intersil ISL6612B, ISL6613B intersil

®

www.BDTIC.com/Intersil

ISL6612B, ISL6613B

Data Sheet July 27, 2006

Advanced Synchronous Rectified Buck
MOSFET Drivers with Pre-POR OVP

The ISL6612B and ISL6613B are high frequency MOSFET
drivers specifically designed to drive upper and lower power
N-Channel MOSFETs in a synchronous rectified buck
converter topology. These drivers combined with HIP63xx or
ISL65xx Multi-Phase Buck PWM controllers and N-Channel
MOSFET s form complete core-voltage regulator solutions for
advanced microprocessors.

The ISL6612B drives the upper gate to above rising VCC
POR (7V), while the lower gate can be independently driven
over a range from 5V to 12V. The ISL6613B drives both
upper and lower gates over a range of 5V to 12V. This drive­voltage provides the flexibility necessary to optimize
applications involving trade-offs between gate charge and
conduction losses. These drivers are optimized for POL
DC/DC Converters for IBA Systems.

An advanced adaptive zero shoot-through protection is
integrated to prevent both the upper and lower MOSFETs
from conducting simultaneously and to minimize the dead
time. These products add an overvoltage protection feature
operational before VCC exceeds its turn-on threshold, at
which the PHASE node is connected to the gate of the low
side MOSFET (LGATE). The output voltage of the converter
is then limited by the threshold of the low side MOSFET,
which provides some protection to the microprocessor if the
upper MOSFET(s) is shorted during initial start-up.

These drivers also feature a three-state PWM input which,
working together with Intersil’s multi-phase PWM controllers,
prevents a negative transient on the output voltage when the
output is shut down. This feature eliminates the Schottky
diode that is used in some systems for protecting the load
from reversed output voltage events.

FN9205.3

Features

• Pin-to-pin Compatible with HIP6601 SOIC family

• Dual MOSFET Drives for Synchronous Rectified Bridge

• Low VCC Rising Threshold (7V) for IBA Applications.

• Advanced Adaptive Zero Shoot-Through Protection

- Body Diode Detection

- Auto-zero of r

• Adjustable Gate Voltage (5V to 12V) for Optimal Efficiency

• 36V Internal Bootstrap Schottky Diode

• Bootstrap Capacitor Overcharging Prevention

• Supports High Switching Frequency (up to 2MHz)

- 3A Sinking Current Capability

- Fast Rise/Fall Times and Low Propagation Delays

• Three-State PWM Input for Output Stage Shutdown

• Three-State PWM Input Hysteresis for Applications With
Power Sequencing Requirement

• Pre-POR Overvoltage Protection

• VCC Undervoltage Protection

• Expandable Bottom Copper Pad for Enhanced Heat
Sinking

• Dual Flat No-Lead (DFN) Package

- Near Chip-Scale Package Footprint; Improves PCB

Efficiency and Thinner in Profile

• Pb-Free Plus Anneal Available (RoHS Compliant)

Conduction Offset Effect

DS(ON)

Applications

• Optimized for POL DC/DC Converters for IBA Systems

®

• Core Regulators for Intel

• High Current DC/DC Converters

• High Frequency and High Efficiency VRM and VRD

and AMD® Microprocessors

Related Literature

• Techn ical Brief TB363 “Guidelines for Handling and
Processing Moisture Sensitive Surface Mount Devices
(SMDs)”

• Technical Brief TB417 for Power Train Design, Layout
Guidelines, and Feedback Compensation Design

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.

All other trademarks mentioned are the property of their respective owners.

Copyright Intersil Americas Inc. 2005-2006. All Rights Reserved

ISL6612B, ISL6613B

www.BDTIC.com/Intersil

Ordering Information

TEMP.

