AMT49107
Automotive Three-Phase MOSFET Driver
FEATURES AND BENEFITS
• 3-phase bridge MOSFET driver
• Bootstrap gate ...
AMT49107
Automotive Three-Phase MOSFET Driver
FEATURES AND BENEFITS
3-phase bridge MOSFET driver
Bootstrap gate drive for N-channel MOSFET bridge
Cross-conduction protection with adjustable dead time
Charge pump for low supply voltage operation
Operation at any PWM duty cycle up to and including 100%
4.5 to 50 V supply voltage operating range
Supply for external isolator
SPI-compatible serial interface
Bridge control by direct logic inputs or serial interface
Q&A and ENABLE watchdog
Extensive programmable diagnostics
Diagnostic verification
Safety-assist features
Automotive AEC-Q100 qualified
A2-SIL™ product—device features for
2
safety-critical systems*
-
PACKAGE:
48-pin QFN with exposed thermal pad
(suffix EV)
Not to scale
*The AMT49107 was developed in accordance with ISO 26262 as a hardware safety element out of context with ASIL D capability for use in automotive safety-related systems when integrated and used in the manner prescribed in the applicable safety application note and datasheet.
DESCRIPTION
The AMT49107 is an N-channel power MOSFET driver capable of controlling MOSFETs connected in a 3-phase bridge arrangement and is specifically designed for automotive applications with high-power inductive loads, such as BLDC motors.
A unique charge pump
regulator provides the supply for the MOSFET gate drive for battery voltages down to 5.5 V and allows the AMT49107 to operate with a reduced gate drive down to 4.5 V. Gat...