DRV8307 Controller Datasheet

DRV8307 Datasheet, PDF, Equivalent


Part Number

DRV8307

Description

Brushless DC Motor Controller

Manufacture

etcTI

Total Page 30 Pages
Datasheet
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DRV8307
SLVSCK2A – APRIL 2014 – REVISED FEBRUARY 2016
DRV8307 Brushless DC Motor Controller
1 Features
1 Three-Phase Brushless DC Motor Controller
– Single PWM Input Controls Speed
• Operating Supply Voltage 8.5 to 32 V
• 30-mA Gate-Drive Current to 6 N-Channel
MOSFETs
• Integrated Current Sense Amplifier
• 5-V Regulator for Hall Sensors
• Low-Power Standby Mode
• Locked Rotor Detection and Restart
• Integrated Overcurrent and Overtemperature
Protection
• 6- × 6-mm VQFN Package, 0.5-mm Pitch
2 Applications
• Industrial Pumps and Fans
• White Goods
• Robotic Appliances
3 Description
The DRV8307 is a three half-bridge pre-driver that
drives six N-type MOSFETs 30 mA with a single
power supply. Aimed at sensored three-phase
brushless DC motors, the DRV8307 is driven by a
single PWM input and supports integrated
commutation logic with three Hall sensor inputs. A
separate 5-V regulator is also included to be used to
power Hall-effect sensors and other external
components.
The DRV8307 includes a current sense input for
current limiting and protection. The current limit can
be set by adjusting the value of the RISENSE sense
resistor.
Motor operation (start and stop) is controlled through
the ENABLEn terminal. If the ENABLEn terminal is
set high and motor rotation has stopped, the device
enters into a low-power standby state, thereby
conserving overall system power during periods of
inactivity.
Protection features are also included in the DRV8307
device such as locked rotor detection, as well as
overcurrent and overtemperature protection and
undervoltage lockout to bolster overall system
robustness and reliability.
Device Information
ORDER NUMBER
PACKAGE
BODY SIZE
DRV8307RHA
VQFN (40)
6 mm × 6 mm
Simplified Schematic
8.5V to 32 V
Controller
(optional)
PWM
ENABLEn
DIR
BRAKE
HALLOUT
FAULTn
DRV8307
BLDC
Controller
Predrive
FETs
M
Commutation
Logic
Current
Regulation
Protection
ISEN
Hall sensors
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.

DRV8307
DRV8307
SLVSCK2A – APRIL 2014 – REVISED FEBRUARY 2016
www.ti.com
Table of Contents
1 Features .................................................................. 1
2 Applications ........................................................... 1
3 Description ............................................................. 1
4 Revision History..................................................... 2
5 Pin Configurations and Functions ....................... 3
6 Specifications......................................................... 5
6.1 Absolute Maximum Ratings ...................................... 5
6.2 ESD Ratings.............................................................. 5
6.3 Recommended Operating Conditions....................... 5
6.4 Thermal Information .................................................. 6
6.5 Electrical Characteristics........................................... 7
6.6 Timing Requirements ................................................ 8
6.7 Typical Characteristics .............................................. 8
7 Detailed Description .............................................. 9
7.1 Overview ................................................................... 9
7.2 Functional Block Diagram ....................................... 10
7.3 Feature Description................................................. 11
7.4 Device Functional Modes........................................ 19
8 Application and Implementation ........................ 20
8.1 Application Information............................................ 20
8.2 Typical Application .................................................. 22
9 Power Supply Recommendations...................... 24
10 Layout................................................................... 24
10.1 Layout Guidelines ................................................. 24
10.2 Layout Example .................................................... 24
11 Device and Documentation Support ................. 25
11.1 Trademarks ........................................................... 25
11.2 Electrostatic Discharge Caution ............................ 25
11.3 Glossary ................................................................ 25
12 Mechanical, Packaging, and Orderable
Information ........................................................... 25
4 Revision History
Changes from Original (April 2014) to Revision A
Page
• Changed Features From: PWM Input for Speed Control To: Single PWM Input Controls Speed......................................... 1
• Changed the Simplified Schematic ........................................................................................................................................ 1
• Changed the DESCRIPTION of pin LOCKn in the Pin Functions table ................................................................................ 4
• Changed the "Power supply voltage MAX value From: 35 To: 42 in the Absolute Maximum Ratings ................................. 5
• Moved the "Storage temperature range" to the Absolute Maximum Ratings ........................................................................ 5
• Changed the Handling Rating table To: ESD Ratings .......................................................................................................... 5
• Added the Timing Requirements ........................................................................................................................................... 8
• Changed text in the Output Pre-Drivers section From: "The low-side gate drive ULSG is driven to VM ..." To: The
low-side gate drive ULSG is driven to VOUTL.." .................................................................................................................... 15
• Added text to the Clock PWM Mode section following Figure 10: "When the DRV8307 is driving a motor,..." ................... 19
• Added the NOTE to the Application and Implementation section ........................................................................................ 20
• Deleted text from the ENABLEn Considerations section: "If ENABLEn is immediately returned to the active state,
the motor slows and stops for 1 s, then starts again." ........................................................................................................ 21
• Added section: Faster Starting and Stopping ...................................................................................................................... 21
• Changed Figure 13 .............................................................................................................................................................. 22
• Changed the Layout Example image .................................................................................................................................. 24
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Product Folder Links: DRV8307
Copyright © 2014–2016, Texas Instruments Incorporated


Features Product Folder Sample & Buy Technical Documents Tools & Software Support & Community DRV8307 SLVSCK2A – APRIL 2 014 – REVISED FEBRUARY 2016 DRV8307 B rushless DC Motor Controller 1 Feature s •1 Three-Phase Brushless DC Motor C ontroller – Single PWM Input Controls Speed • Operating Supply Voltage 8.5 to 32 V • 30-mA Gate-Drive Current t o 6 N-Channel MOSFETs • Integrated Cu rrent Sense Amplifier • 5-V Regulator for Hall Sensors • Low-Power Standby Mode • Locked Rotor Detection and Re start • Integrated Overcurrent and Ov ertemperature Protection • 6- × 6-mm VQFN Package, 0.5-mm Pitch 2 Applicati ons • Industrial Pumps and Fans • W hite Goods • Robotic Appliances 3 De scription The DRV8307 is a three half-b ridge pre-driver that drives six N-type MOSFETs 30 mA with a single power supp ly. Aimed at sensored three-phase brush less DC motors, the DRV8307 is driven b y a single PWM input and supports integ rated commutation logic with three Hall sensor inputs. A separate 5-V regulator is also includ.
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