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UCD90120
User Manual
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Texas Instruments UCD90120, UCD90124 User Manual

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User's Guide
SLVU347–December 2009
Evaluation Module for UCD90120 and UCD90124
This User’s Guide describes the evaluation modules (EVM) for the UCD90120 (UCD90120EVM) and UCD90124 (UCD90124EVM). The EVM contains evaluation and reference circuitry for the UCD90120 and UCD90124. UCD90120 and UCD90124 are advanced power system controllers containing sequencing, monitoring, fan control and many other power supply system support features.
Contents
1.1 Features ............................................................................................................. 2
1.2 Applications ......................................................................................................... 2
2 Quick Start ................................................................................................................... 3
2.1 Test Setup .......................................................................................................... 3
2.2 EVM Layout View .................................................................................................. 4
2.3 EVM Block Diagram ............................................................................................... 5
3 UCD90120/4 EVM GUI Setup ............................................................................................. 6
3.1 UCD90120/4 EVM GUI Installation .............................................................................. 6
3.2 UCD90120/4 EVM GUI Operation ............................................................................... 7
4 General Use Features ...................................................................................................... 9
4.1 EVM Input/Output Connectors and Switches .................................................................. 9
4.2 EVM LEDS ........................................................................................................ 10
4.3 EVM Test Points .................................................................................................. 11
4.4 EVM Test Jumpers ............................................................................................... 13
5 Description ................................................................................................................. 15
5.1 Communication Interfaces ....................................................................................... 15
5.2 Power .............................................................................................................. 15
5.3 Test/Debug and Status .......................................................................................... 16
5.4 Digital I/O Terminations .......................................................................................... 16
5.5 Analog Monitor Inputs ............................................................................................ 16
5.6 Local Voltage Rails ............................................................................................... 17
5.7 External Temperature Sensor .................................................................................. 17
5.8 Input Current Monitoring ......................................................................................... 21
5.9 Closed Loop Voltage Margining ................................................................................ 25
5.10 Fan Interface ...................................................................................................... 30
6 Bill of Materials ............................................................................................................. 31
7 Layout Guidelines, EVM Schematic, and Assembly Drawings ...................................................... 37
7.1 Layout Guidelines ................................................................................................ 37
7.2 EVM Schematic ................................................................................................... 37
7.3 Assembly Drawings .............................................................................................. 37
2 UCD90120/4 EVM View.................................................................................................... 4
3 UCD90120/4 EVM Block Diagram........................................................................................ 5
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List of Figures
List of Tables
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Description
2 EVM LED’s ................................................................................................................. 10
3 EVM Test Points........................................................................................................... 11
4 EVM Jumpers.............................................................................................................. 13
5 Local Rail Nominal Output Voltages .................................................................................... 17
6 UCD90120/4EVM Bill of Materials ..................................................................................... 31
1 Description
The UCD90120 and UCD90124 EVM provides many sophisticated power supply system controller application capabilities. The EVM allows direct PMBus (power management bus) communication with the UCD90120 and UCD90124 via an onboard USB interface. This interface allows direct control and feedback with the UCD90120 and UCD90124 when using the TI-Fusion-Digital-Power-Designer-Graphical-User-Interface.
1.1 Features
• General features
– Single 12V supply input – 12 rail sequencing – 13 analog monitors – Single fan control interface – Status LEDs on all GPIOs – USB-PMBus interface for communication
• Orderable options
– UCD90124EVM 12 channel sequencer and monitor with fan control – UCD90120EVM 12 channel sequencer and monitor
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1.2 Applications
• Industrial / ATE
• Telecommunications and Networking Equipment
• Servers and Storage Systems
• Any System Requiring Sequencing and Monitoring of Multiple Power Rails
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12V
Power
Supply
UCD90120/4EVM
J1
D56
J2
J3
FAN
- +
J66 J9 J77
J74 J73
J18
U4
UCD90120/
UCD90124
S1 S10
S2
S4
S6
S8
S3
S5
S7
S9
JTAG PMBUS
USB
EXPANSION
FAULT INJECTION
12VINPUT
ADDRESS
RESET LEDENABLE
VR5 - VR12
EVR5 - EVR12
VR1 – VR4
EVR1 – EVR4
PCwithGUI
USBCABLE
FAN
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2 Quick Start
2.1 Test Setup
Figure 1 shows a typical test setup for UCD90120/4EVM. All that is required is a 12V (500mA for
UCD90120EVM or 2000mA for UCD90124EVM running a fan) wall adapter/laptop power supply (see J1 BOM description for receptacle size) and a PC. The USB-EVM cable is provided with the EVM.
