DRV10975_15 Datasheet, PDF (3/57 Pages) Texas Instruments – DRV10975 12-V, Three-Phase, Sensorless BLDC Motor Driver

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DRV10975
SLVSCP2 – JANUARY 2015
6 Description (continued)
An I²C interface allows the user to reprogram specific motor parameters in registers and program the EEPROM
to help optimize the performance for a given application. The DRV10975 is available in a thermally-efficient
HTSSOP, 24-pin package with an exposed thermal pad. The operating temperature is specified from –40°C to
125°C.
7 Pin Configuration and Functions
VCP
CPP
CPN
SW
SWGND
VREG
V1P8
GND
V3P3
SCL
SDA
FG
24 Pins
Top View
1
24
2
23
3
22
4
21
5
20
6
19
7
PowerPAD ₁₈
8
17
9
16
10
15
11
14
12
13
VCC
VCC
W
W
V
V
U
U
PGND
PGND
DIR
SPEED
Pin Functions
PIN
I/O ⁽¹⁾
N/AME
NO.
DESCRIPTION
VCP
1
P Charge pump output
CPP
2
P Charge pump pin 2, use a ceramic capacitor between CPN and CPP
CPN
3
P Charge pump pin 1, use a ceramic capacitor between CPN and CPP
SW
4
O Step-down regulator switching node output
SWGND
5
P Step-down regulator ground
VREG
6
P Step-down regulator output and feedback point
V1P8
7
P
Internal 1.8-V digital core voltage. V1P8 capacitor must connect to GND. This is an output, but not
specified to drive external loads.
GND
8
P Digital and analog ground
V3P3
SCL
SDA
9
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}.
10
I I²C clock signal
11
I/O I²C data signal
FG
12
O FG signal output
SPEED
13
I Speed control signal for PWM or analog input speed command
DIR
14
I Direction
PGND
15
P Power ground
16
17
U
O Motor U phase
18
19
V
O Motor V phase
20
(1) I = Input, O = Output, NC = No connect, P = Power
Copyright © 2015, Texas Instruments Incorporated
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