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PDF CHL8510 Data sheet ( Hoja de datos )
| Número de pieza | CHL8510 | |
| Descripción | HIGH EFFICIENCY 6A BUCK MOSFET DRIVER | |
| Fabricantes | CHiL Semiconductor | |
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Product Brief
CHL8510
HIGH EFFICIENCY 6A BUCK MOSFET DRIVER
FEATURES
Drives both high-side and low-side MOSFETs in a
synchronous buck configuration
Large drivers designed to drive 6nF server class FETs
o Low side driver - 4A source / 6A sink
o High side driver – 3A source / 4A sink
o Transitions times & Propagation delays < 20ns
Independent variable gate voltage for both high and
low side drivers from 4.5V to 13.2V
o Improves efficiency
o Compatible with CHiL controller VGD feature
Integrated bootstrap diode
o Reduces external component count
Capable of high switching frequencies from 200kHz up
to 1MHz
Configurable PWM modes of operation
o CHiL Active Tri-Level (ATL), disables both
MOSFETs in 30ns with no hold-off time
o Generic tristate PWM with hold-off
Adaptive non-overlap protection minimizes diode
conduction time
Input supply under voltage protection
Thermally enhanced 10 pin DFN package
Lead free RoHS compliant package, MSL level 1
BOOT 1
HVCC 2
PWM 3
VCC 4
LVCC 5
GND
Pin 11
Top View
3x3 DFN
10 HI_GATE
9 SWITCH
8 MODE
7 GND
6 LO_GATE
Figure 1. CHL8510 10 pin DFN Package
DESCRIPTION
The CHL8510 MOSFET is a high efficiency gate driver
which can switch both high-side and low-side N-channel
external MOSFETs in a synchronous buck converter. It is
intended for use with CHiL Digital PWM controllers to
provide a total voltage regulator (VR) solution for today’s
advanced computing applications.
The CHL8510 low side driver is capable of rapidly
switching large MOSFETs with low Rdson and large input
capacitance used in high efficiency designs.
The CHL8510 features individual control of both the high-
and low-side gate drive voltages from 4.5V to 13.2V. This
enables the optimization of switching and conduction
losses in the external MOSFETs. When used with CHiL’s
proprietary Variable Gate Drive (VGD) technology, a
significant improvement in efficiency is observed across the
entire load range.
The CHL8510 can be configured to drive both the high and
low side switches from the unique CHiL fast Active Tri-
Level (ATL) PWM signal or a generic tri-state PWM mode.
The CHiL ATL mode allows the controller to disable the
high and low side FETS in less than 30ns without the need
for a dedicated disable pin. This improves VR transient
performance, especially during load release.
The integrated boot diode reduces external component
count. The CHL8510 also features an adaptive non-overlap
control for shoot-through protection. This prevents cross
conduction of both high-side and low-side MOSFETs and
minimizes body diode conduction time to provide best in
class efficiency.
APPLICATIONS
Multiphase synchronous buck converter for Server and
desktop computers using Intel® and AMD® VR
solutions
High efficiency and compact VRM
High current DC/DC Converters
Trademarks and registered trademarks are the property of the respective
owners.
PB0003, Rev 1.1, October 26, 2009
Page 1 of 2
One Highwood Drive, Tewksbury, MA 01876
Tel: +1 (978)-640-0011
www.chilsemi.com
© 2009 CHiL Semiconductor Corp. All rights reserved
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