DEMO MANUAL DC2080A Energy Harvesting (EH) Multi-Source Demo Board with Transducers Description The DC2080 is a versatile energy harvesting demo board that is capable of accepting piezoelectric, solar, 4mA to 20mA loops, thermal powered energy sources or any high impedance AC or DC source. The board contains four independent circuits consisting of the following EH ICs: • LTC®3588-1: Piezoelectric Energy Harvesting Power Supply • LTC3108: Ultralow Voltage Step-Up Converter and Power Manager • LTC3105: Step-Up DC/DC Converter with Power Point Control and LDO Regulator • LTC3459: 10V Micropower Synchronous Boost Converter • LTC2935-2 and LTC2935-4: Ultralow Power Supervisor with Power-Fail Output Selectable Thresholds The board is designed to connect to the Energy Micro STK development kit. It also includes two energy harvester transducers (TEG and Solar) and a terminal block for connecting a high impedance AC source. In addition, many turrets are provided, making it easy to connect additional transducers to the board. The board contains multiple jumpers that allow the board to be configured in various ways. The standard build for the board has 4 jumpers installed out of the possible 12 jumpers. The board is very customizable to the end users’ needs. This compatibility makes it a perfect evaluation tool for any low power energy harvesting system. Please refer to the individual data sheets for the operation of each power management circuit. The application section of this demo manual describes the system level functionality of this board and the various ways it can be used in early design prototyping. Design files for this circuit board are available at http://www.linear.com/demo/DC2080A L, LT, LTC, LTM, Linear Technology and the Linear logo are registered trademarks of Linear Technology Corporation. All other trademarks are the property of their respective owners. Board Photo Figure 1. DC2080A Connected to an Energy Micro Starter Kit in the “To Go” Design Kit for Energy Harvesting dc2080af 1 DEMO MANUAL DC2080A Quick Start Procedure Refer to Figures 2, 3 and 4 for the proper equipment setup and jumper settings for the following quick start procedure. 9. MOVE JP4 to JP1. Disconnect the Energy Micro starter kit from J1. 1. Configure the equipment and jumpers as shown in Figure 2. Verify the jumper settings are as follows: 10.Set PS2 equal to 6.0V. Reconfigure the test equipment as shown in Figure 3. JP1 OPEN JP2 OPEN JP3 OPEN 11.Turn on PS2. Observe the voltage on VM1 and VM2. The voltage on VM1 should be approximately 5.77 Volts and on VM2 should be 3.3V. JP4 OPEN 12.Use VM3 to observe the voltage on JP5-2. The voltage should be equal to the same level observed on VM2. JP5 OPEN 13.Turn off PS2 JP6 OPEN JP7 OPEN JP8 OPEN 14.MOVE JP1 to JP3. Disconnect PS2 from the board and set PS3 equal to 5.0V. Reconfigure the test equipment as shown in Figure 4. JP9 INSTALLED in “ON” Position JP10 OPEN JP11 OPEN JP12 INSTALLED 2. Slowly increase PS1 and observe the voltage at which VM2 turns on. VM1 should be equal to approximately 3.15V. 3. Slowly decrease PS1 towards zero. Observe the voltage on VM1 at which VM2 drops rapidly to 0V. VM1 should be equal to approximately 2.25V. 4. Turn off PS1 and remove all test equipment. 5. Install JP4 and connect the Energy Micro starter kit board to J1. 6. Apply a light source and observe the starter kit turning on and displaying the temperature of the microcontroller. 7. MOVE JP4 to JP2 and place a warm object, such as your hand, firmly on the entire TEG1, thermal electric generator. 8. Observe the starter kit turning on and displaying the temperature of the microcontroller. 15.Turn on PS3. Observe the voltage on VM1 and VM2. The voltage on VM1 should be approximately 0.34 Volts and on VM2 should be 3.3V. 16.Use VM3 to observe the voltage on JP7-2. The voltage should be approximately equal to the level observed on VM2. 17.Turn off PS3 18.Reset the Jumpers as shown in Figure 5a. JP1 OPEN JP2 OPEN JP3 OPEN JP4 INSTALLED JP5 OPEN JP6 OPEN JP7 OPEN JP8 OPEN JP9 INSTALLED in “ON” Position JP10 OPEN JP11 INSTALLED JP12 OPEN dc2080af 2 DEMO MANUAL DC2080A Quick Start Procedure Figure 2. VMCU Power Switchover Test Setup dc2080af 3 DEMO MANUAL DC2080A Quick Start Procedure Figure 3. Piezoelectric Circuitry Test Setup. Proper Measurement Equipment Setup for DC2080A Piezoelectric Circuit Testing dc2080af 4 DEMO MANUAL DC2080A Quick Start Procedure Figure 4. 