MTS2916A-LGC1 Microchip Technology, MTS2916A-LGC1 Datasheet - Page 8
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MTS2916A-LGC1
Manufacturer Part Number
MTS2916A-LGC1
Description
Dual Full-Bridge PWM Motor Driver 24 SOIC .300in T/R
Manufacturer
Microchip Technology
Type
Dual Full-Bridge Motor Driverr
Datasheet
1.MTS2916A-HGC1.pdf
(18 pages)
Specifications of MTS2916A-LGC1
Product
Stepper Motor Controllers / Drivers
Operating Supply Voltage
10 V to 40 V
Supply Current
0.8 mA
Mounting Style
SMD/SMT
Package / Case
SOIC-24
Operating Temperature
- 20 C to + 85 C
Lead Free Status / RoHS Status
Lead free / RoHS Compliant
Lead Free Status / RoHS Status
Lead free / RoHS Compliant
Available stocks
Company
Part Number
Manufacturer
Quantity
Price
Part Number:
MTS2916A-LGC1
Manufacturer:
MICROCH
Quantity:
20 000
MTS2916A
3.0
The circuit is designed to drive the two windings of a
bipolar stepper motor and can be divided in two identi-
cal channels (channel 1 and channel 2) and protection
circuitry for over temperature and undervoltage. The
functionality of a channel and protection circuitry is
presented on next sections.
FIGURE 3-1:
TABLE 3-1:
TABLE 3-2:
DS22259A-page 8
Legend: Bold = Active MOS Transistors, Overi = Overcurrent flag, T
00/01/10
00/01/10
00/01/10
00/01/10
I0I1
11
Legend: a) Bridge ON, b) Source OFF, c) All OFF/Coasting
Note: For PHASE = L/Reverse, invert A and B in drawings.
L
OUTA
L
FUNCTIONAL DESCRIPTION
PHASE
Na
Pa
H
L
PHASE
VLOAD
CURRENT DIRECTION
CONTROL
POWER BRIDGE GATE CONTROL TRUTH TABLE
1
1
0
0
x
a)
Power Bridge Control (PHASE = H/Forward)
Rs
SENSE
Current flows from OUTxB
Current flows from OUTxA
overi
Pb
OUTB
Nb
0
x
0
x
x
Output Current
H
H
to OUTxA
to OUTxB
T
OFF
H
OUTA
L
0
1
0
1
x
Pa
Na
Reverse OFF
Forward OFF
Reverse ON
Forward ON
Case/Mode
No Current/
VLOAD
Coasting
b)
Rs
SENSE
3.1
Each motor winding is driven by an H-type bridge
consisting of two N and two P transistors that allow the
current to flow in both winding directions depending on
the value of the PHASE signal
bridge can be set in 5 configurations that are related to
the digital inputs PHASE, I0 and I1, and to the current
sensed. These configurations are given in
Pb
OUTB
Nb
OFF
H
H
gna
H
H
Power Bridge Operation
L
L
L
= Channel T
H
OUTA
L
gpa
Pa
Na
H
H
H
H
L
OFF
2010 Microchip Technology Inc.
State Flag
VLOAD
c)
gnb
Rs
(Table
H
H
L
L
L
SENSE
Pb
OUTB
Nb
3-1). The H-
Table
H
L
gpb
H
H
H
H
L
3-2.