AD8450-EVALZ/ADP1972-EVALZ User Guide UG-845 One Technology Way • P.O. Box 9106 • Norwood, MA 02062-9106, U.S.A. • Tel: 781.329.4700 • Fax: 781.461.3113 • www.analog.com AD8450/ADP1972 Battery Testing and Formation Evaluation Board FEATURES GENERAL DESCRIPTION Fully functional Li-Ion cell formation and testing similar to real-world manufacturing equipment Ability to charge and discharge batteries under constant current (CC) and constant voltage (CV) control Energy recycling from discharging battery into dc bus Full featured system evaluation board based on the AD8450 and ADP1972 PC software for control and monitoring of system parameters Compatible with the system demonstration platform, SDP-S (EVAL-SDP-CS1Z) The AD8450-EVALZ/ADP1972-EVALZ evaluation kit is a good starting point for users building battery formation and test equipment based on the Analog Devices AD8450 precision analog front end and controller and the ADP1972 buck or boost pulse-width modulation (PWM) controller. The system includes an analog control board and a power stage board. EQUIPMENT NEEDED Bench power supply, 12 V dc (current depending on desired battery charge rate) Test battery EVALUATION KIT CONTENTS Analog control board Power stage board SDP-S board for data transfer to PC Standard USB A to Mini-B USB cable Printed user guide Evaluation kit software CD Business card with Analog Devices, Inc., website address for software and documentation HARDWARE REQUIREMENTS Bench power supply, 12 V dc (current depending on desired battery charge rate) Test battery or electronic load PC running Windows 7 WARNING When testing this system with lithium-ion (Li-Ion) batteries, take care not to overcharge or overdischarge the batteries, or to sink/source more than the maximum current recommended by the manufacturer of the battery. Exceeding these ratings not only damages the battery, but can also cause it to explode or catch fire. PLEASE SEE THE LAST PAGE FOR AN IMPORTANT WARNING AND LEGAL TERMS AND CONDITIONS. In addition to the AD8450 and ADP1972, the analog control board also includes an AD5689R 16-bit, precision digital-toanalog converter (DAC) to set the current and voltage set points, and an AD7173-8 24-bit, Σ-Δ analog-to-digital converter (ADC) to monitor the battery voltage and current. The board includes built-in voltage regulators so that it can be powered either from the power stage board or directly from a 12 V dc through a screw terminal connector. The analog control board connects to the Analog Devices system demonstration platform—serial (SDP-S) board through a 120-pin connector. The SDP-S board connects to the user interface software through the USB port, allowing the user to set the current and voltage set point as well as the mode of operation (charge/discharge). In addition, the user can monitor the battery voltage and current by reading the data output from the AD7173-8. The analog control board connects to the power stage board through a 32-pin header. This modular approach allows the user to design and test their own power stage boards, designed for the current output range in their end applications, with the analog control board of this reference design. The power stage board supports charge and discharge currents of up to 20 A. It includes the power MOSFETs, inductor, and input and output capacitors required to implement a buck or boost regulator, depending on the operating mode. Full specifications on the ADP1972 and AD8450 are available in the product data sheets, which should be consulted in conjunction with this user guide when working with the evaluation kit. The AD8451 can also be installed in the AD8450 socket with minimal changes. Rev. 0 | Page 1 of 33 UG-845 AD8450-EVALZ/ADP1972-EVALZ User Guide TABLE OF CONTENTS Features .............................................................................................. 1 Evaluation Board Software ...............................................................7 Equipment Needed ........................................................................... 1 Installing the Software ..................................................................7 Evaluation Kit Contents ................................................................... 1 Installation Steps ...........................................................................7 Hardware Requirements .................................................................. 1 Board Operation and Connection Sequence ..............................8 Warning ............................................................................................. 1 Running the Software with the Hardware Connected .............9 General Description ......................................................................... 1 Software Operation ........................................................................ 10 Revision History ............................................................................... 