4mA to 20mA Loop Circuitry Test Setup. Proper Measurement Equipment Setup for DC2080A 4mA to 20mA Loop Circuit Testing dc2080af 5 DEMO MANUAL DC2080A Quick Start Procedure Figure 5a. DC2080A Top Assembly Drawing dc2080af 6 DEMO MANUAL DC2080A Quick Start Procedure Figure 5b. DC2080A Bottom Assembly Drawing dc2080af 7 DEMO MANUAL DC2080A Application Jumper Functions JP1: Power selection jumper used to select the LTC3588-1, Piezoelectric Energy Harvesting Power Supply. JP2: Power selection jumper used to select the LTC3108, TEG Powered Energy Harvester. JP3: Power selection jumper used to select the LTC3105, powered by a diode voltage drop in a 4mA to 20mA loop. JP4: Power selection jumper used to select the LTC3459, powered by a solar panel. JP5: Routes the LTC3588-1 PGOOD signal to the Dust header PGOOD output. The LTC3588-1 PGOOD comparator produces a logic high referenced to VOUT on the PGOOD pin the first time the converter reaches the sleep threshold of the programmed VOUT, signaling that the output is in regulation. The PGOOD pin will remain high until VOUT falls to 92% of the desired regulation voltage. Additionally, if PGOOD is high and VIN falls below the UVLO falling threshold, PGOOD will remain high until VOUT falls to 92% of the desired regulation point. This allows output energy to be used even if the input is lost. JP6: Routes the LTC3108 PGOOD signal to the header PGOOD output. JP7: Routes the LTC3105 PGOOD signal to the header PGOOD output. JP8: Routes the LTC3459 PGOOD signal to the header PGOOD output. JP9: Connects the fifteen optional energy storage capacitors directly to VOUT to be used by the load to store energy at the output voltage level. The 100μF capacitors have a voltage coefficient of 0.61 of their labeled value at 3.3V and 0.47V at 5.25V. CAUTION: Only JP9 OR JP10 may be connected at any one time. Do not populate both JP9 and JP10. JP10: Connects the fifteen optional energy storage capacitors directly to VSTORE of the LTC3108 TEG powered energy harvester circuit, which is the output for the storage capacitor or battery. A large capacitor may be connected from VSTORE to GND for powering the system in the event the input voltage is lost. It will be charged up to the maximum VAUX clamp voltage, typically 5.25 Volts. The 100µF capacitors have a voltage coefficient of 0.47V at 5.25V. CAUTION: Only JP9 OR JP10 may be connected at any one time. Do not populate both JP9 and JP10. JP11: Configures the AC input for use with a PMDM vibration harvester, CAUTION: Only JP11 OR JP12 may be connected at any one time. Do not populate both JP11 and JP12. JP12: Configures the AC input for use with any high impedance source including piezoelectric transducers, electromechanical transducers or AC mains supplies with high series resistance. CAUTION: Only JP11 OR JP12 may be connected at any one time. Do not populate both JP11 and JP12. dc2080af 8 DEMO MANUAL DC2080A Application Turret Functions PZ1 (E1): Input connection for piezoelectric element or other AC source (used in conjunction with PZ2). A high impedance DC source may be applied between this pin and BGND to power the LTC3588-1 circuit. CAUTION: The maximum current into this pin is 50mA. PZ2 (E2): Input connection for piezoelectric element or other AC source (used in conjunction with PZ1). A high impedance DC source may be applied between this pin and BGND to power the LTC3588-1 circuit. CAUTION: The maximum current into this pin is 50mA. VIN, 20mV to 400mV (E3): Input to the LTC3108, TEG powered Energy Harvester. The input impedance of the LTC3108 power circuit is approximately 3Ω, so the source impedance of the TEG should be less than 10Ω to have good power transfer. TEG’s with approximately 3Ω will have the best power transfer. The input voltage range is 20mV to 400mV. BGND (E4,E6,E8,E11,E14): This is the board ground. BGND is connected to all the circuits on the board except the headers. BGND and HGND, the header ground are connected through Q3 when the VMCU voltage with