mts62c19a Microchip Technology Inc., mts62c19a Datasheet - Page 10

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

MTS62C19A
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.).
DS22260A-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
MTS62C19A from potential shoot-through currents
when the load supply voltage is applied prior to the
logic supply voltage. 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.
undervoltage
1
0
thshtd_e n
145°C
lockout
Thermal Shutdown Output
 2010 Microchip Technology Inc.
170°C
circuit
protects
the