MAX1586AEVKIT [MAXIM]
2.6V to 5.5V Single-Supply Operation;
| 型号： | MAX1586AEVKIT |
| 厂家： | 
MAXIM INTEGRATED PRODUCTS |
| 描述： | 2.6V to 5.5V Single-Supply Operation |
| 文件： | 总14页 (文件大小：635K) |
| 中文： | 中文翻译 | 下载： | 下载PDF数据表文档文件 |
19-3138; Rev 1; 1/07
MAX1586A Evaluation Kit/
Evaluation System
General Description
Features
♦ 2.6V to 5.5V Single-Supply Operation
The MAX1586A evaluation kit (EV kit) is a fully assembled
and tested surface-mount PCB that evaluates the
MAX1586A power-management IC (PMIC). The IC is opti-
mized for microprocessor-based applications. The
MAX1586A integrates three high-performance synchro-
nous step-down DC-DC power supplies, three low-
dropout (LDO) regulators, a battery backup supply, and
various power-management functions.
♦ Seven-Output Power Supply
3.3V at 1.3A (VCC_I/O)
2.5V at 900mA (VCC_MEM)
0.7 to 1.475V at 500mA (VCC_CORE) Software
Adjustable
1.3V at 35mA (VCC_PLL)
1.1V at 40mA (VCC_SRAM)
0 to 3V at 35mA (VCC_USIM) Software Adjustable
Backup Battery Supply (30mA)
The MAX1586A evaluation system (EV system) consists
of a MAX1586A evaluation kit (EV kit) and a companion
Maxim CMAXQUSB board.
♦ 1MHz Switching Frequency
♦ On-Board Manual Reset Switch
♦ Optional On-Board Power-Sequencing Circuitry
♦ Power-OK Output
♦ SMBus/I2C-Compatible 2-Wire Serial Interface
♦ Easy-to-Use Menu-Driven Software
The Maxim SMBus™ interface board (CMAXQUSB) allows
a PC to use its USB port to emulate an SMBus/I2C-
compatible 2-wire interface. Windows® 98SE/2000/XP-
compatible software provides a professional interface
to exercise the features of the MAX1586A. The program
is menu driven and offers a graphical user interface
(GUI) with control buttons and a status display.
♦ Software-Controlled Core and USIM Voltage
Adjustment
♦ Assembled and Tested
The MAX1586AEVCMAXQU includes both the EV kit and
the CMAXQUSB interface board. Order the MAX1586A
EV kit if you already have an SMBus interface.
♦ Include Windows 98SE/2000/XP-Compatible
Software
♦ Also Evaluate the MAX1586B
♦ EV System Includes USB Connectivity
Ordering Information
SMBus
INTERFACE
TYPE
TEMP IC
RANGE PACKAGE
PART
SMBus is a trademark of Intel Corp.
Windows is a registered trademark of Microsoft Corp.
0°C to
+70°C
MAX1586AEVKIT
48 Thin QFN Not included
48 Thin QFN CMAXQUSB+
0°C to
+70°C
MAX1586AEVCMAXQU
Note: The MAX1586A EV kit software is provided with the
MAX1586AEVKIT; however, the CMAXQUSB+ board is required
to interface the EV kit to the computer when using the included
software.
Component Suppliers
SUPPLIER
Central Semiconductor
Sumida USA
PHONE
FAX
WEBSITE
www.centralsemi.com
www.sumida.com
631-435-1110
847-545-6700
847-803-6100
847-297-0070
631-435-1824
847-545-6720
847-390-4405
847-699-1194
TDK Corp.
www.component.tdk.com
www.tokoam.com
TOKO America, Inc.
Note: Indicate that you are using the MAX1586A when contacting these component suppliers.
________________________________________________________________ Maxim Integrated Products
1
For pricing, delivery, and ordering information, please contact Maxim/Dallas Direct! at
1-888-629-4642, or visit Maxim’s website at www.maxim-ic.com.
