DEMO MANUAL DC1633B Programmable Hex Voltage Supervisor Featuring the LTC2933 with EEPROM Description The DC1633B is a demonstration system that showcases the LTC®2933, a 6-channel I2C/SMBus voltage supervisor with EEPROM. The LTC2933 simultaneously monitors up to six power supply voltages and detects under/overvoltage conditions. In addition the LTC2933 monitors two GPI pins and is able to drive three GPIO pins to indicate OV, UV, system reset, system alert, or other control signal. The DC1633B is a single circuit board that contains the LTC2933 and support circuitry to provide the ability to demonstrate features and capabilities of the LTC2933 without the need for external power supplies. The DC1633B demo board provides an accurate voltage supervision of six channels and offers over/undervoltage thresholds in various ranges and increments that are digitally programmable. This demonstration system is supported by the LTpowerPlay™ graphical user interface (GUI) which enables complete control of all the features of the device. Together, the LTpowerPlay software and DC1633B hardware system create a powerful development environment for designing and testing configuration settings of the LTC2933. These settings can be stored in the device’s internal EEPROM or in a file. This file can later be used to order pre-programmed devices or to program devices in a production environment. The software displays all of the configuration settings and real time measurements from the system supervisor and peripheral ICs. Telemetry allows easy access and decoding of the fault log created by the LTC2933. The board comes pre-programmed with the EEPROM values appropriate for the six power supply rails on the DC1633B. Just plug and play! The LTC2933 chip is mounted on the topside of the board with support ADC and DAC circuitry on the back. The ADC provides voltage readings for all six voltage supervisor inputs on the LTC2933 and also reads the GPI and GPIO voltages. The DAC drives five programmable voltages that are used to emulate the user’s system rails. The extra support circuitry allows the user to evaluate the LTC2933 quickly and without the need for external voltmeters or power supplies. The DC1633B demo board can be powered by an external power supply, such as a +12VDC supply. Communication with the software is provided through the DC1613 USB-toI2C/SMBus/PMBus controller. The following is a checklist of items which can be obtained from the LTC website or LTC Field Sales. • USB-to-I2C/SMBus/PMBus Controller (DC1613) • LTpowerPlay Software DC1633B Features • • • • • • • • • • • • • • Supervise Six Power Supplies Powered from USB Dongle, Power Jack, or V1-V4 I2C Adjustable OV/UV Trip Points Guaranteed Threshold Accuracy ±1% I2C/SMBus Serial Interface Internal EEPROM 256 Programmable Thresholds per Channel Up to Three Range Settings per Channel Two General Purpose Inputs Three General Purpose Inputs/Outputs Programmable Output Delays Autonomous Operation without Additional Software Supported by LTpowerPlay GUI LTC2933 Available in 16-Lead DFN and SSOP Packages Design files for this circuit board are available at http://www.linear.com/demo/DC1633B L, LT, LTC, LTM, Linear Technology, the Linear logo and PolyPhase are registered trademarks and LTpowerPlay is a trademark of Linear Technology Corporation. All other trademarks are the property of their respective owners. Protected by Patents including 7382303, 7420359, 7940091. dc1633bf 1 DEMO MANUAL DC1633B Performance Summary COMMON CHARACTERISTICS PARAMETER Supply Input Voltage Range V1 Threshold Accuracy V1 Monitoring Range V2 to V6 Threshold Accuracy V2 to V6 Monitoring Range CONDITIONS VIN1 VIN2 through VIN4 Medium Range High Range Precision Range Low Range Medium Range Table 1. Default Thresholds and GPIO Mappings Vn_THR_HI Vn_THR_LO GPIO1 GPIO2 Default Thresholds OV ALERT V1 5.5 4.5 Comp_Hi Comp_Hi V2 2.6V 2.4V Comp_Hi Comp_Hi V3 2.1V 1.9V Comp_Hi Comp_Hi V4 1.6V 1.4V Comp_Hi Comp_Hi V5 1.3V 1.1V Comp_Hi Comp_Hi V6 1.05V 0.95V Comp_Hi Comp_Hi 2 SPECIFICATIONS VALID OVER FULL OPERATING TEMPERATURE RANGE VALUE MIN TYP MAX UNITS 3.4 13.9 V 3.4 5.8 V ±1.5 % 1 5.8 V 2.5 13.9 V % ±1.0 0.2 1.2 V 0.5 3.0 V 1.0 5.8 V Table 2. Default GPI Settings GPIO3 UV Comp_Lo Comp_Lo Comp_Lo Comp_Lo Comp_Lo Comp_Lo MANUAL RESET GPI1 GPI2 MARGIN UVDISABLE AUX