Rainbow-electronics MAX17480 Bedienungsanleitung PDF herunterladen (Seite 1)

General Description

The MAX17480 is a triple-output, step-down, fixed-

frequency controller for AMD’s serial VID interface (SVI)

CPU and northbridge (NB) core supplies. The MAX17480

consists of two high-current SMPSs for the CPU cores

and one 4A internal switch SMPS for the NB core. The

two CPU core SMPSs run 180° out-of-phase for true

interleaved operation, minimizing input capacitance.

The 4A internal switch SMPS runs at twice the switching

frequency of the core SMPS, reducing the size of the

external components.

The MAX17480 is fully AMD SVI compliant. Output volt-

ages are dynamically changed through a 2-wire SVI,

allowing the SMPSs to be individually programmed to

different voltages. A slew-rate controller allows con-

trolled transitions between VID codes and controlled

soft-start. SVI also allows each SMPS to be individually

set into a low-power pulse-skipping state.

Transient phase repeat improves the response of the

fixed-frequency architecture, reducing the total output

capacitance for the CPU core. A thermistor-based tem-

perature sensor provides a programmable thermal-fault

output (VRHOT).

The MAX17480 includes output overvoltage protection

(OVP), undervoltage protection (UVP), and thermal pro-

tection. When any of these protection features detect a

fault, the controller shuts down. True differential current

sensing improves current limit and load-line accuracy.

The MAX17480 has an adjustable switching frequency,

allowing 100kHz to 600kHz operation per core SMPS,

and twice that for the NB SMPS.

Applications

Mobile AMD SVI Core Supplies

Multiphase CPU Core Supplies

Voltage-Positioned, Step-Down Converters

Notebook/Desktop Computers

Features

o Dual-Output Fixed-Frequency Core Supply

Controller

Split or Combinable Outputs Detected at

Power-Up

Dynamic Phase Selection Optimizes

Active/Sleep Efficiency

Transient Phase Repeat Reduces Output

Capacitance

True Out-of-Phase Operation Reduces Input

Capacitance

Programmable AC and DC Droop

Accurate Current Balance and Current Limit

Integrated Drivers for Large Synchronous-

Rectifier MOSFETs

Programmable 100kHz to 600kHz Switching

Frequency

4V to 26V Battery Input Voltage Range

o 4A Internal Switch Northbridge SMPS

2.7V to 5.5V Input Voltage Range

2x Programmable Switching Frequency

75mΩ/40mΩ Power Switches

o ±0.5% V

OUT

Accuracy over Line, Load, and

Temperature

o AMD SVI-Compliant Serial Interface with

Switchable Address

o 7-Bit On-Board DAC: 0 to +1.550V Output Adjust

Range

o Integrated Boost Switches

o Adjustable Slew-Rate Control

o Power-Good (PWRGD) and Thermal-Fault

(VRHOT) Outputs

o System Power-OK (PGD_IN) Input

o Overvoltage, Undervoltage, and Thermal-Fault

Protection

o Voltage Soft-Startup and Passive Shutdown

o < 1µA Typical Shutdown Current

MAX17480

AMD 2-/3-Output Mobile Serial

VID Controller

________________________________________________________________

Maxim Integrated Products

Ordering Information

19-4443; Rev 0; 2/09

For pricing, delivery, and ordering information, please contact Maxim Direct at 1-888-629-4642,

or visit Maxim’s website at www.maxim-ic.com.

PART TEMP RANGE PIN-PACKAGE

MAX17480GTL+ -40°C to +105°C 40 TQFN-EP*

Denotes a lead(Pb)-free/RoHS-compliant package.

EP = Exposed pad.

Pin Configuration appears at end of data sheet.