MAX1586A Evaluation Kit/
Evaluation System
Component Lists
MAX1586A EV System
MAX1586A EV Kit (continued)
DESIGNATION QTY
DESCRIPTION
PART
QTY
DESCRIPTION
MAX1586A EV kit
Serial-interface board
MAX1586AEVKIT
CMAXQUSB+
1
1
330pF 5ꢀ, 50V C0G ceramic
capacitors (0603)
C26, C28
2
TDK C1608C0G1H331J
+Denotes lead free and RoHS compliance.
270pF 5ꢀ, 50V C0G ceramic
capacitor (0603)
TDK C1608C0G1H271J
MAX1586A EV Kit
C27
D1
1
1
DESIGNATION QTY
DESCRIPTION
C1–C6
C7
0
0
0
Not installed, capacitors (0603)
Not installed, capacitor (0805)
Not installed, capacitors (0402)
Switching diode (SOT323)
Central Semiconductor CMSD4448
C8, C9, C10
J1
1
9
2 x 10 right-angle female receptacle
Jumpers, 3-pin headers
JU1–JU9
C11, C15,
C16, C17, C29,
C30, C33
10µF 20ꢀ, 6.3V X5R ceramic
capacitors (0805)
TDK C2012X5R0J106M
7
5
1
1
1
5
3.3µH, 2.66A inductor
TOKO A915AY-3R3M
L1
L2
1
1
4.7µF 20ꢀ, 6.3V X5R ceramic
capacitors (0805)
6.8µH, 1.51A inductor
TOKO A915AY-6R8M
C12, C13, C14,
C31, C32
TDK C2012X5R0J475M
10µH, 0.85A inductor
Sumida CDRH2D18/HP-100
TOKO A960AW-100M
L3
1
0
1500pF 10ꢀ, 50V X7R ceramic
capacitor (0402)
TDK C1005X7R1H152K
C18
C19
R1–R6,
R14, R15
Not installed, resistors (0603)
Not installed, resistors (0402)
0.1µF 20ꢀ, 10V X5R ceramic
capacitor (0402)
TDK C1005X5R1A104M
R7–R13,
R24, R25
0
5
R16–R20
1MΩ 5ꢀ resistors (0402)
240kΩ 1ꢀ resistors (0402)
Momentary pushbutton switch
MAX1586AETM (48-pin Thin QFN)
Shunts
PCB: MAX1586A Evaluation Kit
Software disk (CD-ROM)
“MAX1586A Evaluation Kit”
0.01µF 20ꢀ, 25V X7R ceramic
capacitor (0402)
TDK C1005X7R1E103M
C20
R21, R22, R23
3
1
1
9
1
SW1
U1
—
1.0µF 20ꢀ, 10V X5R ceramic
capacitors (0603)
TDK C1608X5R1A105M
C21–C25
—
—
1
Note: In the following sections, software-related items
are identified by bolding. Text in bold refers to items
directly from the EV kit software. Text in bold and
underlined refers to items from the Windows
98SE/2000/XP operating system.
Quick Start
Recommended Equipment
• 4.5V, 2A DC power supply
• 3.6V backup battery (optional)
• One voltmeter
• MAX1586A EV system
MAX1586A EV kit
Procedure
The MAX1586A EV kit is fully assembled and tested.
Follow the steps below to verify board operation. Do not
turn on the power supply until all connections are com-
pleted:
Maxim CMAXQUSB interface board (USB cable
included)
1) Visit the Maxim website (www.maxim-ic.com/evkit-
software) to download the latest version of the EV
kit software, 1586ARxx.ZIP.
• A user-supplied Windows 98SE/2000/XP PC with a
spare USB port
2
_______________________________________________________________________________________
MAX1586A Evaluation Kit/
Evaluation System
2) Install the MAX1586A evaluation software on your
14) Move the Core Voltage track bar located inside the
Voltage Control group box to 1V.
computer by running the INSTALL.EXE program
inside the temporary folder. The program files are
copied and icons are created in the Windows Start
menu.
15) Verify that the VCC_CORE voltage on the voltmeter
reads approximately 1V.
Detailed Description of Software
3) On the CMAXQUSB board, ensure that shunt JU1 is
in the 3.3V position.
