SMM665EV SMM665EVAL fully functional printed circuit board design
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SMM665 Evaluation Quik-Start User's Guide
SMM665EV
SMM665EVAL fully functional printed circuit board designed demonstrate features SMM665 Nonvolatile, Programmable six-Channel Power Supply Active Output Controller (ADOCTM), Monitor Sequencer. SMM665EV operates from either +12V supply includes non-isolated DCDC converters. precision voltage reference permits Several key, user-configurable functions are: Power on/off sequence management User-Programmable Voltage Sensor with UnderVoltage Over-Voltage (UV/OV) fault monitoring (5mV increments) Programmable assertion levels management input/output pins Programmable nominal, high trim/margin voltages Programmable power-on/off intervals Programmable sequence time slots 6-channels SMM665EV User's Guide Table Contents Operating Instructions (Pg. Performance Measurements (Pg. SMM665EV Schematic (Pg.8) Layout Drawings, Jumper functions (Pg. Bill Materials (vendor sources) (Pg. Comments Precautions (Pg. Dongle pin-out photo (Pg. DC-DC converters trimmed within 0.2% tolerance. SMM665EVAL manages power-on/off sequencing DC-DC converters addition voltage monitoring, margining trimming onboard converters. Power on/off converters along with many other programmable features permitted through 2-wire interface. Additional features included EVAL board: connect Power Signal pins User-Programmable Interface connector digitally control power supply voltages, sequencing, etc. Low-Profile, Non-Isolated DC-DC converters with Trim/Enable/Sense Functions 48-pin TQFP Spring-Loaded Socket SMM665 Status Indicators (LED) included power, fault, etc. Large ground plane minimizes voltage errors
Evaluation Contents
Fully Functional SMM665 Evaluation Board. SMM665 Evaluation User's Guide. Dongle Programmer Interface Card. Dongle Interface Cable meter). CD-ROM containing: SMM665EV Gerber Files, Software, file, Application Notes/Briefs. Visit `www.summitmicro.com' current information.
Figure SMM665 Evaluation Board
©SUMMIT MICROELECTRONICS, Inc., 2003 www.summitmicro.com Drive, Jose, 95131-2312 7/31/03 Phone 408-436-9890 408-436-9897
SMM665EV Quik-Start User's Guide
12VIN VDD_CAP PWR_ON/OFF
VREF_ADC AIN1 AIN2 CAPA
3.6V 5.5V Regulator
Power Supply Arbitrator Cascade Sequence Control
PUPA PUPB PUPC PUPD PUPE PUPF
10-Bit
Temperature Sensor
CAPF HEALTHY FAULT
Output Control
TRIM TRIM_CAPA
Active Control
TRIM TRIM_CAPF VREF_CNTL FILT_CAP
Memory Limit Registers
Interface
Figure SMM665 Simplified Block Diagram
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SMM665EV Quik-Start User's Guide
Operating Instructions
Test Equipment Required Personal Computer with Windows later O/S) parallel port. Power Supply, 500mA. Oscilloscope, Digital sampling, 4-channel High Accuracy (e.g., HP34401A equivalent) Test Steps Software setup Close open Windows application programs. Insert "SMM665EV Software" into CD-ROM drive. Follow installation instructions, rebooting computer when prompted. After computer reboots, perform full power shutdown install Dongle. Dongle installation Caution: apply power sources SMM665 evaluation board while Dongle connected board. Remove existing cabling from computer's parallel port (LPT1). Connect Dongle parallel port. Insert Dongle cable onto SMM665 Evaluation board connector (pin board corresponds white wire with orange stripe, also SMX3200 Dongle Info Page SMX3200 Data Sheet ROM, site document package). Reapply power computer. After computer restarts, open `SMM665 Programmer' application program click `Standard Settings' button. dialog shown Figure will appear screen. Note: SMM665 device registers preconfigured with Default Configuration Settings shown SMM665 data sheet. Settings specific SMM665EV evaluation included Intel format file located programmed into SMM665 samples shipped with SMM665EV kit. Optional: Click `HEX' folder icon load `SMM665EV.Default Hex' file from CD-ROM drive. Optional: Click `Write Config' button. This configures SMM665 registers sequence DC-DC converters monitors DCDC converter output voltages, etc. Hardware Note: Dongle interface generates impedance source power program SMM665. Ensure jumpers their correct position displayed Figure Connect power source EVAL board follows: Connect terminal supply `GND' connect pin. Connect terminal supply `5VIN' connect pin. Switch power source HEALTHY (D13) indicates that DC-DC converters enabled within programmed tolerances. Explore SMM665 features changing many configurable parameters. Confirm programmed settings agree with actual measurements. Observe functionality SMM665 varying supply voltage changing states input signals. Only Operation: SMM665 Eval Board designed operate from because DC-DC Converters populated boards specified operate from inputs. order operate board from only, DC-DC converters Eval should removed populated with input devices. Also, jumpers through must moved from positions. Then, connect jumper (VREF_IN) from position VDD_CAP. Furthermore, connect jumper wire across test pins labeled VDD_CAP located below SMM665 Socket.