COMP ✓ ✓ dc1633bf DEMO MANUAL DC1633B Glossary of Terms The following list contains terms used throughout the document. AUXC: Auxiliary Comparator. A GPI pin may be programmed to this function and map behavior to a GPIO pin. Nominal VTH = 0.5V. EEPROM: Non-volatile memory (NVM) storage used to retain data after power is removed. Margin: Term used typically in board level testing that increases/decreases the output voltage to look for sensitivity/marginality problems. MARG: Ignore OV and UV faults when active (low). A GPI pin may be programmed to this function and map behavior to a GPIO pin. Nominal VTH = 1.0V. NVM: Non-Volatile Memory, See EEPROM. OV: Overvoltage. The result of a voltage comparison that a pin voltage is above a programmable threshold voltage. Rail: The final output voltage that the LTC2933 supervises. Supervise: The act of quickly responding (compared to a fault setting) to a voltage that is compared to preprogrammed values. UV: Undervoltage. The result of a voltage comparison that a pin voltage is below a programmable threshold voltage. UVDIS: UV Disable. Ignore UV faults when the pin is low. A GPI pin may be programmed to this function and map behavior to a GPIO pin. Nominal VTH = 1.0V. MR: Manual Reset, Active Low. A GPI pin may be programmed to this function, map behavior to a GPIO pin, and optionally clear the fault history. Nominal VTH = 1.0V. dc1633bf 3 DEMO MANUAL DC1633B Theory of Operation GENERAL DESCRIPTION THE CHIP Each channel’s high/low comparators may be mapped to any GPIO pin, and any comparator may be mapped to multiple GPIO pins. Typically the high comparator is used for the overvoltage condition and the low comparator is used for the undervoltage condition. The high comparator is not dedicated to OV detection nor is the low comparator dedicated for UV detection. For example, both comparators may be configured as OV with the Vn_THR_HI set to indicate an OV Fault and the Vn_THR_LO set for an OV Warning. The LTC2933 integrates six voltage supervisors, two GPIs, and three GPIOs. The V1-V6 supervisors are comprised of OV/UV window comparators that can be programmed to map the detection of a fault to one or more GPIO pin. The simplified diagram of a GPIO pin shows that the pin may be configured as an active-high or active-low input with optional pullup, or as an active-high or active-low output with optional latched output. The LTC2933 is a hex voltage supervisor which detects an over or undervoltage and signals the system of a fault condition. It does not have a dedicated power supply pin. The chip is powered from the highest voltage applied to V1 through V4, as long as one of these voltages is > 3.4V. Vn_THR_HI HIGH THR SETTING Vn Vn_THR_LO LOW THR SETTING HIGH COMPARATOR INPUT OPTIONS INPUT/INPUT HIGH FAULT LOW FAULT GPIO MAPPING (Vn_CONFIG) GPIO1 GPIO2 INTERNAL LOGIC GPIO GPIO3 LOW COMPARATOR GPI1 GPI2 OUTPUT OPTIONS OUTPUT/OUTPUT WITH OPEN DRAIN OUTPUT/OUTPUT WITH PULL-UP SMBALERT (LATCHED) WITH OPEN DRAIN OR WITH PULL-UP DC1633B F01 Figure 1. Simplified Block Diagram of Voltage Supervisor Input In LTpowerPlay, the user programs each voltage supervisor’s range, polarity, mapping, and high and low threshold voltages. The GPI input pins can be used to override fault conditions by configuring them as MARG or UVDIS. The active-low MARG function allows the LTC2933 to ignore OV and UV conditions. The active-low UVDIS function is a special case of the MARG function. It allows the device to ignore UV conditions. The simplified diagram of a GPI pin shows the four configurable options: Manual Reset, Margin, UV Disable, and AUXC. The AUXC option does not provide an internal pull-up. INPUT OPTIONS MANUAL RESET MARGIN UV DISABLE AUXC (NO PULL-UP) GPI 4 INTERNAL LOGIC dc1633bf DEMO MANUAL DC1633B Theory of Operation 5V OR EXT GPIO1 V1 V2 I2C BUS V3 V4 V5 V2-V6 V6 BLUE/RED LTC2933 6-CH VOLTAGE GPIO2 SUPERVISOR WITH EEPROM BLUE/RED GPIO3 BLUE/RED VDD33 3.3VOUT GREEN EXT INT 12-BIT DAC (LTC2637) GPI2 V1-V6, GPI1-2, GPIO1-3 GPI1 24-BIT ADC (LTC2499) I2C BUS TOPSIDE COMPONENT BOTTOM COMPONENT +5V FROM USB POWER SWITCH (LTC4415) 5V GREEN 5V LDO (LT1761-5) POWER JACK 6V TO 14V DC1633B F02 Figure 2. Simplified Block Diagram of the DC1633B THE BOARD The LTC2933 chip is mounted on the topside of the board with support ADC and DAC circuitry on the back. The