respect to BGND reaches the rising RESET Threshold of U2 and disconnected when VMCU falls to the falling reset threshold. The board is configured from the factory to connect BGND and HGND when VMCU equals 3.15V and disconnect them when VMCU equals 2.25V. +VIN, 4mA to 20mA LOOP (E5): Input to the LTC3105 supplied by a diode voltage drop. The current into this terminal must be limited to between 4mA and 20mA. The current into this turret flows through diode D1 to generate the diode voltage drop and into the LTC3105 power management circuit. VIN SOLAR (E7): Input to the LTC3459, solar powered circuit with maximum power point control, provided by the LTC2935-4. The input regulation point for the MPPC function is 1.73V. The input range is 1.72V to 3.3V. HGND (E9,E13): This is the header ground. HGND is the switched ground to the header that ensures the load is presented with a quickly rising voltage. BGND and HGND are connected through Q3 when the VMCU voltage with respect to BGND reaches the rising RESET Threshold of U2 and disconnected when VMCU falls to the falling reset threshold. The board is configured from the factory to connect BGND and HGND when VMCU equals 3.15V and disconnect them when VMCU equals 2.25 Volts. VMCU (E10,E12): Regulated output of all the active energy harvester power management circuits, referenced to BGND. When VMCU is referenced to HGND it is a switched output that is passed through header, J1 to power the load. dc2080af 9 DEMO MANUAL DC2080A Application LTC3588-1: Piezoelectric Energy Harvesting Power Supply (Vibration or High-Impedance AC Source) The PGOOD_LTC3459 signal is always used to switch the output voltage on the header. Some loads do not like to see a slowly rising input voltage. Switch Q3 ensures that VMCU on the header is off until the energy harvested output voltage is high enough to power the load. The LTC2935-2 is configured to turn on Q3 at 3.15V and turn off Q3 at 2.25V. With this circuit, the load will see a fast voltage rise at startup and be able to utilize all the energy stored in the output capacitors between the 3.15V and 2.25V levels. The LTC3588-1 piezoelectric energy harvesting power supply is selected by installing the power selection jumper JP1. The PGOOD signal can be routed to the header by installing jumper JP5. If the application requires a wide hysteresis window for the PGOOD signal, the board has the provision to use the independent PGOOD signal, shown in Figure 10, generated by the LTC2935-2 and available on JP8. This signal is labeled as the PGOOD signal for the LTC3459 circuit (PGOOD_LTC3459), because the LTC3459 does not have its own PGOOD output. The PGOOD_LTC3459 signal can be used in place of any of the PGOOD signals generated by the harvester circuits. The board is configured from the factory to use the PGOOD_LTC3459 signal as the PGOOD signal to switch from battery power to energy harvesting power. E12 PZ2 E1 * The optional components R1, R4, Q1 and C5 shown on the schematic are not populated for a standard assembly. The function of R1, R4, Q1 and C5 is to generate a short PGOOD pulse that will indicate when the output capacitor is charged to its maximum value. The short pulse occurs every time the output capacitor charges up to the output sleep threshold, which for a 3.3V output is 3.312V. By populating these components the application can use this short pulse as a sequence timer to step through the E2 PZ1 J3 C29 10µF 1210 1 PZ2 2 PZ2 3 PZ1 PZ1 4 PIEZO CONNECTOR JP11 PMDM C3 22µF 25V 1210 JP12 PIEZO OUTPUT VOLTAGE SETTINGS VOUT 1.8V 2.5V 3.3V 3.6V D1 0 0 1 1 D0 0 1 0 1 VIN* R2 NOPOP R3 0Ω R8 0Ω R9 NOPOP 4 C1 1µF 6.3V 3 7 C4 4.7µF 6.3V 11 PZ1 VIN PZ1 SW 5 L1 22µH WÜRTH, 744043220 LTC3588-1 CAP VIN2 VOUT GND PGOOD D1 DO C5 0.1µF 16V OPT VMCU E10 JP1 VOUT = 3.3V VOUT_LTC3588-1 R1 4.99k OPT 6 10 LTC3588-1 PIEZOELECTRIC ENERGY HARVESTER (HIGH-IMPEDANCE AC SOURCES) C1 100µF 6.3V 1210 20% D2 1N5819HW SOD-123 OPT VMCU E11 BGND R4 50.5k OPT Q1 ZXMN2F30FH OPT PGOOD_LTC3588-1 IIN ≤ 18VPK ≤50mA > 18VPK ≤5mA DC2080A F06 Figure 6. Detailed Schematic of LTC3588-1 Piezoelectric Energy Harvesting Power Supply dc2080af 10 DEMO MANUAL DC2080A Application program sequence or as an indication of when it