Quick Start
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Figure 1. Typical Test Setup
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3
USB
J 3D 56
J 77 EXT PMBUS
J 74 PWMTEST ACCESS
J 73 GPIOTEST ACCESS
R 186 TEMP SIM POT
RAIL5 -12 FAULT & CONFIG
RAIL 5 -12 INT/EXTMON CONFIG
RAIL 3 ,4 INT/EXT/IMON & MARGINCONFIG
RAIL 1 ,2 INT/EXT/TMON & MARGINCONFIG
LOCAL 3 .3 V
12 VINPUT
(SCREWJACK)
12 VINPUT
DC ADAPTERJACK)
J9 JTAG
J 66 FAN
S 10 STAT LEDENABLE
UCD 90120
FAN CONFIG
PBRST & ADDRESS
GPICONFIG
Quick Start
2.2 EVM Layout View
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Figure 2. UCD90120/4 EVM View
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UCD 90120
/
UCD 90124
GPIO
PMBUS
MON
V 33
FPWM /GPIO
RESET
PWM / GPI
V 33D
ON
LOCAL
RAILSVR
1- 4
FBx
ENx
5VBUS
ExtENoutputs
ExtMON
1- 4
15 VMax
3 P 3V
USB -
PMBUS
EN 1 - 4
5 VBUS
SUPPLY
CurrentMonitor
MON 3 only
2V/ A
ON
3
1
MON 1 -4
2
1
FPWM 1 - 4
PCB Temp
Monitor
MON 2 only
T(C)=100 *V -50
VR 1
Margin
RAILS
1-4
LOCAL
RAILSVR
5- 12
ENx
5VBUS
ExtENoutputs
ExtMON
5- 12
5VMax .
3 P 3V
EN 5 - 12
ON
MON 5 -12
2
1
RAILS 5 -12
FAULT
INJECTION
UVOV
FANPWM
LEVELSHIFTER
/DRIVER
PULLUP
/
DOWN
SELECT
PWM 1
PULLUP
SELECT
FANTACH
LEVELSHIFTER
FPWM 5
FANINTERFACE
3 P3 V
PWM /GPI
3 P 3V
GPI 1 -4
GPISTATUS
INRUSH
LIMITER
12VBUS
5VBUS
3 .3V
SUPPLY
L3P 3V
3P 3 V
V 33D
12 -3 .3V
SUPPLY
3P 3 V_USB
POWER
V33 FB
FLTR
V 33A
1
2
1
6
V33 D
MON 13
ADDRSENSx
JTAG
USB
USB
HOST
USB
3. 3V
LDO
3P 3V _USB
PWR
MON
BUS
SWITCH
EXP
PMBUS
CTRL
ALRT
USB -PMBUS
JTAG
EXP
GPIO
LED
ENABLE
FPWM
GPIO
12VIN
TACH
IN
PWM
OUT
12 VBUS
FANTEMP SIM
EVR 12 ONLY
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2.3 EVM Block Diagram
Quick Start
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Figure 3. UCD90120/4 EVM Block Diagram
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UCD90120/4 EVM GUI Setup
3 UCD90120/4 EVM GUI Setup
3.1 UCD90120/4 EVM GUI Installation
The UCD90120 and UCD90124 EVMs use the Texas Instruments Fusion Digital Power Designer graphical user interface (GUI) which may be downloaded from the following web site:
http://focus.ti.com/docs/toolsw/folders/print/fusion_digital_power_designer.html
Place the TI-Fusion-Digital-Power-Designer-zip file in a known location on the PC. Unzip the TI-Fusion-Digital-Power-Designer-zip file.
Double click the unzipped TI-Fusion-Digital-Power-Designer-exe file. Proceed through the installation by accepting the installer prompts and the license agreement. Accept the GUI suggested default PC installation locations to complete the install.
Once the GUI completes the installation it will start. The first time the GUI is launched on a particular PC the user may be prompted to select a device. Choose UCD9xxx. Afterwards, the GUI may be closed.
Note that the TI-Fusion-Digital-Power-Designer v1.6.105 was used for the examples to be shown later in the document.