support circuitry is powered from +5V. The ADC provides voltage readings for all six voltage inputs to the LTC2933 and also reads the GPI and GPIO voltages for a total of eleven. Although the ADC updates at a relatively slow rate, it provides the equivalent of eleven 4½-digit digital multimeters. The simplest demonstration of the DC1633B is to power and control the board via the DC1613 USB controller. The controller provides 5V supply and I2C/SMBus read/write control. This setup provides a quick and easy way to demonstrate the LTC2933’s capabilities. One LTC2637 (DAC) The multi-channel DAC emulates a 5-channel programmable power supply that is used to place “rail” voltages at levels that replicate the user’s system rails. This avoids the need for the user to wire actual supply rails to the demo board. However, the board was designed to allow this use case. The DAC output range is 0V to 4V. This is sufficient for demo purposes. Simply place the V2-V6 jumpers to “INT” for internal DAC use, and set to “EXT” if an external supply is provided on the turret. dc1633bf 5 DEMO MANUAL DC1633B Theory of Operation POWERING THE BOARD SELECTING A DEVICE ADDRESS The DC1633B board can be powered from the DC1613 USB’s 5V power or from a wall-powered 12V supply (jack). The LTC2933 hex supervisor can be powered in a number of different ways. The chip itself is powered by any of the inputs V1 through V4, as long as one is above 3.4V. There is a table silk-screened onto the board as a reminder. An internal diode-OR circuit automatically selects the highest voltage of the four inputs. If the USB power or jack power is present, the +5V LED will illuminate. The LTC2933 can then be powered by setting the jumper to “INT 5V”. Alternatively set the jumper to “V1 EXT” to connect an external power supply voltage to the V1 EXT turret. The board comes pre-configured with jumpers JP1-JP6 set to the INTERNAL position which allows the on-board 5V LDO regulator to power all circuits. The DC1633B has a jumper (JP7) labeled ASEL which allows the user to select one of three I2C addresses. See Table 3. NOTE: Turrets V2-V6 are tied directly to the LTC2933 independent of the jumper settings. Turret “V1 EXT” is connected to the V1 pin when the jumper is set to V1 EXT and is not connected to the V1 pin when the jumper is set to “INT 5V”. To monitor the V1 pin voltage with a scope probe or DMM, a test point is provided next to the jumper. The DC1633B uses a multiplexed ADC that is used to provide voltage readback values. Due to the nature of a multiplexed ADC converter, it has an associated ADC loop time. The total ADC loop time is ~400ms for a given channel. You may notice some lag in the update rate of the displayed voltages. 6 Table 3. Address Selection of LTC2933 I2C ADDRESS (7-BIT) POSITION DEFAULT 0x1C L ✓ 0x1D Z 0x1E H Regardless of the jumper setting, the part will always respond to the I2C global 7-bit addresses 0x0C and 0x1B. STATUS_WORD REGISTER To clear a fault, the user may click the CF icon in the GUI or simply push the RESET pushbutton on the demo board. In both cases, the red (+) on the CF icon and alert LED on the board will be cleared. You will notice that all rails are automatically re-enabled after a programmable retry period. The alert LED may be cleared by clicking the Clear Faults (CF) icon in the GUI. After clearing faults, the system tree may remain “yellow” if any non-volatile fault logs are present. RESTORING RAM and GUI FROM LTC2933 To restore the operating memory (RAM) from the LTC2933 EEPROM contents, click the “R” NVM-to-RAM icon in the toolbar. To read the RAM registers into the GUI, click the “R” RAM-to-PC icon in the toolbar. dc1633bf DEMO MANUAL DC1633B Theory of Operation DC1633B LEDs DC1633B ToolWindow and GUI Indicators The DC1633B board has two green LEDs. When USB power (DC1613 Controller) or external power (6V-14V jack) is applied, the +5V green LED will illuminate. The +5V supply provides power to the support circuitry, not necessarily to the LTC2933. The default setting of jumper JP1 is set to internal 5V and the +3.3V OUT LED will illuminate, indicating the LTC2933 is powered. This LED is not a power good indicator and may falsely indicate proper operation when dimly lit. It may be slightly illuminated if the highest voltage on the V1-V4 inputs are set as low as 