2 Description of Main Window ................................................... 10 Simplified Evaluation Board Block Diagram ................................ 3 Configuration Tab ...................................................................... 11 Evaluation Board Photograph......................................................... 4 Evaluation Board Schematics—Power Stage Board................... 13 Evaluation Board Hardware ............................................................ 5 Evaluation Board Schematics—Analog Control Board ............ 19 Setting Up the Evaluation System .............................................. 5 Troubleshooting .............................................................................. 32 Powering the System .................................................................... 5 Software ....................................................................................... 32 AD8450 Compensation Networks ............................................. 5 Hardware ..................................................................................... 32 Serial Interface .............................................................................. 5 Products on this Evaluation System ............................................. 33 Power Stage Board Description .................................................. 6 Related Links ............................................................................... 33 Analog Control Board Description............................................ 6 REVISION HISTORY 5/16—Revision 0: Initial Version Rev. 0 | Page 2 of 33 AD8450-EVALZ/ADP1972-EVALZ User Guide UG-845 SIMPLIFIED EVALUATION BOARD BLOCK DIAGRAM POWER BOARD DC_LINK POWER ADP2441 GND BUS_PWR 12V AUX 10V + DRIVER ADuM7223 DH DL CL CS+ CS– VS+ VS– AGND COMP POWER ADP7102 ADM8829 BUCK AND BOOST PWM CONTROLLER ADP1972 EEPROM ANALOG BOARD EN V AND I SENSE CC AND CV CONTROLLER AD8450 FAULT FAULT MODE ADC AD7173-8 DAC AD5689R SPI I2C USB SDP-S BOARD 13268-002 12V_AUX Figure 1. Rev. 0 | Page 3 of 33 UG-845 AD8450-EVALZ/ADP1972-EVALZ User Guide 13268-001 EVALUATION BOARD PHOTOGRAPH Figure 2. Power Stage Board (Left) and Analog Control Board with SDP-S Attached (Right) Rev. 0 | Page 4 of 33 AD8450-EVALZ/ADP1972-EVALZ User Guide UG-845 EVALUATION BOARD HARDWARE SETTING UP THE EVALUATION SYSTEM SERIAL INTERFACE Figure 26 to Figure 29 show the analog control board schematic, and Figure 17 shows the power stage board schematic. The evaluation system uses the SPI interface on the SDP-S board to read the current and voltage ADCs, and to set the current and voltage set points with the AD5689R DAC. The analog control board includes the AD8450 (U1), the ADP1972 (U2), the AD7173-8 24-bit Σ-Δ ADC (U5), and the AD5689R 16-bit DAC (U8). The 32-pin header connector mates with the power stage board and includes the PWM control signals for the MOSFET drivers, as well as the battery voltage, the current signals, and the supply voltage for the analog control board. The modular approach of the system allows users to use the analog control board with their custom design power stage. Table 1 lists the header pin names and functionalities. The power stage board includes an ADuM7223 MOFSET driver (U1), an ADP2441 buck regulator (U2) to power the MOFSET driver, a high-side and low-side power MOSFET, parallel Schottky diodes, and input/output capacitors. Connect the boards as shown in Figure 2. POWERING THE SYSTEM The evaluation system requires power from an external dc power source. The nominal input voltage is 12 V, connected through the banana input terminals labeled J2 and J4 on the power stage board. The input current depends on the desired load current (that is, battery charge current). To run the board at the rated 20 A charge current into a 5 V load, the input 12 V power supply must be capable of delivering at least 9.5 A. Table 1. 32-Pin Board to Board Connector Pinout Pin No. 1 2, 11 to 16, 18, 19, 20 to 24 3 4 5 6 Name BUS_PWR DGND Description Supply rail from power stage board Digital ground +12V DH DL MODE 7 8 9 10 EN_PWR Fault CL CL_SENSE 17 33 to 36 37 SYNC_PWR AGND CS+ 38 CS− 39 VS+ 40 VS− Supply rail to power stage board High-side driver signal Low-side driver signal Selects between charge/discharge mode Enable signal for power stage Fault detection from ADP1972 Current-limit sense line to ADP1972 Current-limit ground sense line to ADP1972 Sync pin to and from ADP1972 Analog ground Sense line from current sense resistor Sense line from current sense resistor Sense line from battery positive (+) terminal Sense line from battery negative (−) terminal The analog control board receives power through the 32-pin connector. However, this board also includes the J3 screw terminal connector, if the user wants to power the board separately. To power the analog control board independently of the power stage board, remove Resistor R108 and populate a 0 Ω jumper at R130. To turn on the board, apply power as described previously