mts2916a Microchip Technology Inc., mts2916a Datasheet - Page 10

• Manufacturer Part Number: mts2916a
• Description: Dual Full-bridge Motor Driver
• Manufacturer: Microchip Technology Inc.

MTS2916A
FIGURE 3-3:
Waveform
3.3
A thermal protection circuitry turns off all drivers when
the junction temperature exceeds a safe operating limit
of 170°C (typ.). This protects the devices from failure
due to excessive heating. Despite this thermal protec-
tion, output short circuits are not permitted. The output
drivers are re-enabled once junction temperature has
dropped below 145°C (typ.).
DS22259A-page 10
PHASE
Circuit Protection
Iout
+
0
-
t on
PWM Output Current
td
I
MA X
toff
FIGURE 3-4:
vs. Temperature Showing Hysteresis
An undervoltage lockout circuit protects the MTS2916A
from potential shoot-through currents when the load
supply voltage is applied prior to the logic supply volt-
age. The power bridge and all outputs are disabled if
VLOGIC is smaller than 4V.
With this protection feature, the circuit will withstand
any order of turn-on or turn-off of the supply voltages
VLOGIC and VLOAD. Normal dV/dt values are
assumed.
1
0
thshtd_e n
145°C
Thermal Shutdown Output
 2010 Microchip Technology Inc.
170°C
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