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| MTS2916A Datasheet, PDF (11/20 Pages) Microchip Technology – Dual Full-Bridge Motor Driver | |||
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MTS2916A
4.0 APPLICATION CIRCUITS
AND ISSUES
4.1 Typical Application
The MTS2916A circuit, with external components for a
typical application, is shown in Figure 4-1. Typical
passive component values are: RS = 1ï, RC = 1 kï,
CC = 820 pF, Rt = 56 kï and Ct = 820 pF.
5V
100 nF
VLOGIC
VLOAD
10 to 30V
100 µF
100 nF
PHASE1
I01
I11
VREF1
PHASE2
I02
I12
Logic
Shift Drivers
Current
Sense
Comparator
One-shot
Under-V
Lockout
Logic
Thermal
Shutdown
Shift Drivers
VREF2
Current
Sense
Comparator
COMPIN1 COMPIN2
One-shot
RC2
RC1 GND
SENSE1
Power
Bridge
OUT1A
OUT1B
Power
Bridge
OUT2A
M
OUT2B
SENSE2
Rt
Ct
Ct
Rt
RS
RS
CC
RC
CC
RC
FIGURE 4-1:
Typical Application Circuit.
During PWM operation, when the output stage is
turned on, large voltage peaks may appear across RS,
which can wrongly trigger the input comparator. To
avoid an unstable current control, an external RcCc
filter should be used that delays the comparator action.
Depending on load type, many applications will not
require this filter (SENSE connected to COMPIN).
ï£ 2010-2013 Microchip Technology Inc.
DS22259C-page 11
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