DRV8824-Q1_15 Datasheet, PDF (4/30 Pages) Texas Instruments – DRV8824-Q1 Automotive Motor Controller IC

DRV8824-Q1
SLVSCH0 – APRIL 2014
NAME
OUTPUT
ISENA
ISENB
AOUT1
AOUT2
BOUT1
BOUT2
TERMINAL
6
9
5
7
10
8
Terminal Functions (continued)
I/O
DESCRIPTION
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EXTERNAL COMPONENTS
OR CONNECTIONS
IO
Bridge A ground / Isense
IO
Bridge B ground / Isense
O
Bridge A output 1
O
Bridge A output 2
O
Bridge B output 1
O
Bridge B output 2
Connect to current sense resistor for bridge A.
Connect to current sense resistor for bridge B.
Connect to bipolar stepper motor winding A.
Positive current is AOUT1 → AOUT2
Connect to bipolar stepper motor winding B.
Positive current is BOUT1 → BOUT2
7 Specifications
7.1 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 terminal voltage range
–0.5 to 7
V
VREF Input voltage
–0.3 to 4
V
ISENSEx terminal 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 Thermal Information table
T_J
Operating virtual junction temperature range
–40 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.
7.2 Handling Ratings
T_stg
V_ESD
Storage temperature range
HBD (human body model), AEC-Q100 Classification H2
CDM (charged device model), AEC-Q100 Classification C4B
MIN
MAX
UNIT
–60
150
°C
2000
V
750
7.3 Recommended Operating Conditions
V_M
V_REF
I_V3P3
Motor power supply voltage⁽¹⁾
VREF input voltage⁽²⁾
V3P3OUT load current
(1) All V_M terminals 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
4
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