mts62c19a Microchip Technology Inc., mts62c19a Datasheet - Page 11

• Manufacturer Part Number: mts62c19a
• Description: Dual Full-bridge Motor Driver
• Manufacturer: Microchip Technology Inc.

4.0
4.1
The MTS62C19A circuit with external components for
a typical application is shown in
passive component values are: Rs = 1, Rc = 1k, Cc
= 820pF, Rt = 56k and Ct = 820pF.
FIGURE 4-1:
During PWM operation, when the output stage is
turned-on, large voltage peaks might appear across
Rs, which can wrongly trigger the input comparator. To
avoid an unstable current control, an external RcCc fil-
ter should be used that delays the comparator action.
Depending on load type many applications will not
require this filter (SENSE connected to COMPIN).
 2010 Microchip Technology Inc.
APPLICATION CIRCUITS &
ISSUES
Typical Application
5V
PHASE2
PHASE1
VREF1
I02
I12
VREF2
COMPIN1
I01
I11
Typical Application Circuit
Comparator
Comparator
Current
Current
Sense
Sense
Figure
COMPIN2
Cc
Cc
100nF
4-1. Typical
Rt
RC2
One-shot
One-shot
Under-V
Lockout
Rc
Rc
Logic
Logic
VLOGIC
Ct
RC1
Ct
GND
Shift Drivers
Shift Drivers
Shutdown
Rt
Thermal
SENSE1
Rt
VLOAD
Power
Bridge
Power
Bridge
MTS62C19A
100 nF
SENSE2
Rt
100uF
OUT1A
OUT1B
OUT2A
OUT2B
10 to 30V
DS22260A-page 11
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