CHL8203-00CRT International Rectifier, CHL8203-00CRT Datasheet

CHL8203-00CRT

Manufacturer Part Number

CHL8203-00CRT

Description

3 phase multiphase PWM controller for cost effective graphics processor VR solutions

Manufacturer

International Rectifier

Datasheet

1.CHL8214-00CRT.pdf (2 pages)

Specifications of CHL8203-00CRT

Controller

GPU

Overclocking

Yes

Auto-psi/dpc

Yes

Vgd

Voltage Outputs (#)

Phases (#)

Typical Configuration

3 Multiphase

I2c

Yes

Smbus

Pmbus

Package

QFN 5 x 5

Current page: 1 of 2
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FEATURES

APPLICATIONS

 Dual output 2/3/4+1-phase PWM Controller

 Easiest layout and fewest pins in the industry

 Footprint compatible with CHL8225 (CHL8213/14)

 Up to 3 VID select lines for dynamic voltage

 Slow OCP for Thermal Design Current (TDC)

 Programmable I

 I2C interface for configuration & telemetry

 Pin programmable I2C address (CHL8203/13/14)

 Overclocking support with I2C voltage override and

 Flexible I2C bus security features

 I2C security enable pin (CHL8203/13/14)

 Independent loop switching frequencies from 200kHz

 IR Efficiency Shaping with Dynamic Phase Control

 1-phase & Active Diode Emulation modes for light

 IR Adaptive Transient Algorithm (ATA) on both loops

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

 Thermal Protection (OTP) and VRHOT# flag

 Multiple time programmable (MTP) memory for

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

 3.3V +10%/-15% supply voltage; 0ºC to 85ºC

 Pb-Free, RoHS, QFN packages

 Multi-phase GPU Systems

 GDDR Memory

(CHL8212/13/14) and single output 3-phase PWM

Controller (CHL8203)

for analog and power signals

transitions

protection

Vmax setting

to 1.2MHz per phase

(DPC)

load efficiency

minimizes output bulk capacitors and system cost

(CHL8203/13/14)

custom configuration

operation

October 13, 2011 | FINAL | V1.3

CRITICAL

signal

Digital Multi-Phase Buck Controller

DESCRIPTION

The CHL8212/13/14 are dual-loop digital multi-phase

buck controllers and the CHL8203 is a single-loop digital

multiphase buck controller designed for GPU voltage

regulation. Dynamic voltage control is provided by

registers which are programmed through I2C and then

selected using a 3-bit parallel bus for fast access.

The CHL8203/12/13/14 include IR Efficiency Shaping

Technology to deliver exceptional efficiency at minimum

cost across the entire load range. IR Dynamic Phase

Control adds/drops active phases based upon load current

and can be configured to enter 1-phase operation and

diode emulation mode automatically or by command.

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

proprietary non-linear digital PWM algorithms, minimizes

output bulk capacitors and Multiple Time Programmable

(MTP) storage saves pins and enables a small package size.

Device configuration and fault parameters are easily

defined using the IR Digital Power Design Center (DPDC)

GUI and stored in on-chip MTP.

The CHL8203/12/13/14 provides extensive OVP, UVP, OCP

and OTP fault protection and the CHL8203/13/14 includes

thermistor based temperature sensing with VRHOT signal.

The CHL8203/12/13/14 includes numerous features like

differentiation, truly simplifying VRD design and enabling

fastest time-to-market (TTM) with “set-and-forget”

methodology.

PIN DIAGRAM

VRRDY1

VRRDY2

RCSM

VPGM

RCSP

VSEN

VRTN

RRES

TSEN

V18A

Figure 1: CHL8213/14 Package Top View

CHL8214

CHL8213

40 Pin 6x6 QFN

CHL8213/14

CHL8203/12/13/14

Top View

41 GND

RCSP_L2

RCSM_L2

VCC

VSEN_L2

VRTN_L2

PWM_L2

PWM4

PWM3

PWM2

PWM1

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CHL8203-00CRT Summary of contents

Page 1

... October 13, 2011 | FINAL | V1.3 Digital Multi-Phase Buck Controller DESCRIPTION The CHL8212/13/14 are dual-loop digital multi-phase buck controllers and the CHL8203 is a single-loop digital multiphase buck controller designed for GPU voltage regulation. Dynamic voltage control is provided by registers which are programmed through I2C and then selected using a 3-bit parallel bus for fast access ...

Page 2

... RCSM 20 VCC VPGM 19 PWM3 VSEN 18 PWM2 VRTN 17 PWM1 RRES SMB_CLK 16 V18A 29 GND 15 SMB_DAT VRRDY 14 CHL8203/12/13/14 Tape & Reel Qty Part Number 3000 CHL8203-00CRT 3000 CHL8203-xxCRT 3000 CHL8212-00CRT 3000 CHL8212-xxCRT 3000 CHL8213-00CRT 3000 CHL8213-xxCRT 3000 CHL8214-00CRT 3000 CHL8214-xxCRT ...

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