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Intersil Electronic Components Datasheet

ISL6610 Datasheet

Dual Synchronous Rectified MOSFET Drivers

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®
Data Sheet
ISL6610, ISL6610A
November 22, 2006
FN6395.0
Dual Synchronous Rectified MOSFET
Drivers
The ISL6610, ISL6610A integrates two ISL6609, ISL6609A
drivers with enable function removed and is optimized to
drive two independent power channels in a synchronous-
rectified buck converter topology. These drivers, combined
with an Intersil ISL63xx or ISL65xx multiphase PWM
controller, form a complete high efficiency voltage regulator
at high switching frequency.
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 ISL6610, ISL6610A 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 ISL6610, ISL6610A 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.
In addition, the ISL6610As bootstrap function is designed to
prevent the BOOT capacitor from overcharging, should
excessively large negative swings occur at the transitions of
the PHASE node.
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
Features
• 5V Quad N-Channel MOSFET Drives for Two
Synchronous Rectified Bridges
• Pin-to-pin Compatible with ISL6614 (12V Drive)
• Adaptive Shoot-Through Protection
• 0.4Ω On-Resistance and 4A Sink Current Capability
• Supports High Switching Frequency
- Fast Output Rise and Fall
- Low Tri-State Hold-Off Time
• BOOT Capacitor Overcharge Prevention (ISL6610A)
• Low VF Internal Bootstrap Diode
• 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
Utilization, Thinner Profile
• Pb-Free Plus Anneal Available (RoHS Compliant)
Related Literature
• Technical Brief TB389 “PCB Land Pattern Design and
Surface Mount Guidelines for QFN (MLFP) Packages”
• Technical Brief TB363 “Guidelines for Handling and
Processing Moisture Sensitive Surface Mount Devices
(SMDs)”
Ordering Information
PART
NUMBER
(Note)
ISL6610CBZ
PART
MARKING
6610CBZ
TEMP.
RANGE
(°C)
PACKAGE
(Pb-Free)
0 to +70 14 Ld SOIC
PKG.
DWG. #
M14.15
ISL6610CRZ 66 10CRZ 0 to +70 16 Ld 4x4 QFN L16.4x4
ISL6610IBZ 6610IBZ -40 to +85 14 Ld SOIC M14.15
ISL6610IRZ 66 10IRZ -40 to +85 16 Ld 4x4 QFN L16.4x4
ISL6610ACBZ 6610ACBZ 0 to +70 14 Ld SOIC M14.15
ISL6610ACRZ 66 10ACRZ 0 to +70 16 Ld 4x4 QFN L16.4x4
ISL6610AIBZ 6610AIBZ -40 to +85 14 Ld SOIC M14.15
ISL6610AIRZ 66 10AIRZ -40 to +85 16 Ld 4x4 QFN L16.4x4
Add “-T” suffix for tape and reel.
NOTE: Intersil Pb-free plus anneal products employ special Pb-free
material sets; molding compounds/die attach materials and 100%
matte tin plate termination finish, which are 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.
1
CAUTION: These devices are sensitive to electrostatic discharge; follow proper IC Handling Procedures.
1-888-INTERSIL or 1-888-468-3774 | Intersil (and design) is a registered trademark of Intersil Americas Inc.
Copyright Intersil Americas Inc. 2006. All Rights Reserved
AMD® is a registered trademark of Advanced Micro Devices, Inc. All other trademarks mentioned are the property of their respective owners.


Intersil Electronic Components Datasheet

ISL6610 Datasheet

Dual Synchronous Rectified MOSFET Drivers

No Preview Available !

ISL6610, ISL6610A
Pinouts
ISL6610, ISL6610A
(14 LD SOIC)
TOP VIEW
PWM1 1
PWM2 2
GND 3
LGATE1 4
PVCC 5
PGND 6
LGATE2 7
14 VCC
13 PHASE1
12 UGATE1
11 BOOT1
10 BOOT2
9 UGATE2
8 PHASE2
ISL6610, ISL6610A
(16 LD QFN)
TOP VIEW
16 15 14 13
GND 1
LGATE1 2
PVCC 3
PGND 4
17
GND
12 UGATE1
11 BOOT1
10 BOOT2
9 UGATE2
5678
Block Diagram
ISL6610, ISL6610A
VCC
PVCC
RBOOT
BOOT1
UGATE1
4.9K
PWM1
4.6K
VCC
4.9K
CONTROL
LOGIC
SHOOT-
THROUGH
PROTECTION
PVCC
PVCC
PGND
RBOOT
PWM2
GND
4.6K
SHOOT-
THROUGH
PROTECTION
PHASE1
CHANNEL 1
LGATE1
PGND
BOOT2
UGATE2
PHASE2
CHANNEL 2
PVCC
LGATE2
PGND
PAD FOR ISL6610CR/10ACR, THE PAD ON THE BOTTOM SIDE OF
THE QFN PACKAGE MUST BE SOLDERED TO THE CIRCUIT’S GROUND.
INTEGRATED 3Ω RESISTOR (RBOOT) AVAILABLE ONLY IN ISL6610A
2 FN6395.0
November 22, 2006


Part Number ISL6610
Description Dual Synchronous Rectified MOSFET Drivers
Maker Intersil Corporation
Total Page 11 Pages
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