MAX17480EVKIT+ Maxim Integrated Products, MAX17480EVKIT+ Datasheet

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MAX17480EVKIT+

Manufacturer Part Number
MAX17480EVKIT+
Description
Power Management Modules & Development Tools EVAL KIT FOR MAX17480
Manufacturer
Maxim Integrated Products
Datasheet
1.MAX17480EVKIT.pdf (22 pages)

Specifications of MAX17480EVKIT+

Lead Free Status / RoHS Status
Lead free / RoHS Compliant
The MAX17480 evaluation kit (EV kit) demonstrates the
high-power, triple-output notebook CPU application cir-
cuit for the AMD
core supplies. This DC-DC converter steps down high-
voltage batteries and/or AC adapters, generating preci-
sion, low-voltage CPU cores. The MAX17480 EV kit
meets the AMD mobile SVI CPU’s transient voltage
specification, power-good signaling, voltage-regulator
thermal monitoring (VRHOT), and power-good output
(PWRGD). The MAX17480 EV kit consists of one dual-
phase high-current switched-mode power supply
(SMPS) for the CPU core (VCORE0) and one 4A internal
switch SMPS for the northbridge (NB) core. The two
CPU core SMPSs run 180° out-of-phase for true inter-
leaved operation, minimizing input capacitance.
Output voltages are dynamically changed through a
2-wire serial interface, allowing the switching regulators
to be individually programmed to different voltages. A
programmable slew-rate controller enables controlled
transitions between VID codes. SVI also allows each
regulator to be individually set into a low-power pulse-
skipping state.
Soft-start limits the inrush current, and passive shut-
down discharges the output voltage back down to zero
without any negative ring. The MAX17480 EV kit
includes active voltage positioning with adjustable gain,
reducing power dissipation and bulk output capaci-
tance requirements. The MAX17480 includes latched
output undervoltage fault protection, overvoltage fault
protection for the CPU cores, and thermal-overload pro-
tection. It also includes a voltage-regulator power-good
(PWRGD) output.
This fully assembled and tested PCB provides a digital-
ly adjustable 0 to 1.550V output-voltage range (7-bit on-
board DAC) from a 7V to 24V battery input range. Each
phase of the core current SMPS operates at 300kHz
switching frequency and delivers up to 18A output cur-
rent for a total of 36A. The 4A internal switch SMPS
operates at 600kHz switching frequency and delivers
up to 4A. The EV kit has superior line- and load-tran-
sient response. The EV kit also includes Windows
2000-, Windows XP
software that provides a simple graphical user interface
(GUI) for exercising the features of the MAX17480.
19-4649; Rev 0; 5/09
AMD is a registered trademark of Advanced Micro Devices, Inc.
Windows, Windows XP, and Windows Vista are registered trademarks of Microsoft Corp.
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.
®
________________________________________________________________ Maxim Integrated Products
mobile serial VID interface (SVI) CPU
®
-, and Windows Vista
General Description
®
-compatible
®
MAX17480 Evaluation Kit
♦ Dual/Triple-Output, Fixed-Frequency Controller
♦ AMD Mobile SVI-Compliant Serial Interface
♦ 0 to 1.550V Output-Voltage Range (7-Bit On-Board
♦ Core SMPS
♦ NB SMPS
♦ Power-Good (PWRGD) and Thermal-Fault
♦ System Power-OK (PGD_IN) Input
♦ Undervoltage Fault Protection
♦ 40-Pin Thin QFN Package (5mm x 5mm)
♦ Lead(Pb)-Free and RoHS Compliant
♦ Fully Assembled and Tested
+ Denotes lead(Pb)-free and RoHS compliant.
MAX17480EVKIT+
DAC)
(VRHOT) Output Indicators
Split or Combinable Outputs Detected at
True Out-of-Phase Operation Reduces Input
Transient Phase Repeat Reduces Output
Dynamic Phase Selection Optimizes Active/
Programmable AC and DC Droop
7V to 24V Input-Voltage Range
36A Load-Current Capability (18A Each Phase)
Accurate Current Balance and Current Limit
300kHz Switching Frequency (Per Phase)
Output Overvoltage Fault Protection
4A Load-Current Capability for Northbridge
600kHz Switching Frequency for Northbridge
PART
Power-Up
Capacitance
Capacitance
Sleep Efficiency
Core
Ordering Information
TYPE
EV Kit
Features
1

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MAX17480EVKIT+ Summary of contents

Page 1

... System Power-OK (PGD_IN) Input ♦ Undervoltage Fault Protection ♦ 40-Pin Thin QFN Package (5mm x 5mm) ♦ Lead(Pb)-Free and RoHS Compliant ♦ Fully Assembled and Tested PART ® MAX17480EVKIT+ ® -compatible + Denotes lead(Pb)-free and RoHS compliant. Features Ordering Information TYPE ...

