NXP Semiconductors KIT34704AEPEVBE, KITUSBI2CEVME User Manual
Freescale Semiconductor
User’s Guide
Document Number: KT34704AUG
Rev. 1, 6/2008
KIT34704AEPEVBE 8-Channel Evaluation
Board
Table of Contents
1 Kit Contents / Packing List . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 2
2 Important Notice . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 3
3 Introduction . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 4
4 Required Equipment . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 6
5 EVB Setup Configuration Diagram . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 7
6 KIT34704AEPEVBE Schematic . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 8
7 KITUSBI2CEVME Schematic . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 9
8 KIT34704AEPEVBE - Using Hardware . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 11
9 KITUSBI2CEVME - Using Hardware. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 13
10 KIT34704EPEVBE Graphical User Interface. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 15
11 KIT34704AEPEVBE Board Layout . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 21
12 KITUSBI2CEVME Board Layout . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 29
13 KIT34704AEPEVBE Bill of Material. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 34
14 KITUSBI2CEVME Bill of Material . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 36
15 References . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 37
16 Revision History . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 38
© Freescale Semiconductor, Inc., 2008. All rights reserved.
1 Kit Contents / Packing List
• KIT34704AEPEVBE
• KITUSBI2CEVME - USB to I2C bridge board for controlling PMIC
• USB A-B Cable
• 4-pin female to female I2C communication cable
• CD34704A
Kit Contents / Packing List
KIT34704AEPEVBE 8-Channel Evaluation Board, Rev. 1
Freescale Semiconductor 2
2 Important Notice
Freescale provides the enclosed product(s) under the following conditions:
This evaluation kit is intended for use of ENGINEERING DEVELOPMENT OR EVALUATION PURPOSES ONLY. It
is provided as a sample IC pre-soldered to a printed circuit board to make it easier to access inputs, outputs, and
supply terminals. This EVB may be used with any development system or other source of I/O signals by simply
connecting it to the host MCU or computer board via off-the-shelf cables. This EVB is not a Reference Design and is
not intended to represent a final design recommendation for any particular application. Final device in an application
will be heavily dependent on proper printed circuit board layout and heat sinking design as well as attention to supply
filtering, transient suppression, and I/O signal quality.
The goods provided may not be complete in terms of required design, marketing, and or manufacturing related
protective considerations, including product safety measures typically found in the end product incorporating the
goods. Due to the open construction of the product, it is the user's responsibility to take any and all appropriate
precautions with regard to electrostatic discharge. In order to minimize risks associated with the customers
applications, adequate design and operating safeguards must be provided by the customer to minimize inherent or
procedural hazards. For any safety concerns, contact Freescale sales and technical support services.
Should this evaluation kit not meet the specifications indicated in the kit, it may be returned within 30 days from the
date of delivery and will be replaced by a new kit.
Freescale reserves the right to make changes without further notice to any products herein. Freescale makes no
warranty, representation or guarantee regarding the suitability of its products for any particular purpose, nor does
Freescale assume any liability arising out of the application or use of any product or circuit, and specifically disclaims
any and all liability, including without limitation consequential or incidental damages. “Typical” parameters can and
do vary in different applications and actual performance may vary over time. All operating parameters, including
“Typical”, must be validated for each customer application by customer’s technical experts.
Freescale does not convey any license under its patent rights nor the rights of others. Freescale products are not
designed, intended, or authorized for use as components in systems intended for surgical implant into the body, or
other applications intended to support or sustain life, or for any other application in which the failure of the Freescale
product could create a situation where personal injury or death may occur.
Should Buyer purchase or use Freescale products for any such unintended or unauthorized application, Buyer shall
indemnify and hold Freescale and its officers, employees, subsidiaries, affiliates, and distributors harmless against
all claims, costs, damages, and expenses, and reasonable attorney fees arising out of, directly or indirectly, any claim
of personal injury or death associated with such unintended or unauthorized use, even if such claim alleges that
Freescale was negligent regarding the design or manufacture of the part.Freescale™ and the Freescale logo are
trademarks of Freescale Semiconductor, Inc. All other product or service names are the property of their respective
owners. © Freescale Semiconductor, Inc. 2008
Important Notice
KIT34704AEPEVBE 8-Channel Evaluation Board, Rev. 1
Freescale Semiconductor 3
3 Introduction
This Evaluation Board demonstrates the capability of the MC34704A as a multi-channel
power management IC (PMIC) meant to address power management needs for various
multimedia application microprocessors. It provides 8 independent voltages through a
terminal block connector for an easier out-of-the-box evaluation. A single terminal block
connector for input power supply allows the user to supply the board with either a
external DC power supply or a Li-Ion battery to fully evaluate the performance
accordingly.