1.8V. At this point, the LTC2933 is not in a functioning state, the I2C bus will not communicate with the GUI, and the LTC2933 will be grayed out in the system tree. The ToolWindow displays the ADC readings on the left and DAC voltage settings on the right. The blue/red indicators next to the GPIs and GPIOs display the state (H vs L) and voltage reading from the ADC (LTC2499). Blue indicates a logic high and red indicates a logic low. The ToolWindow is automatically populated when LTpowerPlay detects the DC1633B demo board when it starts. dc1633bf 7 DEMO MANUAL DC1633B LTpowerPlay GUI Software LTpowerPlay is a powerful Windows-based development environment that supports Linear Technology Power System Management ICs with EEPROM, including the LTC2933 6-channel voltage supervisor. The software supports a variety of different tasks. You can use LTpowerPlay to evaluate Linear Technology ICs by connecting to a demo board system. LTpowerPlay can also be used in an offline mode (with no hardware present) in order to build a multi-chip configuration file that can be saved and reloaded at a later time. LTpowerPlay provides unprecedented system level diagnostic and debug features. It becomes a valuable diagnostic tool during board bringup to program or tweak the power management scheme in a system or to diagnose power issues when bringing up rails. LTpowerPlay utilizes the DC1613 I2C/SMBus/ PMBus controller to communicate with one of many potential targets, including the DC1633B demo system or a customer board. The software also provides an automatic update feature to keep the software current with the latest set of device drivers and documentation. The LTpowerPlay software can be downloaded from: http://www.linear.com/ltpowerplay To access technical support documents for LTC Power System Management Products visit "Help, View Online Help" on the LTpowerPlay menu. Figure 3. Screenshot of the LTpowerPlay GUI 8 dc1633bf DEMO MANUAL DC1633B Quick Start Procedure The following procedure describes how to set up a DC1633B demo system. 1.Download and install the LTpowerPlay GUI: www.linear.com/ltpowerplay 2.Remove the board from the ESD protective bag and place it on a level surface. Connect the DC1613 I2C/ SMBus/PMBus Controller to the DC1633B board using the 12-pin ribbon cable. 5.Load the Demo Configuration. In the upper left hand corner of the GUI, select File > Initialize DC1633B Demo > Demo Config (or Factory Defaults). This will load the configuration settings into the working RAM of the LTC2933, set the DAC outputs, clear the status registers, and store the settings into NVM (EEPROM). The ‘Demo Config’ file is the starting point for the use cases. The ‘Factory Defaults’ file sets the Vn thresholds that accommodate the initial powerup state of the DAC outputs (2.048V). Saving a Configuration You can make changes to the LTC2933 register values and DAC settings. Save the demo board configuration to a (*.proj) file by clicking the "Save" icon. This creates a backup file. Name it whatever you like. Note that the DAC settings are saved in the project file. Figure 4. Connecting DC1633B Board and the DC1613 USB to I2C/SMBus/PMBus Controller 3.Plug the USB-to-I2C/SMBus/PMBus Controller into a USB port on your PC. The board should power up with +5V and +3.3V OUT LEDs illuminated green. The GPIO LEDs will illuminate blue. 4.Launch the LTpowerPlay GUI. a.The GUI automatically identifies the DC1633B and builds a system tree for each I2C device. The system tree on the left hand side will look like this: Quick Start Video There is a Quick Start video that covers the basic features of the LTC2933 chip and DC1633B demo board. The video can be accessed via LTpowerPlay by navigating to the Help menu > DC1633B. b.A green message box will be displayed momentarily in the lower left hand corner confirming that the DC1633B is communicating. dc1633bf 9 DEMO MANUAL DC1633B DC1633B Details – Top Side Figure 5. DC1633B Top Side Details Table 2. Default Jumper Configuration REFERENCE DESIGNATOR 10 SIGNAL NAME USAGE JP1 V1 JP2–JP6 V2–V6 Selects Internal 5V vs External “V1 EXT” Turret Power Selects Internal vs External Voltage JP7 ASEL Selects H/Z/L for LTC2933 Slave Address DEFAULT INT 5V INT L dc1633bf DEMO MANUAL DC1633B Demo Board Use Cases USE CASE #1 A common configuration for the LTC2933 dedicates the