DRV8307_15 Datasheet, PDF (4/34 Pages) Texas Instruments – DRV8307 Brushless DC Motor Controller

DRV8307
SLVSCK2 – APRIL 2014
www.ti.com
Terminal Functions (continued)
TERMINAL
I/O ⁽¹⁾
NAME
NUMBER
DESCRIPTION
LOCKn
18
OD
Outputs a signal that indicates the speed
loop is locked. Open-drain output.
RSVD
23
RSVD
11
RSVD
RSVD
12
Reserved
14
RSVD
15
RSVD
13
POWER STAGE INTERFACE
ISEN
31
I Low-side current sense resistor
U
33
I
V
36
I
Measures motor phase voltages for
V_FETOCP
W
39
I
UHSG
32
O
VHSG
35
O High-side FET gate outputs
WHSG
38
O
ULSG
34
O
VLSG
37
O Low-side FET gate outputs
WLSG
40
O
RSVD
8
RSVD
9
Reserved
RSVD
10
HU+
1
I Hall sensor U positive input
HU–
2
I Hall sensor U negative input
HV+
3
I Hall sensor V positive input
HV–
4
I Hall sensor V negative input
HW+
5
I Hall sensor W positive input
HW–
6
I Hall sensor W negative input
EXTERNAL COMPONENTS OR CONNECTIONS
Can be floating or connected to ground.
Connect to low-side current sense resistor
Connect to motor windings
Connect to high-side ½ H-bridge N-channel FET gate
Connect to low-side ½ H-bridge N-channel FET gate
Do not connect. Leave floating.
Connect to Hall sensors. Noise filter capacitors may be
desirable, connected between the + and – Hall inputs.
4
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