Texas Instruments EV2400 User manual

User's Guide
SLUU446A–June 2011–Revised September 2011
EV2400 EVM Interface Board
This user's guide describes the function and operation of the EV2400 evaluation module interface board.
A complete description, as well as the bill of materials and schematic are included.
Contents
1 Introduction .................................................................................................................. 2
2 Interfaces ..................................................................................................................... 2
3 EV2400 Bill of Materials, Component Placement, Schematic ........................................................ 5
List of Figures
1 EV2400 Ports................................................................................................................ 3
2 Top Assembly ............................................................................................................... 8
3 Bottom Assembly ........................................................................................................... 9
4 Board Layer 1.............................................................................................................. 10
5 Board Layer 2.............................................................................................................. 11
6 Solder Mask 1.............................................................................................................. 12
7 Solder Mask 2.............................................................................................................. 13
8 Silkscreen................................................................................................................... 14
9 Schematic, Page 1 ........................................................................................................ 15
10 Schematic, Page 2 ........................................................................................................ 16
11 Schematic, Page 3 ........................................................................................................ 17
List of Tables
1 Ordering Information........................................................................................................ 2
1
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Introduction www.ti.com
1 Introduction
The EV2400 EVM interface board enables an IBM-compatible or other type PC (with the required driver
for its particular platform) to communicate with the Texas Instruments SMBus, I2C, HDQ, or DQ interface
gas gauges via a Universal Serial Bus (USB) port. In addition to this board, PC software is required to
interpret the gas gauge data to complete the evaluation system.
1.1 Features
•Fully powered from the USB port
•Optional 5-V port for powering high power voltage drivers (future upgrade)
•Complete interface between the USB and SMBus, I2C, and HDQ (8/16) interfaces using a simple API
•Expansion port for future upgrades
1.2 Kit Contents
•EV2400 circuit module
•Standard USB cable
1.3 Ordering Information
Table 1. Ordering Information
EVM Part Number
EV2400
2 Interfaces
The EV2400 interfaces are described in the following table. The reference designators on the circuit board
and the functions are also listed.
Reference Designator Function Details
Terminal block for connecting to a target
Port 1: SMB SMBus Interface Port device
Terminal block for connecting to a target
Port 2: I2C I2C Interface Port device
Terminal block for connecting to a target
Port 3: HDQ HDQ and DQ Interface Ports device
Port 4 Single Wire Port Future expansion port
Port 5 GPIO Port Future expansion port
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www.ti.com Interfaces
2.1 Overview
The EV2400 ports are shown in Figure 1.
Figure 1. EV2400 Ports
NOTE: The additional power input 5-V port on the EV2400 must not be connected in normal
operation. Normal operation uses power from the USB port.
2.2 EV2400 Controller
The EV2400 controller is an MSP430F5529 running at 4 MHz. The controller firmware is stored in flash
memory and is executed by the core at power-up.
The controller communicates with target device(s) through either: a 2-wire SMBus communication port, a
1-wire HDQ port, or a 2-wire EEPROM I2C port. The 2-wire SMBus communication port supports both
SMBus and I2C protocols. CRC-8 checksum verification for the data packets prevents data corruption over
the USB.
2.3 USB Interface (USB)
The interface board connects to a USB port (version 1.1 or later) on a host computer and is powered from
the port. All communication over the USB is human Interface device (HID) class. Drivers are built into
Windows ®and most of the operating systems.
2.4 HDQ Interface (HDQ)
This interface allows a host computer to interact with a slave or target device through the 1-wire HDQ
interface. The ports are labeled with the corresponding signal names above each port connector. Connect
the signal and a ground reference (VSS) to a target device.
Pin Name Description
3.1 VSS Ground return/reference for HDQ interface.
3.2 VOUT 3 Optional voltage output (future expansion)
3.3 SDA HDQ 1-wire interface. Pulled up to variable pullup voltage with a 20-kΩ
resistor. Uses bus acceleration in positive direction to allow for larger
pullup.
3.4 VOUT 4 Optional voltage output (future expansion)
3
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2.5 I2C Interface (I2C)
This interface allows a host computer to interact with I2C interfaces, such as a battery monitor device and
EEPROM through a 2-wire I2C interface. Connect the data, clock, and a ground reference (VSS) to a
target device.
Pin Name Description
2.1 VSS Ground return/reference for I2C interface.
2.2 SCL I2C clock. Uses level translation. Pulled up to variable pullup voltage with a
20-kΩresistor. Uses bus acceleration in positive direction to allow for
larger pullup.