V1 pin to the highest supply in the system and uses V2-V6 to monitor other voltages. The V1 pin provides power to the chip and also is used to detect an OV or UV on the V1 pin. For simplicity, the USB controller (DC1613) powers the board and the LTC2933 is powered via the V1 pin with the jumper set to INT 5V. Each of the high comparator fault outputs is mapped to GPIO1, indicating an active-low OV fault. Each of the low comparator fault outputs are mapped to GPIO3, indicating an active-low UV fault. These OV and UV conditions are indicated in multiple places – LEDs next to the GPIO turrets and also in the GUI. The GPIO2 pin has been mapped as an active-low latched OV indicator. The latched ALERT is cleared by pressing the GPI1 pushbutton. The GPIO pins have a red-blue LED which is red when low and blue when high. and 1.1V. Also notice in the Telemetry window a STATUS_WORD register, expand it. This register is a live indicator of LO or HI fault conditions. Note the state of LO_FAULT bits when the margin low button is selected. We can demonstrate the effect of the GPI2 pushbutton at this point. The GPI2 pin has been programmed to function as MARG, enabling the LTC2933 to ignore all UV conditions. Notice that when the pushbutton is depressed, GPIO3 returns high (blue). This is useful when the system does not want to be informed of a UV condition during margin low testing. Moving the DAC voltages back to 1.2V and 1V returns GPIO3 to a high state (blue), indicating there is no UV condition. The two GPI inputs are used to detect a Manual Reset (MR) and Margin disable (MARG) and activated when the pushbutton switches are depressed. GPIO1 → OV fault GPIO2 → ALERT (latched) GPIO3 → UV fault GPI1 → MR (manual reset) GPI2 → MARG (ignore OV/UV when margining) Let’s margin V5 and V6 low by typing a value of 1V and 0.9V into the respective DAC control boxes. You may also move the DAC output by clicking the up/ down arrows on the individual DAC box or by doubleclicking the DAC value and entering a new value in the box. V5 and V6 will report a UV, turning the LED on GPIO3 red. The dashboard in the GUI indicates the V5 and V6 voltages are below the LO thresholds of 0.95V Let’s margin V5 and V6 high by typing a value of 1.4V and 1.1V into the respective DAC control boxes. V5 and V6 will report an OV in the GUI and on the demo board. Both GPIO1 and GPIO2 LEDs will turn red and the dashboard indicates an OV condition and a latched ALERT. Note the state of HI_FAULT bits in the STATUS_ WORD register. When the GPI2 button is pushed, the GPIO1 (OV) LED is returned to blue and the STATUS_WORD reflects dc1633bf 11 DEMO MANUAL DC1633B Demo Board Use Cases the MARG pin as well, clearing the HI_FAULT bits. We can now change the DACs back to 1.2V and 1.0V. The OV condition is no longer present, however ALERT (GPIO2) remains latched low. Since the GPI1 pin is defined as a Manual Reset, pressing this button clears the latched ALERT, turning GPIO2 LED blue which indicates a deasserted high state. USE CASE #2 The DC1633B demo board can be configured to supervise external supply voltages. Inputs V2-V6 may be used for this purpose. Simply move the jumper from INT to EXT which disconnects the backside DAC, allowing an external voltage to be applied to the LTC2933. Please ensure the max ratings on the turrets are not exceeded, most of which are 6V. For simplicity, the V1 jumper will remain in the INT 5V position to power the LTC2933. However, in an actual application, the device is powered from the highest voltage on the V1-V4 pins, assuming at least one is above 3.4V. Apply an external supply voltage to the turret. It is recommended to drive V1-V4 turrets with a low impedance (<10Ω) voltage source. A sensor or other moderate source impedance voltage may be supervised on V5 or V6 inputs. A battery voltage may be supervised on V1-V4 and power the chip since the LTC2933 supply current is <700µA. For example, a +5V external supply may be connected to turret V2. Notice the GPIO1 and GPIO2 LEDs turn red, indicating OV and ALERT are asserted low. The V2 thresholds need to be changed. Enter 5.5V and 4.5V for the HI and LO threshold settings. The GPIO1 will return high and the LED will change to blue but the GPIO2 remains low (red) since it indicates a latched ALERT. Press the MR pushbutton on GPI1 to release GPIO2 back high (LED blue). The GPI inputs may also be used to monitor external voltages. These pins can be configured as an auxiliary comparator (AUXC). In this mode, the GPI pin voltage is compared to an internal 0.5V reference. Typically an external voltage divider is provided to obtain the appropriate trip point for the external voltage. The GPI comparators can be mapped to one of the GPIOs to alert the system of an over or undervoltage condition. 