CAMPBELL, Calif., July 9, 2024
/PRNewswire/ -- HMI, a leading provider of advanced analog and
power management technologies, today announced the launch of its
HL8545 and HL8545G, advanced quad-channel, high-side switches
designed to meet the demanding requirements of today's automotive
systems.
The HL8545/8545G are a versatile quad-channel, high-side power
switches with an integrated NMOS power FET and charge pump. Both
versions are equipped with advanced protective features, including
load current limitation, open or short-load power limitation during
overload, and over-temperature shutdown with configurable latch-off
or auto-retry. These high-accuracy current sensing capabilities and
full diagnostics enable intelligent load control. The HL8545
requires an external ground diode for reverse battery conditions to
prevent reverse current from ground to battery, while the HL8545G
does not.
The devices feature active drain and source voltage clamps,
which help manage the energy in inductive loads like relays,
solenoids, pumps, and motors during the switching-off cycle. The
energy from both the power supply (EBAT) and the load
(ELOAD) is dissipated directly on the high-side power
switch, often eliminating the need for additional external
circuitry. This efficient power dissipation allows for broader
application across various loads.
Meeting the rigorous AEC-Q100 automotive-grade 1 standard, the
HL8545/8545G performs reliably in extreme temperatures from -40°C
to 125°C, with an operating junction temperature ranging from -40°C
to 150°C. The devices feature 3.3V and 5V compatible control logic,
making them adaptable to various automotive control systems. Robust
protection mechanisms include overload and short-circuit
protection, inductive load negative voltage clamp, under-voltage
lockout protection, thermal shutdown/swing protection, and
pin-configurable latch-off or auto-retry mode on over-temperature
events. They are available in a 16-pin DFN package, ensuring
compatibility with a variety of systems.
"The HL8545/8545G series exemplifies our commitment to
innovation and reliability in automotive electronics," stated
Mason Choi, VP/GM. "With their
advanced diagnostics, efficient operation, and robust protection
features, these power switches set a new standard for intelligent
load control in the automotive industry."
About HMI
HMI specializes in cutting-edge
advanced analog and mixed-signal integrated circuits, providing
ultra-fast battery charging, robust safety protection solutions,
and high-efficiency power DC-DC converters across diverse sectors
such as mobile, IoT, automotive, and industrial applications.
Explore further at www.hmisemi.com.
For more information, please contact:
Jae Park
Email: jpark@hmisemi.com
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SOURCE HMI