User-Interface Panel
The user interface (Figure 1) is easy to operate; use the
mouse or press the Tab key to navigate with the arrow
keys. Each button corresponds to bits in the command
and configuration bytes. By clicking on them, the cor-
rect SMBus write operation is generated to update the
internal registers of the MAX1586A. The Interface box
4) Carefully connect the boards by aligning the
MAX1586A EV kit’s 20-pin connector with the 20-
pin header of the CMAXQUSB interface board.
Gently press them together. The two boards should
be flush against each other.
5) Ensure that a shunt is placed across pins 1-2 of
jumpers JU1–JU7.
6) Ensure that a shunt is placed across pins 2-3 of
jumpers JU8 and JU9. Do not turn on the power
until all connections are made.
7) Connect the 4.5V power supply to the pads labeled
VIN and GND on the MAX1586A EV kit board.
8) Connect the optional backup battery to the pads
labeled BKBT and GND.
9) Connect a voltmeter to the pads labeled
VCC_CORE and GND.
10) Connect the USB cable from the PC to the CMAX-
QUSB board. A Building Driver Database window
pops up in addition to a New Hardware Found
message if this is the first time this board is con-
nected to the PC. If you do not see a window that is
similar to the one described above after 30 sec-
onds, remove the USB cable from the CMAXQUSB
and reconnect it again. Administrator privileges are
required to install the USB device driver on
Windows 98SE/2000/XP. Refer to the TROU-
BLESHOOTING_USB.PDF document included with
the software if you have any problems during this
step.
11) Follow the directions of the Add New Hardware
Wizard to install the USB device driver. Choose the
Search for the best driver for your device option.
Specify the location of the device driver to be
C:\Program Files\MAX1586A (default installation
directory) by using the Browse button.
12) Turn on the DC power supply.
13) Start the MAX1586A EV kit software by opening its
icon in the Start menu. The GUI main window
appears as shown in Figure 1.
Figure 1. MAX1586A EV Kit Software Main Window
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3
MAX1586A Evaluation Kit/
Evaluation System
indicates the current Device Address, the Data
Sent/Received (the MAX1586A EV kit software only
sends) for the last read/write operation. This data is
used to confirm proper device operation.
Check the Extend checkbox to increase the core volt-
age range to 0.7V to 1.475V.
USIM Voltage Control
The USIM voltage (VCC_USIM) can be adjusted to one
of four preset voltages. Adjust the USIM Voltage slider
to select the desired voltage.
Note: Words in boldface are user-selectable features in
the software.
Core Voltage Control
The core voltage (VCC_CORE) can be adjusted in
25mV increments by adjusting the Core Voltage slider.
Alternatively, a number can be entered in the box
below the Core Voltage slider. If a number not divisible
by 0.025 is entered, the software automatically rounds
the number to the nearest 25mV increment and sends
the appropriate data to the MAX1586A.
Simple SMBus Commands
There are two methods for communicating with the
MAX1586A: through the normal user-interface panel or
through the SMBus commands available by selecting
the 2-Wire Interface Diagnostic item from the Options
pulldown menu. A display pops up that allows the
SMBus protocols, such as Read Byte, Write Byte, and
Send Byte, to be executed.
Figure 2. A Simple SMBusSendByte Operation Using the Included 2-Wire Interface Diagnostics. In this example, the software is writ-
ing data (0x13) to Device Address 0x28. The above data sequence sets the core voltage of the MAX1586A to 1.175V.
4
_______________________________________________________________________________________
MAX1586A Evaluation Kit/
Evaluation System
The SMBus dialog boxes accept numeric data in bina-
Address Selection
Jumper JU9 sets the MAX1586A slave address. The
default address is 0010 1000 (SRAD = GND). See
Table 1 for a complete list of addresses.
ry, decimal, or hexadecimal form. Hexadecimal num-
bers should be prefixed by $ or 0x. Binary numbers
must be exactly eight digits. See Figure 2 for an exam-
ple of this tool.
Note: In places where the slave address asks for an
8-bit value, it must be the 7-bit slave address of the
MAX1586A as determined by SRAD with the last bit set
to 1 for a read operation or zero for a write. Refer to the
MAX1586A data sheet for a complete list of registers
and functions.
