ISL6210 Intersil Corporation, ISL6210 Datasheet

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ISL6210

Manufacturer Part Number
ISL6210
Description
Dual Synchronous Rectified MOSFET Drivers
Manufacturer
Intersil Corporation
Datasheet

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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
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.
ISL6210CRZ
ISL6210CRZ-T 62 10CRZ -10 to +100 16 Ld 4x4 QFN L16.4x4
NUMBER
(Note)
PART
PRELIMINARY
MARKING
62 10CRZ -10 to +100 16 Ld 4x4 QFN L16.4x4
PART
®
RANGE
TEMP.
(°C)
1
AMD® is a registered trademark of Advanced Micro Devices, Inc. All other trademarks mentioned are the property of their respective owners.
Data Sheet
PACKAGE
(Pb-Free)
DWG. #
Copyright Intersil Americas Inc. 2006. All Rights Reserved. Intel® is a registered trademark of Intel Corporation.
PKG.
1-888-INTERSIL or 1-888-468-3774
CAUTION: These devices are sensitive to electrostatic discharge; follow proper IC Handling Procedures.
Features
• 5V Quad N-Channel MOSFET Drives for Two
• Adaptive Shoot-Through Protection
• 0.4Ω On-Resistance and 4A Sink Current Capability
• Supports High Switching Frequency
• Low V
• Low Bias Supply Current
• Power-On Reset
• QFN Package
• Pb-Free Plus Anneal Available (RoHS Compliant)
Applications
• Core Voltage Supplies for Intel® and AMD®
• High Frequency Low Profile High Efficiency DC/DC
• High Current Low Voltage DC/DC Converters
• Synchronous Rectification for Isolated Power Supplies
Related Literature
• Technical Brief TB363 “Guidelines for Handling and
• Technical Brief 400 and Technical Brief 417 for Power
• Technical Brief 447 “Guidelines for Preventing Boot-to-
November 28, 2006
Synchronous Rectified Bridges
- Active Gate Threshold Monitoring
- Programmable Dead-Time
- Fast Output Rise and Fall
- Ultra Low Three-State Hold-Off Time (20ns)
- Compliant to JEDEC PUB95 MO-220 QFN-Quad Flat
- Near Chip-Scale Package Footprint; Improves PCB
Microprocessors
Converters
Processing Moisture Sensitive Surface Mount Devices
(SMDs)”
Train Design, Layout Guidelines, and Feedback
Compensation Design
Phase Stress on Half-Bridge MOSFET Driver ICs”
No Leads-Product Outline
Efficiency and Thinner in Profile
F
Internal Bootstrap Diode
|
Intersil (and design) is a registered trademark of Intersil Americas Inc.
ISL6210
FN6392.0

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ISL6210 Summary of contents

Page 1

... 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 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 ...

Page 2

... LGATE1 2 11 BOOT1 GND 10 PVCC 3 BOOT2 FCCM 4 9 UGATE2 ISL6210 PVCC SHOOT- THROUGH PROTECTION PVCC PGND PVCC SHOOT- THROUGH PROTECTION PGND THE PAD ON THE BOTTOM SIDE OF THE QFN PACKAGE PAD MUST BE SOLDERED TO THE CIRCUIT’S GROUND. BOOT1 UGATE1 PHASE1 ...

Page 3

... Typical Application - Multiphase Converter Using ISL6210 Gate Drivers COMP FB V VSEN CC ISEN1 PWM1 PGOOD EN PWM2 ISEN2 MAIN CONTROL ISL62xx VID ISEN3 FCCM PWM3 PWM4 GND ISEN4 EN 3 ISL6210 BOOT1 +5V UGATE1 VCC PHASE1 FCCM LGATE1 EN DUAL PVCC DRIVER ISL6210 +5V BOOT2 UGATE2 PWM1 ...

Page 4

... LGATE Fall Time (Note 3) UGATE Turn-Off Propagation Delay LGATE Turn-Off Propagation Delay UGATE Turn-On Propagation Delay LGATE Turn-On Propagation Delay 4 ISL6210 Thermal Information Thermal Resistance (Notes 1 and 2) QFN Package . . . . . . . . . . . . . . . . . . Maximum Junction Temperature . . . . . . . . . . . . . . . . . . . . . . +150° -0. (DC) Maximum Storage Temperature Range . . . . . . . . . .-65°C to +150°C -0. (< ...

Page 5

... PWM Input section under DESCRIPTION for further details. Connect this pin to the PWM output of the controller. N/A PAD Connect this pad to the power ground plane (GND) via thermally enhanced connection. 5 ISL6210 = -10°C to +100°C, Unless Otherwise Noted (Continued) A SYMBOL TEST CONDITIONS ...

Page 6

... DS(ON) MOSFET can cause gross current measurement inaccuracies. Three-State PWM Input A unique feature of the ISL6210 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 output drivers are disabled and both MOSFET gates are pulled and held low ...

Page 7

... FCCM = RESISTOR to VCC or GND GATE A ADAPTIVE PROTECTION WITH DELAY 50ns DELAY 1V FIGURE 2. PROGRAMMABLE DEAD-TIME 7 ISL6210 FIGURE 3. ISL6210 PROGRAMMABLE DEAD-TIME vs The equation governing the dead-time seen in Figure 3 is GATE B expressed as: T DELAY ns The equation can be rewritten to solve for R follows: R DELAY Internal Bootstrap Diode This driver features an internal bootstrap diode ...

Page 8

... SW ⎝ ⎠ GS1 GS2 8 ISL6210 where the gate charge (Q particular gate to source voltage (V corresponding MOSFET data sheet; I quiescent current with no load at both drive outputs; N and N respectively. The I the driver without capacitive load and is typically negligible. The total gate drive power losses are dissipated among the resistive components along the transition path ...

Page 9

... FETs must be used, a Schottky diode is recommended across the lower MOSFET to clamp negative PHASE ring. 9 ISL6210 A good layout would help reduce the ringing on the phase and gate nodes significantly: • Avoid uses via for decoupling components across BOOT and PHASE pins and in between VCC and GND pins. The decoupling loop should be short. • ...

Page 10

... 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. No license is granted by implication or otherwise under any patent or patent rights of Intersil or its subsidiaries. For information regarding Intersil Corporation and its products, see www.intersil.com 10 ISL6210 L16.4x4 16 LEAD QUAD FLAT NO-LEAD PLASTIC PACKAGE (COMPLIANT TO JEDEC MO-220-VGGC ISSUE C) ...

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