver. MSENS_3 is used as common ground for the sin and cos outputs. Excitation for the resolver is taken from MSENS_4 and MSENS_5. The reference potential is shared with the main GND (internally connected to BATT-).

Scheme

Specification

Number	Name	Function	Operating range	Maximum rating	Protection
3	MSENS_GND	ground for msens inputs and supply		100 mA	0R jumper
4	+5V_MSENS	5 V power supply output for msens		5 V / 100 mA**	overcurrent and shortcut
27	MSENS_1	HALLU (max. 1 V for LOW, min 4 V for HIGH), COS, DATA-, ENCA-	0 .. 5 V	0 .. 12 V	high impedance
28	MSENS_2	HALLV (max. 1 V for LOW, min 4 V for HIGH), SIN, CLK-, ENCB-	0 .. 5 V	0 .. 12 V	high impedance
20	MSENS_3	HALLW (max. 1 V for LOW, min 4 V for HIGH), COM, CLK+, ENCB+	0 .. 5 V	0 .. 12 V	high impedance
12	MSENS_4	DIN1 (max. 3 V for LOW, min 8 V for HIGH),	0 .. 84 V*	0 .. 100 V*	high impedance
19	MSENS_5	DIN2 (max. 3 V for LOW, min 8 V for HIGH),	0 .. 84 V*	0 .. 100 V*	high impedance
12	MSENS_4*	EXC+, ENCREF	0 .. 5 V	0 .. 5.5 V	none
19	MSENS_5*	EXC-, DATA+, ENCA+	0 .. 5 V	0 .. 5.5 V	none

Note *: valid for other msens assembly variant than "a" Note **: see Internal supply parameters

Motor temperature sensor

Function

The motor temperature sensor circuit is designed to work with resistance ranging from 100 Ohms up to 10 kOhms. The TEMP pin has an internal pull-up connected to 5 V, providing power for the motor temperature sensor.

Scheme

Specification

Number	Name	Function	Operating range	Maximum rating	Protection
2	TEMP_GND	ground for temp		100 mA	0R jumper
11	TEMP	motor temperature sensor input, max. 5% error	0 .. 5 V	0 .. 12 V	high impedance

CAN communication interface

Function

CAN communication interface is galvanically isolated from the main power GND. 120 Ohm terminator can be activated via an internal jumper on request or by installing a jumper on the pins closer to the main signal connector. Position of the jumper can be found here.

Scheme

Specification

Number	Name	Function	Operating range	Maximum rating	Protection
24	CANL	CAN communication, isolated from BATT-	0 - 5 V	+/- 70 V*	galvanic isolation
16	CANH	CAN communication, isolated from BATT-	0 - 5 V	+/- 70 V*	galvanic isolation
34	COMM_GNDIO	IO common ground, isolated from BATT-		100 mA	0R jumper + galvanic isolation

Note *: +/- 70V between CANL and CANH only when CAN_GND is connected to neither of these two pins. Other possibilities have not been tested. Contact siliXcon for more information.

Isolated USART communication interface

Function

UARTcom communication interface is galvanically isolated from the main power GND. RX and TX have an operating range of 0 – 5 V. UART interface has also a dedicated 5 V power source for external accessories.

Scheme

Specification

Number	Name	Function	Operating range	Maximum rating	Protection
32	COMRXD	USART communication, isolated from BATT-	0 - 5 V	0 V .. 5.5 V	galvanic isolation
33	COMTXD	USART communication, isolated from BATT-	0 - 5 V	0 V .. 5.5 V	galvanic isolation
23	IO+5V_OUT	Isolated power +5 V supply		110 .. 150 mA*	Overcurrent + galvanic isolation
34	COMM_GNDIO	IO common ground, isolated from BATT-		100 mA	0R jumper + galvanic isolation

Note *: see Internal supply parameters

Non-isolated USART communication interface

Function

UARText communication interface is not galvanically isolated from the main power GND. RX and TX have an operating range of 0 - 5 V. UART interface also has a dedicated 5 V power source for external accessories with a current maximal current rating of 50 mA.

Scheme

Specification

Number	Name	Function	Operating range	Maximum rating	Protection
1	EXT_GND	non-isolated USART communication ground		50 mA	0R jumper
10	+5V_EXT	5 V supply output for non-isolated USART		5 V / 50 mA*	overcurrent and shortcut
18	EXTTXD	USART communication, non-isolated	0 .. 5 V	0 V .. 5.5V	nothing
26	EXTRXD	USART communication, non-isolated	0 .. 5 V	0 V .. 5.5V	nothing

Note *: see Internal supply parameters

USB communicaton interface

Function

USB communication interface is there only for parametrization purposes. This interface is not galvanically isolated from the power GND.

warning

Do not use USB communication with a PC once the motor is driven. There is a risk of damage to the controller or the PC.

Scheme

Specification

Number	Name	Function	Operating range	Maximum rating
A4, A9, B4, B9	USB5V	5 V power supply input	5 V	5.5 V
A1, A12, B1, B12, CASE	GND	USB ground		100 mA
A6, B6	USBDM	Data +	3.3 V	3.6 V
A7, B7	USBDM	Data -	3.3 V	3.6 V
A5, B5	CC1, CC2	USB-C channel configuration

Internal supply parameters

Supply branch	Outputs	Maximum branch current
Unisolated	pin 4 - +5V_MSENS+, pin 10 - +5V_EXT	150 mA
Isolated - LM5017 - d power feature variant	pin 14 - IO+10V_OUT, pin 15 - IO+5V_OUT, pin 23 - IO+5V_OUT	110 mA
Isolated - LM5008 - k power feature variant	pin 14 - IO+10V_OUT, pin 15 - IO+5V_OUT, pin 23 - IO+5V_OUT	50 mA *

Note *: Minimum supply voltage to achieve this parameter is 32 V. If load on unisolated branch is at least 50 mA, minimum supply voltage can be as low as 22 V.

Maximum allowed total current

Controller power feature variant	Used supply	Maximum total current
d	LM5017	260 mA
k	LM5008	150 mA