Table 1. Shunt Settings for SMBus
Address (JU9)
MAX1586A ADDRESS
SHUNT
MAX1586A
POSITION ADDRESS PIN
BINARY
0010 1010
0010 1000
HEXADECIMAL
0x2A
1-2
VIN
2-3*
GND
0x28
Detailed Description of Hardware
*Default configuration: JU9 (2-3)
The MAX1586A EV kit is a fully assembled and tested
surface-mount PCB that evaluates the MAX1586A
PMIC. The MAX1586A integrates three high-perfor-
mance, 1MHz, synchronous step-down DC-DC power
supplies, three low-dropout regulators, and a battery
backup supply.
Sleep Mode
Jumper JU7 controls the sleep function of the
MAX1586A EV kit. Removing the shunt from JU7 allows
the sleep function to be controlled by an external signal
source connected to the SLP pad. See Table 2 for
sleep shunt positions.
The power outputs consist of a 3.3V at 1.3A I/O
(VCC_I/O) step-down output, a 2.5V at 900mA memory
(VCC_MEM) step-down output, a software-adjustable
0.7V to 1.475V at 500mA core (VCC_CORE) step-down
output, a 1.3V at 35mA phase-locked loop (VCC_PLL)
LDO, a 1.1V at 40mA SRAM (VCC_SRAM) LDO, and a
software-adjustable 0 to 3.0V at 35mA (VCC_USIM)
LDO. An additional 30mA backup battery (VCC_BATT)
output is also available.
Table 2. Sleep Selection (JU7)
SHUNT
DESCRIPTION
POSITION
1-2*
I/O and MEM DC-DC converters enabled.
I/O and MEM DC-DC converters disabled.
I/O and MEM sleep LDOs enabled.
2-3
Power-management functions include a power-OK
(POK) output, a manual reset input, multiple output-
enable inputs, a sleep function, and a reset output.
Activate the manual reset input by pressing the switch
labeled SW1.
SLP function controlled by an external signal
source.
Not installed
*Default configuration: JU7 (1-2)
Power sequencing is also available through component
placeholders R1–R6 and C1–C6. See the Optional
Power-Sequencing Circuitry section in the document
for more details.
_______________________________________________________________________________________
5
MAX1586A Evaluation Kit/
Evaluation System
Table 3. Output Enable (JU1–JU6)
Table 4. Pulse-Skipping Mode Selection
(JU8)
SHUNT
POSITION
JUMPER
DESCRIPTION
SHUNT
POSITION
DESCRIPTION
1-2*
VCC_I/O output enabled.
VCC_I/O output disabled.
VCC_CORE pulse-skipping mode disabled
(forced PWM).
2-3
JU1
1-2
(ON1)
ON1 controlled by an external signal
source.
Not installed
2-3*
VCC_CORE pulse-skipping mode enabled.
1-2*
2-3
VCC_MEM output enabled.
VCC_MEM output disabled.
*Default configuration: JU8 (2-3)
JU2
(ON2)
Adjusting the I/O Voltage
ON2 controlled by an external signal
source.
Not installed
The VCC_I/O (I/O) output voltage can be adjusted from
its default value of 3.3V. Cut the trace at R12 and install
a 0Ω resistor at R24 to set the I/O voltage to 3.0V. To
set the I/O voltage to an alternative value, cut the trace
at R12 and install resistors at R10 and R12. Use the
equation below to calculate resistor values:
1-2*
2-3
VCC_CORE output enabled.
VCC_CORE output disabled.
JU3
(ON3)
ON3 controlled by an external signal
source.
Not installed
1-2*
2-3
VCC_PLL output enabled.
VCC_PLL output disabled.
VCC_I/O
VFB1
R10 = R12
x
−1
JU4
(ON4)
ON4 controlled by an external signal
source.
Not installed
where:
1-2*
2-3
VCC_SRAM output enabled.
VCC_SRAM output disabled.
R
= 100kΩ
12
JU5
(ON5)
VCC_I/O = desired I/O voltage
= 1.25V
ON5 controlled by an external signal
source.