Page 2

MAX17480 Evaluation Kit DESIGNATION QTY DESCRIPTION CORE0SENSE_H, CORE0SENSE_L, CORE1SENSE_H CORE1SENSE_L, 9 Test points NBSENSE_H, PGD_IN, PWRGD, SHDN, VRHOT 10µF ±20%, 25V X5R ceramic capacitors (1210) C1–C4 4 TDK C3225X7R1E106M AVX 12103D106M Taiyo Yuden TMK325BJ106MM Not installed, polymer capacitors C5, C7 ...

Page 3

DESIGNATION QTY DESCRIPTION USB series-B right-angle J1 1 PC-mount receptacle Not installed, dual-row ( 10-pin header J4 Scope probe jacks JU1, JU3–JU6 5 3-pin headers JU2 1 5-pin header JU7, JU8 2 2-pin headers ...

Page 4

MAX17480 Evaluation Kit DESIGNATION QTY DESCRIPTION 3.3V, 120mA linear regulator (5 SC70 Maxim MAX8511EXK33+T (Top Mark: AEI) 2.5V, 120mA linear regulator (5 SC70 Maxim MAX8511EXK25+T (Top Mark: ADV) SUPPLIER AVX Corp. Central Semiconductor Corp. Fairchild Semiconductor ...

Page 5

Recommended Equipment • MAX17480 EV kit (USB cable included) • 24V, > 100W power supply, battery, or note- book AC adapter • DC bias power supply • One load capable of sinking 40A • One ...

Page 6

MAX17480 Evaluation Kit Detailed Description of Software The main window of the evaluation software (Figure 1) displays Address to Send, Data to Send, Last Address Sent, and Last Data Sent status. In addition, the GUI allows the user to select ...

Page 7

Detailed Description of Firmware The on-board switches (SW1–SW4) allow the user to per- form four different predetermined high-speed I Detailed descriptions of each dynamic output test follow. The sequence for the dynamic output test assigned to SW1 is shown in ...

Page 8

MAX17480 Evaluation Kit Table 3. SW3 Dynamic Output Test with High-Speed I STEP ADDRESS 1 0xC4 2 N/A 3 0xC8 N/A = Not applicable. Table 4. SW4 Dynamic Output Test with High-Speed I STEP ADDRESS 1 N/A 2 N/A 3 ...

Page 9

By default, the MAX17480 serial interface is controlled by U2 through the jumper settings on JU5 (pins 1-2) and JU6 (pins 1-2). To directly control the MAX17480 Table 5. Output-Voltage VID DAC Codes OUTPUT SVID[6:0] SVID[6:0] VOLTAGE (V) 000_0000 1.5500 ...

Page 10

MAX17480 Evaluation Kit Table 6. Boot-Voltage Codes SVC SVD startup, the MAX17480 slews the target for all three DACs from ground to the boot voltage set by the SVC and SVD ...

Page 11

Table 7. Jumper JU4 Function (SHDN) SHUNT POSITION 1-2 Connected to U2, pin 58 2-3 Connected to GND Connected to VDD through Not installed 100k System Power-Good Input (PGD_IN) After the SMPS outputs reach the boot voltage, the MAX17480 switches ...

Page 12

MAX17480 Evaluation Kit Offset and Current-Limit Setting for The offset and current-limit settings of the NB SMPS can be set by the ILIM3 pin setting. Table 10 shows the ILIM3 pin voltage levels and the corresponding settings for the offset ...

Page 13

Figure 2a. MAX17480 EV Kit Schematic (Sheet ______________________________________________________________________________________ MAX17480 Evaluation Kit 13 ...

Page 14

MAX17480 Evaluation Kit Figure 2b. MAX17480 EV Kit Schematic (Sheet ______________________________________________________________________________________ ...

Page 15

Figure 3. MAX17480 EV Kit Component Placement Guide—Component Side ______________________________________________________________________________________ MAX17480 Evaluation Kit 15 ...

Page 16

MAX17480 Evaluation Kit Figure 4. MAX17480 EV Kit PCB Layout—Component Side 16 ______________________________________________________________________________________ ...

Page 17

Figure 5. MAX17480 EV Kit PCB Layout—Internal Layer 2 ______________________________________________________________________________________ MAX17480 Evaluation Kit 17 ...

Page 18

MAX17480 Evaluation Kit Figure 6. MAX17480 EV Kit PCB Layout—Internal Layer 3 18 ______________________________________________________________________________________ ...

Page 19

Figure 7. MAX17480 EV Kit PCB Layout—Internal Layer 4 ______________________________________________________________________________________ MAX17480 Evaluation Kit 19 ...

Page 20

MAX17480 Evaluation Kit Figure 8. MAX17480 EV Kit PCB Layout—Internal Layer 5 20 ______________________________________________________________________________________ ...

Page 21

Figure 9. MAX17480 EV Kit PCB Layout—Solder Side ______________________________________________________________________________________ MAX17480 Evaluation Kit 21 ...

Page 22

... Maxim cannot assume responsibility for use of any circuitry other than circuitry entirely embodied in a Maxim product. No circuit patent licenses are implied. Maxim reserves the right to change the circuitry and specifications without notice at any time. 22 ____________________Maxim Integrated Products, 120 San Gabriel Drive, Sunnyvale, CA 94086 408-737-7600 © 2009 Maxim Integrated Products ...

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