CHL8225G-00CRT International Rectifier, CHL8225G-00CRT Datasheet

CHL8225G-00CRT

Manufacturer Part Number

CHL8225G-00CRT

Description

Dual loop, 4+1 multiphase PWM controller for graphics processor VR solutions with multiple input rail control

Manufacturer

International Rectifier

Datasheet

1.CHL8225G-00CRT.pdf (2 pages)

Specifications of CHL8225G-00CRT

Controller

GPU

Overclocking

Yes

Auto-psi/dpc

Yes

Vgd

Yes

Voltage Outputs (#)

Phases (#)

Typical Configuration

4 + 1 Multiphase

I2c

Yes

Smbus

Yes

Pmbus

Yes

Package

QFN 6 x 6

Available stocks

Company

Part Number

Manufacturer

Quantity

Price

Company:

Bonase Electronics (HK) Co., Limited

Part Number:

CHL8225G-00CRT-IR

Manufacturer:

FSC

Quantity:

1 200

Current page: 1 of 2
Download datasheet (266Kb)

FEATURES

APPLICATIONS

PIN DIAGRAM

 5-phase & 8-phase dual output PWM Controller

 Dynamic voltage control by 2-bit parallel interface

 Input Voltage Management for up to 3 Input

 ICRITICAL Monitor and Phase Current Capture Mode

 Phase Switching frequency from 200kHz to 1.2MHz

 IR Efficiency Shaping Features including Variable

 Programmable 1-phase or 2-phase for Light Loads

 IR Adaptive Transient Algorithm (ATA) minimizes

 Per-Loop Fault Protection: OVP, UVP, OCP, OTP

 I2C/SMBus/PMBus system interface for telemetry of

 Non-Volatile Memory (NVM) for custom

 Compatible with IR ATL and 3.3V tri-state Drivers

 +3.3V supply voltage; 0ºC to 85ºC ambient

 Pb-Free, RoHS, 6x6 40-pin & 8x8 56-pin QFN

 Multiphase GPU systems

with phases flexibly assigned between Loops 1 & 2

with Gamer Mode override and Vmax setting

Voltages

Gate Drive, Dynamic Phase Control

and Active Diode Emulation for Very Light Loads

output bulk capacitors and system cost

Temperature, Voltage, Current & Power for both

loops

configuration

operation

packages

VR_READY_L1

VR_READY_L2

Figure 1: CHL8225G Package Top View

RCSM

RCSP

RRES

VSEN

VRTN

TSEN

V18A

VCC

February 22, 2012 | FINAL | V1.05

40 Pin 6x6 QFN

CHL8225G

Top View

41 GND

Digital Multi-Phase Buck Controller

RCSP_L2

RCSM_L2

VCC

VSEN_L2

VRTN_L2

PWM5

PWM4

PWM3

PWM2

PWM1

DESCRIPTION

The CHL8225G/8G are dual-loop, digital multi-phase buck

controllers. The CHL8225G drives up to 5 phases and the

CHL8228G drives up to 8 phases. They feature Input

Voltage Management allowing up to 3 input voltages to be

monitored to ensure adequate power is delivered to the

load. Dynamic voltage control is provided by 4 registers

which are programmed through I2C/SMBus/PMBus and

then selected using a 2-bit parallel bus for fast access.

The CHL8225G/8G includes the IR Efficiency Shaping

Technology to deliver exceptional efficiency at minimum

cost across the entire load range. IR Variable Gate Drive

optimizes the MOSFET gate drive voltage as a function of

real-time load current. IR Dynamic Phase Control adds and

drops phases based upon load current. The CHL8225G/8G

can be configured to enter 1-phase operation and active

diode emulation based upon load current or by command.

IR’s unique Adaptive Transient Algorithm (ATA), based on

proprietary non-linear digital PWM algorithms, minimizes

output bulk capacitors.

The I2C/PMBus interface can communicate with up to 16

CHL8225G/8G-based VR loops. Device configuration and

fault parameters are defined using the IR Digital Power

Design Center (DPDC) GUI and stored in on-chip NVM.

The CHL8225G/8G provides extensive OVP, UVP, OCP and

OTP fault protection and includes thermistor based

temperature sensing with VRHOT signal. The CHL8225G/8G

includes numerous features like register diagnostics for

fast design cycles and platform differentiation, simplifying

VRD design and enabling fastest time-to-market with its

“set-and-forget” methodology.

VR_READY_L1

VR_READY_L2

VRHOT2

VINSEN

EN_L2

ISEN8

RCSM

RCSP

VSEN

VRTN

RRES

TSEN

V18A

VCC

Figure 2: CHL8228G Package Top View

56 Pin 8x8 QFN

CHL8228G

Top View

CHL8225G/8G

57 GND

ISEN7

RCSP_L2

RCSM_L2

VCC

VSEN_L2

VRTN_L2

PWM8

PWM7

PWM6

PWM5

PWM4

PWM3

PWM2

PWM1

Related parts for CHL8225G-00CRT

CHL8225G-00CRT Summary of contents

Page 1

... Digital Multi-Phase Buck Controller DESCRIPTION The CHL8225G/8G are dual-loop, digital multi-phase buck controllers. The CHL8225G drives phases and the CHL8228G drives phases. They feature Input Voltage Management allowing input voltages to be monitored to ensure adequate power is delivered to the load. Dynamic voltage control is provided by 4 registers which are programmed through I2C/SMBus/PMBus and then selected using a 2-bit parallel bus for fast access ...

Page 2

... TSEN PWM3 23 10 V18A PWM2 22 11 VR_READY_L1 41 GND VR_READY_L2 12 PWM1 21 13 EN_L2 VINSEN CHL8225G/8G Tape & Reel Qty Part Number CHL8225G-00CRT 3000 3000 CHL8225G-xxCRT 3000 CHL8228G-00CRT 3000 CHL8228G-xxCRT CHL8228G 56 Pin 8x8 QFN ...

Related keywords

CHL8225G-00CRT datasheet
CHL8225G-00CRT data sheet
CHL8225G-00CRT pdf datasheet
CHL8225G-00CRT component
CHL8225G-00CRT part
CHL8225G-00CRT distributor
CHL8225G-00CRT RoHS
CHL8225G-00CRT datasheet download