12 dc1633bf DEMO MANUAL DC1633B Demo Board Use Cases USE CASE #3 Another common configuration is one that uses a GPIO pin to drive a system reset. The LTC2933 data sheet shows this feature throughout. The other two GPIOs are configured as previously shown, OV and ALERT. Additionally a manual reset pushbutton (GPI1) asserts the system reset. 3. Configure GPIO1 as active-low with weak pull-up. To update the changes made in steps 1-3, click the Write All Registers (PC->RAM) icon. GPIO1 → RST (system reset) GPIO2 → OV GPIO3 → ALERT 4. You can optionally extend the low time of the system reset by changing the delay-on-release setting to ensure a clean release of reset. This provides a time-based debounce of the switch. GPI1 → MR pushbutton V1 V2 V3 V4 V5 V6 LTC2933 GPI1 MR SYSTEM GPIO1 GPIO2 GPIO3 SDA SCL GPI2 RST OV ALERT MARG 1. To program GPIO1 to system reset function, first uncheck the mapping of all V1-V6 channels to GPIO1. 2. Configure GPI1 as a Manual Reset. Map GPI1 to GPIO1. When configured in this way, GPIO1 provides a system reset for the host processor and GPI1 can drive a system reset (GPIO1) with a push of a button. You may set the GPIO1 delay-on-release time to 410ms to experience the extended reset firsthand. The UV condition indicator remains on GPIO3. The OV condition is indicated as a latched ALERT on GPIO2. When the GPI1 pushbutton is pressed, a system reset is asserted on GPIO1 and the ALERT is released if the OV condition is removed. dc1633bf 13 DEMO MANUAL DC1633B DC1633B Details – Top 14 dc1633bf DEMO MANUAL DC1633B DC1633B Details – Bottom dc1633bf 15 DEMO MANUAL DC1633B Parts List ITEM QTY REFERENCE PART DESCRIPTION MANUFACTURER/PART NUMBER IC PROG HEX VOLT SUPERVISOR EEPROM SSOP16 LINEAR: LTC2933CGN#PBF CAP CER 10nF 25V 10% X7R 0603 MURATA: GRM188R71E103KA01D Required Circuit Components 1 1 U1 Additional Demo Board Circuit Components 2 16 C1, C2, C3, C4, C5, C6, C8, C9, C10, C11, C12, C13, C14, C19, C27, C34 3 9 C7, C15, C16, C17, C18, C26, C28, CAP CER 100nF 16V 10% X7R 0603 C29, C33 MURATA: GRM188R71C104KA01D 4 3 C20, C21, C25 CAP CER 1µF 16V 10% X7R 0603 MURATA: GRM188R71C105KA12D 5 1 C22 CAP CER 22µF 25V 10% X5R 1210 MURATA: GRM32ER61E226KE15L 6 2 C23, C24 CAP CER 10µF 16V 10% X5R 0805 MURATA: GRM21BR61C106KE15L 7 0 C30, C31, C32 (OPT.) CAP CER 100nF 16V 10% X7R 0603 8 3 LED1, LED2, LED3 LED-DUAL-COLOR 1.6mm × 0.8mm RED-BLUE KINGBRIGHT: APHB1608QBDSURKC 9 2 LED4, LED5 LED GREEN SS TYPE BRIGHT SMD PANASONIC: LNJ326W83RA 10 3 Q1, Q2, Q3 MOSFET NCH DUAL 60V 180MA DIODES INC: 2N7002DWA-7 11 1 R1 RES 60.4kΩ 0.1W 0.1% ±25ppm 0603 SMD PANASONIC: ERA-3AEB6042V 12 5 R2, R3, R4, R5, R6 RES 20.0kΩ 0.1W 0.1% ±25ppm 0603 SMD PANASONIC: ERA-3AEB203V 13 6 R7, R8, R9, R10, R11, R12 RES 10.0kΩ 0.1W 0.1% ±25ppm 0603 SMD PANASONIC: ERA-3AEB103V 14 8 R13, R14, R41, R42, R44, R55, R56, R57 RES 10.0kΩ 0.1W 1% 0603 SMD VISHAY: CRCW060310K0FKEA 15 2 R15, R16 RES 402kΩ 0.1W 1% 0603 SMD VISHAY: CRCW0603402KFKEA 16 5 R17, R18, R61, R63, R65 RES 200kΩ 0.1W 1% 0603 SMD VISHAY: CRCW0603200KFKEA 17 3 R19, R20, R21 RES 604kΩ 0.1W 1% 0603 SMD VISHAY: CRCW0603604KFKEA 18 6 R22, R23, R24, R62, R64, R66 RES 100kΩ 0.1W 1% 0603 SMD VISHAY: CRCW0603100KFKEA 19 4 R25, R27, R29, R48 RES 3.0kΩ 0.1W 1% 0603 SMD VISHAY: CRCW06033K00JNEA 20 6 R26, R28, R30, R46, R58, R59 RES 1.0kΩ 0.1W 1% 0603 SMD VISHAY: CRCW06031K00JNEA 21 0 R31, R32, R33, R49, R51, R53 (OPT.) RES 0Ω 0603 SMD (OPTIONAL) 22 8 R34, R35, R36, R37, R38, R50, R52, R54 RES 0Ω 0.1W 0603 SMD VISHAY: CRCW06030000Z0EA 23 2 R39, R40 0Ω RESISTOR ARRAY, 4 RES, 1206 PANASONIC: EXB-38VR000V 24 1 R43 RES 49.9kΩ 0.1W 1% 0603 SMD VISHAY: CRCW060349K9FKEA 25 1 R45 RES 249Ω 0.1W 1% 0603 SMD VISHAY: CRCW0603249RFKEA 26 1 R47 RES 9.31kΩ 0.1W 1% 0603 SMD VISHAY: CRCW06039K31FKEA 27 1 R60 RES 1.50kΩ 0.1W 1% 0603 SMD VISHAY: CRCW06031K50JNEA LINEAR: LTC2499CUHF#PBF 28 1 U2 IC ADC 24-BIT DELTA