DRV8302_16 Datasheet, PDF (1/32 Pages) Texas Instruments – Three Phase Gate Driver

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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
DRV8302
HW Control
3-Phase
Gate Drive
Diff Amps
Brushless
Gate
M
Driver
nFAULT
nOCTW
Buck
Converter
Sense
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.