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3.2 UCD90120/4 EVM GUI Operation
The EVM comes pre-loaded with a 12 rail default project that sequences the EVM rails on at power up. It is a good idea to export the default project to a file on the PC prior to making changes.
3.2.1 Launch TI-Fusion-Digital-Power-Designer
Navigate to the location where the Fusion GUI is installed and (Start, All Programs, Texas Instruments Fusion Digital Power Designer, Fusion Digital Power Designer) and start it. A window similar to the following will appear.
UCD90120/4 EVM GUI Setup
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UCD90120/4 EVM GUI Setup
Most of the GUI control features are available from the Configure window. Monitor and Status information is available from the respective buttons on the GUI lower left. A typical Monitor window is shown below.
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4 General Use Features
4.1 EVM Input/Output Connectors and Switches
Table 1. EVM Input/Output Connectors and Switches
Connector/Switch Label Description
J1 12V INPUT 12V DC jack J2 12V INPUT 12V screw jack
J9 JTAG JTAG Connector J66 FAN Fan interface connector J73 GPIO TESTACCESS GPIO expansion J74 PWM TEST ACCESS PWM expansion J77 PMBUS PMBus expansion
J3 USB IN USB input connector
S1 RESET Push button reset
S10 STAT LED Status LED enable switch
S2 FAULT – MON5 MON5 fault switch
S4 FAULT – MON6 MON6 fault switch
S6 FAULT – MON7 MON7 fault switch
S8 FAULT – MON8 MON8 fault switch
S3 FAULT – MON9 MON9 fault switch
S5 FAULT – MON10 MON10 fault switch
S7 FAULT – MON11 MON11 fault switch
S9 FAULT – MON12 MON12 fault switch
R186 TEMP MON Fan temperature simulator
General Use Features
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General Use Features
4.2 EVM LEDS
LED Color Label Description
D5 RED 5V 5VBUS ON indicator
D9 RED V33D UCD90120/4 power ON D28 RED ALERT PMBus Alert D29 GREEN CTRL PMBus Control D56 GREEN USB ON USB attached
D8 AMBER GPI1 GPI1 input HIGH D10 AMBER GPI2 GPI2 input HIGH D12 AMBER GPI3 GPI3 input HIGH D13 AMBER GPI4 GPI4 input HIGH D30 GREEN GPIO1 GPIO1 HIGH D32 GREEN GPIO2 GPIO2 HIGH D34 GREEN GPIO3 GPIO3 HIGH D36 GREEN GPIO4 GPIO4 HIGH D38 GREEN GPIO13 GPIO13 HIGH D47 GREEN GPIO14 GPIO14 HIGH D49 GREEN GPIO15 GPIO15 HIGH D40 GREEN GPIO16 GPIO16 HIGH D42 GREEN GPIO17 GPIO17 HIGH D44 GREEN GPIO18 GPIO18 HIGH D46 GREEN GPIO19 GPIO19 HIGH D48 GREEN GPIO20 GPIO20 HIGH D54 GREEN GPIO21 GPIO21 HIGH D55 GREEN GPIO22 GPIO22 HIGH D31 AMBER FPWM1 GPIO5 HIGH D33 AMBER FPWM2 GPIO6 HIGH D35 AMBER FPWM3 GPIO7 HIGH D37 AMBER FPWM4 GPIO8 HIGH D39 AMBER FPWM5 GPIO9 HIGH D41 AMBER FPWM6 GPIO10 HIGH D43 AMBER FPWM7 GPIO11 HIGH D45 AMBER FPWM8 GPIO12 HIGH D14 RED VR1 VR1 ON D15 RED VR2 VR2 ON D16 RED VR3 VR3 ON D17 RED VR4 VR4 ON D18 RED VR5 VR5 ON D19 RED VR6 VR6 ON D20 RED VR7 VR7 ON D21 RED VR8 VR8 ON D22 RED VR9 VR9 ON D23 RED VR10 VR10 ON D24 RED VR11 VR11 ON D25 RED VR12 VR12 ON
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Table 2. EVM LED’s
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4.3 EVM Test Points
TP Color Label
TP1 RED 12VBUS TP2 RED 5VBUS TP3 WHT L3P3V
TP4 WHT V33D TP11 BLK GND TP17 BLK GND
TP6 WHT ADDRSENS0
TP7 ORG ADDRSENS1 TP37 BLK GND TP43 BLK GND
