DEMO MANUAL DC1605B Programmable Hex Voltage Supervisor Featuring the LTC2936 with EEPROM Description The DC1605B is a demonstration system that showcases the LTC®2936, a 6-channel I2C/SMBus voltage supervisor with EEPROM. The LTC2936 simultaneously monitors up to six power supply voltages and detects undervoltage and overvoltage conditions. In addition the LTC2936 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 DC1605B is a single circuit board that contains the LTC2936 and support circuitry to provide the ability to demonstrate features and capabilities of the LTC2936 without the need for external power supplies. The DC1605B demo board provides an accurate voltage supervision of six channels and offers over/undervoltage thresholds in various ranges and increments that are digitally programmable. the LTC2936 quickly and without the need for external voltmeters or power supplies. The DC1605B 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. n USB-to-I2C/SMBus/PMBus Controller (DC1613) n LTpowerPlay Software DC1605B Features n Supervise Six Power Supplies n Powered from USB Dongle, Power Jack, or VIN n I2C Adjustable OV/UV Trip Points n Guaranteed Threshold Accuracy: ±1% n I2C/SMBus Serial Interface n Internal EEPROM n Six Comparator Outputs n 256 Programmable Thresholds per Channel n Up to Three Range Settings per Channel n Two General Purpose Inputs n Three General Purpose Inputs/Outputs n Programmable Output Delays The LTC2936 chip is mounted on the topside of the board with support ADC and DAC circuitry on the back. n Autonomous Operation without Additional Software n Supported by LTpowerPlay GUI The ADC provides voltage readings for all six voltage supervisor inputs on the LTC2936 and also reads the GPI and GPIO voltages. The DAC drives six programmable voltages that are used to emulate the user’s system rails. The extra support circuitry allows the user to evaluate n LTC2936 Available in 24-Lead QFN and SSOP Packages 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 DC1605B hardware system create a powerful development environment for designing and testing configuration settings of the LTC2936. 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 LTC2936. The board comes pre-programmed with the EEPROM values appropriate for the six power supply rails on the DC1605B. Just plug and play! Design files for this circuit board are available at http://www.linear.com/demo/DC1605B L, LT, LTC, LTM, Linear Technology and the Linear logo are registered trademarks and LTpowerPlay is a trademark of Linear Technology Corporation. All other trademarks are the property of their respective owners. dc1605bf 1 DEMO MANUAL DC1605B Performance Summary Specifications are valid over the full operating temperature range. Common Characteristics PARAMETER CONDITIONS MIN Supply Input Voltage Range VPWR VPWR = VDD33 TYP MAX UNITS 3.4 13.9 V 3.2 3.4 V ±1.0 % V1 to V6 Threshold Accuracy V1 to V6 Monitoring Range Precision Range 0.2 1.2 V Low Range 0.5 3.0 V Medium Range 1.0 5.8 V Table 1. Default Thresholds and GPIO Mappings Vn_THR_LO Vn_THR_HI Default Thresholds GPIO1 GPIO2 GPIO3 OV ALERT UV CMP V1 3.2 3.4 Comp_Hi Comp_Hi Comp_Lo Comp_Lo V2 2.4V 2.6V Comp_Hi Comp_Hi Comp_Lo Comp_Lo V3 1.7V 1.9V Comp_Hi Comp_Hi Comp_Lo Comp_Lo V4 1.4V 1.6V Comp_Hi Comp_Hi Comp_Lo Comp_Lo V5 1.1V 1.3V Comp_Hi Comp_Hi Comp_Lo Comp_Lo V6 0.95V 1.05V Comp_Hi Comp_Hi Comp_Lo Comp_Lo Table 2. Default GPI Settings MANUAL RESET GPI1 GPI2 MARGIN UVDISABLE AUX COMP ü ü 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 margining (OV and UV) when active (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 and map behavior to a GPIO pin, and optionally clear the fault history. 