Datasheet > SL6208B

SL6208B

更新时间： 2024-01-18 16:33:15

品牌	Logo	应用领域
英特矽尔 - INTERSIL		驱动器
页数	文件大小	规格书
13页	1831K
描述
High Voltage Synchronous Rectified Buck MOSFET Drivers

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SL6208B 数据手册

High Voltage Synchronous Rectified Buck MOSFET

Drivers

ISL6208, ISL6208B

Features

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.

• 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

ISL6208 and ISL6208B have the same function but different

packages. The descriptions in this datasheet are based on

ISL6208 and also apply to ISL6208B.

• Low Bias Supply Current (5V, 80µA)

• Diode Emulation for Enhanced Light Load Efficiency and

Pre-Biased Start-Up Applications

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.

• 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:

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.

- 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

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 shoot-

through protection is integrated to prevent both MOSFETs from

conducting simultaneously.

• 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

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.

Related Literature

• Technical Brief TB363 “Guidelines for Handling and

Processing Moisture Sensitive Surface Mount Devices

(SMDs)”

• Technical Brief TB389 “PCB Land Pattern Design and

Surface Mount Guidelines for MLFP Packages”

• Technical Brief TB447 “Guidelines for Preventing

Boot-to-Phase Stress on Half-Bridge MOSFET Driver ICs”

January 31, 2012

FN9115.6

CAUTION: These devices are sensitive to electrostatic discharge; follow proper IC Handling Procedures.

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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与SL6208B相关器件

型号	品牌	获取价格	描述	数据表
SL621C104KAB	KYOCERA AVX	获取价格	Ceramic Capacitor, Multilayer, Ceramic, 100V, 10% +Tol, 10% -Tol, X7R, -/+15ppm/Cel TC, 0.
SL621C222MAB	KYOCERA AVX	获取价格	Ceramic Capacitor, Multilayer, Ceramic, 100V, 20% +Tol, 20% -Tol, X7R, -/+15ppm/Cel TC, 0.
SL621C224MAB	KYOCERA AVX	获取价格	Ceramic Capacitor, Multilayer, Ceramic, 100V, 20% +Tol, 20% -Tol, X7R, -/+15ppm/Cel TC, 0.
SL621C334KAB	KYOCERA AVX	获取价格	Ceramic Capacitor, Multilayer, Ceramic, 100V, 10% +Tol, 10% -Tol, X7R, -/+15ppm/Cel TC, 0.
SL621C682JAB	KYOCERA AVX	获取价格	Ceramic Capacitor, Multilayer, Ceramic, 100V, 5% +Tol, 5% -Tol, X7R, -/+15ppm/Cel TC, 0.00
SL621C683KABTR1	KYOCERA AVX	获取价格	Ceramic Capacitor, Multilayer, Ceramic, 100V, 10% +Tol, 10% -Tol, X7R, -/+15ppm/Cel TC, 0.
SL621CBCM	MICROSEMI	获取价格	Analog Circuit, MBCY8
SL621CCM	MICROSEMI	获取价格	Analog Circuit, MBCY8
SL6227	INTERSIL	获取价格	Dual Mobile-Friendly PWM Controller with DDR Option
SL622C223JABTR1	KYOCERA AVX	获取价格	Ceramic Capacitor, Multilayer, Ceramic, 200V, 5% +Tol, 5% -Tol, X7R, -/+15ppm/Cel TC, 0.02

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