MILPITAS, Calif., Sept. 29, 2014 /PRNewswire/ -- Intersil
Corporation (NASDAQ: ISIL), a leading provider of innovative power
management and precision analog solutions today announced the
ZL8801 dual-phase, DC/DC digital PWM controller. The ZL8801 expands
Intersil's fourth generation controller family by enabling a simple
dual phase solution for higher current applications ranging from
40A to 100A. With the ability to current share across multiple
devices, its range can be extended up to 300 amps for high-end
FPGAs and ASICs employed in densely populated power supplies in
servers, storage equipment and basestations. Used in conjunction
with Intersil's easy-to-use PowerNavigator™ graphical user
interface (GUI), the ZL8801 simplifies system power conversion and
speeds the design process.
![Intersil's ZL8801 allows high current digital supplies to be configured as dual phase or in parallel to supply over 300A of load current to high-end FPGAs and ASICs. Intersil's ZL8801 allows high current digital supplies to be configured as dual phase or in parallel to supply over 300A of load current to high-end FPGAs and ASICs.](http://photos.prnewswire.com/prnvar/20140926/148641)
The ZL8801 utilizes Intersil's latest advances in digital power
technology, leveraging the patented ChargeMode™ control loop
architecture to deliver transient response performance that's far
superior to today's analog controllers. Inherently stable, the
ZL8801's fully digital control loop corrects errors cycle-by-cycle,
eliminating the need for compensation. Its high control loop
bandwidth reduces the amount of output capacitance needed to meet
the latest transient requirements of high-end FPGAs and ASICs,
resulting in a smaller board size and lower bill of materials cost.
The ZL8801 can be paired with the ISL99140 40A DrMOS (Integrated
Driver and MOSFET) output stage to create a complete voltage
regulator solution.
The ZL8801 supports Intersil's proprietary DDC (digital DC) bus
for inter-controller communication. This bus allows for
system-based sequencing, fault management and current sharing in
conjunction with other Intersil digital power ICs, all on a single
wire. Configuration is easily managed with the graphical
PowerNavigator tool to provide drag and drop sequencing control,
which is autonomously managed in system by the ZL8801. Even current
sharing is enabled by the DDC bus, allowing up to four ZL8801's to
be paralleled providing for high current power system designs.
Modern systems have increased complexity and reliability demands
requiring designers to control and monitor every power rail to
maximize efficiency and reduce downtime. This has historically been
achieved through the use of numerous discrete monitors, sequencers
and system controllers to provide added functionality around the
POL converters. The ZL8801 integrates all of these functions, so a
designer can monitor and control every aspect of the power supply
through a PMBus™ interface. Full telemetric data can be read using
the PowerNavigator GUI, including input voltage, input current,
output voltage, output current, temperature and all fault
conditions.
"A fully digital control loop improves system performance and
provides the intelligence customers need to monitor power supply
health and optimize their systems dynamically, such as changing
output voltage on the fly," said Mark
Downing, senior vice president of infrastructure and
industrial power products at Intersil. "Intersil is on the
forefront of digital power design, making it easy to use through
advanced control technology and intuitive GUIs."
Key Features and Specifications
- Dual phase output for high current applications
- Unique compensation-free modulation technique allows designs to
meet transient specifications with minimum output capacitance,
saving cost and board space
- 1% output voltage accuracy over line, load and temperature
- Single input supply operation simplifies design, eliminates the
need for multiple supply rails to the controller
- Integrated 5V, 80mA LDO for external driver supply voltage
eliminates the need for additional supply rail for gate drive,
saving board space
- 200kHz to 1.33MHz switching frequency range allows for a
variety of power stage and output filter options
- SnapShot fault logging capability captures telemetry and fault
information in non-volatile memory in the case of a fault, enabling
diagnostic and system debug
- Adjustable cycle-by-cycle inductor peak current protection
enables quick reaction to overcurrent faults, prevents saturation
and damage to the load
- Supports a wide range of output voltages (0.54V to 5.5V)
operating from input voltages from 4.5V up to 14V
PowerNavigator GUI Simplifies POL
Designs
Intersil's PowerNavigator™ GUI software simplifies
the ZL8801's setup and configuration, including all device
parameters and full telemetry. The tool makes it easy to change
features and functions of a digital power supply design without
writing a single line of code. To download the PowerNavigator GUI
and watch a tutorial video, please visit:
www.intersil.com/powernavigator.
Pricing and Availability
The ZL8801 is available in a
7mm x 7mm, 44-pin QFN package and is priced at $4.95 USD in 1k quantities. Two demo boards are
also available: the ZL8801-2PH-DEMO1Z 80A dual phase demo board is
priced at $120 USD, and the
ZL8801-4PH-DEMO1Z 160A 4-phase demo board is priced at $160 USD.
For more information on the ZL8801 dual-phase, DC/DC digital PWM
controller and two demo boards, please visit:
www.intersil.com/products/ZL8801.
About Intersil
Intersil Corporation is a leading
provider of innovative power management and precision analog
solutions. The company's products form the building blocks of
increasingly intelligent, mobile and power hungry electronics,
enabling advances in power management to improve efficiency and
extend battery life. With a deep portfolio of intellectual property
and a rich history of design and process innovation, Intersil is
the trusted partner to leading companies in some of the world's
largest markets, including industrial and infrastructure, mobile
computing, automotive and aerospace. For more information about
Intersil, visit our website at www.intersil.com.
Intersil, PowerNavigator, ChargeMode and the Intersil logo
are trademarks or registered trademarks of Intersil Corporation.
All other brands, product names and marks are or may be trademarks
or registered trademarks used to identify products or services of
their respective owners.
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SOURCE Intersil Corporation