mts2916a Microchip Technology Inc., mts2916a Datasheet - Page 12

• Manufacturer Part Number: mts2916a
• Description: Dual Full-bridge Motor Driver
• Manufacturer: Microchip Technology Inc.

MTS2916A
4.2
The MTS2916A allows to control a motor in full-step,
half-step, modified half-step and microstepping mode,
as shown in
FIGURE 4-2:
4.3
Unused inputs should be connected to fixed voltage
levels in order to get the highest noise immunity. Typi-
cal PCB layout guidelines for power application should
be followed. These include separate power ground
planes, supply decoupling capacitors close to the IC,
short connections and use of maximized copper areas
to improve thermal dissipation.
DS22259A-page 12
Motor Curr ent
Motor Curr ent
in Phase 1
in Phase 2
PHASE1
PHASE2
VREF1
VREF2
Stepping Examples
PCB Design Guidelines
I01
I11
I02
I12
Figure
1
4-2.
Full-Step
2
Examples of Stepping Modes Achievable with Typical Application Circuit
5V
3
4
1 2 3 4 5 6 7 8
-167mA
Half-Step
5V
+167mA
1 2 3
Modified Half- Step
-333mA
4 5 6 7 8
5V
+333mA
1...
Micro-Stepping (1/8th)
 2010 Microchip Technology Inc.
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5V
0V
5V
+500mA
0
+500mA
0V
-500mA
0
-500mA