2.3 SDA I2C data. Uses level translation. Pulled up to variable pullup voltage with a
20-kΩresistor. Uses bus acceleration in positive direction to allow for
larger pullup.
2.4 VOUT 2 Optional voltage output (future expansion)
2.6 SMBus Interface (SMBus)
This interface allows a host computer to interact with an SMBus interface device such as a battery monitor
device through a 2-wire SMBus interface. Connect the data, clock, and a ground reference (VSS) to a
target device.
Pin Name Description
1.1 VSS Ground return/reference for SMBus
interface.
1.2 SCL SMBus clock. Pulled up to variable pullup
voltage with a 20-kΩresistor. Uses bus
acceleration in positive direction to allow
for larger pullup.
1.3 SDA SMBus data. Pulled up to variable pullup
voltage with a 20-kΩresistor. Uses bus
acceleration in positive direction to allow
for larger pullup.
1.4 VOUT 1 Optional voltage output (future expansion)
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www.ti.com EV2400 Bill of Materials, Component Placement, Schematic
3 EV2400 Bill of Materials, Component Placement, Schematic
This chapter includes the bill of materials, component placement on the circuit board, and schematic for
the EV2400 EVM.
3.1 Bill of Materials (BOM)
Count Reference Design Value Description Size Part Number Manufacturer
31 C1, C2, C3, C4, 0.1 µF Capacitor, 0603 STD Any
C5, C6, C7, C11, Ceramic, 25 V,
C13, C15, C16, X7R, 20%
C18, C19, C20,
C21, C22, C23,
C24, C25, C26,
C27, C28, C29,
C30, C31, C32,
C33, C34, C35,
C38, C39
1 C12 4.7 µF Capacitor, 0805 STD Any
Ceramic, 25 V,
X7R, 20%
1 C36 2.2 nF Capacitor, 0603 STD Any
Ceramic, 25 V,
X7R, 20%
2 C37, C41 220 pF Capacitor, 0603 STD Any
Ceramic, 50 V,
C0G, 5%
1 C40 470 nF Capacitor, 0603 STD Any
Ceramic, 25 V,
X7R, 20%
2 C42, C43 12 pF Capacitor, 0603 STD Any
Ceramic, 50 V,
C0G, 10%
2 C8, C10 2.2 µF Capacitor, 0603 STD Any
Ceramic, 25 V,
X7R, 20%
3 C9, C14, C17 10 µF Capacitor, 3216 293D106X0010A Vishay
Tantalum, 10 µF, 2T
10 V, 20%
6 D1, D2, D3, D4, GL05T Diode, TVS SOT23 GL05T General
D5, D6 diode, Low
Capacitance
3 D7, D8, D9 SSF-LXH305GD- Diode. LED, 2.6 0.250 x0.250 SSF- Lumex
TR V, 25 mA inch LXH305GD-TR
1 J1 67068-1000 Connector, USB 0.47 x 0.67 inch 67068-1000 Molex
Upstream (Type
B)
4 J2, J3, J4, J5 22-05-3041 Header, Friction 0.400 x 0.500 22-05-3041 Molex
Lock Ass'y, 4-pin inch
Right Angle,
1 J6 PEC12DBAN Header, Right 0.100 inch x 12 PEC12DBAN Sullins
Angle, Male x 2
2x12-pin, 100mil
spacing (12-pin
strip), right-angle
1 J7 RAPC 722 Connector, 0.57 x 0.35 inch RAPC 722 Switchcraft
2.1mm, DC Jack
w/Switch, TH
1 J8 22-23-2041 Header, 4-pin 0.250 x 0.400 22-23-2041 Molex
Friction Lock, inch
100-mil spacing
0 JP1, JP2, JP3, DNP Header, 2-pin, 0.100 inch x 2 PEC02SAAN Sullins
JP4, JP5, JP6 100-mil spacing
5
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Count Reference Design Value Description Size Part Number Manufacturer
1 JP7 PEC02SAAN Header, 2-pin, 0.100 inch x 2 PEC02SAAN Sullins
100-mil spacing
6 Q1, Q2, Q3, Q4, BSS223PW MOSFET, Pch, SOT323 BSS223PW Infineon
Q5, Q6 –20 V, –0.39 A,
1.2 Ohm
3 Q7, Q8, Q9 2N7002W MOSFET, Nch, SOT323 [SC70] 2N7002W Diodes