PART NUMBER PART MARKING

ISL6612BCB 6612BCB 0 to 85 8 Ld SOIC M8.15
ISL6612BCB-T 6612BCB 8 Ld SOIC Tape and Reel
ISL6612BCBZ (Note) 6612BCBZ 0 to 85 8 Ld SOIC (Pb-free) M8.15
ISL6612BCBZ-T (Note) 6612BCBZ 8 Ld SOIC Tape and Reel (Pb-free)
ISL6612BCR 12BC 0 to 85 10 Ld 3x3 DFN L10.3x3
ISL6612BCR-T 12BC 10 Ld 3x3 DFN Tape and Reel
ISL6612BCRZ (Note) 12BZ 0 to 85 10 Ld 3x3 DFN (Pb-free) L10.3x3
ISL6612BCRZ-T (Note) 12BZ 10 Ld 3x3 DFN Tape and Reel (Pb-free)
ISL6612BECB 6612BECB 0
ISL6612BECB-T 6612BECB 8 Ld EPSOIC Tape and Reel
ISL6612BECBZ (Note) 6612BECBZ 0
ISL6612BECBZ-T (Note) 6612BECBZ 8 Ld EPSOIC Tape and Reel (Pb-free)
ISL6612BEIB 6612BEIB -40°C to 85°C 8 Ld EPSOIC M8.15B
ISL6612BEIB-T 6612BEIB 8 Ld EPSOIC Tape and Reel
ISL6612BEIBZ (Note) 6612BEIBZ -40°C to 85°C 8 Ld EPSOIC (Pb-free) M8.15B
ISL6612BEIBZ-T (Note) 6612BEIBZ 8 Ld EPSOIC Tape and Reel (Pb-free)
ISL6612BIB 6612BIB -40°C to 85°C 8 Ld SOIC M8.15
ISL6612BIB-T 6612BIB 8 Ld SOIC Tape and Reel
ISL6612BIBZ (Note) 6612BIBZ -40°C to 85°C 8 Ld SOIC (Pb-free) M8.15
ISL6612BIBZ-T (Note) 6612BIBZ 8 Ld SOIC Tape and Reel (Pb-free)
ISL6612BIR 12BI -40°C to 85°C 10 Ld 3x3 DFN L10.3x3
ISL6612BIR-T 12BI 10 Ld 3x3 DFN Tape and Reel
ISL6612BIRZ (Note) 2BIZ -40°C to 85°C 10 Ld 3x3 DFN (Pb-free) L10.3x3
ISL6612BIRZ-T (Note) 2BIZ 10 Ld 3x3 DFN Tape and Reel (Pb-free)
ISL6613BCB 6613BCB 0 to 85 8 Ld SOIC M8.15
ISL6613BCB-T 6613BCB 8 Ld SOIC Tape and Reel
ISL6613BCBZ (Note) 6613BCBZ 0 to 85 8 Ld SOIC (Pb-free) M8.15
ISL6613BCBZ-T (Note) 6613BCBZ 8 Ld SOIC Tape and Reel (Pb-free)
ISL6613BCR 13BC 0 to 85 10 Ld 3x3 DFN L10.3x3
ISL6613BCR-T 13BC 10 Ld 3x3 DFN Tape and Reel
ISL6613BCRZ (Note) 13BZ 0 to 85 10 Ld 3x3 DFN (Pb-free) L10.3x3
ISL6613BCRZ-T (Note) 13BZ 10 Ld 3x3 DFN Tape and Reel (Pb-free)
ISL6613BECB 6613BECB 0 to 85 8 Ld EPSOIC M8.15B
ISL6613BECB-T 6613BECB 8 Ld EPSOIC Tape and Reel
ISL6613BECBZ (Note) 6613BECBZ 0 to 85 8 Ld EPSOIC (Pb-free) M8.15B
ISL6613BECBZ-T (Note) 6613BECBZ 8 Ld EPSOIC Tape and Reel (Pb-free)
ISL6613BEIB 6613BEIB -40°C to 85°C 8 Ld EPSOIC M8.15B
ISL6613BEIB-T 6613BEIB 8 Ld EPSOIC Tape and Reel
ISL6613BEIBZ (Note) 6613BEIBZ -40°C to 85°C 8 Ld EPSOIC (Pb-free) M8.15B
ISL6613BEIBZ-T (Note) 6613BEIBZ 8 Ld EPSOIC Tape and Reel (Pb-free)

RANGE (°C) PACKAGE

to 85 8 Ld EPSOIC M8.15B

to 85 8 Ld EPSOIC (Pb-free) M8.15B

PKG.

