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ISL1801IVZ 数据表(PDF) 1 Page - Intersil Corporation

部件名 ISL1801IVZ
功能描述  sPMIC for Micro Converter Bias and Drivers
Download  30 Pages
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制造商  INTERSIL [Intersil Corporation]
网页  http://www.intersil.com/cda/home
标志 INTERSIL - Intersil Corporation

ISL1801IVZ 数据表(HTML) 1 Page - Intersil Corporation

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sPMIC for Micro Converter Bias and Drivers
ISL1801
The ISL1801 is a power management IC (PMIC) optimized for
solar array micro converters and other systems operating from
a high voltage DC supply. The ISL1801 can be used in buck,
boost or buck-boost microconverter topologies in order to
maximize the energy harvest from a solar array. In addition to
the power stage and main controller, the ISL1801 includes the
bias regulators, gate drivers, current sense amplifier and
comparators needed for micro converters.
The ISL1801 integrates two switching regulators that can be
used to generate the driver and the micro-controller (MCU)
power supplies. In addition, it has a low offset, low drift
amplifier for current sensing, two comparators for overvoltage
and overcurrent protection plus a watchdog timer to reset the
MCU if necessary. This single IC solution offers high integration
and dramatically reduces the total number of components in
the microconverter system improving the system reliability and
reducing cost.
The first regulator takes input voltages ranging from 9V to 90V
from the solar panel and outputs a regulated supply for drivers
and the secondary regulator. The secondary regulator converts
the output of the first regulator to a programmable
micro-controller supply, typically 3.3V. A high voltage start-up
LDO provides the necessary bias voltage until the switching
regulator is operating.
The ISL1801 integrates two high-speed MOSFET drivers for
buck, flyback or boost converters configured as shown in the
application schematics. The Drive3 also has the integrated
peak current limiting capabilities.
The ISL1801 includes comprehensive start-up, shutdown and
fault logic to ensure reliable operation of micro converters in
solar applications.
Features
• 90V input buck switching regulator
- 120mA (minimum) output with OCP, OVP, OTP
- Integrated upper and lower MOSFETs
• 90V on-chip start-up 6.7V LDO
• Low voltage buck switching regulator
- 200mA (minimum) output with OCP, OVP
- Integrated upper and lower MOSFETs
-PGOOD output
• Low voltage bias LDO
- Input voltage range from 6V to 14V
- Regulated 5V output up to 10mA
• Dual high-speed gate driver
-14V voltage rating
- 2A peak sourcing and 5A peak sinking current
- Peak current limit for DRIVE3
• Dedicated amplifier for accurate current sense
• Two comparators for general purpose protection
• Integrated watchdog timer
Applications
•Solar power optimizer
• Solar power micro-inverter
• Solar charge controller
• Telecom power supply
FIGURE 1. TYPICAL APPLICATION
PV MODULE
ISL1801
PROCESSOR AND/OR
COMMUNICATIONS
VOUT-
VOUT+
VIN+
3.3V
SENSE
CONTROL
July 24, 2014
FN8259.1
CAUTION: These devices are sensitive to electrostatic discharge; follow proper IC Handling Procedures.
1-888-INTERSIL or 1-888-468-3774
| Copyright Intersil Americas LLC 2012, 2014. All Rights Reserved
Intersil (and design) is a trademark owned by Intersil Corporation or one of its subsidiaries.
All other trademarks mentioned are the property of their respective owners.


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