Driver. DRV10975 Datasheet

DRV10975 Datasheet PDF


Part

DRV10975

Description

12-V 3-Phase Sensorless BLDC Motor Driver

Manufacture

etcTI

Page 30 Pages
Datasheet
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DRV10975 Datasheet
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DRV10975, DRV10975Z
SLVSCP2E – JANUARY 2015 – REVISED MAY 2018
DRV10975 12-V, Three-Phase, Sensorless BLDC Motor Driver
1 Features
1 Input Voltage Range: 6.5 to 18 V
• Total Driver H + L rDS(on): 250 mΩ
• Drive Current: 1.5-A Continuous Winding Current
(2-A Peak)
• Sensorless Proprietary Back Electromotive Force
(BEMF) Control Scheme
• Continuous Sinusoidal 180° Commutation
• No External Sense Resistor Required
• For Flexibility User May Include External Sense
Resistor to Monitor Power Delivered to Motor
• Flexible User Interface Options:
– I2C Interface: Access Registers for Command
and Feedback
– Dedicated SPEED Pin: Accepts Either Analog
or PWM Input
– Dedicated FG Pin: Provides TACH Feedback
– Spin-Up Profile Customizable With EEPROM
– Forward-Reverse Control With DIR Pin
• Integrated Step-Down Regulator to Efficiently
Provide Voltage (5 V or 3.3 V) for Internal and
External Circuits
• Supply Current 4.5 mA With Standby Version
(DRV10975)
• Supply Current 80 μA With Sleep Version
(DRV10975Z)
• Overcurrent Protection
• Lock Detection
• Voltage Surge Protection
• UVLO Protection
• Thermal Shutdown Protection
• Thermally-Enhanced 24-Pin HTSSOP
2 Applications
• Appliance Fan
• HVAC
3 Description
The DRV10975 device is a three-phase sensorless
motor driver with integrated power MOSFETs, which
can provide continuous drive current up to 1.5 A. The
device is specifically designed for cost-sensitive, low-
noise, low-external-component-count applications.
The DRV10975 device uses a proprietary sensorless
control scheme to provide continuous sinusoidal
drive, which significantly reduces the pure tone
acoustics that typically occur as a result of
commutation. The interface to the device is designed
to be simple and flexible. The motor can be controlled
directly through PWM, analog, or I2C inputs. Motor
speed feedback is available through either the FG pin
or I2C.
The DRV10975 device features an integrated step-
down regulator to efficiently step down the supply
voltage to either 5 or 3.3 V for powering both internal
and external circuits. The device is available in either
a sleep mode or a standby mode version to conserve
power when the motor is not running. The standby
mode (4.5-mA) version leaves the regulator running
and the sleep mode (80-µA) version shuts it off. Use
the standby mode version in applications where the
regulator is used to power an external microcontroller.
Device Information(1)
PART NUMBER
PACKAGE
BODY SIZE (NOM)
DRV10975
HTSSOP (24)
VQFN (24)
7.80 mm × 6.40 mm
5.00 mm × 4.00 mm
DRV10975Z
HTSSOP (24)
VQFN (24)
7.80 mm × 6.40 mm
5.00 mm × 4.00 mm
(1) For all available packages, see the orderable addendum at
the end of the data sheet.
Application Schematic
0.1 µF
10 µF
3.3 V or 5 V
0.1 µF
39 W
1 µF
1 µF
Interface to
Microcontroller
1 VCP
2 CPP
3 CPN
4 SW
5 SWGND
6 VREG
7 V1P8
8 GND
9 V3P3
10 SCL
11 SDA
12 FG
VCC 24
VCC 23
W 22
W 21
V 20
V 19
U 18
U 17
PGND 16
PGND 15
DIR 14
SPEED 13
VCC
10 µF
M
Copyright © 2016, Texas Instruments Incorporated
1
An IMPORTANT NOTICE at the end of this data sheet addresses availability, warranty, changes, use in safety-critical applications,
intellectual property matters and other important disclaimers. PRODUCTION DATA.

