CHL8505CRT International Rectifier, CHL8505CRT Datasheet

CHL8505CRT

Manufacturer Part Number

CHL8505CRT

Description

5V MOSFET Driver

Manufacturer

International Rectifier

Datasheet

1.CHL8505CRT.pdf (2 pages)

Specifications of CHL8505CRT

Vcc

V Drive

Vgd

System Voltage

5V to 22V

Interface

ATL

Hs Source / Sink (a)

1.5 / 1.5

Hs Source / Sink (o)

1.5 / 1.5

Ls Source / Sink (a)

1.5 / 3.0

Ls Source / Sink (o)

1.4 / 0.0

Boot Diode

Yes

Overtemp

Package

DFN10

Current page: 1 of 2
Download datasheet (126Kb)

FEATURES

APPLICATIONS

BASIC APPLICATION

 Multiphase synchronous buck converter for Server

 High efficiency and compact VRM

 Optimized for Sleep state S3 systems using +5VSB

 Notebook Computer and Graphics VR solutions

 Ideal for Server Memory applications using +5V

 Fixed 5V Gate Drive

 Large drivers designed to drive 3nF in < 15ns

 Integrated bootstrap diode

 Capable of high switching frequencies from 200kHz

 Compatible with IR’s patented Active Tri‐Level

 Non‐overlap and under voltage protection

 Thermally enhanced 10‐pin DFN package

 Lead free RoHS compliant package

 Low Quiescent power to optimize efficiency

CPUs and DDR Memory VR solutions

with +5V drive

 Low‐side driver – 2A source/4A sink

 High‐side driver – 2A source/2A sink

 Transitions times & Propagation delays < 15ns

up to greater than 1MHz

(ATL) PWM for fastest response to transient

overshoot

Figure 1: CHL8505 Basic Application Circuit

December 6, 2011 | FINAL | V1.05

High‐Efficiency 5V MOSFET Gate Driver

DESCRIPTION

The CHL8505 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 IR Digital PWM controllers to provide a total

voltage regulator (VR) solution for today’s advanced

computing applications.

The CHL8505 driver is capable of rapidly switching large

MOSFETs with low R

in high‐efficiency designs. It is uniquely designed to

operate from a 5V source such as a system 5V or 5V

standby voltages in sleep states.

The CHL8505 has a unique circuit which improves drive

strength to the external MOSFETs even with just 5V

supplied at the VDRV pin. This insures faster switching

comparable to drivers designed for +12V drive operation.

The integrated boot diode reduces external component

count. The CHL8505 also features an adaptive non‐overlap

control for shoot‐through protection.

The CHL8505 is configured to drive both the high and low‐

side switches from the patented IR fast Active Tri‐Level

(ATL) PWM signal, which will optimize the turn off time of

individual phases, optimizing transient performance.

PIN DIAGRAM

VDRV

BOOT

PWM

VCC

Figure 2: CHL8505 Package Top View

dson

and large input capacitance used

Top View

3x3 DFN

Pin 11

GND

CHL8505

LO_GATE

SWITCH

HI_GATE

Related parts for CHL8505CRT

CHL8505CRT Summary of contents

Page 1

FEATURES  Ideal for Server Memory applications using +5V  Fixed 5V Gate Drive  Large drivers designed to drive 3nF in < 15ns with +5V drive  Low‐side driver – 2A source/4A sink  High‐side driver – 2A source/2A sink  Transitions times & Propagation delays < 15ns  Integrated bootstrap diode  Capable of high switching frequencies from 200kHz up to greater than 1MHz  Compatible with IR’s patented Active Tri‐Level (ATL) PWM for fastest response to transient overshoot  Non‐overlap and under voltage protection  Thermally enhanced 10‐pin DFN package  Lead free RoHS compliant package  Low Quiescent power to optimize efficiency APPLICATIONS  Multiphase synchronous buck converter for Server CPUs and DDR Memory VR solutions  High efficiency and compact VRM  Optimized for Sleep state S3 systems using +5VSB ...

Page 2

... Top View GND Pin 11 3x3 DFN Figure 3: CHL8505 Pin Diagram Enlarged CHL8505 Tape & Reel Qty Part Number 3000 CHL8505CRT LO_GATE 7 SWITCH 6 HI_GATE ...

Related keywords

CHL8505CRT datasheet
CHL8505CRT data sheet
CHL8505CRT pdf datasheet
CHL8505CRT component
CHL8505CRT part
CHL8505CRT distributor
CHL8505CRT RoHS
CHL8505CRT datasheet download