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new products
Characteristics shared by the three series are their dust
proof construction and stable output characteristics in
harsh environments. A rotational angle of 360 degrees
is provided and wide operating temperature ranges of up
to -40 to +120°C are tolerated in the case of the PHS11.
All of the TT Electronics PHS rotational sensors
can be hand or wave soldered and feature long life
characteristics of greater than a million cycles, or at
least 300,000 in the case of the PHS04 with a 500,000
cycles option available. They are small sized, the
PHS11 boasts an ultra thin height of 2.2mm and the
PHS04 measures just 4 x 5mm in length and width.
Exhibiting a commitment to and an ability to respond
to customers’ specific needs and applications, TT
Electronics is able to customise the sensors’ shaft hole
diameters for the PH07 and PHS11 ranges. Rotor
types can also be customised from D to H type, as well
as electrical output angles and linearity tolerances for
super-accurate sensing applications.
Applications for the PHS series are to be found across
industrial, medical and transportation markets, and
specific ones include robot joint angle control, game
controllers, motor drive units, 3D printers, intelligent
surveillance camera positioning, rotary angle sensors,
electric motor-driven bicycles, HAVC sensors, patient
monitoring systems, medical diagnostic devices, dental
chair positions, car audio and shift-by-wire gearshift
systems.
TT Electronics’ PHS04 and PHS07 are supplied in trays
or boxes and the ultra slim PHS11 sensors are supplied
in tape and reel form. For further information on the
PHS family and product selector visit: www.ttelectronics.
com/sensors/rotary-position-sensors-potentiometric/
hollow-shaft-potentiometers.
Intersil Introduces Smallest Footprint and
Highest Efficiency PMIC for Application
Processors, GPUs, FPGAs and System Power
Intersil, a subsidiary of Renesas Electronics Corporation
(TSE: 6723), today introduced a highly integrated
programmable power management IC (PMIC) that
delivers 91% efficiency at 1.1V output voltage for
application processors, GPUs, FPGAs and high-
performance system power. The new PMIC’s low
RDS(on) MOSFETs and programmable PWM frequency
allows designers to use fewer low-profile external
components, enabling a 50mm2 power-supply that is
40% smaller than competing solutions. The ISL91211
triple/quad output PMIC is ideal for smartphones, tablet
computers, solid-state drives, networking and wireless
Internet of Things (IoT) devices powered by single-
cell Lithium-ion (Li-on) batteries, or 2.5V – 5.5V power
supplies.
The ISL91211 leverages Intersil’s latest R5™
modulation technology to provide the industry’s fastest
single-cycle transient response and highest switching
frequency (4MHz) during load transients. Quiescent
current is only 62μA while the ISL91211 is regulating the
output voltage. The PMIC’s superior light load efficiency,
regulation accuracy and fast dynamic response prolong
battery life.
The ISL91211 PMIC includes highly efficient
synchronous buck converters capable of multiphase
and single-phase operation while delivering up to 5A per
phase of continuous output current. The PMIC’s four
integrated buck controllers dynamically reconfigure their
power stages to address a wide range of applications
with high efficiency and high output power. Precise
current sensing allows the ISL91211 to automatically
and smoothly add or drop phases to optimize power
efficiency, and provide overcurrent protection without
requiring DCR or resistor sensing circuits at the inductor.
“The latest generation of application processors
requires a new PMIC modulation architecture that
can dramatically shrink solution size and increase
efficiency,” said Andrew Cowell, senior vice president
of Mobile Power Products at Intersil. “The ISL91211
employs Intersil’s new R5 modulator to deliver blazingly
fast transient performance and everything designers
78 l New-Tech Magazine Europe