DRV3245-Q1 Datasheet, PDF (1/5 Pages) Texas Instruments – Three-Phase Automotive Gate Driver

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DRV3245-Q1
SLVSD96 – DECEMBER 2015
DRV3245-Q1 Three-Phase Automotive Gate Driver With Three Integrated Current Shunt
Amplifiers and Voltage Regulator
1 Features
•1 Qualified for Automotive Applications
• Ambient Operating Temperature Range
– AEC-Q100 Grade 1 –40°C to 125°C
• Three integrated Current Sense Amplifiers
• Integrated 50-mA LDO for System Power
• 4.4-V to 45-V Operating Voltage
• 1.25-A/1-A Peak Gate Driver Currents
• Programmable Peak Current Control
• Independent HS/LS Peak Current Control
• Charge Pump Gate Driver for 100% Duty Cycle
• Control Through 3-PWM or 6-PWM Inputs
• Special 1-PWM Mode for Simple Commutation
• Programmable Dead Time
• Fault Reporting Through SPI and HW Pin
• Integrated Watchdog
• FET Shoot-Through Prevention
• Programmable VDS Protection of FETs
• Reverse Battery Protection
• Limp Home Mode Support
• Supports Both 3.3-V/5-V Digital Interface
• Serial Peripheral Interface (SPI)
• Thermally-Enhanced 48-Pin HTQFP (7 × 7 mm)
2 Applications
• Automotive Motor-Control Applications
– Electrical Power Steering (EPS, EHPS)
– Electrical Brake / Brake Assist
– Transmission
– Pumps
3 Description
The DRV3245-Q1 is a gate driver IC for three phase
motor driver safety applications. It provides three
accurate half bridge drivers, each capable of driving a
high-side and low-side N-type MOSFET. A charge
pump support 100% duty cycle at low voltages. The
DRV3245-Q1 integrates three current sense
amplifiers for accurate bidirectional current
measurements along with an integrated 50-mA LDO
for system power.
The device incorporates sophisticated protection and
monitoring features through an SPI. The SPI provides
detail fault reporting and flexible parameter settings
such as gain options for current shunt amplifier, slew
rate control of gate driver, and so forth.
Device Information ⁽¹⁾
PART NUMBER
PACKAGE
BODY SIZE (NOM)
DRV3245-Q1
HTQFP (48)
7.00 mm × 7.00 mm
(1) For all available packages, see the orderable addendum at
the end of the data sheet.
+3.3 V / 5 V
Typical Application Diagram
12 V
PWM
6x/3x/1x
DRV3245-Q1
Driv4e0r
SPI
Protection
FETs
M
Diagno_Wstics
EN/DIS
CSO
ADC
Sense Amps
+
±
LDO
ADC
Ref
+3.3 V / 5 V _Sensors/
Aux Power
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. PRODUCT PREVIEW Information. Product in design phase of
development. Subject to change or discontinuance without notice.