DRV8302 Driver Datasheet

DRV8302 Datasheet, PDF, Equivalent


Part Number

DRV8302

Description

Three-Phase Gate Driver

Manufacture

etcTI

Total Page 30 Pages
Datasheet
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DRV8302
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DRV8302
SLES267C – AUGUST 2011 – REVISED MARCH 2016
DRV8302 Three Phase Gate Driver With Dual Current Shunt Amplifiers and
Buck Regulator – Hardware Controlled
1 Features
1 8-V to 60-V Operating Supply Voltage Range
• 1.7-A Source and 2.3-A Sink Gate Drive Current
Capability
• Bootstrap Gate Driver With 100% Duty Cycle
Support
• 6 or 3 PWM Input Modes
• Dual Integrated Current Shunt Amplifiers With
Adjustable Gain and Offset
• 3.3-V and 5-V Interface Support
• Hardware Control Interface
• Protection Features:
– Programmable Dead Time Control (DTC)
– Programmable Overcurrent Protection (OCP)
– PVDD and GVDD Undervoltage Lockout
(UVLO)
– GVDD Overvoltage Lockout (OVLO)
– Overtemperature Warning/Shutdown
(OTW/OTS)
– Reported through nFAULT and nOCTW pins
2 Applications
• 3-Phase BLDC and PMSM Motors
• CPAP and Pumps
• E-Bikes
• Power Tools
• Robotics and RC Toys
• Industrial Automation
3 Description
The DRV8302 is a gate driver IC for three phase
motor drive applications. It provides three half bridge
drivers, each capable of driving two N-channel
MOSFETs. The device supports up to 1.7-A source
and 2.3-A peak current capability. The DRV8302 can
operate off of a single power supply with a wide
range from 8-V to 60-V. It uses a bootstrap gate
driver architecture with trickle charge circuitry to
support 100% duty cycle. The DRV8302 uses
automatic hand shaking when the high side or low
side MOSFET is switching to prevent current shoot
through. Integrated VDS sensing of the high and low
side MOSFETs is used to protect the external power
stage against overcurrent conditions.
The DRV8303 includes two current shunt amplifiers
for accurate current measurement. The amplifiers
support bi-directional current sensing and provide and
adjustable output offset up to 3 V.
The DRV8302 also includes an integrated switching
mode buck converter with adjustable output and
switching frequency. The buck converter can provide
up to 1.5 A to support MCU or additional system
power needs.
A hardware interface allows for configuring various
device parameters including dead time, overcurrent,
PWM mode, and amplifier settings. Error conditions
are reported through the nFAULT and nOCTW pins.
Device Information(1)
PART NUMBER
PACKAGE
BODY SIZE (NOM)
DRV8302
HTSSOP (56) 14.00 mm × 6.10 mm
(1) For all available packages, see the orderable addendum at
the end of the data sheet.
Simplified Schematic
8 to 60 V
PWM
HW Control
Diff Amps
nFAULT
nOCTW
DRV8302
3-Phase
Brushless
Gate
Driver
Buck
Converter
Gate Drive
Sense
M
Vcc (Buck)
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.

