New-Tech Europe Magazine | Feb 2017

67 / 84

new products
will also be available next month for precision sensor-
signal conditioning in equipment ranging from simple
wiper modules or climate controls to autonomous-driving
systems.
The TSZ182 is in production now in the Mini-SO8 or
DFN8 2mm x 2mm package, priced from $0.97 for orders
of 1000 units.
For further information please visit
Ricoh launches 4A PWM step-down DCDC
converter for industrial, automotive and
consumer applications
Ricoh Europe (Netherlands) B.V. Semiconductor Support
Centre has launched the new 4A synchronous buck
DC/DC converter RP510 with an input voltage range
up to 5.5V and an optional fixed or adjustable output
voltage range from 0.8V to 3.3V. The DC/DC converter
supports Power Supplies or Point of Load converters for
Microprocessors, FPGAs or DSPs.
Point of Load power supplies solve the challenge of high
peak current demands and low noise margins, required
by high-performance processors, by placing individual
power supply regulators close to their point of use.
The device features a range of protection circuits
contributing to the safe operation of the application. A
Power-Good (PG) output provides a fault signal to the
system when the device is not ready for regular operation
or when any of the protection circuits or states are active.
An Under Voltage Lock Out (UVLO) function disables the
chip below a minimum input voltage level.
The Thermal Shutdown function protects the device
during an overload condition and disables it when
exceeding a temperature threshold.
The Output Over Voltage Detection (OVD) and Under
Voltage Detection (UVD) indicate a fault signal when the
output voltage is 20% above or below the regular setting
value.
With the Over Current protection option, the designer can
either select from a latched mode or fold-back version,
depending on the application requirements. Latched over
current protection shuts down the chip after detecting an
excessive high load for a specified time and requires a
reboot of the power supply to resume to normal operation
after removing the excessive load. The fold-back
protection circuit is triggered in a similar way but reduces
the switching frequency in order to lower the excessive
load current, the circuit will be released automatically
after removing the excessive load.
The adjustable Soft Start Time provides a smooth output
voltage ramp up, by using an external capacitor. The
oscillator frequency is internally fixed at 2.3MHz and
the RP510 requires a small inductor of 1mH. RP510 is
available in a compact 3 x 3mm DFN3030-12 package,
convenient to be used on high density boards.
Intersil Battery Charger Extends Backup
Battery Life of Automotive eCall Systems
Intersil Corporation (NASDAQ: ISIL), a leading provider
of innovative power management and precision analog
solutions today announced the ISL78693, a 3.6V single-
cell battery charger that extends the life of Lithium Iron
Phosphate (LiFePO4) batteries used in automotive
emergency call (eCall) systems. The ISL78693 battery
charger offers up to 4x lower leakage current (3uA) than
competitive chargers, allowing the eCall backup battery
to remain charged for a longer period of time. See a
demonstration of the ISL78693 in Intersil’s booth #E30-
11 at the Automotive World conference, January 18-20 in
New-Tech Magazine Europe l 67