can perform energy-intensive functions, such as a sensor read or a wireless transmission and/or receive, knowing precisely how much charge is available in the output capacitors. When this optional circuit is not used, the amount of charge in the output capacitors is anywhere between the maximum (COUT • VOUT_SLEEP) to eight percent low. In the case where the energy harvesting source can support the average load continuously, this optional circuit is not needed. setpoint to compensate for the diode drop. When more than one of these diodes is installed and the associated energy harvester inputs are powered, the board will switch between energy harvester power circuits as needed to maintain the output voltage. LTC3108: TEG Powered Energy Harvester The LTC3108 TEG powered energy harvester is selected by installing the power selection jumper JP2. The PGOOD signal, PGOOD_LTC3108 can be routed to the header by installing Jumper JP6. The LTC3108 PGOOD signal is pulled up to the on-chip 2.2V LDO through a 1MΩ pullup resistor. Diode D2 is an optional component used to diode-OR multiple energy harvesting sources together. This diode would be used in conjunction with one or more of the other Or-ing diodes, D3, D4 or D5. When the Or-ing diodes are installed the parallel jumper would not be populated. The diode drop will be subtracted from the output voltage regulation point, so it is recommended to change the feedback resistors or select a higher output voltage VIN 20mV TO 400mV E3 1 RED (+) 2 BLACK (–) TEG1 PELTIER MODULE R13 499k T1 WÜRTH 74488540070 1 3 2 4 C12 220µF 6.3V D2E CASE + E4 BGND C8 330pF 0603, 50V VAUX C8 330pF 0603, 50V 12 11 C9 0603 OPT 10 VAUX R15 NOPOP R16 0Ω 9 8 TP4 7 VOUT2_EN VOUT2_EN TP3 VOUT2 VOUT2 If the application requires a wide hysteresis window for the PGOOD signal, please refer to the above section for a complete operational description of and how to use the independent PGOOD signal (PGOOD_LTC3459), shown in Figure 10, generated by the LTC2935-2 and available on JP8. R17 0Ω R18 NOPOP SW U3 VAUX LTC3108EDE C2 VSTORE C1 VOUT VOUT2_EN VOUT2 VS1 VLDO VS2 PGD GND C7 1µF 6.3V 1 TP1 2 C10 100µF 6.3V 1210 20% 3 4 5 6 VOUT2 C28 0.1µF 16V TP3 VLDO C14 2.2µF 6.3V 0603 VOUT = 3.3V + C13 220µF 6.3V D2E CASE PGOOD_LTC3108 VSTORE TP2 BGND LTC3108EDE TEG POWERED ENERGY HARVESTER JP2 VOUT_LTC3108 D3 1N5819HW SOD-123 OPT DC2080A F07 Figure 7. Detailed Schematic of LTC3108 TEG Powered Energy Harvester dc2080af 11 DEMO MANUAL DC2080A Application The PGOOD_LTC3459 signal is always used to switch the output voltage on the header. Some loads do not like to see a slowly rising input voltage. Switch Q3 ensures that VMCU on the header is off until the energy harvested output voltage is high enough to power the load. LTC3105: Supplied By Diode Voltage Drop In 4mA to 20mA Loop The LTC3105 4-20mA Loop, Diode Voltage Drop powered energy harvester is selected by installing the power selection jumper JP3. The PGOOD signal, PGOOD_LTC3105 can be routed to the Header by installing Jumper JP7. The PGOOD_LTC3105 signal is an open-drain output. The pull-down is disabled at the beginning of the first sleep event after the output voltage has risen above 90% of its regulation value. PGOOD_LTC3105 remains asserted until VOUT drops below 90% of its regulation value at which point PGOOD_LTC3105 will pull low. The pull-down is also disabled while the IC is in shutdown or start-up mode. When the PGOOD signal from the LTC3108 is used as the header signal, the setpoint for the LTC2935-2 circuit needs to be changed so the turn-on threshold is below the PGOOD_LTC3108 turn-on threshold of 3.053V. For example, by changing R36 to a 0Ω Jumper and R5 to NOPOP, the turn-on threshold for Q3 will be 2.99V rising and 2.25V falling. Diode D3 is an optional component used to diode-OR multiple energy harvesting sources together. This diode would be used in conjunction with one or more of the other Or-ing diodes, D2, D4 or D5. When the Or-ing diodes are installed the parallel jumper would not be populated. The diode drop will be subtracted from the output voltage setpoint, so it is recommended to change the feedback resistors or select a higher output voltage setpoint to compensate for the diode