and move Switch SW1 on the power stage board to the on position. AD8450 COMPENSATION NETWORKS The evaluation system ships configured for connection to a Chroma 63600 series electronic load. If the electronic load of the user has a different response, or if the user wants to use the system with a rechargeable battery, adjust the compensation values in each of the four AD8450/AD8451 control loops to ensure system stability. Use the online AD8450/AD8451 compensator design tool at http://analogplayground.com/AD8450, and see the AN-1319 for detailed analysis. Rev. 0 | Page 5 of 33 UG-845 AD8450-EVALZ/ADP1972-EVALZ User Guide POWER STAGE BOARD DESCRIPTION ANALOG CONTROL BOARD DESCRIPTION Figure 17 shows the power stage board schematic. The bench power supply connects to the power stage board through the J2 (+) and J4 (−) banana jacks. The J3 (+) and J4 (−) banana jacks are the regulated charge/discharge terminals, and connect to an electronic load or battery. The analog control board includes the ADP1972, the AD8450/ AD8451, a DAC to configure the set points, and an ADC to monitor the current and voltage. The power stage includes input capacitors, a low-side and highside MOSFET, an inductor, and output capacitors. Depending on the mode of operation, the ADP1972 drives the power stage either in step-down (buck) or step-up (boost) mode. The board includes pads for up to two parallel MOSFETs and up to two parallel dual diodes. The ADP1972 drives the power stage in nonsynchronous mode. Therefore, having external, low forward voltage diodes in parallel with the MOSFETs is very important for operation at high efficiency. The power stage board includes a 2 mΩ sense resistor (R1) for measuring the output current to the electronic load or battery. The ADuM7223 translates the 5 V level PWM signals from the ADP1972 into low impedance, 10 V drive signals for the MOSFETs. An auxiliary step-down regulator based on the ADP2441 generates the 10 V rail for the MOSFET driver from the main input rail. The analog control board includes an ADP7102 linear regulator to generate 5 V, and an ADM8829 switched capacitor inverter that generates −5 V for the AD8450/AD8451 so that it can measure and output voltages close to 0 V. The current sense programmable gain instrumentation amplifier (PGIA) of the AD8450 is configured for a gain of 66 by populating R18 and R29. Table 2 shows how to configure the board to achieve other gains. With a gain of 66, a 20 A output current results in an output voltage of 2.64 V at TP4 (ISMEA pin). The voltage sense programmable gain different amplifier (PGDA) is configured for a gain of 0.8 by populating R41 and R42. Table 3 shows how to configure the board for other possible gains. With a gain of 0.8, a 5 V battery voltage results in a 4 V output at TP1 (BVMEA pin). Table 2. PGIA Gain Configuration Gain 26 66 133 200 Resistors with 0 Ω jumpers R19, R30 R18, R29 R17, R28 R16, R27 Table 3. PGDA Gain Configuration Gain 0.8 0.4 0.27 0.2 Resistors with 0 Ω jumpers R41, R42 R40, R43 R39, R44 R38, R45 The AD7173-8 ADC measures the voltage and current signals and reports the values to the user interface software through the SDP-S interface. The full-scale input range of the AD7173-8 is 5 V. The AD5689R DAC Output A configures the constant current setpoint, and Output B sets the constant voltage setpoint. The DAC output range is also from 0 V to 5 V. Given the current and voltage gain settings of the AD8450/AD8451, the current and voltage setpoints can be calculated as follows: Constant_Current_Setpoint = VDAC_A/(PGIA_GAIN × 0.003) Constant_Current_Setpoint = VDAC_B/(PGDA_GAIN) Rev. 0 | Page 6 of 33 AD8450-EVALZ/ADP1972-EVALZ User Guide UG-845 EVALUATION BOARD SOFTWARE INSTALLING THE SOFTWARE The evaluation board software can be downloaded from the AD8450, AD8451, and ADP1972 product pages on the Analog Devices website at www.analog.com. 1. 2. 3. 4. 5. Start the Windows® operating system and download the software from the relevant product page on the Analog Devices website at www.analog.com. Unzip the downloaded file. Run the setup.exe file. After installation is completed, plug the SDP-S board into the PC using a USB cable, and power up the evaluation board as described in the Powering the System section. Launch the software. When the software detects the evaluation board, proceed through any dialog boxes that appear to finalize the installation. 13268-004 Install the software prior to connecting the SDP-S board to the USB port of the PC to ensure that the SDP-S board is recognized when it connects to the PC. Figure 4. Click Next >> to Install Software The default location for the software is C:\Program Files (x86)\ Analog Devices\AD8450-ADP1972_SystemDemo. This location contains the executable software and support files. Proceed through the installation, allowing the software and drivers to be placed in the appropriate locations. Connect the SDP-S board to the PC only after the software and drivers have been installed. 