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 LTC2936 supervises. Supervise – The act of quickly responding (compared to a fault setting) to a voltage condition that is compared to pre-programmed values. UV – Undervoltage, the result of a voltage comparison that a pin voltage is below a programmable threshold voltage. UVDIS – UV Disable. Ignore UVs 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. dc1605bf 2 DEMO MANUAL DC1605B Theory of Operation General Description The LTC2936 is a hex voltage supervisor which detects an overvoltage or undervoltage and signals the system of a fault condition. The chip has a dedicated power supply pin, VPWR, and has an internal 3.3V regulator. The chip may be powered either by powering VPWR with the onboard 5V supply, with an external 3.4V to 13.9V supply, or with an external 3.3V supply by tying VPWR and VDD33 pins together. The Chip The LTC2936 integrates six voltage supervisors with associated comparator outputs, 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. In LTpowerPlay, the user programs each voltage supervisor’s range, polarity, mapping, and high and low threshold voltages. 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 as the 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. INPUT OPTIONS INPUT/INPUT INTERNAL LOGIC GPIO OUTPUT OPTIONS OUTPUT/OUTPUT WITH OPEN DRAIN OUTPUT/OUTPUT WITH PULL-UP SMBALERT (LATCHED) WITH OPEN DRAIN OR WITH PULL-UP HIGH COMPARATOR HIGH THR SETTING HIGH FAULT Vn LOW THR SETTING LOW FAULT 3 GPIO & CMP MAPPING (Vn_CONFIG) 6 GPIO1–CPIO3 CMP1–CMP6 LOW COMPARATOR GPI1 GPI2 DC1605B F01 Figure 1. Simplified Block Diagram of Voltage Supervisor Input dc1605bf 3 DEMO MANUAL DC1605B Theory of Operation 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 LTC2936 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. INPUT OPTIONS MANUAL RESET MARGIN UV DISABLE AUXC (NO PULL-UP) INTERNAL LOGIC GPIO The Board The LTC2936 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 LTC2936 and also reads the GPI and GPIO I2C BUS GPI2 V1 GPI1 V1-V6, GPI1-2, GPIO1-3 EXT INT 24-BIT ADC (LTC2499) 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. Think of the ADC as a collection of independent voltage readings, whereas the LTC2936 simply makes a comparison to each of the Vn input voltages. The simplest demonstration of the DC1605B 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 an easy quick way to demonstrate the LTC2936’s capabilities. V2 LTC2936 V3 6-CH VOLTAGE SUPERVISOR WITH EEPROM V4 GPIO1 BLUE/RED GPIO2 BLUE/RED GPIO3 BLUE/RED V5 12-BIT ADC (LTC2637) V1-V6 V6 INT 5V, EXT 3.3V, OR EXT 4V TO 14V VPWR BLUE/RED VDD33 3.3VOUT GREEN I2C BUS TOPSIDE COMPONENT BOTTOM COMPONENT COMP (1:6) +5V FROM USB POWER SWITCH (LTC4415) 5V GREEN 5V LDO (LT1761-5) POWER JACK 6V TO 14V Figure 2. Simplified Block Diagram of the DC1605B DC1605B F02 dc1605bf 4 DEMO MANUAL DC1605B Theory of Operation may notice some lag in the update rate of the displayed voltages. Selecting a Device Address The multichannel DAC emulates a 6-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 V1-V6 jumpers to “INT” for internal DAC use, and ensure the LTC2936 is powered by setting JP9 appropriately. Powering the Board The DC1605B board can be powered from the DC1613 USB’s 5V power or from a wall-powered 12V supply (jack). The LTC2936 hex supervisor can be powered in a number of different ways. The chip itself is powered from the on-board 5V supply or an external supply. There is a table silk-screened onto the board as a reminder. If the USB power or jack power is present, the +5V LED will illuminate. The LTC2936 can then be powered by setting the jumper to “INT .” Alternatively set the jumper to “EXT” to connect an external power supply voltage to the VPWR turret. With JP9 set to “EXT,” apply an external 3.3V supply. If the jumper is removed, apply an external voltage in the range 3.4V to 13.9V. 