ISL6612ACBZ Intersil, ISL6612ACBZ Datasheet

IC DRIVER MOSFET SYNC BUCK 8SOIC

ISL6612ACBZ

Manufacturer Part Number
ISL6612ACBZ
Description
IC DRIVER MOSFET SYNC BUCK 8SOIC
Manufacturer
Intersil
Datasheet

Specifications of ISL6612ACBZ

Configuration
High and Low Side, Synchronous
Input Type
PWM
Delay Time
10.0ns
Current - Peak
1.25A
Number Of Configurations
1
Number Of Outputs
2
High Side Voltage - Max (bootstrap)
36V
Voltage - Supply
10.8 V ~ 13.2 V
Operating Temperature
0°C ~ 85°C
Mounting Type
Surface Mount
Package / Case
8-SOIC (3.9mm Width)
Lead Free Status / RoHS Status
Lead free / RoHS Compliant

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Advanced Synchronous Rectified Buck
MOSFET Drivers with Pre-POR OVP
The ISL6612A and ISL6613A 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
MOSFETs form complete core-voltage regulator solutions for
advanced microprocessors.
The ISL6612A drives the upper gate to 12V, while the lower
gate can be independently driven over a range from 5V to
12V. The ISL6613A drives both upper and lower gates over
a range of 5V to 12V. This drive-voltage provides the
flexibility necessary to optimize applications involving trade-
offs between gate charge and conduction losses.
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 startup.
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.
®
1
Data Sheet
1-888-INTERSIL or 1-888-468-3774
CAUTION: These devices are sensitive to electrostatic discharge; follow proper IC Handling Procedures.
Features
• Pin-to-pin Compatible with HIP6601 SOIC family
• Dual MOSFET Drives for Synchronous Rectified Bridge
• Advanced Adaptive Zero Shoot-Through Protection
• 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)
• Three-State PWM Input for Output Stage Shutdown
• Three-State PWM Input Hysteresis for Applications With
• Pre-POR Overvoltage Protection
• VCC Undervoltage Protection
• Expandable Bottom Copper Pad for Enhanced Heat
• Dual Flat No-Lead (DFN) Package
• Pb-Free Plus Anneal Available (RoHS Compliant)
Applications
• Core Regulators for Intel® and AMD® Microprocessors
• High Current DC/DC Converters
• High Frequency and High Efficiency VRM and VRD
Related Literature
• Technical Brief TB363 “Guidelines for Handling and
• Technical Brief TB417 for Power Train Design, Layout
- Body Diode Detection
- Auto-zero of r
- 3A Sinking Current Capability
- Fast Rise/Fall Times and Low Propagation Delays
Power Sequencing Requirement
Sinking
- Near Chip-Scale Package Footprint; Improves PCB
Processing Moisture Sensitive Surface Mount Devices
(SMDs)”
Guidelines, and Feedback Compensation Design
Efficiency and Thinner in Profile
All other trademarks mentioned are the property of their respective owners.
July 27, 2006
|
Intersil (and design) is a registered trademark of Intersil Americas Inc.
Copyright © Intersil Americas Inc. 2005, 2006. All Rights Reserved
DS(ON)
ISL6612A, ISL6613A
Conduction Offset Effect
FN9159.6

Related parts for ISL6612ACBZ

ISL6612ACBZ Summary of contents

Page 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 registered trademark of Intersil Americas Inc. Copyright © Intersil Americas Inc. 2005, 2006. All Rights Reserved All other trademarks mentioned are the property of their respective owners. ...

Page 2

... Ordering Information PART NUMBER PART MARKING ISL6612ACB ISL6612ACB ISL6612ACB-T ISL6612ACB ISL6612ACBZ (Note) 6612ACBZ ISL6612ACBZ-T (Note) 6612ACBZ ISL6612ACBZA (Note) 6612ACBZ ISL6612ACBZA-T (Note) 6612ACBZ ISL6612ACR 12AC ISL6612ACR-T 12AC ISL6612ACRZ (Note) 12AZ ISL6612ACRZ-T (Note) 12AZ ISL6612AECB 6612AECB ISL6612AECB-T 6612AECB ISL6612AECBZ (Note) 6612AECBZ ISL6612AECBZ-T (Note) ...

Page 3

... 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. ...

Page 4

Typical Application - 3 Channel Converter Using ISL65xx and ISL6612A Gate Drivers +5V VFB VCC COMP PWM1 VSEN PWM2 PGOOD PWM3 MAIN CONTROL ISL65xx VID ISEN1 ISEN2 FS ISEN3 GND 4 ISL6612A, ISL6613A +12V +5V TO 12V BOOT VCC UGATE ...

Page 5

Absolute Maximum Ratings Supply Voltage (VCC 15V Supply ...

Page 6

Electrical Specifications Recommended Operating Conditions, Unless Otherwise Noted. (Continued) PARAMETER Three-State Upper Gate Rising Threshold Three-State Upper Gate Falling Threshold Shutdown Holdoff Time UGATE Rise Time LGATE Rise Time UGATE Fall Time LGATE Fall Time UGATE Turn-On Propagation Delay (Note ...

Page 7

... The Three-State PWM Input PDHL A unique feature of these drivers and other Intersil drivers is the addition of a shutdown window to the PWM input. If the PWM signal enters and remains within the shutdown window for a set holdoff time, the driver outputs are disabled and ], turning on the lower both MOSFET gates are pulled and held low ...

Page 8

ELECTRICAL SPECIFICATIONS determine when the lower and upper gates are enabled. This feature helps prevent a negative transient on the output voltage when the output is shut down, eliminating the Schottky diode that is used in ...

Page 9

See Layout Considerations paragraph for thermal transfer improvement suggestions. When designing the driver into an application recommended that the following calculation is used to ensure safe operation at the desired ...

Page 10

... The pin #1 identifier may be either a mold or mark feature. 7. Dimensions D2 and E2 are for the exposed pads which provide NX b improved electrical and thermal performance Nominal dimensions are provided to assist with PCB Land Pattern Design efforts, see Intersil Technical Brief TB389. 0. 0.200 ...

Page 11

Small Outline Exposed Pad Plastic Packages (EPSOIC) N INDEX 0.25(0.010) H AREA E - TOP VIEW SEATING PLANE - -C- α 0.10(0.004) 0.25(0.010 SIDE VIEW 1 ...

Page 12

... Accordingly, the reader is cautioned to verify that data sheets are current before placing orders. Information furnished by Intersil is believed to be accurate and reliable. However, no responsibility is assumed by Intersil or its subsidiaries for its use; nor for any infringements of patents or other rights of third parties which may result from its use ...

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