DRV8320 Datasheet, PDF (1/80 Pages) Texas Instruments – 6 to 60-V Three-Phase Smart Gate Driver

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DRV832x 6 to 60-V Three-Phase Smart Gate Driver
DRV8320, DRV8320R
DRV8323, DRV8323R
SLVSDJ3 – FEBRUARY 2017
1 Features
•1 Triple Half-Bridge Gate Driver
– Drives High-Side and Low-Side
N-Channel MOSFETs
– Supports 100% PWM Duty Cycle
• Smart Gate Drive Architecture
– Adjustable Slew Rate Control
– 10-mA to 1-A Peak Source Current
– 20-mA to 2-A Peak Sink Current
• Integrated Gate Driver Power Supplies
– High-Side Charge Pump
– Low-Side Linear Regulator
• 6 to 60-V Operating Voltage Range
• Optional Integrated Buck Regulator
– LMR16006X SIMPLE SWITCHER^®
– 4 to 60-V Operating Voltage Range
– 0.8 to 60-V, 600-mA Output Capability
• Optional Integrated Triple Current
Shunt Amplifiers
– Adjustable Gain (5, 10, 20, 40 V/V)
– Bidirectional or Unidirectional Support
• Selectable SPI or Hardware Interface
• 6x, 3x, 1x, and Independent PWM Modes
• Supports 1.8-V, 3.3-V, and 5-V Logic Inputs
• Low-Power Sleep Mode (20-µA)
• Linear Voltage Regulator, 3.3 V, 30 mA
• Compact QFN Packages and Footprints
• Integrated Protection Features
– VM Undervoltage Lockout (UVLO)
– Charge Pump Undervoltage (CPUV)
– MOSFET Overcurrent Protection (OCP)
– Gate Driver Fault (GDF)
– Thermal Warning and Shutdown (OTW/OTSD)
– Fault Condition Indicator (nFAULT)
2 Applications
• BLDC Motor Modules
• CPAPs, Fans, and Pumps
• E-Bikes
• Power Tools and Lawn Appliances
• Drones, Robotics, and RC Toys
• ATM and Currency Counting
3 Description
The DRV832x family of devices are integrated gate
drivers for three-phase applications. The devices
provides three half-bridge gate drivers, each capable
of driving high-side and low-side N-channel power
MOSFETs. The DRV832x generates the proper gate
drive voltages using an integrated charge pump for
the high-side MOSFETs and a linear regulator for the
low-side MOSFETs. The smart gate drive architecture
supports up to 1-A source and 2-A sink peak gate
drive current capability. The DRV832x can operate
from a single power supply and supports a wide input
supply range of 6 to 60-V for the gate driver and 4 to
60-V for the optional buck regulator.
The 6x, 3x, 1x, and independent input PWM modes
allow for simple interfacing to controller circuits. Gate
drive and device configuration settings are highly
configurable through a SPI or hardware (H/W)
interface. The DRV8323 and DRV8323R devices
have three, integrated low-side shunt amplifiers that
allow bidirectional current sensing on all three phases
of the drive stage. The DRV8320R and DRV8323R
devices integrate a 600-mA buck regulator.
A low-power sleep mode is provided to achieve low
quiescent current draw by shutting down most of the
internal circuitry. Internal protection functions are
provided for undervoltage lockout, charge pump fault,
MOSFET overcurrent, MOSFET short circuit, gate
driver fault, and overtemperature. Fault conditions are
indicated on the nFAULT pin with details through the
device registers for SPI device variants.
Device Information⁽¹⁾
PART NUMBER
PACKAGE
BODY SIZE (NOM)
DRV8320
WQFN (32)
5.00 mm × 5.00 mm
DRV8320R
VQFN (40)
6.00 mm × 6.00 mm
DRV8323
WQFN (40)
6.00 mm × 6.00 mm
DRV8323R
VQFN (48)
7.00 mm × 7.00 mm
(1) For all available packages, see the orderable addendum at
the end of the data sheet.
Simplified Schematic
6 to 60 V
DRV832x
PWM
SPI or H/W
Three-Phase
Smart Gate Driver
Gate Drive
M
nFAULT
Current Sense
600 mA
Protection
3x Shunt Amplifiers
Buck Regulator
Current
Sense
Copyright © 2017, 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.