SLA7062/67 Step Motor Driver

The SLA7062/67 chip is a unipolar driver and can provide up to 3amps. The chip is hard to find and will cost about $10. each. Using Google, I found the three that I needed for my prototypes. Newark (Farnell) sells them but has no stock. The pcb's can be purchased from Batchpcb and below find the BOM and the circuit diagram. This board uses the 10 pin IDC connector (PMinMO) and is compatible with the CNC USB Motion Controller.

http://www.batchpcb.com/index.php/Products/58126

Bill of Material for C:\PCB PIC\SLAgm_02D.PCB
On 4/10/11 at 10:20:11 PM
Count	Label-Value	Pattern	Designation(s)	Mouser #
1	470uf 50v	C+400D200	C1	647-UHE1H471MPD
1	47uf 25v	C+200D80H31	C2	647-UHE1E470MDD
1	.1uf 100V	cap100	C3	80-C320C104K1R
1	56uf 50v	C+250D100H31	C4	647-UHE1H560MED
2	.1uf	cap100	C5 C6	80-C320C104K1R
1	FR202	DIODE0.35	D1	583-FR202-B
1	Dip Sw 2	DIP4	DS1	106-1202-EV
2	Fuse Holder	Fuse3517	F1	534-3517
1	IDC10-S	XIDC10	J1	517-D2510-6002-AR
1	SHeader 3	SIP3	JP1	517-647-01-03
1	LED Green	LED	LD1	638-HLMP1790
2	120R 1/8W 1%	AXIAL0.25	R1 R12	270-120-RC
2	2K2 1/8W 1%	AXIAL0.25	R10 R9	270-2.2K-RC
2	1K 1/8W	AXIAL0.25	R11 R8	299-1K-RC
6	See Text	AXIAL0.5L	R1A R1B R2A R2B R3A R3B	281-0.5-RC
3	220R 1/8W	AXIAL0.25	R2 R3 R4	299-220-RC
1	240R 1/8W 1%	AXIAL0.25	R5	270-240-RC
1	720R 1/8W 1%	AXIAL0.25	R6	270-720-RC
1	1K5 1/8W	AXIAL0.25	R7	299-1.5K-RC
1	4600X-1LF-3.3K	SIP6	RN1	652-4606X-1LF-3.3K
2	BC327	TO-92A	T1 T2	512-BC32740BU
1	STB-5.08 2	TB508A_2	TB1	538-39880-0402
2	STB-5.08 3	TB508-3	TB2 TB3	538-39880-0403
1	500R	TRIM2	TR1	652-3296W-1-500LF
1	SLA7062/67	SLA7062	U1	See Text
1	6N137	DIP8	U2	512-6N137
1	HCPL2630/31	DIP8	U3	512-HCPL-2630
1	LM317 (HV)	TO-220V	U4	LM317HVT Digikey
2	IC Socket 8pin		U2S U3S	517-4808-3004-CP