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SMM665EV Quik-Start User's Guide
Figure SMM665 Default Programmer Window with Standard Settings button selected.
Performance Measurements
Assuming input voltages within programmed limits, application power board will enable DC-DC converters according sequence programmed each channel SMM665. software Power-On command (Figure also used enable DC-DC converters. waveforms Figure were generated using Channel (3.3V DCDC converter output) time-base trigger. Note outputs asserted once pre-programmed time limit passed.
Conversely, SMM665 issued PowerOff command (Figure SMM665 programmed reverse PowerOff sequence, first supply shut last have turned (Channel displayed Figure supplies turned reverse order turnon sequence.
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SMM665EV Quik-Start User's Guide
Figure Using Software Power-On Command Commence Sequencing.
Figure SMM665EV Sequence-On Waveforms Tektronix TDS3054: Time/Horizontal division 40mS
1(500mV/Div) 3.3V DC-DC converter output (Yellow trace) (500mV/Div) 2.5V DC-DC converter output (Blue trace) (500mV/Div) 1.8V DC-DC converter output (Purple trace) (500mV/Div) 1.5V DC-DC converter output (Green trace)
Figure SMM665EV Sequence-Off Waveforms Tektronix TDS3054: Time/Horizontal division 400mS
1(500mV/Div) 3.3V DC-DC converter output (Yellow trace) (500mV/Div) 2.5V DC-DC converter output (Blue trace) (500mV/Div) 1.8V DC-DC converter output (Purple trace) (500mV/Div) 1.5V DC-DC converter output (Green trace)
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SMM665EV Quik-Start User's Guide
further demonstration SMM665's many features, Voltage Margining performed Channels (Figure Channels first selected Margin High then `Write' button clicked begin process. seen Figure supplies begin complete margin high event approximately 200mS.
Margin High Channels
Figure Using `Margin Command' Enable Voltage (High) Margining Supplies.
Figure SMM665EV Margin High Waveforms Tektronix TDS3054: Time/Horizontal division 200mS (1V/Div) 3.3V DC-DC converter output (Yellow trace) (500mV/Div) 2.5VDC-DC converter output (Blue trace) (500mV/Div) 1.8V DC-DC converter output (Purple trace) (500mV/Div) 1.5V DC-DC converter output (Green trace)
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SMM665EV Quik-Start User's Guide
Margin Channels
Figure Using `Margin Command' Enable Voltage (Low) Margining Supplies. Next, manipulated margin same supplies (Figure After selecting `Margin Command' Channels, `Write' button again clicked. Figure displays Margin event. time required this event same Margin High event; approximately 200mS.