drop. When more than one of these diodes is installed and the associated energy harvester inputs are powered, the board will switch between energy harvester power circuits as needed to maintain the output voltage. E5 VIN+ 4mA TO 20mA LOOP E6 BGND If the application would benefit from a wider PGOOD hyteresis window than the LTC3105 provides (sleep to VOUT minus 10%), the PGOOD_LTC3459 signal can be used in place of any of the PGOOD signals generated by the harvester circuits. The PGOOD_LTC3459 signal is always used to switch the output voltage on the header. Some loads do not like to see a slowly rising input voltage. Switch Q3 ensures that VMCU on the header is off until the energy harvested output voltage is high enough to power the load. LTC3105EE SUPPLIED BY DIODE VOLTAGE DROP L2 10µH WÜRTH 744031100 + C16 220µF 6.3V D2E CASE D1 1.5A/200V AS1PD SMP C15 10µF 0805 6.3V 6 5 TP7 VIN SW MPPC VOUT FB U4 LTC3105EDD MPPC R34 40.2k LDO 8 PGOOD_LTC3105 4 TP7 SHDN PGOOD SHDN GND FBLDO AUX VOUT = 3.3V 7 9 1 R19 392k C19 33pF R20 750k C17 10µF 6.3V 0805 C18 1µF 6.3V JP3 VOUT_LTC3105 D4 1N5819HW SOD-123 OPT R21 499k 2 C20 33pF 3 10 C22 1µF 16V 0603 TP4 AUX R24 1.1M R25 549k LDO C21 4.7µF 16V 0805 Q2 ZXMN2F30FH OPT R22 2.8M OPT R23 200k DC2080A F08 Figure 8. Detailed Schematic of LTC3105 4mA to 20mA Loop, Diode Voltage Drop Energy Harvester dc2080af 12 DEMO MANUAL DC2080A Application The optional components shown on the schematic are not populated for a standard assembly. The function of R22 and Q2 is to generate a short PGOOD pulse that will indicate when the output capacitor is charged to its maximum value. The short pulse occurs every time the output capacitor charges up to the output sleep threshold, which for a 3.3V output is 3.312V. By populating these components the application can use this short pulse as a sequence timer to step through the program sequence or as an indication of when it can perform energy intensive functions, such as a sensor read or a wireless transmission and/or receive, knowing precisely how much charge is available in the output capacitors. When this optional circuit is not used, the amount of charge in the output capacitors is anywhere between the maximum (COUT • VOUT_SLEEP) to ten percent low. In the case where the energy harvesting source can support the average load continuously, this optional circuit is not needed. Diode D4 is an optional component used to Diode-OR multiple energy harvesting sources together. This diode would be used in conjunction with one or more of the other Or-ing diodes, D2, D3 or D5. When the Or-ing diodes are installed the parallel jumper would not be populated. The diode drop will be subtracted from the output voltage setpoint so it is recommended to change the feedback resistors or select a higher output voltage setpoint to compensate for the diode drop. When more than one of these diodes is installed and the associated energy harvester inputs are powered, the board will switch between energy harvester power circuits as needed to maintain the output voltage. LTC3459 Supplied By Solar Cell The LTC3459 solar powered energy harvester is selected by installing the power selection jumper JP4. The PGOOD signal, PGOOD_LTC3459 can be routed to the Header by installing Jumper JP8. The LTC2935-4 adds a hysteretic input-voltage regulation function to the LTC3459 application circuit. The PFO output of the LTC2935-4 is connected to the SHDN input on the LTC3459, which means that the LTC3459 will be off until VIN_LTC3459 rises above 1.743V (1.72V + 2.5%) and will then turn off when VIN_LTC3459 falls below 1.72V. The result is that the input voltage to the LTC3459 circuit will be regulated to, 1.73V, the average of the LTC2934-4 rising and falling PFO thresholds. The threshold can be adjusted for the peak operating point of the solar panel selected. In this design, because the LTC3459 output is set to 3.3V and is a boost topology, the input voltage is limited to 3.3V. VIN SOLAR 1.72V TO 3.3V E7 1 POS (+) 2 NEG (–) D6 (SOLAR PANEL) AM-5412 L3 22µH WÜRTH 744028220 + E3 BGND C23 220µF 6.3V D2E CASE C24 100µF 6.3V 1210 20% R26 0Ω R27 0Ω E14 BGND R31 NOPOP R32 NOPOP R28 0Ω U6 LTC2935CTS8-4 1 8 S2 VCC 2 7 MR S1 3 6 S0 RST 4 5 GND