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. NOTE: Turrets V1-V6 are tied directly to the LTC2936 independent of the jumper settings. The DC1605B uses a multiplexed ADC that is used to provide voltage readback values. The telemetry plot in the GUI is similar to a multichannel oscilloscope which is capable of displaying any parameter that is displayed in the telemetry window. 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 The DC1605B has jumpers (JP7, JP8) labeled ASEL0 and ASEL1 which allow the user to select one of nine I2C addresses. See Table 3. Table 3. Address Selection of LTC2936 I2C ADDRESS (7-BIT) ASEL1 POSITION ASEL0 POSITION DEFAULT 0x50 L L • 0x51 L Z 0x52 L H 0x53 Z L 0x54 Z Z 0x55 Z H 0x58 H L 0x59 H Z 0x5A H H Regardless of the jumper setting, the part will always respond to the I2C global 7-bit addresses 0x0C and 0x73. STATUS_WORD REGISTER The STATUS_WORD register is a read-only register that provides a summary of fault status on all six HI and LO comparator outputs, and are determined by the comparator threshold/configuration settings and Vn voltages. Faults may be disabled by setting GPI pins to MARG or UVDIS. Restoring RAM and GUI from LTC2936 To restore the operating memory (RAM) from the LTC2936 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. DC1605B LEDs The DC1605B board has two green LEDs. When USB power (DC1613 Controller) or external power (6V to 14V jack) is applied, the +5V green LED will illuminate. The +5V supply provides power to the support circuitry, not necessarily to the LTC2936. Jumper JP9 determines how the LTC2936 dc1605bf 5 DEMO MANUAL DC1605B Theory of Operation is powered. The default setting of jumper JP9 is set to internal 5V and the 3.3V OUT LED will illuminate, indicating the LTC2936 is powered. If this LED is not illuminated, the LTC2936 is not in a functioning state, the I2C bus will not communicate with the GUI, and the LTC2936 will be grayed out in the system tree. DC1605B ToolWindow and GUI Indicators 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 (LT2499). Blue indicates a logic high and red indicates a logic low. The ToolWindow is automatically populated when LTpowerPlay detects the DC1605B demo board when it starts. Note that when you save a project, the DAC settings are saved in the project file. dc1605bf 6 DEMO MANUAL DC1605B LTpowerPlay GUI Software LTpowerPlay is a powerful Windows-based development environment that supports Linear Technology power system management ICs with EEPROM, including the LTC2936 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 re-loaded at a later time. LTpowerPlay provides unprecedented system level diagnostic and debug features. It becomes a valuable diagnostic tool during board bring-up 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 DC1605B 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 dc1605bf 7 DEMO MANUAL DC1605B Quick Start Procedure The following procedure describes how to set up a DC1605B demo system. 1. Download and install the LTpowerPlay GUI: www.linear. com/ltpowerplay 3. Plug the USB-to-I2C/SMBus/PMBus Controller into a USB port on your PC. The board should power up with +5V and +3.3VOUT LEDs illuminated green. The GPIO and CMP LEDs will illuminate blue. 