13268-005 INSTALLATION STEPS Figure 5. Bar Showing Installation Progress 13268-003 13268-006 There are two sequences to the software installation. The first sequence installs the software related to the evaluation board, as shown in Figure 3 to Figure 6. Figure 3. Choose Folder Location (Default Folder Shown) Rev. 0 | Page 7 of 33 Figure 6. Installation Complete, Click Next >> to Finish UG-845 AD8450-EVALZ/ADP1972-EVALZ User Guide 13268-007 The second sequence of the software installation installs the system demonstration platform (SDP) drivers for the SDP-S board (see Figure 7 to Figure 10). These drivers must be installed for the evaluation board to function correctly. 13268-010 Figure 7. Installation for SDP Drivers Starting Figure 10. Click Close to Complete Installation 13268-008 When the SDP-S board is first plugged into the PC via the USB cable provided, allow the new Found Hardware Wizard to run. Check that the drivers and the board are connected correctly by looking at the Device Manager of the PC. If connected correctly, the Analog Devices System Development Platform SDP-S appears under ADI Development Tools (see Figure 11). 13268-011 Figure 8. Click Next > to Install the SDP Drivers Figure 11. Device Manager BOARD OPERATION AND CONNECTION SEQUENCE The following is the board operation and connection sequence: 1. 13268-009 2. 3. 4. 5. Figure 9. Choose Install Location (Default Folder Shown) 6. Rev. 0 | Page 8 of 33 Connect the SDP-S controller board to the evaluation board with the J4 connector (screw into place as required). Power the board with appropriate supply as described in the Powering the System section. Connect an electronic load or battery. Connect the board to the PC with the USB cable. To launch the software, click Start > All Programs > Analog Devices > AD8450 System Demo > AD8450ADP1972 Demo. Configure the set points and use the software to monitor the battery state. AD8450-EVALZ/ADP1972-EVALZ User Guide RUNNING THE SOFTWARE WITH THE HARDWARE CONNECTED UG-845 3. When the evaluation board is detected, the message in Figure 13 displays. Click Select to continue. To run the program, take the following steps: 13268-013 2. Click Start > All Programs > Analog Devices > AD8450 System Demo > AD8450-ADP1972 Demo. If the SDP-S board is not connected to the USB port when the software is launched, a connectivity error displays (see Figure 12). Connect the evaluation board to the USB port of the PC, wait a few seconds until the board appears in the lower section of the window, and click Select (see Figure 12). Figure 13. Software Detects Evaluation Board 4. 13268-012 1. Figure 12. SDP-S Board Not Connected to the USB Port Rev. 0 | Page 9 of 33 The software then connects to the board, and the software window opens. UG-845 AD8450-EVALZ/ADP1972-EVALZ User Guide SOFTWARE OPERATION When the software launches, the window shown in Figure 14 opens and the software begins communicating with the analog control board. The software starts with the power stage disabled, which allows the user to configure the setpoints before any current flows into the load. DESCRIPTION OF MAIN WINDOW The main window shows the system status at a glance. The system diagram quickly shows whether the system is set to either charge or discharge mode, and the digital indicators next to the battery icon and the current icon show the readings for battery voltage and current. The Amp-Hours indicator is a simple integrator. It takes the battery current measurement every 100 ms, calculates the equivalent amp-hour value, and accumulates the result with the previous result. This allows the system to measure battery capacity from the time the battery is enabled until it is fully charged/discharged, or until the mode setting is changed. To change the constant current or constant voltage setpoint values, type the new value into the corresponding field, in units of amps or volts, respectively, and press the Enter key. The time data chart shows a strip chart of current and voltage as the battery charges or discharges. Figure 15 shows the main window in constant current, discharge mode. 13268-014 The POWER STAGE OFF button indicates that the system is disabled. Clicking this button enables the power stage (and the button changes to POWER STAGE ON). Similarly, the MODE: CHARGE button indicates that the system is currently in charge mode. Clicking this button changes the power stage configuration (the button changes to MODE: DISCHARGE). Figure 14. ADP1972 + AD8450 System Demo Software Main Window Rev. 0 | Page 10 of 33 UG-845 13268-015 AD8450-EVALZ/ADP1972-EVALZ User Guide Figure 15. Software Main Window During Normal Operation CONFIGURATION TAB Calibration Controls Click Configure System to open the configuration tab (see Figure 16). This tab contains several options described in the following sections. The gain correction and offset controls allow the user to perform system level calibration. The measurements displayed in the