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ISL6208IBZ Datasheet (PDF) - Intersil Corporation

ISL6208IBZ Datasheet PDF - Intersil Corporation
Part # ISL6208IBZ
Download  ISL6208IBZ Download

File Size   1831.46 Kbytes
Page   13 Pages
Manufacturer  INTERSIL [Intersil Corporation]
Direct Link  http://www.intersil.com/cda/home
Logo INTERSIL - Intersil Corporation
Description High Voltage Synchronous Rectified Buck MOSFET Drivers

ISL6208IBZ Datasheet (PDF)

Go To PDF Page Download Datasheet
ISL6208IBZ Datasheet PDF - Intersil Corporation

Part # ISL6208IBZ
Download  ISL6208IBZ Click to download

File Size   1831.46 Kbytes
Page   13 Pages
Manufacturer  INTERSIL [Intersil Corporation]
Direct Link  http://www.intersil.com/cda/home
Logo INTERSIL - Intersil Corporation
Description High Voltage Synchronous Rectified Buck MOSFET Drivers

ISL6208IBZ Datasheet (HTML) - Intersil Corporation

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ISL6208IBZ Product details

The ISL6208 and ISL6208B are high frequency, dual MOSFET
drivers, optimized to drive two N-Channel power MOSFETs in a
synchronous-rectified buck converter topology. They are
especially suited for mobile computing applications that
require high efficiency and excellent thermal performance.
These drivers, combined with an Intersil multiphase Buck
PWM controller, form a complete single-stage core-voltage
regulator solution for advanced mobile microprocessors.
ISL6208 and ISL6208B have the same function but different
packages. The descriptions in this datasheet are based on
ISL6208 and also apply to ISL6208B.
The ISL6208 features 4A typical sinking current for the lower
gate driver. This current is capable of holding the lower
MOSFET gate off during the rising edge of the Phase node. This
prevents shoot-through power loss caused by the high dv/dt of
phase voltages. The operating voltage matches the 30V
breakdown voltage of the MOSFETs commonly used in mobile
computer power supplies.
The ISL6208 also features a three-state PWM input that,
working together with Intersil’s multiphase PWM controllers,
will prevent negative voltage output during CPU shutdown. This
feature eliminates a protective Schottky diode usually seen in
a microprocessor power systems.
MOSFET gates can be efficiently switched up to 2MHz using
the ISL6208. Each driver is capable of driving a 3000pF load
with propagation delays of 8ns and transition times under
10ns. Bootstrapping is implemented with an internal Schottky
diode. This reduces system cost and complexity, while allowing
the use of higher performance MOSFETs. Adaptive shootthrough protection is integrated to prevent both MOSFETs from
conducting simultaneously.
A diode emulation feature is integrated in the ISL6208 to
enhance converter efficiency at light load conditions. This
feature also allows for monotonic start-up into pre-biased
outputs. When diode emulation is enabled, the driver will allow
discontinuous conduction mode by detecting when the
inductor current reaches zero and subsequently turning off the
low side MOSFET gate.

Features
• Dual MOSFET Drives for Synchronous Rectified Bridge
• Adaptive Shoot-Through Protection
• 0.5Ω On-Resistance and 4A Sink Current Capability
• Supports High Switching Frequency up to 2MHz
- Fast Output Rise And Fall Time
- Low Propagation Delay
• Three-State PWM Input for Power Stage Shutdown
• Internal Bootstrap Schottky Diode
• Low Bias Supply Current (5V, 80µA)
• Diode Emulation for Enhanced Light Load Efficiency and
Pre-Biased Start-Up Applications
• VCC POR (Power-On-Reset) Feature Integrated
• Low Three-State Shutdown Holdoff Time (Typical 160ns)
• Pin-to-Pin Compatible with ISL6207
• QFN and DFN Package:
- Compliant to JEDEC PUB95 MO-220
QFN - Quad Flat No Leads - Package Outline
DFN - Dual Flat No Leads - Package Outline
- Near Chip Scale Package Footprint, which Improves PCB
Efficiency and has a Thinner Profile
• Pb-Free (RoHS Compliant)

Applications
• Core Voltage Supplies for Intel® and AMD® Mobile
Microprocessors
• High Frequency Low Profile DC/DC Converters
• High Current Low Output Voltage DC/DC Converters
• High Input Voltage DC/DC Converters




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About Intersil Corporation


Intersil Corporation was an American semiconductor company that specialized in the design and manufacture of high-performance analog and mixed-signal integrated circuits.
The company was founded in 1967 and was known for its expertise in power management, data conversion, and radio frequency (RF) technologies.
Intersil's products were used in a wide range of applications such as consumer electronics, industrial, telecommunications, and aerospace and defense.
In 2016, Intersil was acquired by Renesas Electronics Corporation, a Japanese semiconductor company.
The Intersil brand and technology continue to be developed and sold as part of Renesas' portfolio of products.

*This information is for general informational purposes only, we will not be liable for any loss or damage caused by the above information.




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