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 DC1605B board using the 12-pin ribbon cable. Figure 4. Connecting DC1605B Board and the DC1613 USB to I2C/SMBus/PMBus Controller dc1605bf 8 DEMO MANUAL DC1605B Quick Start Procedure 4. Launch the LTpowerPlay GUI. a. The GUI automatically identifies the DC1605B and builds a system tree for each I2C device. The system tree on the left hand side will look like this: Saving a Configuration You can make changes to the LTC2936 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. b. A green message box will be displayed momentarily in the lower left hand corner confirming that the DC1605B is communicating. The board at this point is fully operational. Quick Start Video There is a Quick Start Video that covers the basic features of the LTC2936 chip and DC1605B demo board. The video can be accessed via LTpowerPlay by navigating to the Help menu > DC1605B Content. 5. Load the Demo Configuration. In the upper left hand corner of the GUI, select File > Initialize DC1605B Demo > Demo Config (or Factory Defaults). This will load the configuration settings into the working RAM of the LTC2936, 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). Loading a DC1605B Configuration (*.proj) File with the GUI 1. In the upper left hand corner of the GUI, File > Open > browse to your *.proj file. This will load the file into the GUI. 2. Click on the “Go Online” icon, then click on the “PC → RAM” icon to write all registers. This loads the configuration into the working RAM of the LTC2936. The DAC settings are stored and retrieved from the .proj file. 3. To store the configuration to NVM (EEPROM), click on the “RAM → NVM” icon dc1605bf 9 DEMO MANUAL DC1605B DC1605B Details – Top Side Figure 5. DC1605B Top Side Details Table 2. Default Jumper Configuration REFERENCE DESIGNATOR SIGNAL NAME JP1 – JP6 V1 – V6 JP7, JP8 ASEL1, ASEL0 JP9 VPWR USAGE Selects internal vs external voltage Selects H/Z/L for LTC2936 slave address Selects internal 5V, external 3.3V, or remove to apply 3.4V to 14V turret. DEFAULT INT L INT dc1605bf 10 DEMO MANUAL DC1605B Demo Board Use Cases Use Case #1 A common configuration for the LTC2936 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 LTC2936 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. tions. 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 double-clicking 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 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 LTC2936 to ignore all UV condidc1605bf 11 DEMO MANUAL DC1605B Demo Board Use Cases 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 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 de-asserted high state. Apply an external supply voltage to the turret. A sensor or other moderate source impedance voltage may be supervised on the Vn inputs. A battery voltage may be supervised since the LTC2936 supply current is < 700µA. For example, a +5V external supply may be connected to turret V1. 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). Use Case #2 The DC1605B demo board can be configured to supervise external supply voltages. Inputs V1-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 LTC2936. Please ensure the maximum ratings on the turrets are not exceeded, most of which are 6V. 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 overvoltage or undervoltage condition. dc1605bf 12 DEMO MANUAL DC1605B Demo Board Use Cases Use Case #3 Another common configuration is one that uses a GPIO pin to drive a system reset. The LTC2936 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 LTC2936 GPI1 MR SYSTEM GPIO1 GPIO2 GPIO3 SDA SCL GPI2 RST OV ALERT MARG 1. To program GPIO1 to system reset function, first uncheck the hi_comp mapping of all V1-V6 channels 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 410 ms 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 GPI1 pushbutton is pressed, a system reset is asserted on GPIO1 and the ALERT is released if the OV condition is removed. 