main window are the nominal output from the ADC scaled with the equation Sample Timing Controls Sample Interval sets the rate at which the system updates the battery voltage and current measurements. The sample interval is the rate at which the screen updates, and is completely independent of the analog control loop. Graphing Sampling Rate Multiple sets the update rate for the main window as a ratio of the sample interval. For example, setting the Sample Interval to 1 sec and the Graphing Sample Rate Multiple to 1 results in chart updates every second. Setting the Graphing Sampling Rate Multiple to 5 results in graph updates only every 5 sec. Output Measurement = (Nominally Scaled Measurement − Offset Correction) × Gain Correction where Nominally Scaled Measurement uses the typical values for the sense resistor, the ADC reference, the AD8450 gain, and so on. The calibration controls, shown in Figure 16, are as follows. Current Gain Correction is the gain correction constant for the current measurement. The default is 1. Current Offset (A) is the offset correction constant for the current channel, in units of amps. The default is 0. Voltage Gain Correction is the gain correction constant for the voltage measurement. The default is 1. Voltage Offset (V) is the offset correction constant for the voltage channel in units of volts. The default is 0. Rev. 0 | Page 11 of 33 UG-845 AD8450-EVALZ/ADP1972-EVALZ User Guide Hardware Configuration Controls As indicated in the main window, the hardware configuration controls must reflect the actual configuration of the power stage and analog control boards. If there is a mismatch between the settings in these controls and the actual hardware configuration, excessive current can be sourced into (or sunk from) the battery. Sense Resistor (Ohms) is the nominal value of the sense resistor on the power stage board. The default is 0.002 Ω (2 mΩ). Current Sense Gain is the gain setting for the AD8450 programmable gain current sense instrumentation amplifier. The default value is 66. Voltage Sense Gain is the gain setting for the AD8450 programmable gain differential voltage sense amplifier. The default is 0.8. DAC Range(V) is the nominal DAC output range, with a default of 5 V. Clicking Reset Ahr Meter resets the amp-hour counter in the main window to 0. 13268-016 ADC Range (V) is the nominal ADC input range, with a default of 5 V. Figure 16. Configuration Tab Rev. 0 | Page 12 of 33 R21 10K R15 82K 1 C22 NC VIN_AUX Vin- J4 Vin+ 1 R12 10K R33 10K ADP2441 U2 R30-1011602 R19 182K R30-1011602 EN COMP FB C17 1uF C15 1uF 680uF C3 0.30uH L1 MH2 R18 51K 3 2 1 LED D13 680uF C7 Vin+ 1 MH1 5V PG_AUX 270pF C25 R11 158K 10V_L R13 118K PGND TP11 20A/63VDC 1 2 1 F1 C4 C27 10nF 7 8 9 TP14 12V 10uF VDU DH_DRV TP8 R7 2 2 R5 BSZ019N03LS 2 10K R6 2 R3 Q4 BSZ019N03LS 10K 2 DH B240A-E3 D6 SBLB25L30CT SW 1 2 1 4.7uH D7 SBLB25L30CT L2 CL C31 NC C8 100uF Vin+ 12V DL EN CL AGND C13 100uF C9 100uF 1 C14 NC C32 NC R1 0.002 VS- VS+ Vo+ R36 NC R37 NC 1 1 J3 1 1 J12 VS+ TP1 VS+ Vo+ CS- CS+ R30-1011602 MH4 Jumper Vin+ 12V 10V_L TP15 1 BZX585-B5V1 D10 5V R14 330 STANDOFFS AUXILIARY POWER 10uF C26 100nF C24 10uF 10V_L C23 C18 4.7uF GND_AUX 2 L3 33uH VIN_AUX D9 PMEG4005CT EN LSS C20 10uF R30 0 PG_AUX 1 TP23 PG_AUX D11 1PS79SB31 10V_L DH_DRV SW DL_DRV VDU C16 10uF PGND TP12 DL_DRV 5.1K TP22 CTRL 1 R23 10 1 2 3 4 5 6 7 C33 NC 5V R24 5.1K 5.1K Vin+ R27 56K R20 R17 5.1K DL R10 0.002 Q6 NC R26 5.1K C29 10nF U4 ZR431F01TA 5V R31 0 R32 0 C34 NC C21 100nF CTRL 1 JP3 Short Pin HALF BRIDGE DRIVER Q7 2PB1219A 2 Jumper R16 CTRL 1 J8 ADuM7223 VDDB VOB GNDB VDDA VOA GNDA BSS138PW Q8 10 9 8 13 12 11 U1 CL- 1 TP10 GND1 VIA VIB NC1 DISABLE NC2 VDD1 CL- R9 R8 D8 MBR130LSFT1 DL_DRV 5V EN R35 0 C28 10nF FAULT TP24 CL R25 5.1K R22 7.15K R34 NC Vo+ ON/OFF D12 NC TP13 LOCAL OVP U3 ZR431F01TA VS+ 1K C30 100nF SW1 ON/OFF R28 R29 5.1K FAULT LSS JP5 Short Pin TP20 MODE TP18 SYNC TP16 DL GND CS+ VS+ SYNC AGND 1 1 1 3 5 7 9 11 13 15 17 19 21 23 25 27 29 31 A1 A2 A3 A4 A5 A6 A7 A8 A9 A10 A11 A12 A13 A14 A15 A16 MODE SYNC DL 2 4 6 8 10 12 14 16 18 20 22 24 26 28 30 32 J10 J5 VS- GND CSVS- AGND DH MODE FAULT CLAGND Vo- 1 GND AGND AGND DH 1 1 1 TEST POINTS TP21 AGND TP19 AGND TP17 DH ANALOG BOARD CONNECTOR 09221326921 B1 B2 B3 B4 B5 B6 B7 B8 B9 B10 B11 B12 B13 B14 B15 B16 J6 POWER STAGE J9 Jumper TP9 VS1 GND TP27 PGND J7 C12 DH_DRV TP6 D2 SW TP5 CS- 1 10uF C11 C6 10uF C5 10uF Q3 Q2 NC SBLB25L30CT SBLB25L30CT CS+ TP2 1 EN Q5 BSS138PW C10 330uF D4 D3 TP3 1 TP7 R4 10K BZX585-C15 D5 0.47uF C2 Q1 BSC030P03NS3 TP26 1 R2 10K LSS C1 TP25 C19 10nF EN R30-1011602 MH3 PGND SW VIN 10uF 10 0.47uF 1 J2 12 1 1 Vin+ 3 2 Jumper 1 1 J1 5 AGND PGOOD 4 VCC 11 FREQ BST EP 1 B240A-E3 2 1 TP4 1 SS/TRK 6 1 1 1 Rev. 0 | Page 13 of 33 1 Figure 17. Power Stage Board Schematic 13 2 D1 AD8450-EVALZ/ADP1972-EVALZ User Guide UG-845 EVALUATION BOARD SCHEMATICS—POWER STAGE BOARD 13268-017 UG-845 AD8450-EVALZ/ADP1972-EVALZ User Guide Table 4. Power Stage Board Bill of