V
FB1
Not installed
Adjusting the MEM Voltage
1-2*
2-3
VCC_USIM output enabled.
VCC_USIM output disabled.
The VCC_MEM (MEM) output voltage can be adjusted
from its default value of 2.5V. Cut the trace at R13 and
install a 0Ω resistor at R18 to set the MEM voltage to
1.8V. To set the MEM voltage to an alternative value, cut
the trace at R13 and install resistors at R11 and R13.
Use the equation below to calculate resistor values:
JU6
(ON6)
ON6 controlled by an external signal
source.
Not installed
*Default configuration: JU1 (1-2), JU2 (1-2), JU3 (1-2), JU4 (1-2),
JU5 (1-2), JU6 (1-2)
Output Enables
Jumpers JU1–JU6 control the on/off state of the
MAX1586A EV kit VCC_I/O, VCC_MEM, VCC_CORE,
VCC_PLL, VCC_SRAM, and VCC_USIM outputs.
Removing the shunt allows the output enable function
to be controlled by an external signal source. See
Table 3 for output enable shunt positions.
VCC_MEM
VFB2
R11 = R13
x
−1
where:
R
= 100kΩ
13
VCC_MEM = desired MEM voltage
= 1.25V
V
FB2
Pulse-Skipping Mode
Jumper JU8 controls the pulse-skipping mode of the
VCC_CORE output. See Table 4 for pulse-skipping
mode shunt positions.
6
_______________________________________________________________________________________
MAX1586A Evaluation Kit/
Evaluation System
Low-Battery Detection
Optional Power-Sequencing Circuitry
The MAX1586A EV kit provides extra pads to support
power sequencing. The directions below describe the
implementation of this feature.
The MAX1586A is capable of monitoring the main bat-
tery input voltage and activating outputs when the volt-
age falls below a given threshold. The default EV kit
configuration triggers the low-battery output when the
input voltage falls below 3.6V. The dead-battery output
is triggered when the input voltage falls below 3.2V.
Monitor the outputs at the LBO and DBO pads.
1) Cut the trace at R1–R6.
2) To create an RC time delay:
Install resistors and capacitors at locations R1–R6
and C1–C6.
To alter the EV kit defaults, cut the trace at R7 and R8
and install resistors at locations R7, R8, and R9. Use
the following equations to calculate resistor values:
3) Ensure that shunts are installed across pins 1 and
2 of jumpers JU1–JU6.
Calculate component values using the equation below:
DBI
LBI
VinL
VinD
R
=
x
−1 x R
9
8
−t
R
=
n
V
V
TH
C
x In 1 −
n
in
V
inL
R = R x
−1 − R
8
7
9
LBI
where:
C = 0.1µF
n
where:
LBI = 1.0V
DBI = 1.232V
V
V
= 1.1V
TH
= battery input voltage
in
t = desired startup time
V
V
= desired low-battery detection voltage
= desired dead-battery detection voltage
inL
Using an Alternative SMBus Interface
The MAX1586A EV kit provides pads and pullup resis-
tor placeholders that allow an alternative SMBus/I2C-
compatible interface to be used. Connect the interface
through the SCL, SDA, and GND pads. Install pullup
resistors at positions R14 and R15 if required.
inD
R = 100kΩ
9
Note: The following conditions must be met:
V
V
≥ LBI (1.0V)
≥ DBI (1.232V)
inL
inD
Evaluating the MAX1586B
To evaluate the MAX1586B, replace IC U1 with a
MAX1586BETM.