TP8 YEL EVR1 TP13 YEL EVR2 TP16 YEL EVR3 TP22 YEL EVR4 TP28 YEL EVR5 TP34 YEL EVR6 TP46 YEL EVR7 TP52 YEL EVR8 TP29 YEL EVR9 TP35 YEL EVR10 TP47 YEL EVR11 TP53 YEL EVR12 TP14 WHT VR1 LOAD TEMP MON TP18 WHT VR1 CURRENT MON
TP9 WHT VR1 TP12 WHT VR2 TP19 WHT VR3 TP20 WHT VR4 TP36 WHT VR5 TP38 WHT VR6 TP39 WHT VR7 TP40 WHT VR8 TP54 WHT VR9 TP56 WHT VR10 TP61 WHT VR11 TP62 WHT VR12 TP55 BLK GND TP24 WHT GPIO1 TP25 WHT GPIO2 TP26 WHT GPIO3 TP27 WHT GPIO4 TP32 WHT GPIO13 TP66 WHT GPIO14 (SCI-TX) TP65 WHT GPIO15 (SCI-RX) TP44 WHT GPIO16 TP48 WHT GPIO17
General Use Features
Table 3. EVM Test Points
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General Use Features
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Table 3. EVM Test Points (continued)
TP Color Label
TP33 WHT GPIO19 TP57 WHT GPIO18 TP45 WHT GPIO20 TP49 WHT GPIO21 TP58 WHT GPIO22 TP10 YEL MON1 TP15 YEL MON2 TP21 YEL MON3 TP23 YEL MON4 TP30 YEL MON5 TP41 YEL MON6 TP50 YEL MON7 TP59 YEL MON8 TP31 YEL MON9 TP42 YEL MON10 TP51 YEL MON11 TP60 YEL MON12
TP5 YEL MON13 TP63 BLK GND TP64 YEL TEMP POT WIPER TP67 WHT LA CLOCK TP68 SM-SLV GND TP69 SM-SLV GND TP70 SM-SLV GND TP71 SM-SLV GND TP72 SM-SLV GND TP73 SM-SLV GND
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4.4 EVM Test Jumpers
The EVM will be equipped with shunts on the jumper positions identified in the Default Pin Position below. Shunts can be moved and removed as required during use.
Jumper Default Pin Label Description
Position
J8 3.3VUSB 3.3V USB J78 1-2 EEPROM SCL J79 1-2 EEPROM SDA J69 1-2 PWM PU Fan PWM pullup/pulldown select J70 1-2 Fan PWM select (fast or slow) FPWM5 J67 1-2 Fan tach input or slow PWM output J72 2-3 TACH PU Fan tach input pullup/pulldown select J71 EVR12 Fan temperature simulator pot to MON12 J68 2-3 Fan type select (4 or 2/3 wire) J10 1-2 GPI1 General purpose input #1 J14 1-2 GPI2 General purpose input #2 J16 1-2 GPI3 General purpose input #3 J17 1-2 GPI4 General purpose input #4 J34 2-3 GPIO1 GPIO1 (enable #1) pullup/pulldown J35 2-3 GPIO2 GPIO2 (enable #2) pullup/pulldown J36 2-3 GPIO3 GPIO3 (enable #3) pullup/pulldown J37 2-3 GPIO4 GPIO4 (enable #4) pullup/pulldown J44 2-3 GPIO13 GPIO13 (enable #5) pullup/pulldown J45 2-3 GPIO16 GPIO16 (enable #6) pullup/pulldown J50 2-3 GPIO17 GPIO17 (enable #7) pullup/pulldown J51 2-3 GPIO18 GPIO18 (enable #8) pullup/pulldown J56 2-3 GPIO19 GPIO19 (enable #9) pullup/pulldown J57 2-3 GPIO20 GPIO20 (enable #10) pullup/pulldown J62 2-3 GPIO21 GPIO21 (enable #11) pullup/pulldown J63 2-3 GPIO22 GPIO22 (enable #12) pullup/pulldown J75 2-3 GPIO14 GPIO14 pullup/pulldown J76 2-3 GPIO15 GPIO15 pullup/pulldown J18 1-2,7-8 PM ADDR PMBus address J11 TCK JTAG TCK
J6 TDI JTAG TDI J12 TDO JTAG TDO
J7 TMS JTAG TMS
J4 1-2 L3.3V LDO 3.3V to board 3.3V J13 12VB Local 12VBUS-V33D regulator
J5 1-2 Local or LDO 3.3V J19 HVMON EVR1 monitor scaling J23 HVMON EVR2 monitor scaling J27 HVMON EVR3 monitor scaling J31 HVMON EVR4 monitor scaling J20 1-2 1L 1E MON1 source select J24 3-4 E2 L2 T1 MON2 source select J28 3-4 E3 L3 C1 MON3 source select J32 1-2 4L 4E MON4 source select
General Use Features
Table 4. EVM Jumpers
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General Use Features
Jumper Default Pin Label Description
