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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