Figure SMM665EV Margin Waveforms Tektronix TDS3054: Time/Horizontal division 100mS
(1V/Div) 3.3V DC-DC converter output (Yellow trace) (500mV/Div) 2.5V DC-DC converter output (Blue trace) (500mV/Div) 1.8V DC-DC converter output (Purple trace) (500mV/Div) 1.5V DC-DC converter output (Green trace)
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SMM665EV Quik-Start User's Guide
Figure11: SMM665 Evaluation Board Schematic includes non-isolated DC/DC converters.
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SMM665EV Quik-Start User's Guide
Figure SMM665 Evaluation Board Silkscreen Table SMM665 Evaluation Board Jumper List (see Figures locations function) Jumper Name Default Function (Across pins Sets input state (Default GND) PWR_ON/OFF (Across pins Sets PWR_ON/OFF input state (Default GND) (Across pins Sets input state (Default GND) (Across pins Sets input state (Default GND) J7-J12 12V" "5V" (Across pins Selects input voltage converters 12V) "1.2V" (Across pins Connects converter's ENABLE input pull-up resistor VDD. "1.5V" (Across pins Connects converter's ENABLE input pull-up resistor VDD. "1.8V" (Across pins Connects converter's ENABLE input pull-up resistor VDD. "2.1V" (Across pins Connects converter's ENABLE input pull-up resistor VDD. "2.5V" (Across pins Connects converter's ENABLE input pull-up resistor VDD. "3.3V" (Across pins Connects converter's ENABLE input pull-up resistor VDD. "1.2EN" Shorts converter's ENABLE input "1.5EN" Shorts converter's ENABLE input "1.8EN" Shorts converter's ENABLE input "2.1EN" Shorts converter's ENABLE input "2.5EN" Shorts converter's ENABLE input "3.3EN" Shorts converter's ENABLE input "LM4121" Selects reference source SMM665 ADOC function "VREF_ADC" Selects reference source SMM665 function Vref "VDD (Across middle Selects input supply source LM4121 VDD_CAP" "VDD")
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SMM665EV Quik-Start User's Guide
Figure SMM665EV Copper
Figure SMM665EV Bottom Copper
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SMM665EV Quik-Start User's Guide
Table SMM665 Evaluation Board Parts List Item Resistors 10K, 1/10W, 0805, 10K, 1/10W, 0805, 30K, 1/10W, 0805, 1/10W, 0805, 4.7K, 1/10W, 0805, 47K, 1/10W, 0805, 1/4W, leaded Optional load resistors, test purposes RT1, R1-R7, R16, R14, R24-R29 R8-R13 DescriptionVendor Part Number Ref. Des.
Capacitors 0.1uF, 50V, ceramic, X7R, 0805,
0.022uF, 50V, ceramic, X7R, 0805, 0.01uF, 50V, ceramic, X7R, 0805,
C10, C24, C26, C28, C30, C32, C34, C54, C56, C58, C60, C62, C11, C12, C14-C19, C25, C27, C29, C31, C33, C35, C36, C38, C40, C43, C45, C47, C55, C57, C59, C61, C63, C65C67 C37, C39, C41, C42, C44, D11, D12,
1uF, 50V, ceramic, X7R, 0805, 10uF, 10V, Tantalum, Size Semiconductors LED, Red, 0805, Diode, Small Signal, 1N4148, LM4121 SMM665FC, Six-Channel Power Supply Output Controller, Monitor Sequencer DC-DC Converter, Non-Isolated, DC-DC Converter, Non-Isolated, DC-DC Converter, Non-Isolated, DC-DC Converter, Non-Isolated, DC-DC Converter, Non-Isolated, DC-DC Converter, Non-Isolated,
AVX, TAJB106M010 Digi-Key, 160-1176-1-ND Digi-Key, LM4121IM5-1.2CT-ND Summit Microelectronics
Tyco, AXH010A0F 3.3V Note Tyco, AXH010A0G, 2.5V Note Tyco, AXH010A0D, 2.0V Note Tyco, AXH010A0Y, 1.8V Note Tyco, AXH010A0M, 1.5V Note Tyco, AXH010A0P, 1.2V Note
Note Substitute DC-DC Converters vertical mount format used such Tyco Austin Lynx series SynQor NiQor series. Different output voltage levels also substituted long SMM665 programmed levels.
