ST EVAL6206Q User Manual

EVAL6206Q

Dual full bridge with programmable overcurrent

Features

■Voltage range from 8 V to 52 V

■Phase current up to 2.5 Ar.m.s.

■Adjustable overcurrent threshold

■Logic inputs 5 V / 3.3 V compliant

■Small application footprint with high thermal performance

■Suitable for use in combination with PractiSPIN™ 2 software

Description

Data brief

AM11895v1

The EVAL6206Q demonstration board allows the user to test the L6206Q functions. The dual full bridges integrated into the L6206Q can be used to drive a single 2-phase stepper motor or up to four DC motors (unidirectional). The bridges can also operate in parallel mode. The board can be driven using the STEVAL-PCC009V2 communication board and the PractiSPIN 2 evaluation software.

April 2012

Doc ID 023042 Rev 1

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For further information contact your local STMicroelectronics sales office.

www.st.com

Board description	EVAL6206Q

1 Board description

Table 1.	EVAL6206Q electrical specifications
	Parameter	Value
Supply voltage (VS)		8 to 52 V
Maximum output current (each phase)		2.5 Ar.m.s.
Low level logic input voltage		0 V
High level logic input voltage		5 V / 3.3 V (1)
Switching frequency		up to 100 kHz
Operating temperature		- 25 to +125 °C
L6206Q thermal resistance junction-to-ambient		TBD

1. Logic inputs are 3.3 V and 5 V compliant.

Figure 1. Trimmer and connector locations

J3 and J4: OCDX to ENX pin connection

Power supply connector (8 V - 52 V)

Phase A connector

Phase B connector

Control board connector

J7 and J8

CLOSED - OCD theshold regulation through control board.

OPEN - OCD threshold regulation through R13 and R15 resistors (not mounted)

Current sensing connector

AM11896v1

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EVAL6206Q				Board description
	Table 2.	Control board connector pinout (J2)
		Pin	Type	Function
		2	Ground	Ground
		3	Logic input	Input IN1A of L6206Q
		4	Logic input	Input IN2A of L6206Q
		5	Logic input	Input IN1B of L6206Q
		6	Logic input	Input IN2B of L6206Q
		11	Analog input	Overcurrent threshold regulation for A bridge
		12	Analog input	Overcurrent threshold regulation for B bridge
		13	Ground	Ground
		14	Supply voltage	3.3 V supply voltage
		16	Logic input	Input ENA of L6206Q
		23	Ground	Ground
		24	Analog output	Board identification system ID0
		25	Analog output	Board identification system ID1
		27	Logic output	Fault output for A bridge (OCDA output of L6206Q)
		28	Ground	Ground
		29	Logic output	Fault output for B bridge (OCDB output of L6206Q)
		30	Logic input	Input ENB of L6206Q
	Others		Unconnected

Table 3.	Current sensing connector (J9)
Pin		Type	Function
1		Ground	Ground
2		Analog output	SENSEA pin of L6206Q (1)
3		Analog output	SENSEB pin of L6206Q (1)
4		Ground	Ground

1.R22/23 resistor and C12/13 capacitor must be added when output is used. The value of the RC network should be chosen according to the target low-pass frequency of the filter.

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