PFO R33 NOPOP 1 VIN 6 SW VOUT C27 0.1µF 16V 3 LTC3459EDC SUPPLIED BY SOLAR CELL U5 LTC3459EDC SHDN VOUT = 3.3V 2 R29 1.96M FB 4 GND GND 5 7 R30 1.15M C25 47pF C26 100µF 6.3V 1210 20% JP4 VOUT_LTC3459 D5 1N5819HW SOD-123 OPT DC2080A F09 Figure 9. Detailed Schematic of LTC3459 Supplied by a Solar Cell dc2080af 13 DEMO MANUAL DC2080A Application J1 SAMTEC-SMH-110-02-L-D VOUT_LTC3105 D4 1N5819HW SOD-123 OPT GND GND GND 19 12 1 JP8 PGOOD_LTC3459 E13 R5 0Ω R6 0Ω R7 NOPOP LTC3459EDC SUPPLIED BY SOLAR CELL JP4 VOUT_LTC3459 E9 HGND R10 NOPOP R11 NOPOP R12 NOPOP U2 LTC2935CTS8-4 1 8 S2 VCC 2 7 MR S1 3 6 S0 RST 4 5 GND PFO R14 NOPOP HGND Q3 ZXMN2F30FH SOT23 C27 0.1µF 16V RST R35 NOPOP D5 1N5819HW SOD-123 OPT R36 NOPOP DC2080A F10 Figure 10. Detailed Schematic of PGOOD_LTC3459 Circuit Using LTC2935-2 The LTC3459 does not have an internally generated PGOOD signal so the LTC2935-2 was used to generate a PGOOD function with an adjustable hysteresis window. The NOPOP and 0Ω resistors around the LTC2935-2 allow for customization of the PGOOD thresholds and hysteresis window. By using R14, R35 and R36 the inputs can be changed after the rising Threshold is reached, creating a large hysteresis window. The PGOOD_LTC3459 signal can be used in place of any of the PGOOD signals generated by the harvester circuits. The PGOOD_LTC3459 signal is always used to switch the output voltage on the header. The board is configured from the factory to use the PGOOD_LTC3459 signal as the PGOOD signal to switch from battery power to energy harvesting power. The PGOOD_LTC3459 signal is always used to switch the output voltage on the header. Some loads do not like to see a slowly rising input voltage. Switch Q3 ensures that VMCU on the header is off until the energy harvested output voltage is high enough to power the load. The LTC2935-2 is configured to turn on Q3 at 3.15V and turn off Q3 at 2.25V. With this circuit, the load will see a fast voltage rise at start-up and be able to utilize all the energy stored in the output capacitors between the 3.15V and 2.25V levels. Diode D5 is an optional component used to Diode-OR multiple energy harvesting sources together. This diode would be used in conjunction with one or more of the other Or-ing diodes, D2, D3 or D4. When the Or-ing diodes are installed the parallel jumper would not be populated. The diode drop will be subtracted from the output voltage setpoint, so it is recommended to change the feedback resistors or select a higher output voltage setpoint to compensate for the diode drop. When more than one of these diodes is installed and the associated energy harvester inputs are powered, the board will switch between energy harvester power circuits as needed to maintain the output voltage. dc2080af 14 DEMO MANUAL DC2080A Parts List ITEM QTY REFERENCE PART DESCRIPTION MANUFACTURER/PART NUMBER Required Circuit Components 1 3 C1, C7, C18 CAP, CHIP, X5R, 1µF, 10%, 6.3V, 0402 TDK, C1005X5R0J105KT 2 4 C2, C10, C24, C26 CAP, CHIP, X5R, 100µF, 20%, 10V, 1210 TAIYO YUDEN, LMK325ABJ107MM 15 C01 - C015 (OPTIONAL ENERGY STORAGE) 3 1 C3 CAP, CHIP, X5R, 22µF, 10%, 25V, 1210 AVX, 12103D226KAT2A 4 1 C4 CAP, CHIP, X5R, 4.7µF, 10%, 6.3V, 0603, Height = 0.80mm TDK, C1608X5R0J475K/0.80 5 3 C6, C27, C28 CAP, CHIP, X7R, 0.1µF, 10%, 16V, 0402 MURATA, GRM155R71C104KA88D 6 1 C8 CAP, CHIP, X7R, 330pF, 50V, 10%, 0603 MURATA, GRM188R71H331KA01D 7 1 C11 CAP, CHIP, X7R, 1000pF, 50V, 10%, 0603 MURATA, GRM188R71H102KA01D 8 4 C12, C13, C16, C23 CAP, POLYMER SMD, 220µF, 6.3V, 18mΩ, 2.8Arms, D2E CASE SANYO, 6TPE220MI 9 1 C14 CAP, CHIP, X5R, 2.2µF, 16V, 10%, 0603 MURATA, GRM188R61C225KE15D 10 2 C15, C17 CAP, CHIP, X5R, 10µF, 10%, 6.3V, 0805 AVX, 08056D106KAT2A 11 2 C19, C20 CAP, CHIP, NPO, 33pF, 5%, 25V, 0402 AVX, 04023A330JAT2A 12 1 C21 CAP, CHIP, X5R, 4.7µF, 10%, 16V, 0805 TAIYO YUDEN, EMK212BJ475MG-T 13 1 C22 CAP, CHIP, X5R, 1µF, 10%, 16V, 0603 AVX, 0603YD105KAT2A 14 1 C25 CAP, CHIP, NPO, 47pF, 5%, 25V, 0402 AVX, 04023A470JAT2A 15 1 C29 CAP, CHIP X5R, 10µF,10%, 25V,1210 AVX, 12103D106KAT2A 16 1 D1 DIODE, STANDARD, 200V, 1.5A, SMP VISHAY, AS1PD-M3/84A 17 1 D6 SANYO, AMORPHOUS SOLAR CELL SANYO, AM-5412 18 1 HS1 HEAT SINK, 50.8mm × 50mm FISCHER, SK 426 19 1 L1 INDUCTOR, 22µH , 0.70A, 185mΩ, 4.8mm × 4.8mm WÜRTH, 744043220 20 1 L2 INDUCTOR, 10µH, 560mA, 0.205Ω, 3.8mm × 3.8mm WÜRTH, 744031100 21 1 L3 INDUCTOR, 22µH, 270mA, 1.48Ω, 2.8mm × 2.87mm WÜRTH, 744028220 22 1 T1 TRANSFORMER, 100:1 TURNS RATIO WÜRTH, 74488540070 23 1 TEG1 PELTIER MODULE CP85438 CUI INC., CP85438 24 1 Q3 N-CHANNEL MOSFET, 20V, SOT23 DIODES/ZETEX, ZXMN2F30FHTA 25 11 R1, R3, R5, R6, R8, R16, R17, R26, R27, R28, R35 RES, CHIP, 0Ω JUMPER, 1/16W, 0402 VISHAY, CRCW04020000Z0ED 26 2 R13, R21 RES, CHIP, 499kΩ, ±1%, 1/16W, 0402, ±100ppm/°C VISHAY, CRCW0402499KFKED 27 1 R19 RES, CHIP, 392kΩ, ±1%, 1/16W, 0402, ±100ppm/°C VISHAY, CRCW0402392KFKED 28 1 R20 RES, CHIP, 750kΩ, ±1%, 1/16W, 0402, ±100ppm/°C VISHAY, CRCW0402750KFKED 29 1 R23 RES, CHIP, 200kΩ, ±1%, 1/16W, 0402, ±100ppm/°C VISHAY, CRCW0402200KFKED 30 1 R24 RES, CHIP, 1.10MΩ, ±1%, 1/16W, 0402, ±100ppm/°C VISHAY, CRCW04021M10FKED 31 1 R25 RES, CHIP, 549kΩ, ±1%, 1/16W, 0402, ±100ppm/°C VISHAY, CRCW0402549KFKED 32 1 R29 RES, CHIP, 1.96MΩ, ±1%, 1/16W, 0402, ±100ppm/°C VISHAY, CRCW04021M96FKED 33 1 R30 RES, CHIP, 1.15MΩ, ±1%, 1/16W, 0402, ±100ppm/°C VISHAY, CRCW04021M15FKED 34 1 R34 RES, CHIP, 40.2kΩ, ±1%, 1/16W, 0402, ±100ppm/°C VISHAY, CRCW040240K2FKED 35 1 U1 PIEZOELECTRIC ENERGY HARVESTING POWER SUPPLY, DFN 3mm × 3mm LINEAR TECH., LTC3588EMSE-1 36 1 U2 IC, ULTRALOW POWER SUPERVISOR WITH POWER-FAIL OUTPUT, TSOT-23, 8-PIN LINEAR TECH., LTC2935CTS8-2 dc2080af 15 DEMO MANUAL DC2080A Parts List ITEM QTY REFERENCE PART DESCRIPTION MANUFACTURER/PART NUMBER 37 1 U3 IC, ULTRALOW VOLTAGE STEP-UP CONVERTER AND POWER MANAGER, DFN 3mm × 4mm LINEAR TECH., LTC3108EDE 38 1 U4 IC, 400mA STEP-UP DC/DC CONVERTER WITH MPPC AND 250mV START-UP, DFN 3mm × 3mm LINEAR TECH., LTC3105EDD 39 1 U5 IC, 10V MICROPOWER SYNC BOOST CONVERTER, DFN 2mm × 2mm LINEAR TECH., LTC3459EDC 40 1 U6 IC, ULTRALOW POWER SUPERVISOR WITH POWER-FAIL OUTPUT, TSOT-23, 8-PIN LINEAR TECH., LTC2935CTS8-4 MURATA, GRM155R71C104KA88D Additional Demo Board Circuit Components 1 0 C5 (OPT) CAP, CHIP, X7R, 0.1µF, 10%, 16V, 0402 2 0 C9 (OPT) OPT, 0603 3 0 D2 - D5 (OPT) DIODE, SCHOTTKY, 40V, 1A, SOD-123 DIODES INC, 1N5819HW-7-F 4 0 Q1, Q2 (OPT) N-CHANNEL MOSFET, 20V, SOT23 DIODES/ZETEX, ZXMN2F30FHTA 5 0 R1 (OPT) RES, CHIP, 4.99KΩ, ±1%, 1/16W, 0402, ±100ppm/°C VISHAY, CRCW04024K99FKED 6 0 R2, R7, R9, R10, R11, R12, RES., CHIP, 0402 R14, R15, R18, R31, R32, R33, R36 NOPOP 7 0 R4 (OPT) RES, CHIP, 50.5kΩ, ±1%, 1/16W, 0402, ±100ppm/°C VISHAY, CRCW040250K5FKED 8 0 R22 (OPT) RES, CHIP, 2.80MΩ, ±1%, 1/16W, 0402, ±100ppm/°C VISHAY, CRCW04022M80FKED Hardware for Demo Board Only 1 14 E1 - E14 TURRET, 0.061 DIA MILL-MAX, 2308-2 2 10 JP1 - JP8, JP11, JP12 HEADER, 2 PINS, 2mm SAMTEC, TMM-102-02-L-S 3 2 JP9, JP10 HEADER, 3 PINS, 2mm SAMTEC, TMM-103-02-L-S 4 3 JP4, JP9, JP11 SHUNT 2mm SAMTEC, 2SN-BK-G 5 0 JP1, JP2, JP3, JP5, JP6, JP7, JP8, JP10, JP12 SHUNT 2mm, (DO NOT INSTALL) SAMTEC, 2SN-BK-G 6 1 J1 HEADER, 2×10, 20-PIN, SMT HORIZONTAL SOCKET, 0.100" SAMTEC, SMH-110-02-L-D 7 0 J2 (OPT) HEADER, 2×6, 12-PIN, SMT HORIZONTAL SOCKET WITH KEY, 0.100" SAMTEC, SMH-106-02-L-D-05 8 1 J3 PIEZO CONNECTOR 4 PIN, TERMINAL BLOCK, WR-TBL WÜRTH, 691411710002 9 4 ADHESIVE CABLE MOUNT U-STYLE CLIP WÜRTH, 523252000 10 1 KERAFOL, KL 90 40mm × 40mm × 3mm DOUBLE-SIDED ADHESIVE TAPE KERATHERM, KL 90 40mm × 40mm × 3mm 11 0.007 DOUBLE-SIDED MOUNTING TAPE, 35mm × 38mm FOR SOLAR CELL TESA, 55742 (KIT QTY = NUMBER OF REELS, ROUND UP) dc2080af 16 A B C E2 J3 PZ1 PZ1 PZ2 PZ2 3 4 1 2 PZ1 VIN E3 E8 E7 MPPC E6 E5 BGND TP5 BGND + + 5 4 R34 40.2k D1 1.5A/200V AS1PD SMP VOUT2 C12 220uF 6.3V D2E CASE 1:100 C23 220uF 6.3V D2E CASE C24 100uF 10V 1210 20% PGOOD_LTC3105 D2E CASE C16 220uF 6.3V VOUT2_EN + 2 50V 1nF C11 4 8 5 6 SHDN NOPOP R33 0 R28 PGOOD MPPC VIN U4 LTC3105EDD R32 NOPOP 0 R31 NOPOP R27 L2 VOUT2_EN OPT 0603 C9 R8 0 R2 NOPOP 7 8 9 10 11 12 SW AUX FBLDO LDO FB VOUT C22 1uF 16V 0603 TP8 AUX 4 3 2 1 RST MR VCC GND PFO S0 S1 S2 5 6 7 8 4 R25 549k R19 392k 8 9 VAUX 6 5 4 3 2 1 C27 0.1uF 16V 3 C28 0.1uF 16V + LDO SHDN FB VOUT 4 2 BGND VSTORE R29 R30 1.15 MEG 1 25V 3 1 2 1 C26 100uF 10V 1210 20% D4 1 1 1N5819HW SOD-123 OPT 2 D5 VOUT_LTC3459 JP4 LTC3459EDC SUPPLIED BY SOLAR CELL OPT 1N5819HW SOD-123 2 VOUT_LTC3105 JP3 LTC3105EDD