Materials Reference Designator C1, C2 C3, C7 C4, C5, C6, C11, C12 C8, C9, C13, C31 C10, C22, C32, C33, C34, D12, Q2, Q6, R34, R36, R37 C14 C15, C17 C16, C20, C23, C24 C18 C19, C27 C21, C26, C30 C25 C28, C29 D1, D2 D3, D4, D6, D7 D5 D8 D9 D10 D11 D13 F1 J1, J7 to J9 J2 to J5 J6 J10, J12, JP3, JP5 L1 L2 L3 MH1 to MH4 Q1 Q3, Q4 Q5, Q8 Q7 R1 R2, R4, R6, R9, R12, R21, R33 R3, R5, R7, R8 R10 R11 R13 R14 R15 R16, R17, R20, R24, R26, R29 R18 R19 R22 R23 R25 R27 R28 R30 to R32, R35 SW1 TP1 to TP27 U1 U2 U3, U4 Description 0.47 μF/100 V, X7R, MLCC 680 μF/35 V, aluminum electrolytic capacitor 10 μF/50 V, X5R, MLCC 100 μF/6.3 V, X5R, MLCC 10 mm diameter, aluminum solid electrolytic capacitor Manufacturer Murata Panasonic Murata Murata Not applicable Part No. GRM21BR72A474KA73 EEVFK1V681Q GRM32ER61H106KA12 GRM32ER60J107ME20 Not applicable 1000 μF/6.3 V, aluminum solid electrolytic capacitor 1 μF/16 V, X7R, MLCC 10 μF/25 V, X5R, MLCC 4.7 μF/50 V, X5R, MLCC 10 nF/50 V, C0G, MLCC 100 nF/16 V, X7R, MLCC 270 pF/50 V, C0G, MLCC 10 nF/25 V, X7R, MLCC 40 V/2 A Schottky Diode 30 V/12.5 A (per) Schottky rectifier 15 V Zener diode, 5% 30 V/1 A Schottky diode 500 mA, low VF, dual, mega Schottky barrier rectifier 5.1 V Zener diode, 2% 30 V/0.2 A, ultralow VF, mega Schottky diode SMT, blue LEDs, 1206 package size 20 A, 63 V dc, fast acting fuse Power connector jumper on PCB 15 A banana jacks, pierced lug terminal 2-row, 32-pin header Single pad 0.30 μH/33 A inductor 4.7 μH/37 A inductor 33 μH/0.47 A inductor Standoff, HEX M3, THR, brass, 16 mm 30 V/3 mR/100 A power MOSFET 30 V/1.9 mR/40 A power MOSFET 60 V/1.6 R/0.32 A MOSFET 50 V/0.5 A PNP transistor 2 mΩ, 3637, SMD, 0.1% current sensing resistor 10 kΩ, 0603, SMD, 1% generic resistor 2 Ω, 0603, SMD, 5% generic resistor 2 mΩ, 2512, SMD, 1% current sensing resistor 158 kΩ, 0603, SMD, 1% generic resistor 118 kΩ, 0603, SMD, 1% generic resistor 330 Ω, 0805, SMD, 5% generic resistor 82 kΩ, 0603, SMD, 1% generic resistor 5.1 kΩ, 0603, SMD, 1% generic resistor 51 kΩ, 0603, SMD, 1% generic resistor 182 kΩ, 0603, SMD, 1% generic resistor 715 Ω, 0603, SMD, 1% generic resistor 10 Ω, 0603, SMD, 1% generic resistor 510 Ω, 0603, SMD, 1% generic resistor 56 kΩ, 0603, SMD, 1% generic resistor 100 Ω, 0603, SMD, 1% generic resistor 0 Ω, 0603, SMD 5% generic resistor Switch, slide, SPDT, 30 V/2 A, PC mount PC test point, multipurpose, 1.78 mm diameter, red Isolated, 4 A, half-bridge gate driver 36 V, 1 A, synchronous step-down dc-to-dc regulator VREF = 2.5 V, 1% Nichicon TDK Murata Murata Murata TDK Murata Murata Vishay Vishay NXP ON Semiconductor NXP NXP NXP CML Schurter Not applicable Emerson Harwin None Coilcraft Vishay Coilcraft Harwin, Inc. Infineon Infineon NXP NXP Vishay Yageo Yageo Stackpole Electronics, Inc. Yageo Yageo Yageo Yageo Yageo Yageo Yageo Yageo Yageo Yageo Yageo Yageo Yageo E-Switch Keystone Analog Devices Analog Devices Diodes, Inc. RHS0J102MCN1GS C1608X7R1C105KT GRM188R61E106MA73 GRM21BR61E475KA12 GRM1885C1H103JA01 C1608X7R1C104KT GRM1885C1H271JA01 GRM188R71E103KA01 B240A-E3 SBLB25L30CT-E3 BZX585-C15 MBR130LSFT1 PMEG4005CT BZX585-B5V1 1PS79SB31 CMD15-21UBC/TR8 3413.0331.22 Not applicable 108-0740-001 09221326921 Not applicable XAL7070-301ME IHLP8787MZER4R7M51 LPS4012-333MR P275RD125 BSC030P03NS3 BSZ019N03LS BSS138PW 2PB1219A Y14880R00200B9R RC0603FR-0710KL RC0603JR-072RL CSNL2512FT2L00 RC0603FR-07158KL RC0603FR-07118KL RC0805JR-07330RL RC0603FR-0782KL RC0603FR-075K1L RC0603FR-0751KL RC0603FR-07182KL RC0603FR-0715RKL RC0603FR-0710RL RC0603FR-0510RKL RC0603FR-0756KL RC0603FR-07100RL RC0603JR-070RL EG1903-ND 5010 ADuM7223ACCZ ADP2441ACPZ ZR431F01TA Rev. 0 | Page 14 of 33 UG-845 13268-018 AD8450-EVALZ/ADP1972-EVALZ User Guide 13268-019 Figure 18. Power Stage Board Top Silkscreen Figure 19. Power Stage Board Top Layer Rev. 0 | Page 15 of 33 13268-020 AD8450-EVALZ/ADP1972-EVALZ User Guide Figure 20. Power Stage Board Layer 2 13268-021 UG-845 Figure 21. Power Stage Board Layer 3 Rev. 0 | Page 16 of 33 UG-845 13268-022 AD8450-EVALZ/ADP1972-EVALZ User Guide 13268-023 Figure 22. Power Stage Board Layer 4 Figure 23. Power Stage Board Layer 5 Rev. 0 | Page 17 of 33 13268-024 AD8450-EVALZ/ADP1972-EVALZ User Guide Figure 24. Power Stage Board Bottom Layer 13268-025 UG-845 Figure 25. Power Stage Board Bottom Silkscreen Rev. 0 | Page 18 of 33 AD8450-EVALZ/ADP1972-EVALZ User Guide UG-845 EVALUATION BOARD SCHEMATICS—ANALOG CONTROL BOARD A G ND A G ND C80 R116 CS_P 1K 1nF A G ND C81 R117 1K 1nF C8 R3 1K 1nF I SV P C9 R119 1K 1K 10nF C82 C83 C10 1nF 1nF 1nF A G ND A G ND A G ND A G ND A G ND A G ND C84 R120 V S_P R7 1K NP C85 R121 NP C86 R122 0 0 0 R123 R124 R125 0 0 V S_N C88 NP A G ND C89 0 NP A G ND Figure 26. Voltage and Current Sense Input Filters Rev. 0 | Page 19 of 33 I SV N NP BVP C87 NP BVN C90 NP A G ND 13268-026 R118 CS_N R17 NP R16 NP 0 R18 NP R19 NP NP 0 R29 NP R30 20 19 18 17 16 15 14 13 12 11 10 9 8 7 6 5 4 3 2 I SV N RGN RGNS I SGN0 I SGN0S I SGN1 I SGN1S I SGN2 I SGN3 RFB N RFB P I SGP3 I SGP2 I SGP1S I SGP1 I SGP0S I SGP0 RGPS RGP I SV P U1 an t e n n a i n t e rf e re n ce A GND T P5 A GND T P6 K e e p t h e u n u se d l i n e as sh o rt as p o ssi b l e d u ri n g l ayo u t t o avo i d M u l t i p l e P GI A /P GDA gai n i s aval i ab l e w i t h e xt e rn al 0 o h m re si st o r P GI A /P GDA I SV N R28 R27 R1 8 R2 9 p o p u l at e R1 6 R1 7 R1 9 R2 7 R2 8 R3 0 n o t p o p u l at e Gai n =6 6 I SV P 1 79 IM A X 78 77 NP NP NP R11 NP R126 A V E E _PGI A A GND A D C_I 0 R36 I SM E A R127 T P4 A V CC_PGI A R8 0 A D8450 0 0 NP 0 +12V a R50 A GND 0. 