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SMM665EV Quik-Start User's Guide
Table SMM665 Evaluation Board Parts List (Continued). Item DescriptionHardware Connector, Test Point Connector, 18-pin, dual-row, 0.1" spacing (3-pin) Connector, 18-pin, dual-row, 0.1" spacing (2-pin) Connector, 10-pin, dual-row, 0.1" spacing Jumper, 2-pin, 0.1" spacing Socket, 48-pin, spring-loaded SMM665EV Printed circuit board Vendor Part Number Milmax, 0300-1-15-01-47-27-10-0 Digi-Key, S2112-36-ND Digi-Key, S2112-36-ND Digi-Key, S2112-36-ND Digi-Key, 929955-06-ND Wells, QFP-7MM-48-LD, 7007-048-1-07 Summit Microelectronics Ref. Des. TP2-TP24, TP28-TP30, TP34-TP62 (Various) J7-J12 (Various) J4-J6, J13-J26 (Various) (I2C) (Various) (Reference) SMM665EV
Comments Precautions
Ensure that SMM665 device securely seated 48-pin TQFP Spring-Loaded Socket correctly oriented indicated block dot/void part marking orientation. Occasionally, socket lose contact from oxidation. With power turned-off, reseat device pressing down releasing socket. SMM665 precision integrated circuit requiring certain attention spent with regards component selection printed circuit board layout ensure greatest possible performance. Since SMM665 does measure each voltage differentially, special attention must paid where part's connected. measurements best made load power supplies, should also connected power supply return load. Accurate measurements supplies possible laying such that large copper trace from each individual supply voltage return load) routed separately directly SMM665 joined together there `star ground'). large trace ensures that currents flowing between supply returns does result voltage drop occurring between point load single point connection made SMM665 pin. Choose low-leakage ceramic film capacitors TRIMx pins sample-and-hold function, making sure these components located close SMM665 possible. Although internal voltage reference available, higher accuracies possible using external 0.1% reference. Locate this device nearby SMM665 keep ground connection from reference SMM665. TRIM_CAP physical location important that forms low-pass filter with TRIM_CAP filter DC-DC converter switching noise. ceramic capacitor sufficient this purpose.
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SMM665EV Quik-Start User's Guide
View SMX3200 cable connector
Name Ground Ground Reserved Volts Reserved Volts Reserved Wire Color Code white orange orange white green green blue white blue brown white brown
SMX3200 wire color code Parallel Port Dongle
SMX3200 Cable Connector Figure SMX3200 Dongle Dongle Interface Cable
NOTICE
SUMMIT Microelectronics, Inc. reserves right make changes products contained this publication order improve design, performance reliability. SUMMIT Microelectronics, Inc. assumes responsibility circuits described herein, conveys license under patent other right, makes representation that circuits free patent infringement. Charts schedules contained herein reflect representative operating parameters, vary depending upon user's specific application. While information this publication been carefully checked, SUMMIT Microelectronics, Inc. shall liable damages arising result error omission. SUMMIT Microelectronics, Inc. does recommend products life support aviation applications where failure malfunction product reasonably expected cause failure either system significantly affect their safety effectiveness. Products authorized such applications unless SUMMIT Microelectronics, Inc. receives written assurances, satisfaction, that: risk injury damage been minimized; user assumes such risks; potential liability SUMMIT Microelectronics, Inc. adequately protected under circumstances.
Revision This document supersedes previous versions. Copyright 2003 SUMMIT Microelectronics, Inc.
ADOC
trademark Summit Microelectronics, Inc., trademark Philips Corporation. Drive, Jose, 95131-2312 7/31/03 Phone 408-436-9890 408-436-9897
©SUMMIT MICROELECTRONICS, Inc., 2003 www.summitmicro.com
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