DATASHEET
ISL6612A, ISL6613A
FN9159
Rev.8.00
Aug 8, 2019
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 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.
Features
• Pin-to-pin Compatible with HIP6601 SOIC family
• Dual MOSFET Drives for Synchronous Rectified Bridge
• Advanced Adaptive Zero Shoot-Through Protection
- Body Diode Detection
- Auto-zero of rDS(ON) Conduction Offset Effect
• 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 (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
For a full list of related documents, visit our website
• ISL6612A, ISL6613A device pages
FN9159 Rev.8.00
Aug 8, 2019
Page 1 of 14
ISL6612A, ISL6613A
Ordering Information
PART NUMBER
(Notes 2, 3)
PART MARKING
TEMP.
RANGE (°C)
TAPE AND REEL
(UNITS) (Note 1)
PACKAGE
(RoHS Compliant)
PKG.
DWG. #
ISL6612ACBZ
6612 ACBZ
0 to +85
-
8 Ld SOIC
M8.15
ISL6612ACBZ-T
6612 ACBZ
0 to +85
2.5k
8 Ld SOIC
M8.15
ISL6612ACBZA-T
6612 ACBZ
0 to +85
2.5k
8 Ld SOIC
ISL6612ACRZ (No longer
available, recommended
replacement: ISL6612ACBZ-T)
12AZ
0 to +85
-
10 Ld 3x3 DFN
L10.3x3
ISL6612ACRZ-T (No longer
available, recommended
replacement: ISL6612ACBZ-T)
12AZ
0 to +85
6k
10 Ld 3x3 DFN
L10.3x3
ISL6612AECBZ(No longer
available, recommended
replacement: ISL6612ACBZ-T)
6612 AECBZ
0 to +85
-
8 Ld EPSOIC
M8.15B
ISL6612AECBZ-T (No longer
available, recommended
replacement: ISL6612ACBZ-T)
6612 AECBZ
0 to +85
2.5k
8 Ld EPSOIC
M8.15B
ISL6612AIBZ
6612 AIBZ
-40 to +85
-
8 Ld SOIC
M8.15
ISL6612AIBZ-T
6612 AIBZ
-40 to +85
2.5k
8 Ld SOIC
M8.15
ISL6613ACRZ (No longer
available, recommended
replacement: ISL6613BCRZ-T)
13AZ
0 to +85
-
10 Ld 3x3 DFN
L10.3x3
ISL6613ACRZ-T (No longer
available, recommended
replacement: ISL6613BCRZ-T)
13AZ
0 to +85
6k
10 Ld 3x3 DFN
L10.3x3
ISL6613AEIBZ
6613 AEIBZ
-40 to +85
-
8 Ld EPSOIC
M8.15B
ISL6613AEIBZ-T
6613 AEIBZ
-40 to +85
2.5k
8 Ld EPSOIC
M8.15B
M8.15
NOTES:
1. See TB347 for details about reel specifications.
2. These 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). 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.
3. For Moisture Sensitivity Level (MSL), see the ISL6612A, ISL6613A device pages. For more information about MSL, see TB363.
Pinouts
8LD SOIC, 8 LD EPSOIC
TOP VIEW
UGATE
1
BOOT
2
GND
8
PHASE
7
PVCC
PWM
3
6
VCC
GND
4
5
LGATE
10 LD 3x3 DFN
TOP VIEW
N
FN9159 Rev.8.00
Aug 8, 2019
1
UGATE
BOOT
2
N/C
3
OL
E
BL
GND
I LA
A
PWM R 4AV
E
NG 5
OGND
D
TE
R
10 PHASE
PO
UP
S
OR 9 PVCC
8
N/C
7
VCC
6 LGATE
Page 2 of 14
ISL6612A, ISL6613A
Block Diagram
ISL6612A AND ISL6613A
UVCC
BOOT
VCC
UGATE
Pre-POR OVP
FEATURES
+5V
10k
POR/
PWM
SHOOTTHROUGH
PROTECTION
PHASE
(LVCC)
PVCC
CONTROL
8k
LOGIC
UVCC = VCC FOR ISL6612A
UVCC = PVCC FOR ISL6613A
LGATE
GND
PAD
FN9159 Rev.8.00
Aug 8, 2019
FOR DFN AND EPSOIC-DEVICES, THE PAD ON THE BOTTOM SIDE OF
THE PACKAGE MUST BE SOLDERED TO THE CIRCUIT’S GROUND.
Page 3 of 14
ISL6612A, ISL6613A
Typical Application - 3 Channel Converter Using ISL65xx and ISL6612A Gate Drivers
+12V
+5V TO 12V
VCC
BOOT
UGATE
PVCC
PWM
ISL6612A
PHASE
LGATE
GND
+12V
+5V TO 12V
+5V
VCC
VFB
VCC
UGATE
PVCC
PWM1
VSEN
PWM2
PGOOD
PWM
+VCORE
BOOT
COMP
ISL6612A
PHASE
PWM3
LGATE
MAIN
CONTROL
ISL65xx
VID
GND
ISEN1
ISEN2
FS
ISEN3
+12V
+5V TO 12V
GND
VCC
BOOT
UGATE
PVCC
PWM
ISL6612A
PHASE
LGATE
GND
FN9159 Rev.8.00
Aug 8, 2019
Page 4 of 14
ISL6612A, ISL6613A
Absolute Maximum Ratings
Thermal Information
Supply Voltage (VCC) . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 15V
Supply Voltage (PVCC) . . . . . . . . . . . . . . . . . . . . . . . . . VCC + 0.3V
BOOT Voltage (VBOOT-GND) . . . . . . . . . . . . . . . . . . . . . . . . . . . 36V
Input Voltage (VPWM). . . . . . . . . . . . . . . . . . . . . . .GND - 0.3V to 7V
UGATE . . . . . . . . . . . . . . . . . . . VPHASE - 0.3VDC to VBOOT + 0.3V
VPHASE - 3.5V (
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