MTS62C19A-HS105 Microchip Technology, MTS62C19A-HS105 Datasheet - Page 8

• Manufacturer Part Number: MTS62C19A-HS105
• Description: Dual Full-Bridge PWM Motor Driver 24 SOIC .300in TUBE
• Manufacturer: Microchip Technology
• Type: Dual Full-Bridge Motor Driverr

Specifications of MTS62C19A-HS105

• 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: MTS62C19A-HS105TR

MTS62C19A
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:
all OFF / coasting (for PHASE = L / reverse: invert A and B in drawings)
TABLE 3-1:
TABLE 3-2:
DS22260A-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
FUNCTIONAL DESCRIPTION
Phase
H
L
L
OUTA
L
PHASE
Na
Pa
CURRENT DIRECTION
CONTROL
POWER BRIDGE GATE CONTROL TRUTH TABLE
1
1
0
0
x
Power bridge control (PHASE = H / forward): (a) bridge ON, (b) source OFF, and (c)
VLOAD
a)
Current flows from OUTxB
Current flows from OUTxA
Rs
overi
SENSE
0
x
0
x
x
Output Current
Pb
OUTB
Nb
to OUTxA
to OUTxB
H
H
T
OFF
0
1
0
1
x
H
OUTA
L
Pa
Na
Reverse OFF
Forward OFF
Reverse ON
Forward ON
Case/Mode
No Current/
Coasting
VLOAD
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
H
H
OFF
gna
H
H
Power Bridge Operation
L
L
L
= Channel T
H
OUTA
L
Pa
Na
gpa
H
H
H
H
L
VLOAD
OFF
 2010 Microchip Technology Inc.
c)
State Flag
Rs
SENSE
gnb
Pb
OUTB
Nb
(Table
H
H
L
L
L
H
L
3-1). The H-
Table
gpb
H
H
H
H
L
3-2.