Datasheet
1
2
3
4
5
6
7
8
9
10
11
12
13
14
15
16
17
18
19
28
27
26
2524
23
22
21
20
ABDECAY
AOUT1
VM
VM
AOUT2
AISEN
ABSTEP
ABUSM0
ABDIR
ABVREF
BISEN
CDVREF
CDDECAY
ABENBLn
V3P3
BOUT2
BOUT1
CDSTEP
CDUSM0
CDDIR
CDENBLn
48
47
46
45
44
43
42
41
40
39
38
37
36
35
34
33
32
31
30
29
PGND
PGND
PGND
PGND
PGND
PGND
Solder these
pins to copper
heatsink area
PGND
PGND
PGND
PGND
PGND
VCP
CP2
CP1
VM
DOUT2
DISEN
DOUT1
VM
ABUSM1
ABRESETn
CISEN
COUT2
CDRESETn
COUT1
CDUSM1
PGND
Solder these
pins to copper
heatsink area
To Logic
ESD
Internal
Pulldown
Hysteresis
DRV8821
SLVS912H –JANUARY 2009–REVISED AUGUST 2013
www.ti.com
Figure 1. Logic Inputs
PIN OUT
DCA PACKAGE
ABSOLUTE MAXIMUM RATINGS
(1) (2)
over operating free-air temperature range (unless otherwise noted)
V
M
Power supply voltage range –0.3 to 34 V
V
I
Logic input voltage range
(3)
–0.5 to 5.75 V
I
O(peak)
Peak motor drive output current, t < 1 μs Internally limited
I
O
Motor drive output current
(4)
1.5 A
P
D
Continuous total power dissipation See Dissipation Ratings Table
T
J
Operating virtual junction temperature range –40 to 150 °C
T
A
Operating ambient temperature range –40 to 85 °C
T
stg
Storage temperature range –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) Input pins may be driven in this voltage range regardless of presence or absence of V
M
.
(4) Power dissipation and thermal limits must be observed.
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