MTS2916A-HGC1 Microchip Technology, MTS2916A-HGC1 Datasheet - Page 8

• Manufacturer Part Number: MTS2916A-HGC1
• Description: Dual Full-Bridge PWM Motor Driver 24 SOIC .300in TUBE
• Manufacturer: Microchip Technology
• Type: Dual Full-Bridge Motor Driverr

Specifications of MTS2916A-HGC1

• 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
• Peak Reflow Compatible (260 C): Yes
• Rohs Compliant: Yes
• Motor Type: Full Bridge
• No. Of Outputs: 2
• Output Current: 1A
• Supply Voltage Range: 10V To 40V
• Driver Case Style: SOIC
• No. Of Pins: 24
• Operating Temperature Range: -20°C To +85°C
• Lead Free Status / RoHS Status: Lead free / RoHS Compliant
• Lead Free Status / RoHS Status: Lead free / RoHS Compliant
• Other names: MTS2916A-HGC1TR

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.