1 2 3 4 5 6 ... 47 48

Inhaltsverzeichnis

Seite 1 - VID Controller

General DescriptionThe MAX17480 is a triple-output, step-down, fixed-frequency controller for AMD’s serial VID interface (SVI)CPU and northbridge (NB)

Seite 2

MAX17480AMD 2-/3-Output Mobile SerialVID Controller10 ______________________________________________________________________________________ELECTRICAL

Seite 3

MAX17480AMD 2-/3-Output Mobile SerialVID Controller______________________________________________________________________________________ 11Typical Op

Seite 4

MAX17480AMD 2-/3-Output Mobile SerialVID Controller12 ______________________________________________________________________________________Typical Op

Seite 5

MAX17480AMD 2-/3-Output Mobile SerialVID Controller______________________________________________________________________________________ 13Typical Op

Seite 6

CORE SMPS 1-PHASE TRANSIENTPHASE REPEATMAX17480 toc202µs/div1.2V1.5A13.5A12V0VOUT150mV/divILX110A/divLX110V/divVIN = 12V ILOAD1 = 1.5A TO 13.5A TO 1.5

Seite 7

Typical Operating Characteristics (continued)(Circuit of Figure 2, VIN = 12V, VDD= VCC= 5V, VDDIO= 2.5V, TA = +25°C, unless otherwise noted.)CORE SMPS

Seite 8

MAX17480AMD 2-/3-Output Mobile SerialVID Controller16 ______________________________________________________________________________________Pin Descri

Seite 9

MAX17480AMD 2-/3-Output Mobile SerialVID Controller______________________________________________________________________________________ 17Pin Descri

Seite 10

MAX17480AMD 2-/3-Output Mobile SerialVID Controller18 ______________________________________________________________________________________Pin Descri

Seite 11

MAX17480AMD 2-/3-Output Mobile SerialVID Controller______________________________________________________________________________________ 19Pin Descri

Seite 12

MAX17480AMD 2-/3-Output Mobile SerialVID Controller2 _______________________________________________________________________________________ABSOLUTE M

Seite 13

MAX17480AMD 2-/3-Output Mobile SerialVID Controller20 ______________________________________________________________________________________Pin Descri

Seite 14

MAX17480AMD 2-/3-Output Mobile SerialVID Controller______________________________________________________________________________________ 21COMPONENTV

Seite 15

MAX17480AMD 2-/3-Output Mobile SerialVID Controller22 ______________________________________________________________________________________MAX17480NL

Seite 16

MAX17480AMD 2-/3-Output Mobile SerialVID Controller______________________________________________________________________________________ 23MAX17480NL

Seite 17

MAX17480AMD 2-/3-Output Mobile SerialVID Controller24 ______________________________________________________________________________________DAC1UVLORE

Seite 18

MAX17480Detailed DescriptionThe MAX17480 consists of a dual fixed-frequency PWMcontroller with external switches that generate the sup-ply voltage for

Seite 19

MAX17480AMD 2-/3-Output Mobile SerialVID Controller26 ______________________________________________________________________________________Transient

Seite 20

MAX17480AMD 2-/3-Output Mobile SerialVID Controller______________________________________________________________________________________ 27where VCS=

Seite 21

MAX17480AMD 2-/3-Output Mobile SerialVID Controller28 ______________________________________________________________________________________Nominal Ou

Seite 22

MAX17480AMD 2-/3-Output Mobile SerialVID Controller______________________________________________________________________________________ 29of a downw

Seite 23

MAX17480AMD 2-/3-Output Mobile SerialVID Controller_______________________________________________________________________________________ 3PARAMETER

Seite 24

MAX17480AMD 2-/3-Output Mobile SerialVID Controller30 ______________________________________________________________________________________depending

Seite 25

MAX17480AMD 2-/3-Output Mobile SerialVID Controller______________________________________________________________________________________ 31When using

Seite 26

MAX17480AMD 2-/3-Output Mobile SerialVID Controller32 ______________________________________________________________________________________where LESL

Seite 27

MAX17480AMD 2-/3-Output Mobile SerialVID Controller______________________________________________________________________________________ 33Combined-M

