DRV8812_15 Datasheet, PDF (5/22 Pages) Texas Instruments – DUAL-BRIDGE MOTOR CONTROLLER IC

DRV8812
www.ti.com
SLVS997F – OCTOBER 2009 – REVISED AUGUST 2013
ABSOLUTE MAXIMUM RATINGS
over operating free-air temperature range (unless otherwise noted) ^{(1) (2)}
VALUE
UNIT
VMx Power supply voltage range
–0.3 to 47
V
Digital pin voltage range
–0.5 to 7
V
VREF Input voltage
–0.3 to 4
V
ISENSEx pin voltage
–0.3 to 0.8
V
Peak motor drive output current, t < 1 μS
Continuous motor drive output current⁽³⁾
Internally limited
A
1.6
A
Continuous total power dissipation
See Dissipation Ratings table
T_J
Operating virtual junction temperature range
T_A
Operating ambient temperature range
T_stg
Storage temperature range
–40 to 150
°C
–40 to 85
°C
–60 to 150
°C
(1) Stresses beyond those listed under absolute maximum ratings may cause permanent damage to the device. These are stress ratings
only, and functional operation of the device at these or any other conditions beyond those indicated under recommended operating
conditions is not implied. Exposure to absolute–maximum–rated conditions for extended periods may affect device reliability.
(2) All voltage values are with respect to network ground terminal.
(3) Power dissipation and thermal limits must be observed.
THERMAL INFORMATION
THERMAL METRIC⁽¹⁾
θ_JA
θ_JCtop
θ_JB
ψ_JT
ψ_JB
θ_JCbot
Junction-to-ambient thermal resistance⁽²⁾
Junction-to-case (top) thermal resistance⁽³⁾
Junction-to-board thermal resistance⁽⁴⁾
Junction-to-top characterization parameter⁽⁵⁾
Junction-to-board characterization parameter⁽⁶⁾
Junction-to-case (bottom) thermal resistance⁽⁷⁾
DRV8812
PWP
RHD
28 PINS
28 PINS
38.9
35.8
23.3
25.1
21.2
8.2
0.8
0.3
20.9
8.2
2.6
1.1
UNITS
°C/W
(1) For more information about traditional and new thermal metrics, see the IC Package Thermal Metrics application report, SPRA953.
(2) The junction-to-ambient thermal resistance under natural convection is obtained in a simulation on a JEDEC-standard, high-K board, as
specified in JESD51-7, in an environment described in JESD51-2a.
(3) The junction-to-case (top) thermal resistance is obtained by simulating a cold plate test on the package top. No specific JEDEC-
standard test exists, but a close description can be found in the ANSI SEMI standard G30-88.
(4) The junction-to-board thermal resistance is obtained by simulating in an environment with a ring cold plate fixture to control the PCB
temperature, as described in JESD51-8.
(5) The junction-to-top characterization parameter, ψ_JT, estimates the junction temperature of a device in a real system and is extracted
from the simulation data for obtaining θ_JA, using a procedure described in JESD51-2a (sections 6 and 7).
(6) The junction-to-board characterization parameter, ψ_JB, estimates the junction temperature of a device in a real system and is extracted
from the simulation data for obtaining θ_JA , using a procedure described in JESD51-2a (sections 6 and 7).
(7) The junction-to-case (bottom) thermal resistance is obtained by simulating a cold plate test on the exposed (power) pad. No specific
JEDEC standard test exists, but a close description can be found in the ANSI SEMI standard G30-88.
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RECOMMENDED OPERATING CONDITIONS
over operating free-air temperature range (unless otherwise noted)
V_M
V_REF
I_V3P3
Motor power supply voltage range⁽¹⁾
VREF input voltage⁽²⁾
V3P3OUT load current
(1) All V_M pins must be connected to the same supply voltage.
(2) Operational at VREF between 0 V and 1 V, but accuracy is degraded.
MIN
NOM
MAX UNIT
8.2
45
V
1
3.5
V
1
mA
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