The KIT34704AEPEVBE has the ability to program the switching frequency of
regulators 1 through 5 as well as the default soft start timing for all regulators during
startup by changing few external components. All other features can be programmed
via I2C communication using a standard 100mils 4-pin header to communicate with
either the USB-I2C bridge included in this package or with any other I2C communication
device preferred by the user.
Introduction
3.1 EVB Features
• Input voltage operation range from 2.7V to 5.5V
• 8 independent output voltages, accessible through terminal blocks.
• Capable to be programmed via I2C
• On/Off push button
• Programable Switching frequency for REG1-5 by changing external components
• Programable default soft start for all regulators by changing external components
• 100mils 4-pin standard header connector for I2C communication
• Small Board Size (6.2cm x 6.2cm)
3.2 MC34704A Device Description/Features
• Input voltage operation range from 2.7 to 5.5V
• 8 -DC/DC switching regulators with +/-2% output voltage accuracy
• Capable of operating at up to 2.0 MHz switching frequency I2C programmability
• Output under voltage and over voltage detection for each regulator
• Over current limit detection and short circuit protection for each regulator
• Thermal limit detection for each regulator, except REG7
• Integrated Compensation for REG1, REG3, REG6 and REG8
•5μA maximum shutdown current (All regulators are off, 5.5V VIN)
• True Cut-off on all of the boost and buck-boost regulators.
KIT34704AEPEVBE 8-Channel Evaluation Board, Rev. 1
Freescale Semiconductor 4
3.3 USB to I2C Board Features
• Provides an LED for USB Power Status and JB8 Communication Status
• “B” type USB interface connector
• 4 pin connector for the I2C Interface (SDA, SCL, 5V and GND)
•I2C Level Shifter IC to allow communication with 5V or 3.3V devices
• For more information please refer to KITUSBI2CEVME Documentation
Introduction
KIT34704AEPEVBE 8-Channel Evaluation Board, Rev. 1
Freescale Semiconductor 5
4 Required Equipment
Minimum required equipment:
• Power supply (Select One):
– 2.7V to 5.5V
– 1 cell Li/Ion/Polymer (2.7 to 4.2V)
– 5.0V USB supply or AC wall adapter
• USB enabled Computer with Windows XP or higher.
• CD contains a Graphical User Interface (GUI) allowing control of all PMIC Features
through I
2
C communication.
Required Equipment
KIT34704AEPEVBE 8-Channel Evaluation Board, Rev. 1
Freescale Semiconductor 6
PC GUI
(USB PORT)
USB Cable
Type A-B
(Shielded)
Power Supply
(3.5V @ 5A)
KITUSBI2CEVME
I2C Communication
KIT34704AEPEBVE
LOAD 2
LOAD 5
LOAD 4
LOAD 3
LOAD 8
LOAD 1
LOAD 6
LOAD 7
34704A
MC908JB8JDWE
5 EVB Setup Configuration Diagram
EVB Setup Configuration Diagram
Freescale Semiconductor 7
Figure 1. EVB Setup Configuration Diagram
KIT34704AEPEVBE 8-Channel Evaluation Board, Rev. 1
A
Expose Pad is connected to PGND
BT5U
1
2
3
4
5
6
7
8
9
10
11
12
13
14
15161718192021222324252627
28
29
30
31
32
33
34
35
36
37
38
39
40
41
42
43
44
45
46
47
48
49
50
51
52
53
54
55
56
BT4D
COMP5
PVIN4
SW4D
VOUT4
SW4U
BT4U
FB4
COMP4
BT3
PVIN3
SW3
VOUT3
FB3
SS
FREQ
FB8
BT8
VOUT8
SW8
SW1VGVOUT1
BT1
SCL
SDA
RST_B
COMP7
VREF7
FB7
DRV7
VOUT7
FB6
BT6
SW6
VOUT6
AGND
VIN
VDDI
LION
ONOFF_B
BT2U
COMP2
FB2
BT2D
PVIN2
SW2D
VOUT2
SW2U
SW5U
VOUT5
SW5D
PVIN5
BT5D
FB5
34704
VDDIVDDI
VIN
V2
VO4
PGND
VO3
PGND
VO8PGND
VO1
PGND VG
VO7
PGND
VIN
VDDI
AGND
VO6
PGND
VO2PGNDVO5
I2C Interface
4C4
4C5
4C3
3C1
4C1
4R24R1
4RB
4R3
4C2
4COUT
4CIN
3CIN
3COUT
3R1
3RB
RSS1
RSS2
RF1
RF2
8C1A
8R1
8RB
8COUT
LED1
LED2
LED3
LED4
LED5
8RS
8CIN
D1
1CVG
1CIN
1C1
1COUT
5C5
5C4
5C3
5C1
5R2
5R1
5RB
5R3
5C2
5COUT
5CIN
2C52C4
2C3
2C1
