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new products
ceramic capacitors and no inductors) make the LTC3246
ideal for noise-sensitive space constrained automotive
applications such as ECU/CAN transceiver supplies, as
well as industrial housekeeping supplies and efficient
low power 12V to 5V conversion.
The LTC3246’s switched capacitor architecture with
inherent soft switching provides lower radiated noise and
EMI compared with conventional switching regulators.
Timing control for the reset timeout and the windowed
watchdog timeout can be adjusted using external
capacitors on the RT and WT pins, or fixed internally
via pin strapping. The accurate threshold of the reset
input can be used for additional supply monitoring, or
can be configured as a pushbutton reset. Other features
include stability with ceramic capacitors, foldback
current limiting to prevent excessive current flow during
start-up, plus short-circuit and thermal protection
Surface-Mount Intelligent Low-Power
Modules from STMicroelectronics Save Space in
Energy-Efficient Motor Drives
STMicroelectronics has added five space-saving surface-
mount intelligent power modules (IPM) to its SLLIMM™-
nano family, giving the choice of IGBT or MOSFET outputs
for in-motor or other space-constrained drives all the way
from very low power ratings up to 100W.
The new modules deliver high conduction and switching
efficiency, especially in hard-switching circuits at
frequencies up to 20kHz. The integrated gate-driver circuitry
is engineered to minimize electromagnetic emissions (EMI)
by managing switching voltage and current slopes (dV/dt,
di/dt). The thermally efficient package enhances reliability
and allows heatsink-free design, while 2.7mm creepage and
2.0mm clearance ensure safety isolation within the compact
dual-inline SMD footprint. The module pin configuration is
optimized to simplify circuit-board layout.
A wide range of domestic and industrial appliances, such
as small fans, roller shutters, refrigerator compressors,
dishwashers, draining and recirculation pumps, and general
low-power motor drives, can benefit from the small size,
high energy efficiency, excellent reliability, and safe, low-
noise performance of ST’s new IPMs.
Extra features integrated alongside the gate driver and 500V
MOSFET or 600V IGBT/freewheel-diode array include an
uncommitted operational amplifier and a comparator that let
designers implement advanced current sensing and over-
current protection with minimal external components. Smart
shutdown with high-speed fault detection, interlocking,
and under-voltage lockout are all built-in, and integrated
bootstrap diodes simplify powering the module’s gate-
control circuitry.
The new SLLIMM -nano power modules, comprising the
STIPNS1M50T-H, STIPNS2M50T-H, STIPNS2M50-H,
STGIPNS3H60T-H, and STGIPNS3HD60-H, provide a
choice of 1A, 2A, or 3A current rating (at 25°C). All are
packaged as NSDIP-26L fully-molded dual-inline surface-
mount devices. Engineering samples are available now and
volume production will commence in Q4 2017. Pricing starts
at $5 for 1000 pieces of the STIPNS1M50T-H.
Analog Devices Lays Foundation for 4G to
5G Migration with Expanded RadioVerse™
Wireless Technology and Design Ecosystem
(ADI) today announced the latest update to its award-winning
RadioVerse™ technology and design ecosystem, which
simplifies and accelerates radio development for wireless
carriers and telecommunications equipment manufacturers
as they transition their cellular base stations from 4G to 5G
networks. ADI’s expanded RadioVerse portfolio features
new radio transceiver hardware, software tools, and a robust
design environment that enables the smaller, lower power
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