DRV10987 Datasheet, PDF (4/69 Pages) Texas Instruments – DRV10987 12- to 24-V, Three-Phase, Sensorless BLDC Motor Driver

DRV10987
SLVSE89 – AUGUST 2017
www.ti.com
PIN
N/AME
HTSSOP
CPN
3
CPP
2
DIR
14
FG
GND
PGND
SCL
SDA
SPEED
SW
SWGND
U
V
V1P8
12
8
15, 16
10
11
13
4
5
17, 18
19, 20
7
V3P3
V_CC
VCP
VREG
W
Thermal pad
(GND)
9
23, 24
1
6
21, 22
—
TYPE
(1)
Pin Functions
DESCRIPTION
P Charge pump pin 1, use a ceramic capacitor between CPN and CPP
P Charge pump pin 2, use a ceramic capacitor between CPN and CPP
Direction;
I When low, phase driving sequence is U → V → W
When high, phase driving sequence is U → W → V
O FG signal output indicates speed of motor
P Digital and analog ground
P Power ground
I
I²C clock signal
I/O I²C data signal
I Speed control signal for PWM or analog input speed command
O Step-down regulator switching node output
P Step-down regulator ground
O Motor U phase
O Motor V phase
P
Internal 1.8-V digital core voltage. V1P8 capacitor must connect to GND. This is an output, but is not
specified to drive external loads.
P
Internal 3.3-V supply voltage. V3P3 capacitor must connect to GND. This is an output and may drive
external loads not to exceed I_{V3P3_MAX}.
P Device power supply
P Charge pump output, use a ceramic capacitor between VCP and V_CC
P Step-down regulator output and feedback point
O Motor W phase
The exposed thermal pad must be electrically connected to the ground plane by soldering to the PCB
P for proper operation, and connected to the bottom side of the PCB through vias for better thermal
spreading.
(1) I = Input, O = Output, I/O = Input/output, P = Power
4
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