SIGMA 16-CH WITH I2C 29 1 U3 IC OPAMP DUAL MICROPOWER LINEAR: LTC6078CMS8 30 1 U4 IC DAC 12BIT OCTAL WITH I2C LINEAR: LTC2637CMS-HMX12 31 1 U5 IC VREF SERIES PRECISION REFERENCE LINEAR: LT6654AMPS6-4.096 32 1 U6 FIXED 5V 100mA MICROPOWER LDO LINEAR: LT1761ES5-5#PBF MICROCHIP: 24AA02T-I/OT LINEAR: LTC4415IMSE#PBF 33 1 U7 2K-BIT I2C SERIAL EEPROM 34 1 U8 DUAL 4A IDEAL DIODES with ADJ CURR LMT 16 dc1633bf DEMO MANUAL DC1633B Parts List ITEM QTY REFERENCE PART DESCRIPTION MANUFACTURER/PART NUMBER Hardware - For Demo Board Only 35 1 J1 CONN HEADER 12POS 2MM STR DL PCB FCI: 98414-G06-12ULF 36 1 J2 CONN PWR JACK 2.1mm × 5.5mm HIGH CUR CUI INC: PJ-002AH 37 6 JP1-JP6 2mm PIN HEADER 1×3 SULLINS: NRPN031PAEN-RC 38 1 JP7 2mm PIN HEADER 1×4 SULLINS: NRPN041PAEN-RC 39 4 MH1-MH4 SPACER STACKING #4 SCREW NYLON KEYSTONE: 8831 40 2 SW1, SW2 BLK SWITCH TACTILE SPST-NO 0.05A 12V C&K: PTS635SL25SMTR LFS 41 18 TP1-TP18 TERM SOLDER TURRET .219"H .109"L MILL MAX: 2501-2-00-80-00-00-07-0 42 1 TP19 TERM SOLDER TURRET .156"H .084"L MILL MAX: 2308-2-00-80-00-00-07-0 dc1633bf 17 JP1 1 2 3 C3 10nF C2 10nF JP6 MOVE JUMPER TO "EXT" WHEN APPLYING EXTERNAL VOLTAGE DAC_CH6 MOVE JUMPER TO "EXT" WHEN APPLYING EXTERNAL VOLTAGE DAC_CH5 JP5 C6 10nF C5 10nF C4 10nF MOVE JUMPER TO "EXT" WHEN APPLYING EXTERNAL VOLTAGE DAC_CH4 JP4 MOVE JUMPER TO "EXT" WHEN APPLYING EXTERNAL VOLTAGE DAC_CH3 JP3 MOVE JUMPER TO "EXT" WHEN APPLYING EXTERNAL VOLTAGE DAC_CH2 JP2 C1 10nF JUMPER VIN1 FOR EXTERNAL POWER, JUMPER +5V FOR INTERNAL POWER 14V MAX 6V MAX V3 6V MAX V4 6V MAX V5 6V MAX V6 GND R12 10.0k R6 20.0k GND R11 10.0k R5 20.0k GND R10 10.0k R4 20.0k GND R9 10.0k R3 20.0k GND R8 10.0k R2 20.0k 6V MAX V2 R7 10.0k R1 60.4k GND +5V ADC_CH5 DIVIDE BY 3 ADC_CH4 DIVIDE BY 3 ADC_CH3 DIVIDE BY 3 ADC_CH2 DIVIDE BY 3 ADC_CH1 DIVIDE BY 3 ADC_CH0 DIVIDE BY 7 V1 Test Point (OPT.) GND C32 100nF (OPT.) GND C31 100nF (OPT.) GND C30 100nF GND C29 100nF GND GND C9 10nF GND C8 10nF JP7 +3V3 1 2 3 4 R13 10k R14 10k GND SW2 SW1 GND GND GND C11 10nF R18 200k R62 100k ADC_CH11 R61 200k CUSTOMER NOTICE GND ADC_CH10 6V MAX GPI2 C10 10nF 6V MAX R16 402k R17 200k R15 402k GPI1 LED4 GREEN R60 1.5k ADC_CH9 C7 100nF +3.3V OUT Test Point *** Slave Address *** 0x1C if ASEL=low (default) 0x1D if ASEL=float 0x1E if ASEL=high GND GND 6 8 ASEL SDA 11 SCL 12 VDD33 5 14 GPI1 13 GPI2 V1 V2 V3 V4 V5 V6 GPIO1 10 GPIO2 9 GPIO3 7 4 3 2 1 16 15 U1 LTC2933 +3V3 1 2 1 2 3 1 2 3 1 2 3 1 2 3 1 2 3 R56 10k BLUE R27 3k 5 M.P. APP ENG. SCALE = NONE M.P. 5 Q3 2N7002DWA BLUE R29 3k 5 Q2 2N7002DWA PCB DES. R57 10k BLUE R25 3k Q1 2N7002DWA R55 10k B GND LED3 R30 1k GND www.linear.com GND R24 100k R21 604k LTC2933 Demo Circuit 1633B 1 LTC CONFIDENTIAL FOR CUSTOMER USE ONLY C14 10nF ADC_CH8 GPIO3 14V MAX C13 10nF R23 100k GND ADC_CH7 R20 604k LED2 14V MAX GPIO2 C12 10nF R28 1k GND GND ADC_CH6 R19 604k LED1 R22 100k GPIO1 R26 1k 14V MAX SCL I2C_SCL LTC2933 PROGRAMMABLE HEX VOLTAGE SUPERVISOR WITH EEPROM 2 RED +5V 2 RED +5V 2 RED +5V SDA I2C_SDA 1. RESISTORS R1-R12 ARE 0.1% +/-25ppm, ALL OTHER RESISTORS ARE 1% 0603. 2. ALL CAPACITORS ARE 16V 0603. 3. INTERNAL POWER FOR ADC/DAC/LEDs IS 5.0V - 1 3 2 4 1 3 2 4 1 3 2 4 3 6 4 1 3 6 4 1 3 6 4 18 1 V1/+5V DEMO MANUAL DC1633B Schematic Diagram dc1633bf GND Information furnished by Linear Technology Corporation is believed to be accurate and reliable. However, no responsibility is assumed for its use. Linear Technology Corporation makes no representation that the interconnection of its circuits as described herein will not infringe on existing patent rights. CONN_DC1613 C20 1uF +5V GND R41 10k I2C_SDA I2C_SCL R42 10k GND 3 SDA 2 GND 1 SCL U7 24AA02 VCC 4 WP 5 3 SHDN BYP 4 OUT 5 2 GND 1 IN GND NC 5 GND 0805 C23 10uF/16V C26 100nF GND GND C34 10nF R35 0 R32 OPT GND R36 0 R33 OPT +5V DO NOT INSTALL: R31, R32, R33 R34 0 VREF GND C16 100nF C15 100nF R31 OPT GND +5V 5V LDO to power board when +12V power present U6 LT1761-5 VREF 1210 GND C21 1uF C22 22uF/25V GND GND GND +12V VIN 4 +5V (100mA) 1 SDA 2 GND 3 SCL 4 +3.3V(100mA) 5 ALERT 6 GPO_1 7 OUTEN 8 GPO_2 9 GND 10 AUXSCL 11 AUXSDA 12 J1 1 3 2 3 DNC 2 GND DNC 5 1 GND VOUT 6 U5 LT6654 4.096V Ref COM 3 2 38 37 36 25 24 27 26 35 29 30 28 R64 100k GND GND ADC_CH12 GND R63 200k C33 GND 7 GND 1 4 6 31 32 33 34 39 SDA SCL CA2 CA1 CA0 ADCINP MUXOUTP MUXOUTN ADCINN F0 REF+ REF- VCC R43 R44 CH0 CH1 CH2 CH3 