Seite 28

MAX17480AMD 2-/3-Output Mobile SerialVID Controller34 ______________________________________________________________________________________For automa

Seite 29

MAX17480AMD 2-/3-Output Mobile SerialVID Controller______________________________________________________________________________________ 35ShutdownWh

Seite 30

MAX17480AMD 2-/3-Output Mobile SerialVID Controller36 ______________________________________________________________________________________Fault Prot

Seite 31

MAX17480AMD 2-/3-Output Mobile SerialVID Controller______________________________________________________________________________________ 37Adaptive d

Seite 32

MAX17480AMD 2-/3-Output Mobile SerialVID Controller38 ______________________________________________________________________________________Offset and

Seite 33

MAX17480AMD 2-/3-Output Mobile SerialVID Controller______________________________________________________________________________________ 39Core SMPS

Seite 34

MAX17480AMD 2-/3-Output Mobile SerialVID Controller4 _______________________________________________________________________________________ELECTRICAL

Seite 35

MAX17480AMD 2-/3-Output Mobile SerialVID Controller40 ______________________________________________________________________________________When using

Seite 36

MAX17480AMD 2-/3-Output Mobile SerialVID Controller______________________________________________________________________________________ 41Core Power

Seite 37

MAX17480AMD 2-/3-Output Mobile SerialVID Controller42 ______________________________________________________________________________________select the

Seite 38

MAX17480AMD 2-/3-Output Mobile SerialVID Controller______________________________________________________________________________________ 43The capaci

Seite 39

MAX17480AMD 2-/3-Output Mobile SerialVID Controller44 ______________________________________________________________________________________Bus Not Bu

Seite 40

MAX17480AMD 2-/3-Output Mobile SerialVID Controller______________________________________________________________________________________ 45Command By

Seite 41

MAX17480AMD 2-/3-Output Mobile SerialVID Controller46 ______________________________________________________________________________________Maximum In

Seite 42

MAX17480AMD 2-/3-Output Mobile SerialVID Controller______________________________________________________________________________________ 475) Make th

Seite 43

MAX17480AMD 2-/3-Output Mobile SerialVID ControllerMaxim cannot assume responsibility for use of any circuitry other than circuitry entirely embodied

Seite 44

MAX17480AMD 2-/3-Output Mobile SerialVID Controller_______________________________________________________________________________________ 5ELECTRICAL

Seite 45

MAX17480AMD 2-/3-Output Mobile SerialVID Controller6 _______________________________________________________________________________________ELECTRICAL

Seite 46 - Layout Procedure

MAX17480AMD 2-/3-Output Mobile SerialVID Controller_______________________________________________________________________________________ 7ELECTRICAL

Seite 47 - Figure 15. PCB Layout Example

MAX17480AMD 2-/3-Output Mobile SerialVID Controller8 _______________________________________________________________________________________ELECTRICAL

Seite 48

MAX17480AMD 2-/3-Output Mobile SerialVID Controller_______________________________________________________________________________________ 9ELECTRICAL

Kommentare zu diesen Handbüchern

Keine Kommentare

Rainbow-electronics MAX17480 Bedienungsanleitung Seite 1

Stöbern Sie online oder laden Sie Bedienungsanleitung nach Sensoren Rainbow-electronics MAX17480 herunter. Rainbow Electronics MAX17480 User Manual Benutzerhandbuch

Inhaltsverzeichnis

Kommentare zu diesen Handbüchern

Rainbow-electronics MAX17480 Bedienungsanleitung Seite 1

Stöbern Sie online oder laden Sie Bedienungsanleitung nach Sensoren Rainbow-electronics MAX17480 herunter. Rainbow Electronics MAX17480 User Manual Benutzerhandbuch

Inhaltsverzeichnis

Kommentare zu diesen Handbüchern

Verwandte Produkte und Handbücher für Sensoren Rainbow-electronics MAX17480