2. Configure GPI1 as a Manual Reset. Map GPI1 to GPIO1. dc1605bf 13 DEMO MANUAL DC1605B DC1605B Details – Top TEST POINT TURRETS FOR GPI1–2 SIGNALS GPI PUSHBUTTON SWITCHES SLAVE ADDRESS JUMPERS TEST POINT TURRETS FOR V1 – V6 TEST POINT TURRETS FOR GPO1–3 CMP1-6 HEADER V1 – V6 JUMPERS TURRET AND LED INDICATING 5V POWER FOR DC1605B I2C TURRETS TO DC1613 6V TO 14V POWER JACK dc1605bf 14 DEMO MANUAL DC1605B DC1605B Details – Bottom dc1605bf 15 DEMO MANUAL DC1605B Parts List ITEM QTY REFERENCE 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 8 C7, C15, C16, C17, C18, C26, C28, C33 4 3 C20, C21, C25 5 1 C22 6 2 C23, C24 7 3 LED1-LED3, LED6-LED11 8 2 LED4, LED5 9 9 Q1-Q9 10 6 R1-R6 11 10 R7, R10, R25, R27, R48, R67, R70, R73, R76 12 12 R8, R11, R26, R28, R30, R46, R58, R59, R68, R71, R74, R77 13 14 R9, R12, R13, R14, R41, R42, R44, R55, R56, R57, R69, R72, R75, R78 14 2 R15, R16 15 5 R17, R18, R61, R63, R65 16 3 R19, R20, R21 17 6 R22, R23, R24, R62, R64, R66 18 0 R31, R32, R33, R49, R51, R53 (OPTIONAL) 19 8 R34, R35, R36, R37, R38, R50, R52, R54 20 2 R39, R40 21 1 R43 22 1 R45 23 1 R47 24 1 R60 25 1 U2 26 1 U3 27 1 U4 28 1 U5 29 1 U6 30 1 U7 31 1 U8 Hardware: For Demo Board Only 32 1 J1 33 1 J2 34 6 JP1-JP6, JP9 35 1 JP7, JP8 36 1 JP10 37 4 MH1-MH4 38 2 SW1, SW2 39 19 TP1-TP19 40 1 TP20 PART DESCRIPTION MANUFACTURER/PART NUMBER IC PROG HEX VOLT SUPERVISOR EEPROM SSOP-24 LINEAR: LTC2936CGN#PBF CAP CER 10nF 25V 10% X7R 0603 MURATA: GRM188R71E103KA01D CAP CER 100nF 16V 10% X7R 0603 CAP CER 1µF 16V 10% X7R 0603 CAP CER 22µF 25V 10% X5R 1210 CAP CER 10µF 16V 10% X5R 0805 LED-DUAL-COLOR BLUE-RED SS SMD LED GREEN SS TYPE BRIGHT SMD DUAL N-CHANNEL FET2N7002DWA RES ARRAY 10k/20k 0.1W 0.1% 25ppm 0606 SMD RES 3k 0.1W 5% 0603 SMD MURATA: GRM188R71C104KA01D MURATA: GRM188R71C105KA12D MURATA: GRM32ER61E226KE15L MURATA: GRM21BR61C106KE15L KINGBRIGHT: APHB1608QBDSURKC PANASONIC-SSG: LNJ326W83RA DIODES INC.: 2N7002DWA-7 VISHAY: ACASN1002S2002AT VISHAY: CRCW06033K0OJNEA RES 1k 0.1W 5% 0603 SMD VISHAY: CRCW06031K0OJNEA RES 10k 0.1W 1% 0603 SMD VISHAY: CRCW060310K0FKEA RES 402k 0.1W 1% 0603 SMD RES 200k 0.1W 1% 0603 SMD RES 604k 0.1W 1% 0603 SMD RES 100k 0.1W 1% 0603 SMD RES 0Ω 0.1W 1% 0603 SMD VISHAY: CRCW0603402KFKEA VISHAY: CRCW0603200KFKEA VISHAY: CRCW0603604KFKEA VISHAY: CRCW0603100KFKEA RES 0Ω 0.1W 1% 0603 SMD 0Ω RESISTOR ARRAY, 4 RES, 1206 RES 49.9k 0.1W 1% 0603 SMD RES 249 Ω 0.1W 1% 0603 SMD RES 9.31k 0.1W 1% 0603 SMD RES 1.50k 0.1W 1% 0603 SMD IC ADC 24-BIT DELTA SIGMA 16-CH WITH I2C IC OP AMP DUAL MICROPOWER IC DAC 12-BIT OCTAL WITH I2C IC VREF SERIES PRECISION REFERENCE FIXED 5V 100mA MICROPOWER LDO 2K-BIT I2C SERIAL EEPROM DUAL 4A IDEAL DIODES WITH ADJ CURR LMT VISHAY: CRCW060366K5FKEA PANASONIC: EXB-38VR000V VISHAY: CRCW060349K9FKEA VISHAY: CRCW0603249RFKEA VISHAY: CRCW06039K31FKEA VISHAY: CRCW06031K50JNEA LINEAR: LTC2499CUHF#PBF LINEAR: LTC6078CMS8 LINEAR: LTC2637CMS-HMX12 LINEAR: LT6654AMPS6-4.096 LINEAR: LT1761ES5-5#PBF MICROCHIP: 24AA02T-I/OT LINEAR: LTC4415IMSE#PBF CONN HEADER 12POS 2mm STR DL PCB CONN PWR JACK 2.1mm × 5.5mm HIGH CUR 2mm PIN HEADER 1×3 2mm PIN HEADER 1×4 0.100" PIN HEADER 1×6 SPACER STACKING #4 SCREW NYLON BLK SWITCH TACTILE SPST-NO 0.05A 12V TERM SOLDER TURRET .219"H .109"L TERM SOLDER TURRET .156"H .084"L FCI: 98414-G06-12ULF CUI INC.: PJ-002AH SULLINS: NRPN031PAEN-RC SULLINS: NRPN041PAEN-RC SULLINS: PRPC006SAAN-RC KEYSTONE: 8831 C&K: PTS635SL25SMTR LFS MILL MAX:: 2501-2-00-80-00-00-07-0 MILL MAX: 2308-2-00-80-00-00-07-0 dc1605bf 16 DEMO MANUAL DC1605B Schematic Diagram dc1605bf 17 DEMO MANUAL DC1605B Schematic Diagram dc1605bf 18 DEMO MANUAL DC1605B Schematic Diagram dc1605bf 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. 19 DEMO MANUAL DC1605B 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 dc1605bf 20 Linear Technology Corporation LT 1014 • PRINTED IN USA 1630 McCarthy Blvd., Milpitas, CA 95035-7417 (408) 432-1900 ● FAX: (408) 434-0507 ● www.linear.com LINEAR TECHNOLOGY CORPORATION 2014