1uF C26 A V CC_PGI A R4 1 R4 2 p o p u t at e -5V a 0 R51 0 D A C_I _D B A GND 0. 1uF C28 0 R9 T P3 V IN T 62 IV E1 64 NP T P1 0 0 R37 4. 7K 0. 1uF C30 -5V a 0 R53 A GND 41 42 43 44 45 46 47 48 49 50 51 52 53 54 55 56 57 58 59 60 0 +12V a R1 BVM EA 10K R34 OV PR V RE F OCPR OCPS DGND FA UL T DV CC NC V SE T V SE T B F V V P0 NC VVE0 VVE1 NC V I NT A V CC V CL N V CT RL V CL P A V E E _L OOP A V CC_PGDA A GND R129 +12V a R52 0 R47 A V CC_PGDA A V E E _PGDA R45 A V E E _PGI A NP R42 R43 R44 R3 8 R3 9 R4 0 R4 3 R4 4 R4 5 R3 6 n o t p o p u l at e Gai n =0 . 8 , NP 0 R38 R39 R40 R41 74 R35 A GND R10 0 75 R1 1 n o t p o p u l at e d 80 CS H B V P 3S 21 73 V RE F A D C_I _D B 70 A V CC o f f se t sh i f t d i sab l e BV P BV P3 22 OA V P BV P2 23 I S RE F L S 24 BV P1 76 I S RE F L BV P0 25 A GND V RE F 26 I S RE F H B V RE F H 27 A GND 28 72 A V EE 29 B V RE F L 71 ISM EA 30 B V RE F L S 69 OA V N BV N 1 32 BV N 0 31 BV N D A C_I 67 ISET BV N 3 68 OA V O BV N 2 33 61 A V EE IV E0 A D C_V _D B 34 66 NC B V N 3S 35 65 IV E0 A V EE 36 IV E1 37 63 NC A V CC 38 V IN T M ODE 39 O V PS 40 BV M EA A D C_V Figure 27. AD8450 and Compensation Networks M ode 0 R12 0 A GND NP DA C_V R31 10K 11. 1K R25 Faul t DA C_V _DB I SM E A V SE T B F V V P0 VVE0 VVE1 V I NT 0. 1uF 0. 1uF C34 A GND 5V d 2 .5 * (4 . 7 +1 0 )/ 1 0 / 0 . 8 =4 . 6 V V o l t age P ro e ct i o n t o : 4 . 6 V 2 .5 * (1 1 . 1 +1 0 )/1 0 /( 6 6 * 0 . 0 0 2 )=4 0 A DGND D1 NP 0. 1uF C11 A GND 5V d 0. 1uF C6 A V E E _L OOP Cu rre n t P ro t e ct i o n t o : 4 0 A C32 A GND 0 R2 C16 DGND A GND T P2 0 -5V a C1 6 n o t p o p u l at e d A V E E _PGDA A GND 10uF C5 A GND R24 5V d 0 R23 R128 A V CC_L OOP A GND 5V d A GND 0. 1uF C4 A V CC_L OOP COM P 10K R46 10K R26 10K R20 10K R13 10K R4 10K R48 NP C23 10K R32 NP C20 10K R21 NP 0 R49 0 R33 0 R22 0 10K C17 R15 0 R6 R14 NP C13 10K R5 NP C1 IV E0 IV E1 V V E1 V V E0 ISM EA ISM EA BV M EA V SETBF BV M EA Rev. 0 | Page 20 of 33 V V P0 NP C24 NP C21 NP C18 NP C14 NP C2 10nF C25 10nF C22 10nF C19 10nF C15 10nF C3 V IN T V IN T V IN T Di sch arge , CV Lo o p Di sch arge , CV Lo o p Ch arge , CV Lo o p Ch arge , CC Lo o p Di sch arge , CC Lo o p A GND V IN T UG-845 AD8450-EVALZ/ADP1972-EVALZ User Guide 13268-027 DGND M ODE NP DGND JP2 +12Vd R60 10K E N_PW R 1 2 DGND FU2 FU1 FUSE FUSE +12V NP R130 0 R108 DGND R1 3 0 p o p o l at e d f o r d i sch arge m o d e R1 0 8 p o p o l at e d f o r ch arge m o d e 4. 7uF C37 0 L1 R65 1uF R64 NP DGND C44 10uF DGND 3 1uF R68 200 10 11 12 6 5 13 7 R57 4.7K C41 DGND R56 4. 7K D4 L ED R67 4. 7K R6 4 n o t p o p u l at e d DGND C40 47pF NP NPR61 R58 DGND DGND +12V d L1 n o t p o p u l at e d DGND R63 100K M ODE EN_PW R DGND SYNC_PWR DGND NP I nduct or C43 NP 10uF d e f au l t se t t i n g f o r ch arge m o d e , p o p u l at e R1 0 8 , d e p o p u l at e R1 3 0 CON2 J3 B US_PWR Se l f Po w e rO n : p o p u l at e p u l l u p re si st o r Po w e rBo ard Co n t ro l : p o p u l ate th e se ri e s re si sto r o n PW R_CO N SDP Co n t ro l : p o p u l at e t h e se ri e s re si st o r o n SDP _S_CO N EN _PW R Lo gi c: NP JP1 5Vd D6 Z ENER C7 NP FAUL T COM P 8 5 ADP7102 VI N EN U3 DGND 0 R55 0 R54 CL V OUT SENSE PG 1 4 V @ Bu s _Pw r = 2 4 V, Ze n ar = 1 4 . 7 V 1 2 7 Faul t COM P CL _Sense 1 0 V @ Bu s _Pw r = 1 2 V, Ze n ar =1 0 . 7 V +1 2 Va: No t act u al l y 1 2 V DGND 4.7uF C49 +12Va 0 R92 20K R59 C7 n o t p o p u l at e d 8 9 15 16 1 2 +1 2 Va @ 1 0 m A DGND CL DL DH GNDs e n s e R107 0 A DP1972 DGND 0. 1uF C50 Q1 SS DM A X FREQ M ODE EN SCFG SYNC V REG V IN GN D 14 U2 E PA D 4 GN D 3 DGND DGND 4.7K T P7 C45 4. 7uF DGND DGND DL D2 NP C46 4.7uF D5 L ED DGND R69 4. 7K 5Vd 0 FB1 C47 4.7uF DGND 5Va +5 Va @ 5 m A t o av o i d a f fe c ti n g o th e r si gn a ls CS_P VS_P SYNC_PWR DL E N_PW R CL R1 0 5 n o t p o p u l at e d AC si gn a l o u t p u t , p u t g ro u n d a ro u n d i t SYN C_P W R: DGND C39 C3 8 , C3 9 NP n o t p o p u l a t e d R1 0 6 n o t p o p u la t e d R70 NP R106 DGND NP C38 DH 2 U4 NP +12V ADM 8829 V IN A GND DGND R105 BUS_PWR 6 CA P+ C36 GN D 6 1 3 5 7 9 11 13 15 17 19 21 23 25 27 29 31 2 4 6 8 10 12 14 16 18 20 22 24 26 28 30 32 4. 7uF C42 DGND VOUT CON_PWR J2 3 CA P - +12V d GN D Rev. 0 | Page 21 of 33 9 Figure 28. ADP1972 and Local Power Supplies 4 R5 8 R6 1 n o t p o p u l at e d 1 DGND DGND D3 L ED R66 4. 7K -5V a -5 V a @ 1 0 m A CS_N V S_N DH M ODE Faul t CL _Sense C48 4.7uF AGND DGND DGND AD8450-EVALZ/ADP1972-EVALZ User Guide UG-845 13268-028 2 3. 