DWG. #

2

FN9205.3

July 27, 2006

ISL6612B, ISL6613B

www.BDTIC.com/Intersil

Ordering Information (Continued)

TEMP.

PART NUMBER PART MARKING

RANGE (°C) PACKAGE

ISL6613BIB 6613BIB -40°C to 85°C 8 Ld SOIC M8.15
ISL6613BIB-T 6613BIB 8 Ld SOIC Tape and Reel
ISL6613BIBZ (Note) 6613BIBZ -40°C to 85°C 8 Ld SOIC (Pb-free) M8.15
ISL6613BIBZ-T (Note) 6613BIBZ 8 Ld SOIC Tape and Reel (Pb-free)
ISL6613BIR 13BI -40°C to 85°C 10 Ld 3x3 DFN L10.3x3
ISL6613BIR-T 13BI 10 Ld 3x3 DFN Tape and Reel
ISL6613BIRZ (Note) 3BIZ -40°C to 85°C 10 Ld 3x3 DFN (Pb-free) L10.3x3
ISL6613BIRZ-T (Note) 3BIZ 10 Ld 3x3 DFN Tape and Reel (Pb-free)

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.

Contact the factory for availability.

PKG.

DWG. #

Pinouts

ISL6612BCB, ISL6613BCB (SOIC)

ISL6612BECB, ISL6613BECB (EPSOIC)

UGATE

BOOT

PWM

GND

Block Diagram

1
2
3
4

VCC

PWM

TOP VIEW

GND

+5V

10K

8K

8

PHASE

7

PVCC
VCC

6

LGATE

5

UVCC

PRE-POR OVP

FEATURES

POR/

CONTROL

LOGIC

ISL6612B AND ISL6613B

SHOOT-

THROUGH

PROTECTION

ISL6612BCR, ISL6613BCR (10L 3x3 DFN)

TOP VIEW

UGATE

(LVCC)

BOOT

N/C

PWM

GND

1
2
3
4
5

GND

BOOT

UGATE

PHASE

PVCC

LGATE

10

PHASE

9

PVCC

8

N/C

7

VCC

6

LGATE

UVCC = VCC FOR ISL6612B
UVCC = PVCC FOR ISL6613B

PAD

FOR DFN AND EPSOIC-DEVICES, THE PAD ON THE BOTTOM SIDE OF
THE PACKAGE MUST BE SOLDERED TO THE CIRCUIT’S GROUND.

3

GND

FN9205.3

July 27, 2006

ISL6612B, ISL6613B

www.BDTIC.com/Intersil

Typical Application - 3 Channel Converter Using ISL65xx and ISL6612B Gate Drivers

VSEN

VSEN

PGOOD

PGOOD

VFB

VFB

VCC

VCC

+5V

+5V

COMP

COMP

PWM1

PWM1
PWM2

PWM2
PWM3

PWM3

+5V TO 12V

+5V TO 12V

PVCC

PVCC

PWM

PWM

+5V TO 12V

+5V TO 12V

PVCC

PVCC

PWM

PWM

VCC

VCC

ISL6612B

ISL6612B

GND

GND

VCC

VCC

ISL6612B

ISL6612B

BOOT

BOOT

UGATE

UGATE

PHASE

PHASE

LGATE

LGATE

BOOT

BOOT

UGATE

UGATE

PHASE

PHASE

LGATE

LGATE

+7V to +12V

+7V to +12V

+V

+V

CORE

CORE

VID

VID

FS

FS

MAIN

MAIN

CONTROL

CONTROL

ISL65xx

ISL65xx

GND

GND

ISEN1

ISEN1
ISEN2

ISEN2
ISEN3

ISEN3

GND

GND

+5V TO 12V

+5V TO 12V

VCC

VCC

PVCC

PVCC

ISL6612B

ISL6612B

PWM

PWM

GND

GND

BOOT

BOOT

UGATE

UGATE

PHASE

PHASE

LGATE

LGATE

+7V to +12V

4

FN9205.3

July 27, 2006