2R2
2R1 2RB
2R3
2C2
2COUT
2CIN
RON
SW1
CVDDI
6CIN
6R1
6RB
6COUT
7R1
7RB
7C2
7R3
7C1
7R2
7C3
7COUT
7CIN
1
2
3
4
JP2
RRST
LEDRST
CVIN
JP3
8RBT
8C1B
D8
FET7
6RBT
6C1B
6C1A
L5
L2
L4
L3
L8
L1
L6
L7
D6
8R2 8R3
8RO
6RO
VIN
VIN
VIN
VIN
VIN
VIN
VIN
10n
10n
5p
10n
150p
62k
36k
18k
680
120p
22u
10u
10u
22u
5.1k
5.1k
NP
NP
NP
NP
10n
8.2k
330
22u
13
10u
47u
10u
1u
22u
1u
1u
10p
1n
33k
68k
15k
2.7k
68p
22u
10u
1u
1u
10p
1n
33k
68k
15k
2.7k
68p
22u
10u
470k
1u
10u
8.2k
330
22u
110k
13k
56p
2.2k
300p
15k
22p
22u
10u
100k
1u
0
0
0
010n
4.7u
4.7u
4.7u
4.7u
4.3u
3.0u
4.3u
4.3u
00
0
0
6 KIT34704AEPEVBE Schematic
KIT34704AEPEVBE Schematic
Freescale Semiconductor 8
KIT34704AEPEVBE 8-Channel Evaluation Board, Rev. 1
Figure 2. KIT34704AEPEVBE Schematic
7 KITUSBI2CEVME Schematic
KITUSBI2CEVME Schematic
KIT34704AEPEVBE 8-Channel Evaluation Board, Rev. 1
Freescale Semiconductor 9
Figure 3. KITUSBI2CEVME Schematic 1
KITUSBI2CEVME Schematic
KIT34704AEPEVBE 8-Channel Evaluation Board, Rev. 1
Freescale Semiconductor 10
Figure 4. KITUSBI2CEVME Schematic 2
KIT34704AEPEVBE - Using Hardware
1
2
3
4
JP2
1
2
3
4
26
25
8 KIT34704AEPEVBE - Using Hardware
The KIT34704AEPEVBE operates with a single power supply from 2.7 to 5.5V and is
controlled via I
2
C with the help of an USB-I2C bridge. Applying Input power supply will
start up the VG regulator, set switching frequency and soft start and finally turn on
REG2, REG3 and REG4 in stand alone mode, all other features can only be controlled
via I2C.
8.1 Jumper Connections
Use a jumper on J3 to connect pins 3-4 vertically to set LION to VIN.
Figure 5. LION set to VIN
Pin 2,3 and 4 of JP2 corresponds to SDA,SCL, and GND signals respectively of the I2C
communication, connect to the USB-I2C bridge for programming.
KIT34704AEPEVBE 8-Channel Evaluation Board, Rev. 1
Freescale Semiconductor 11
Figure 6. I
2
C Communication connector
8.2 Input/Output power supply terminal blocks
REG 2
REG 5
REG 4
REG 3
REG 8
REG 1
REG 6
REG7
VDDI / VIN
A three-pin terminal block serves as the input terminal for the main power between 2.7
and 5.5V to operate the KIT34704AEPEVBE, as well as providing access to the
reference voltage VDDI generated by the MC34704A to supply configuration voltages.
Regulator 1 uses a three-pin terminal block to provide GND reference and VO1 output
at 5V with a maximum current capability of 500mA. It also provide access to the internal
Gate voltage VG for monitoring purposes
Regulator 2 through 8 use a two-pin terminal block to provide each GND reference and
VOx respectively. To learn how to configure the output voltage on each regulator, please
refer to the MC34704 datasheet that can be found at www.freescale.com
The following diagram shows each of the terminals and its respective output voltage
identificator.
KIT34704AEPEVBE - Using Hardware
8.3 Starting up the KIT34704AEPEVBE
To Start working with the KIT34704AEPEVBE, provide an input voltage between 2.7V
and 5.5V connecting the (+) probe to the VIN terminal and the (-) probe to the GDN
terminal on the Input power terminal block. Turn on the power supply and the LEDRST
should turn on.
At this moment the three stand alone regulators (REG2, REG3 and REG4) should be
providing pre-configured output voltage. To operate the rest of the MC34704A functions,
it is necessary to use I
Section 11 will discuss how to interact with the KIT34704AEPEVBE using the Graphical
User Interface developed by freescale to fully operate the MC34704A.
Freescale Semiconductor 12
KIT34704AEPEVBE 8-Channel Evaluation Board, Rev. 1
Figure 7. Input/Output terminal blocks
2
C communication.
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