DRV8302
DRV8302
SLES267C – AUGUST 2011 – REVISED MARCH 2016
www.ti.com
Table of Contents
1 Features .................................................................. 1
2 Applications ........................................................... 1
3 Description ............................................................. 1
4 Revision History..................................................... 2
5 Pin Configuration and Functions ......................... 3
6 Specifications......................................................... 5
6.1 Absolute Maximum Ratings ...................................... 5
6.2 ESD Ratings.............................................................. 5
6.3 Recommended Operating Conditions....................... 6
6.4 Thermal Information .................................................. 6
6.5 Electrical Characteristics........................................... 7
6.6 Gate Timing and Protection Characteristics ............. 8
6.7 Current Shunt Amplifier Characteristics.................... 8
6.8 Buck Converter Characteristics ................................ 9
6.9 Typical Characteristics ............................................ 10
7 Detailed Description ............................................ 11
7.1 Overview ................................................................. 11
7.2 Function Block Diagram.......................................... 12
7.3 Feature Description................................................. 13
7.4 Device Functional Modes........................................ 19
8 Application and Implementation ........................ 20
8.1 Application Information............................................ 20
8.2 Typical Application ................................................. 21
9 Power Supply Recommendations...................... 24
9.1 Bulk Capacitance .................................................... 24
10 Layout................................................................... 25
10.1 Layout Guidelines ................................................. 25
10.2 Layout Example .................................................... 25
11 Device and Documentation Support ................. 26
11.1 Documentation Support ........................................ 26
11.2 Community Resources.......................................... 26
11.3 Trademarks ........................................................... 26
11.4 Electrostatic Discharge Caution ............................ 26
11.5 Glossary ................................................................ 26
12 Mechanical, Packaging, and Orderable
Information ........................................................... 26
4 Revision History
NOTE: Page numbers for previous revisions may differ from page numbers in the current version.
Changes from Revision B (February 2016) to Revision C
Page
• Deleted REG 0x02 from the test conditions of the Ioso1 and Iosi1 parameters in the Electrical Characteristics table ............ 7
• Changed the value of R1 + R2 100 KΩ to R1 + R2 1 KΩ in the OC_ADJ section. ....................................................... 17
Changes from Revision A (December 2015) to Revision B
Page
• Changed VEN_BUCK in Buck Converter Characteristics From: MIN = 0.9 V and MAX = 1.55 V To: MIN = 1.11 V
and MAX = 1.36 V. ................................................................................................................................................................ 9
Changes from Original (August 2011) to Revision A
Page
• Added Pin Configuration and Functions section, ESD Rating table, Feature Description section, Device Functional
Modes, Application and Implementation section, Power Supply Recommendations section, Layout section, Device
and Documentation Support section, and Mechanical, Packaging, and Orderable Information section .............................. 1
• VPVDD absolute max voltage rating reduced from 70 V to 65 V ............................................................................................. 5
• Clarification made on how the OCP status bits report in Overcurrent Protection (OCP) and Reporting ............................ 16
• Update to PVDD1 undervoltage protection in Undervoltage Protection (UVLO) describing specific transient brownout
issue. ................................................................................................................................................................................... 17
• Update to EN_GATE pin functional description in EN_GATE clarifying proper EN_GATE reset pulse lengths. ................ 19
• Added gate driver power-up sequencing errata Gate Driver Power Up Sequencing Errdata.............................................. 20
• Added Community Resources ............................................................................................................................................. 24
2 Submit Documentation Feedback
Product Folder Links: DRV8302
Copyright © 2011–2016, Texas Instruments Incorporated


Features Product Folder Sample & Buy Technical Documents Tools & Software Support & Community DRV8302 SLES267C – AUGUST 2011 – REVISED MARCH 2016 DRV8302 Thr ee Phase Gate Driver With Dual Current Shunt Amplifiers and Buck Regulator – Hardware Controlled 1 Features •1 8 -V to 60-V Operating Supply Voltage Ran ge • 1.7-A Source and 2.3-A Sink Gate Drive Current Capability • Bootstrap Gate Driver With 100% Duty Cycle Suppo rt • 6 or 3 PWM Input Modes • Dual Integrated Current Shunt Amplifiers Wit h Adjustable Gain and Offset • 3.3-V and 5-V Interface Support • Hardware Control Interface • Protection Featur es: – Programmable Dead Time Control (DTC) – Programmable Overcurrent Prot ection (OCP) – PVDD and GVDD Undervol tage Lockout (UVLO) – GVDD Overvoltag e Lockout (OVLO) – Overtemperature Wa rning/Shutdown (OTW/OTS) – Reported t hrough nFAULT and nOCTW pins 2 Applicat ions • 3-Phase BLDC and PMSM Motors CPAP and Pumps • E-Bikes • Power Tools • Robotics and RC Toys • Industrial Automation 3 Descripti.
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