SUPPLIED BY DIODE VOLTAGE DROP 1N5819HW SOD-123 OPT D3 VOUT_LTC3108 JP2 LTC3108EDE TEG POWERED ENERGY HARVESTER VOUT = 3.3V R23 200k C25 47pF VOUT = 3.3V D2 1N5819HW SOD-123 OPT 2 VOUT_LTC3588-1 JP1 BGND VMCU VMCU VSTORE E11 E10 E12 R12 NOPOP R7 NOPOP 12 10 8 6 4 2 VMCU V+ +5V I/O 2 RSVD KEY GND VSUPPLY 2 THIS CIRCUIT IS PROPRIETARY TO LINEAR TECHNOLOGY AND SUPPLIED FOR USE WITH LINEAR TECHNOLOGY PARTS. CO12 100uF 10V 1210 20% CO11 100uF 10V 1210 20% 11 9 7 5 3 1 2 1 4 3 RST MR VCC R14 SCALE = NONE BS NC APPROVALS NOPOP R36 0 R35 NOPOP U2 GND PFO S0 S1 S2 8 5 6 7 PGOOD NC ACC_ZOUT ACC_YOUT ACC_XOUT ACC_SELFTEST ACC_#SLEEP HGND SOT23 IC NO. DATE: 1 - 8 - 13 N/A SIZE 1 SHEET DEMO CIRCUIT 2080A 1 OF 1 1 R EV. ENERGY HARVESTING MULTI-SOURCE DEMOBOARD 1630 McCarthy Blvd. Milpitas, CA 95035 Phone: (408)432-1900 www.linear.com Fax: (408)434-0507 LTC Confidential-For Customer Use Only 2. INSTALL SHUNTS AS SHOWN. 1. ALL RESISTORS ARE 0402, 1%, 1/16W ALL CAPACITORS ARE 0402, 10% NOTE: UNLESS OTHERWISE SPECIFIED C6 0.1uF 16V 1 Q3 ZXMN2F30FH E9 BS EM HEADER 2X10 CO15 100uF 10V 1210 20% CO10 100uF 10V 1210 20% CO5 100uF 10V 1210 20% DATE 1 - 8 - 13 APPROVED NO CONNECT (USB Power) NO CONNECT (3.3V Board Power) RF_#INT RF_WAKE RF_#RESET SPI_MISO SPI_MOSI SPI_CLK SPI_#CS VMCU CO14 100uF 10V 1210 20% CO9 100uF 10V 1210 20% CO4 100uF 10V 1210 20% VSTORE_1 PRODUCTION FAB TECHNOLOGY /RST 17 15 16 14 9 13 11 18 20 3 5 7 6 4 8 10 2 1 REVISION HISTORY DESCRIPTION SAMTEC-SMH-110-02-L-D HGND J1 CO13 100uF 10V 1210 20% CO8 100uF 10V 1210 20% CO3 100uF 10V 1210 20% TITLE: SCHEMATIC E13 CO7 100uF 10V 1210 20% CO6 100uF 610V 1210 20% HGND CO2 100uF 10V 1210 20% LTC2935CTS8-2 SMH-106-02-L-D-05 1 - OPTIONAL ENERGY STORAGE REV ECO CO1 100uF 10V 1210 20% 3.3V, < 50 mA DUST HEADER 2X6 I/O 1 EHORBAT VBAT PGOOD NC CUSTOMER NOTICE R11 NOPOP R6 0 JP8 JP7 JP6 JP5 VSTORE J2 OPT OFF OFF JP10 ON JP9 CAUTION: ONLY JP9 OR JP10 MAY BE ON AT ANY TIME ON 2 LINEAR TECHNOLOGY HAS MADE A BEST EFFORT TO DESIGN A CIRCUIT THAT MEETS CUSTOMER-SUPPLIED SPECIFICATIONS; HOWEVER, IT REMAINS THE CUSTOMER'S RESPONSIBILITY TO PCB DES. VERIFY PROPER AND RELIABLE OPERATION IN THE ACTUAL APP ENG. APPLICATION. COMPONENT SUBSTITUTION AND PRINTED CIRCUIT BOARD LAYOUT MAY SIGNIFICANTLY AFFECT CIRCUIT PERFORMANCE OR RELIABILITY. CONTACT LINEAR TECHNOLOGY APPLICATIONS ENGINEERING FOR ASSISTANCE. R10 NOPOP R5 0 PGOOD_LTC3459 PGOOD_LTC3105 PGOOD_LTC3108 PGOOD_LTC3588-1 (HIGH-IMPEDANCE AC SOURCES) LTC3588EMSE-1 PIEZOELECTRIC ENERGY HARVESTER VOUT = 3.3V 3 VOUT = 3.3V TP2 TP1 1210 20% 10V C2 100uF 1.96 MEG R22 2.80M OPT Q2 ZXMN2F30FH OPT C18 1uF 6.3V L3 22uH WURTH, 744028220 C21 4.7uF 16V 0805 C17 10uF 6.3V 0805 10V 1210 20% C10 100uF C13 220uF 6.3V D2E CASE C7 1uF 6.3V Q1 ZXMN2F30FH OPT R4 50.5K OPT R1 0.00 4.99K IS OPT PGOOD_LTC3108 C14 2.2uF 16V 0603 TP3 VLDO VOUT2 VAUX 1 C5 0.1uF 16V OPT L1 22uH WURTH, 744043220 PGOOD_LTC3588-1 10 6 5 U5 LTC3459EDC 1.1M R24 R20 750k PGD VLDO VOUT2 VOUT VSTORE D1 D0 PGOOD SW GND PZ2 PZ1 VOUT 2 1 VIN2 CAP VIN C20 33pF 25V C19 33pF 25V 11 7 U6 LTC2935CTS8-4 10 3 2 R21 499k 1 9 7 VS2 VS1 VOUT2_EN C1 C2 SW U3 LTC3108EDE R9 NOPOP C4 4.7uF 6.3V 0603 3 4 U1 LTC3588EMSE -1 C1 1uF 6.3V R3 0 10uH WURTH, 744031100 R18 NOPOP R16 0 0 SHDN TP9 C15 10uF 0805 6.3V R17 0 R15 NOPOP VAUX 0603 50V 330pF C8 R13 499K 1 1 3.6V 0603 1 0 3.3V C3 22uF 25V 1210 R26 T1 WURTH, 74488540070 3 0 1 0 0 D1 D0 1 2.5V 1.8V OUTPUT VOLTAGE SETTINGS VOUT JP12 PIEZO C29 10uF 25V 1210 D6 (SOLAR PANEL) AM-5412 TP7 TP6 BGND VOUT2 TP4 VOUT2_EN E14 BGND VIN SOLAR 1.72V - 3.3V BGND +VIN 4 - 20mA LOOP BGND E4 20mV - 400mV TEG1 PELTIER MODULE CP85438 < = 50mA < = 5mA > 18Vpk IIN VIN * < = 18Vpk JP11 PMDM PIEZO CONNECTOR * BLACK (-) D VIN RED (+) 1 POS (+) 1 2 1 2 NEG (-) 2 GND 11 GND 13 3 PZ2 1 VIN GND 2 6 SW GND 19 E1 GND GND 1 12 4 GND 5 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. 7 3 2 3 2 5 A B C D DEMO MANUAL DC2080A Schematic Diagram dc2080af 17 DEMO MANUAL DC2080A 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 dc2080af 18 Linear Technology Corporation LT 0613 • PRINTED IN USA 1630 McCarthy Blvd., Milpitas, CA 95035-7417 (408) 432-1900 ● FAX: (408) 434-0507 ● www.linear.com LINEAR TECHNOLOGY CORPORATION 2013