60 V, 115 mA
1 R1 33 kΩResistor, Chip, 0603 STD Any
1/16 W, 5%
4 R10, R11, R13, 20 kΩResistor, Chip, 0603 STD Any
R14 1/16 W, 5%
2 R2, R3 33 ΩResistor, Chip, 0603 STD Any
1/16 W, 5%
1 R26 470 ΩResistor, Chip, 0603 STD Any
1/16 W, 1%
1 R27 51 kΩResistor, Chip, 0603 STD Any
1/16 W, 1%
1 R28 100 kΩResistor, Chip, 0603 STD Any
1/10 W, 1%
3 R39, R40, R41 200 ΩResistor, Chip, 0603 STD Any
1/16 W, 5%
1 R4 1.5 kΩResistor, Chip, 0603 STD Any
1/16 W, 5%
1 R42 47 kΩResistor, Chip, 0603 STD Any
1/16 W, 5%
3 R43, R44, R45 10 kΩResistor, Chip, 0603 STD Any
1/10 W, 1%
3 R46, R47, R48 100 kΩResistor, Chip, 0603 STD Any
1/16 W, 5%
21 R5, R6, R7, R12, 10 kΩResistor, Chip, 0603 STD Any
R15, R16, R19, 1/16 W, 5%
R20, R22, R24,
R25, R29, R30,
R31, R32, R33,
R34, R35, R36,
R37, R38
6 R8, R9, R17, R18, 100 ΩResistor, Chip, 0603 STD Any
R21, R23 1/16 W, 5%
1 SW1 EVQPSD02K Switch, SMD 6.1 mm x 4.0 EVQPSD02K Panasonic
Light-Touch, mm
Side Operation
1 TP1 5VUSB Test Point, Red, 0.100 x 0.100 5000 Keystone
Thru Hole Color inch
Keyed
1 TP2 5VPLUG Test Point, Red, 0.100 x 0.100 5000 Keystone
Thru Hole Color inch
Keyed
1 TP3 3.3V Test Point, Red, 0.100 x 0.100 5000 Keystone
Thru Hole Color inch
Keyed
1 TP4 GND Test Point, 0.100 x 0.100 5001 Keystone
Black, Thru Hole inch
Color Keyed
1 U1 MSP430F5529IP IC, Mixed Signal TQFP-80 MSP430F5529IP TI
N Microcontroller N
6 U10, U11, U12, TPS73601DBV IC, Cap-Free, SOT23-5 TPS73601DBV TI
U13, U15, U18 NMOS, 400mA
LDO Regulator
with Reverse
Current
Protection.
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Count Reference Design Value Description Size Part Number Manufacturer
1 U2 TPS2550DBV IC, SOT-23-6 TPS2550DBV TI
Power-
Distribution
Switch,
Current-Limited
1 U3 TPS76333DBV IC, Micro-Power SOT23-5 TPS76333DBV TI
150-mA LDO
Regulator
3 U4, U5, U6 ST2329AQTR IC, 2-bit dual 10-QFN ST2329AQTR ST
supply level
translator
without direction
control pin
1 U7 TPS79650DCQ IC, SOT223-6 TPS79650DCQ TI
Ultralow-Noise,
High PSRR Fast
RF, LDO, 1A, 5V
1 U8 TPS2113APW IC, Auto SO8 TPS2113APW TI
Switching Power
Mux, Rds 84
milli Ohm, 1A.
2 U9, U14 ISL90842UIV1427 IC, Quad TSSOP ISL90842UIV142 Intersil
Z Digitally 7Z
Controlled
Potentiometers
1 Y1 4 MHz Crystal, SMT 0.484 x 0.190 ATS040SM CTS
Quartz Crystal inch
1—PCB HPA500 Any
1 Plastic, 115574-501-000 PACTEC
Enclosure,
Silkscreened,
Two Custom end
panels, screws
Notes: 1. These assemblies are ESD sensitive, ESD precautions shall be observed.
2. These assemblies must be clean and free from flux and all contaminants. Use of no clean flux is not acceptable.
3. These assemblies must comply with workmanship standards IPC-A-610 Class 2.
4. Ref designators marked with an asterisk ('**') cannot be substituted. All other components can be substituted with
equivalent manufacturers'components.
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3.2 EV2400 Component Placement
Figure 2. Top Assembly
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Figure 3. Bottom Assembly
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Figure 4. Board Layer 1
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