DRV10975 Datasheet
DRV10975, DRV10975Z
SLVSCP2E – JANUARY 2015 – REVISED MAY 2018
www.ti.com
Table of Contents
1 Features .................................................................. 1
2 Applications ........................................................... 1
3 Description ............................................................. 1
4 Revision History..................................................... 2
5 Description (continued)......................................... 4
6 Pin Configuration and Functions ......................... 4
7 Specifications......................................................... 6
7.1 Absolute Maximum Ratings ...................................... 6
7.2 ESD Ratings.............................................................. 6
7.3 Recommended Operating Conditions....................... 7
7.4 Thermal Information .................................................. 7
7.5 Electrical Characteristics........................................... 8
7.6 Typical Characteristics ............................................ 11
8 Detailed Description ............................................ 12
8.1 Overview ................................................................. 12
8.2 Functional Block Diagram ....................................... 13
8.3 Feature Description................................................. 14
8.4 Device Functional Modes........................................ 17
8.5 Register Maps ......................................................... 42
9 Application and Implementation ........................ 48
9.1 Application Information............................................ 48
9.2 Typical Application .................................................. 48
10 Power Supply Recommendations ..................... 50
11 Layout................................................................... 50
11.1 Layout Guidelines ................................................. 50
11.2 Layout Example .................................................... 51
12 Device and Documentation Support ................. 53
12.1 Device Support .................................................... 53
12.2 Documentation Support ........................................ 53
12.3 Trademarks ........................................................... 53
12.4 Electrostatic Discharge Caution ............................ 53
12.5 Receiving Notification of Documentation Updates 53
12.6 Community Resources.......................................... 53
12.7 Glossary ................................................................ 53
13 Mechanical, Packaging, and Orderable
Information ........................................................... 53
4 Revision History
NOTE: Page numbers for previous revisions may differ from page numbers in the current version.
Changes from Revision D (March 2018) to Revision E
Page
• Deleted "Adv. Info" from the VFQN package for both devices in the Device Information table............................................. 1
• Deleted the ADVANCE INFORMATION notation from the pinout drawing of the RHF package........................................... 5
• Deleted the ADVANCE INFORMATION table note from the Pin Functions table ................................................................. 5
• Changed ESD rating for RHF (VQFN) to match PWP (HTSSOP) package .......................................................................... 6
• Deleted "Advance Info." from the RHF (VQFN) column of the Thermal Information table .................................................... 7
• Changed time taken to drive motor after exiting from sleep mode from microseconds to milliseconds ................................ 9
• Changed text from BRKDontThr[2:0] to BRKDoneThr[2:0] to match actual register name ................................................. 23
• Changed the caption for Figure 42....................................................................................................................................... 51
• Added a layout diagram for the VQFN package .................................................................................................................. 52
Changes from Revision C (February 2018) to Revision D
Page
• Added a new package to the Device Information table.......................................................................................................... 1
• Added pin configuration diagram for RHF package ............................................................................................................... 5
• Added pin number information for RHF package to the Pin Functions table ........................................................................ 5
• Added ESD ratings for the RHF (VQFN) package ................................................................................................................ 6
• Added a column to the Thermal Information table for the RHF package............................................................................... 7
• Added timing information for entering and exiting sleep mode and standby mode ............................................................... 9
Changes from Revision B (December 2017) to Revision C
Page
• Added BEMF COMPARATOR hysteresis specification ....................................................................................................... 10
• Updated Start the Motor Under Different Initial Conditions figure ........................................................................................ 21
• Changed the default value for register address 0x27 from 0xFC to 0xF4 in the Default EEPROM Value table ................. 43
• Deleted the "TI recommends..." sentence from the description for address 0x27, bit 3 ...................................................... 46
2 Submit Documentation Feedback
Product Folder Links: DRV10975
Copyright © 2015–2018, Texas Instruments Incorporated


Features Datasheet pdf Product Folder Order Now Technical Doc uments Tools & Software Support & Com munity Reference Design DRV10975, DRV 10975Z SLVSCP2E – JANUARY 2015 – RE VISED MAY 2018 DRV10975 12-V, Three-Pha se, Sensorless BLDC Motor Driver 1 Fea tures •1 Input Voltage Range: 6.5 to 18 V • Total Driver H + L rDS(on): 25 0 mΩ • Drive Current: 1.5-A Continuo us Winding Current (2-A Peak) • Senso rless Proprietary Back Electromotive Fo rce (BEMF) Control Scheme • Continuou s Sinusoidal 180° Commutation • No E xternal Sense Resistor Required • For Flexibility User May Include External Sense Resistor to Monitor Power Deliver ed to Motor • Flexible User Interface Options: – I2C Interface: Access Reg isters for Command and Feedback – Ded icated SPEED Pin: Accepts Either Analog or PWM Input – Dedicated FG Pin: Pro vides TACH Feedback – Spin-Up Profile Customizable With EEPROM – Forward-R everse Control With DIR Pin • Integra ted Step-Down Regulator to Efficiently Provide Voltage (5 V or 3.3 V) for Internal and External C.
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