CH4 CH5 CH6 CH7 CH8 CH9 CH10 CH11 CH12 CH13 CH14 CH15 49.9k 10k GND 1k R66 100k +INB -INB V- V+ OUT1 OUT1 STAT1 WARN1 WARN2 STAT2 OUT2 OUT2 GND IN1 IN1 EN1 CLIM1 CLIM2 EN2 IN2 IN2 1 7 OUTB 16 15 14 13 12 11 10 9 0805 GND +5V GND LED5 GREEN R48 3.01k R37 0 ohm GND C19 10nF C27 10nF GND C24 10uF/16V 1k R59 1k GND R58 C28 100nF OUTA GND U8 LTC4415IMSE C25 1uF 1 2 3 4 5 6 7 8 GND R65 200k ADC_CH13 GND +INA -INA Diode-OR 6 5 3 2 U3 LTC6078 +5V 8 4 U2 LTC2499 100nF 8 9 10 11 12 13 14 15 16 17 18 19 20 21 22 23 R46 R47 ADC_CH0 ADC_CH1 ADC_CH2 ADC_CH3 ADC_CH4 ADC_CH5 ADC_CH6 ADC_CH7 ADC_CH8 ADC_CH9 ADC_CH10 ADC_CH11 ADC_CH12 ADC_CH13 R45 ADC Section EXP GND *** Slave Address 0x14 (default) *** CA2=low, CA1=low, CA0=low 249 9.31k 1 2 R38 0 ohm GND C17 100nF +5V GND C18 100nF R50 0 R53 OPT R49 OPT R52 0 GND 16 GND 6 CA2 10 CA1 7 CA0 9 SDA 8 SCL 2 3 4 5 R40 ZERO OHM, 4X DO NOT INSTALL: R49, R51, R53 I2C_SCL I2C_SDA DAC_CH6 DAC_CH5 DAC_CH4 DAC_CH3 DAC_CH2 MIKE P. M.P. SCALE = NONE APP ENG. M.P. B LTC2933 Demo Circuit 1633B 1 LTC CONFIDENTIAL FOR CUSTOMER USE ONLY LTC2933 PROGRAMMABLE HEX VOLTAGE SUPERVISOR WITH EEPROM www.linear.com 1. ALL RESISTORS ARE 1% 0603. 2. ALL CAPACITORS ARE 16V 0603. 3. INTERNAL POWER FOR ADC/DAC/LEDs IS 5.0V GND +5V PCB DES. R54 0 R51 OPT DAC_E 12 DAC_F 13 DAC_G 14 DAC_H 15 DAC_A DAC_B DAC_C DAC_D U4 LTC2637CMS 1 VCC 11 REF ZERO OHM, 4X R39 *** Slave Address 0x22 (default) *** CA2=low, CA1=high, CA0=low CUSTOMER NOTICE VREF DAC Section - DEMO MANUAL DC1633B Schematic Diagram dc1633bf 19 DEMO MANUAL DC1633B DEMONSTRATION BOARD IMPORTANT NOTICE Linear Technology Corporation (LTC) provides the enclosed product(s) under the following AS IS conditions: This demonstration board (DEMO BOARD) kit being sold or provided by Linear Technology is intended for use for ENGINEERING DEVELOPMENT OR EVALUATION PURPOSES ONLY and is not provided by LTC for commercial use. As such, the DEMO BOARD herein may not be complete in terms of required design-, marketing-, and/or manufacturing-related protective considerations, including but not limited to product safety measures typically found in finished commercial goods. As a prototype, this product does not fall within the scope of the European Union directive on electromagnetic compatibility and therefore may or may not meet the technical requirements of the directive, or other regulations. If this evaluation kit does not meet the specifications recited in the DEMO BOARD manual the kit may be returned within 30 days from the date of delivery for a full refund. THE FOREGOING WARRANTY IS THE EXCLUSIVE WARRANTY MADE BY THE SELLER TO BUYER AND IS IN LIEU OF ALL OTHER WARRANTIES, EXPRESSED, IMPLIED, OR STATUTORY, INCLUDING ANY WARRANTY OF MERCHANTABILITY OR FITNESS FOR ANY PARTICULAR PURPOSE. EXCEPT TO THE EXTENT OF THIS INDEMNITY, NEITHER PARTY SHALL BE LIABLE TO THE OTHER FOR ANY INDIRECT, SPECIAL, INCIDENTAL, OR CONSEQUENTIAL DAMAGES. The user assumes all responsibility and liability for proper and safe handling of the goods. Further, the user releases LTC from all claims arising from the handling or use of 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. Also be aware that the products herein may not be regulatory compliant or agency certified (FCC, UL, CE, etc.). No License is granted under any patent right or other intellectual property whatsoever. LTC assumes no liability for applications assistance, customer product design, software performance, or infringement of patents or any other intellectual property rights of any kind. LTC currently services a variety of customers for products around the world, and therefore this transaction is not exclusive. Please read the DEMO BOARD manual prior to handling the product. Persons handling this product must have electronics training and observe good laboratory practice standards. Common sense is encouraged. This notice contains important safety information about temperatures and voltages. For further safety concerns, please contact a LTC application engineer. Mailing Address: Linear Technology 1630 McCarthy Blvd. Milpitas, CA 95035 Copyright © 2004, Linear Technology Corporation 20 Linear Technology Corporation dc1633bf LT 1114 • PRINTED IN USA 1630 McCarthy Blvd., Milpitas, CA 95035-7417 (408) 432-1900 ● FAX: (408) 434-0507 ● www.linear.com LINEAR TECHNOLOGY CORPORATION 2014