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ISL6210

Dual Synchronous Rectified MOSFET Drivers

Renesas Electronics 

ISL6210

Dual Synchronous Rectified MOSFET Drivers

The ISL6210 integrates two ISL6208A drivers and is

optimized to drive two independent power channels in a

synchronous-rectified buck converter topology. These

drivers combined with an Intersil ISL62xx multiphase PWM

controller forms a complete single-stage core-voltage

regulator solution with high efficiency performance at high

switching frequency for advanced microprocessors.

The IC is biased by a single low voltage supply (5V),

minimizing driver switching losses in high MOSFET gate

capacitance and high switching frequency applications.

Each driver is capable of driving a 3nF load with less than

10ns rise/fall time. Bootstrapping of the upper gate driver is

implemented via an internal low forward drop diode,

reducing implementation cost, complexity, and allowing the

use of higher performance, cost effective N-Channel

MOSFETs. Adaptive shoot-through protection is integrated

to prevent both MOSFETs from conducting simultaneously.

The ISL6210 features 4A typical sink current for the lower

gate driver, enhancing the lower MOSFET gate hold-down

capability during PHASE node rising edge, preventing power

loss caused by the self turn-on of the lower MOSFET due to

the high dV/dt of the switching node.

The ISL6210 also features an input that recognizes a high

impedance state, working together with Intersil multiphase

PWM controllers to prevent negative transients on the

controlled output voltage when operation is suspended. This

feature eliminates the need for the Schottky diode that may

be utilized in a power system to protect the load from

negative output voltage damage.

Ordering Information

TEMP.

PART NUMBER PART RANGE

(Note)

MARKING (°C)

PACKAGE PKG.

(Pb-Free) DWG. #

ISL6210CRZ 62 10CRZ -10 to +100 16 Ld 4x4 QFN L16.4x4

ISL6210CRZ-T* 62 10CRZ -10 to +100 16 Ld 4x4 QFN L16.4x4

*Please refer to TB347 for details on reel specifications.

NOTE: These Intersil Pb-free plastic packaged products employ

special Pb-free material sets, molding compounds/die attach

materials, and 100% matte tin plate plus anneal (e3 termination

finish, which is RoHS compliant and compatible with both SnPb and

Pb-free soldering operations). Intersil Pb-free products are MSL

classified at Pb-free peak reflow temperatures that meet or exceed

the Pb-free requirements of IPC/JEDEC J STD-020.

DATASHEET

FN6392

Rev 1.00

December 9, 2008

Features

• 5V Quad N-Channel MOSFET Drives for Two

Synchronous Rectified Bridges

• Adaptive Shoot-Through Protection

- Active Gate Threshold Monitoring

- Programmable Dead-Time

• 0.4 ON-Resistance and 4A Sink Current Capability

• Supports High Switching Frequency

- Fast Output Rise and Fall

- Ultra Low Three-State Hold-Off Time (20ns)

• Low VF Internal Bootstrap Diode

• Low Bias Supply Current

• Power-On Reset

• QFN Package

- Compliant to JEDEC PUB95 MO-220 QFN-Quad Flat

No Leads-Product Outline

- Near Chip-Scale Package Footprint; Improves PCB

Efficiency and Thinner in Profile

• Pb-Free Available (RoHS Compliant)

Applications

• Core Voltage Supplies for Intel® and AMD®

Microprocessors

• High Frequency Low Profile High Efficiency DC/DC

Converters

• High Current Low Voltage DC/DC Converters

• Synchronous Rectification for Isolated Power Supplies

Related Literature

• Technical Brief TB363 “Guidelines for Handling and

Processing Moisture Sensitive Surface Mount Devices

(SMDs)”

• Technical Brief 400 and Technical Brief 417 for Power

Train Design, Layout Guidelines, and Feedback

Compensation Design

• Technical Brief 447 “Guidelines for Preventing Boot-to-Phase

Stress on Half-Bridge MOSFET Driver ICs”

FN6392 Rev 1.00

December 9, 2008

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