J42 1-2 5L 5E MON5 source select J48 1-2 6L 6E MON6 source select J54 1-2 7L 7E MON7 source select J60 1-2 8L 8E MON8 source select J43 1-2 9L 9E MON9 source select J49 1-2 10L 10E MON10 source select J55 1-2 11L 11E MON11 source select J61 1-2 12L 12E MON12 source select J15 1-2 MON13 MON 13 source select J26 1-2 C1 VR1 output load J22 RC MRG1 VR1 margining feedback J25 RC MRG2 VR2 margining feedback J30 RC MRG3 VR3 margining feedback J33 RC MRG4 VR4 margining feedback J21 1-2 5V VR1, VR2 5VBUS input J29 1-2 5V VR3, VR4 5VBUS input J38 1-2 R1_EN VR1 enable J39 1-2 R2_EN VR2 enable J40 1-2 R3_EN VR3 enable J41 1-2 R4_EN VR4 enable J46 1-2 R5_EN VR5 enable J47 1-2 R6_EN VR6 enable J52 1-2 R7_EN VR7 enable J53 1-2 R8_EN VR8 enable J58 1-2 R9_EN VR9 enable J59 1-2 R10_EN VR10 enable J64 1-2 R11_EN VR11 enable J65 1-2 R12_EN VR12 enable
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Table 4. EVM Jumpers (continued)
Position
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5 Description
The following paragraphs describe the UCD90120/4 EVM functionality and operation.
5.1 Communication Interfaces
Several communication interfaces to the UCD90120/4 are provided on the EVM.
5.1.1 USB Interface
An onboard USB to PMBus interface is provided through the USB Input (J3) connector. D56 provides USB attach status. The presence of USB power at J3 activates buffer circuitry which gives control of the PMBus to the on board circuitry. The absence of USB power at J3 gives PMBus control through the Expansion PMBus (J77) connector.
5.1.2 PMBus
Standard PMBus interface is provided to the UCD90120/4 through the J77 connector when the on EVM USB-PMBus interface is not used. PMBus addressing is set using the J18 jumper block for ADDRSENS1 and ADDRSENS0 respectively. ADDRx=8 and ADDRx=5 positions for each are provided. The EVM comes with PMBus address set to 101 decimal.
PMBus Address (decimal) = 12 × ADDR1 + ADDR0 jumper block setting.
5.1.3 JTAG
Standard JTAG programming interface is provided to the UCD90120/4 through the J9 connector. Install J6, J7, J11, and J12 jumpers and ensure that rail 9-12 enable jumpers (J47, J53, J59, J65) are removed when using the JTAG interface.
Description
5.2 Power
5.2.1 Input Power
The 12VDC EVM input power is provided through J1 (standard DC jack) or J2 (screw jack). A wall or laptop adapter with 500mA (UCD90120EVM) or 2000mA (UCD90124EVM running a fan) capability and
2.5mm I.D. x 5.5mm O.D. x 9.5mm DC jack can power the EVM. Reverse voltage protection and inrush limiting is provided for 12VBUS. The 12VBUS signal is distributed for fan power and Local 3.3V supply.
5.2.2 5VBUS
5VBUS is derived from 12VBUS and provides the input voltage for rails 1-12. D5 will illuminate when 5VBUS is present.
5.2.3 L3P3V
L3P3V is derived from 5VBUS and provides a general purpose 3.3V supply for the common onboard functions. The L3P3V jumper (J4) is installed to provide a connection to the 3P3V node.
5.2.4 V33D
The V33D node is connected to the UCD90120/4 digital and analog supply pins. V33D can be sourced by 3P3V or Local V33D using the J5 jumper. D9 will illuminate when V33D is present.
5.2.5 Local 3.3V
The UCD90120/4 can be powered from 12VBUS using the local V33D supply. Install J13 (12VB) and ensure J5 is installed in the LV33D position to use the local regulator.
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