_______________________________________________________________________________________
7
MAX1586A Evaluation Kit/
Evaluation System
C29
C30
10µF
10µF
VCC_I/O
GND
VCC_MEM
GND
C15
10µF
C16
10µF
VIN
VIN
R24
R25
OPEN
OPEN
R10
OPEN
R12
SHORT
R11
OPEN
R13
SHORT
VI/O
C31
4.7µF
C12
4.7µF
C13
VIN
C32
4.7µF
VIN
4.7µF
L2
6.8µH
L1
3.3µH
42
IN6
6
44
3
45
PV1
43
PG1
28
IN45
8
17
9
16
PV2
18
PG2
VIN
V1
LX1
FB1
V2
LX2
FB2
L3
VIN
VCC_CORE
10µH
19
7
32
39
IN
LX3
FB3
PV3
C7
OPEN
C11
10µF
C17
10µF
C33
10µF
GND
R7
SHORT
48
SLPIN
DBI
VIN
R8
SHORT
33
31
1
LBI
C14
4.7µF
R9
OPEN
VIN
PG3
1
2
SLP
JU7
47
SLP
VIN
3
VCC_PLL
VCC_SRAM
VCC_USIM
GND
27
29
V4
V5
1
2
C23
1.0µF
JU8
14
35
15
U1
PWM3
SRAD
LBO
VIN
3
VI/O
1
2
C22
1.0µF
JU9
MAX1586A
R20
3
1MΩ
41
20
LBO
POK
MR
V6
C21
1.0µF
VI/O
RAMP
C18
1500pF
VI/O
R19
1MΩ
DBO
SCL
SDA
24
11
12
13
DBO
POK
R18
1MΩ
SCL
SDA
SCL
VI/O
SDA
VCC_BATT
VIN
R17
1MΩ
5
4
V7
RSO
C24
1.0µF
36
37
RSO
VIN
D1
R16
1MΩ
BKBT
GND
MR
ON1
46
BKBT
GND
C25
1.0µF
ON2
25
C2
ON3
34
C3
ON4
26
ON5
30
C5
ON6
40
REF
22
CC1
2
CC2
10
CC3
38
BYP
23
21
SW1
C20
0.01µF
C1
OPEN
C4
OPEN
C6
OPEN
R21
240kΩ
1%
R23
240kΩ
1%
OPEN
OPEN
OPEN
VI/O
C8
C10
OPEN
OPEN
C26
330pF
C28
330pF
J1
R1
R2
SHORT
R3
SHORT
R4
SHORT
R5
SHORT
R6
SHORT
3
VI/O
VIN
3
VIN
3
R15
OPEN
SHORT
1
J1-1
J1-2
1
2
3
1
2
VIN
VIN
3
SDA
J1-3
J1-5
J1-7
J1-9
J1-4
JU2
JU5
2
1
2
R14
OPEN
R22
240kΩ
1%
J1-6
C19
0.1µF
JU1
JU4
VIN
VIN
SCL
J1-8
C9
OPEN
1
2
1
2
3
C27
270pF
J1-10
J1-12
J1-14
J1-16
J1-18
J1-19
JU3
JU6
J1-11
J1-13
J1-15
J1-17
J1-20
Figure 3. MAX1586A EV Kit Schematic
8
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MAX1586A Evaluation Kit/
Evaluation System
Figure 4. MAX1586A EV Kit Component Placement Guide—Component Side
_______________________________________________________________________________________
9
MAX1586A Evaluation Kit/
Evaluation System
Figure 5. MAX1586A EV Kit PCB Layout—Component Side
10 ______________________________________________________________________________________
MAX1586A Evaluation Kit/
Evaluation System
Figure 6. MAX1586A EV Kit PCB Layout—Inner Layer 2
______________________________________________________________________________________ 11
MAX1586A Evaluation Kit/
Evaluation System
Figure 7. MAX1586A EV Kit PCB Layout—Inner Layer 3
12 ______________________________________________________________________________________
MAX1586A Evaluation Kit/
Evaluation System
Figure 8. MAX1586A EV Kit PCB Layout—Solder Side
______________________________________________________________________________________ 13
MAX1586A Evaluation Kit/
Evaluation System
Figure 9. MAX1586A EV Kit Component Placement Guide—Solder Side
Revision History
Pages changed at Rev 1: 1–5, 7, 10–14
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.
14 ____________________Maxim Integrated Products, 120 San Gabriel Drive, Sunnyvale, CA 94086 408-737-7600
© 2007 Maxim Integrated Products
is a registered trademark of Maxim Integrated Products, Inc.
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Power Supply Support Circuit, Adjustable, 1 Channel, BICMOS, 7 X 7 MM, 0.80 MM HEIGHT, MO-220, TQFN-48
MAXIM
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