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| DRV8802-Q1_15 Datasheet, PDF (16/26 Pages) Texas Instruments – DRV8802-Q1 Automotive DC Motor-Driver IC | |||
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DRV8802-Q1
SLVSCI2A â JUNE 2014 â REVISED JUNE 2014
www.ti.com
Layout Guidelines (continued)
CPH pins. TI recommends a value of 0.01-μF rated for VM. Place this component as close to the pins as
possible. A low-ESR ceramic capacitor must be placed in between the VMA and VCP pins. TI recommends a
value of 0.1-μF rated for 16 V. Place this component as close to the pins as possible. Also, place a 1-MΩ resistor
between VCP and VMA. Bypass V3P3 to ground with a ceramic capacitor rated 6.3 V. Place this bypass
capacitor as close to the pin as possible.
10.2 Layout Example
0.1 µF
0.01 µF
1 M 0.1 µF
R(ISENA)
R(ISENB)
0.1 µF
CP1
CP2
VCP
VMA
AOUT1
ISENA
AOUT2
BOUT2
ISENB
BOUT1
VMB
AVREF
BVREF
GND
GND
BI1
BI0
AI1
AI0
BPHASE
BENBL
AENBL
APHASE
DECAY
nFAULT
nSLEEP
nRESET
V3P3OUT
Figure 11. DRV8802-Q1 Layout Example
0.47 µF
10.3 Thermal Information
10.3.1 Thermal Protection
The DRV8802-Q1 device has thermal shutdown (TSD) as described in the Thermal Shutdown (TSD) section. If
the die temperature exceeds approximately 150°C, the device is disabled until the temperature drops below the
hysteresis level.
Any tendency of the device to enter TSD is an indication of either excessive power dissipation, insufficient
heatsinking, or too high an ambient temperature.
16
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Copyright © 2014, Texas Instruments Incorporated
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