3Vd / L DAC / RE SET GAI N RST SEL / SY NC_DA C SCL K DIN DOUT DGND C73 1uF 3.3V d R103 4. 7K 33 R104 4.7K 6 9 15 10 16 13 12 14 8 R94 4. 7K R99 VOUT AGND 0. 1uF A GND 100pF 33 / L DAC / RE SET GAI N RST SE L / SY NC SCL K SDI N SDOUT U8 R90 2. 5Vref out AGND C66 1uF C61 100pF C65 NP 1uF AGND 5Vref 33 R89 A GND A GND 100pF C51 C55 100pF R82 C54 100pF A GND C52 100pF C53 33 33 R72 AGND R73 C74 4. 7uF A DR4550 V IN U7 33 R78 AGND C64 A GND +12V a 2.5V ref out A DC_I 33 GN D 4 A DC_V R80 AGND C58 100pF 11 V l ogi c 33 A D5689R AGND 4 6 39 40 1 37 36 35 34 33 32 31 30 29 28 27 26 5 4 3 2 NC V OUT B NC V OUT A A GND C70 0.1uF 0. 1uF C67 AGND 1 23 G PIO 0 2 7 6 3 AGND REFOUT REF- REF+ AI N16 AI N15 AI N14 AI N13 AI N12 AI N11 AI N10 AI N9 AI N8 AI N7 AI N6 AI N5 AI N4 AI N3 AI N2 1K R100 1K R96 A GND 0. 1uF 25 G PIO 2 A D7173-8 0. 1uF DGND I OV DD DOUT DI N SCL K / CS / ERROR / SY NC XT A L 2 XT A L 1 NP R95 5Va C27 1uF 7 10 9 22 21 20 14 15 16 17 18 19 13 12 5Vref C12 A GND 1uF C78 1uF R93 REGCA PA AVDD2 AVDD1 REGCA PD A GND 0 A GND C76 1uF C77 AGND C75 AI N1/ REF2+ AI N0/ REF2- U5 11 PD SW R86 5 VDD GN D Figure 29. ADC, DAC, and SDP-S Connector V RE F 38 G PIO 3 PA D D L E 2.5V ref out DAC_V DAC_I 0 R85 3.3V d R77 4. 7K DGND R101 NP R97 0 3. 3Vd C72 1uF AGND R91 GAI N 5Va Faul t DOUT DI N SCL K Se t Gai n t o 2 R88 10K DOUT / L DAC / RESET M ODE 33 R115 R109 R110 R81 DGND R102 0 RST SE L R9 8 n o t p o p u l at e d R98 Re se t t o ze ro scal e NP / SYNC_DA C DGND 3. 3Vd 4. 7K R87 / CS_ADC / ERROR_A DC / SY NC_ADC R1 0 1 n o t p o p u l at e d 0 C63 1uF A GND C60 1uF DGND C57 1uF R76 4.7K AGND C71 0.1uF 0.1uF C68 0.1uF C62 0.1uF C59 0.1uF C56 33 R84 R75 4. 7K 3.3V d 33 33 33 DGND 60 59 58 57 56 55 54 53 52 51 50 49 48 47 46 45 44 43 42 41 40 39 38 37 36 35 34 33 32 31 30 29 28 27 26 25 24 23 22 21 20 19 18 17 16 15 14 13 12 11 10 9 8 7 6 5 4 3 2 1 / RESET _I N DNU GND / RESET _OUT EEPROM _A0 NC NC NC GND NC NC DNU DNU GPI O6 GND GPI O4 GPI O2 GPI O0 DNU DNU GND NC SPI _SE L _C SPI _SE L _B GND SPI _HOL D DNU DNU DNU DNU DNU DNU GND DNU DNU DNU DNU GND DNU DNU DNU DNU DNU GND DNU DNU DNU DNU DNU GND DNU DNU DNU DNU GND USB _V BUS GND GND NC NC SDP_S_CON J4 DNU DNU GND DNU DNU DNU DNU DNU GND NC NC DNU DNU GPI O7 GND GPI O5 GPI O3 GPI O1 SCL _0 SDA_0 GND SPI _CL K SPI _M I SO SPI _M OSI SPI _SEL _A GND DNU DNU DNU DNU DNU DNU GND DNU DNU DNU DNU GND DNU DNU DNU DNU DNU GND DNU DNU DNU DNU GND DNU DNU DNU DNU DNU GND VI O_3. 3V GND GND NC NC 61 62 63 64 65 66 67 68 69 70 71 72 73 74 75 76 77 78 79 80 81 82 83 84 85 86 87 88 89 90 91 92 93 94 95 96 97 98 99 100 101 102 103 104 105 106 107 108 109 110 111 112 113 114 115 116 117 118 119 120 DGND R114 R113 R112 R111 R83 DGND 33 33 33 33 33 DGND DGND 1 2 3 4 U6 A0 A1 A2 V SS 24L C32 SCL K DOUT DI N / CS_ADC VCC WP SCL SDA R7 4 n o t p o p u l at e d E N_PW R / ERROR_A DC / SYNC_ADC R79 100K R74 NP 3. 3Vd 3. 3Vd R71 100K 8 7 6 5 3.3V d DGND 0.1uF C79 13268-029 24 G PIO 1 A V SS 8 Rev. 0 | Page 22 of 33 41 UG-845 AD8450-EVALZ/ADP1972-EVALZ User Guide AD8450-EVALZ/ADP1972-EVALZ User Guide UG-845 Table 5. Analog Control Board Bill of Materials Reference Designator C1, C2, C13, C14, C17, C18, C20, C21, C23, C24, C38, C39, C84 to C86, C88 to C90 C12, C27, C36, C41, C57, C60, C63, C65, C66, C72, C73, C76, C78 C3, C15, C19, C22, C25 C37, C42, C45 to C49, C64 C4, C6, C11, C26, C28, C30, C32, C34, C50, C56, C59, C62, C67, C68, C70, C71, C74, C75, C77, C79 C40 C43, C44 C5 C51, C52 to, C55, C58, C61 C7, C16, C87 C8, C10, C80 to C83 C9 D1 D2 D3 to D5 D6 FB1, R65, R108 FU1, FU2 J2 J3 J4 JP1, JP2 L1 Q1 R1, R2, R6, R8 to R10, R12, R15, R18, R22 to R24, R29, R33, R36, R41, R42, R47, R49 to R55, R85, R91 to R93, R97, R102, R107, R120 to R129 R11, R16, R17, R19, R27, R28, R30, R35, R38, R39, R40, R43 to R45, R58, R61, R64, R74, R90, R95, R98, R101, R105, R106 R130 R25 R3, R7, R96, R100, R116, R117 to R119 R37, R56, R57, R66, R69, R70, R75 to R77, R87, R94, R103, R104 R4, R5, R13, R14, R20, R21, R26, R31, R32, R34, R46, R48, R60, R88 R59 R63, R71, R79 R67 R68 R72, R73, R78, R80 to R84, R86, R89, R99, R109, R110 to R115 TP1 to TP7 U1 U2 U3 U4 U5 U6 U7 U8 Description Not applicable Manufacturer Not applicable Part Number Not applicable Ceramic capacitor, 0603, 1.0 μF, 25 V Murata GRM188R71E105KA12D Ceramic capacitor, 0603, 10 nF, 50 V, X7R Ceramic capacitor, 1206, 50 V, 4.7 μF Ceramic capacitor, 0603, X7R, 50 V, 100 nF AVX AVX AVX 06035C103KAT2A 12065C475KAT2A 06035C104K4Z2A Ceramic capacitor, 0603, 47 pF, 50 V Tantalum capacitor, 50 V, 10 μF Ceramic capacitor, 10 μF, 10 V, X7R, 0805 Ceramic capacitor, 0603, 100 pF, 50 V Not applicable Ceramic capacitor, 0603, 1 nF, 50 V Ceramic capacitor, 0805, 10 nF, 25 V, C0G Not applicable Not applicable Yellow LED Zener diode, 12 V, 0.2 W 0 Ω (jumper), 125 mW Fuse, 1206, fast, 125 mA Connector, DIN41612, B/2, 32 Connector SDP connector Jumper, 2211S-03G Not applicable Transistor, NPN, SOT89, 0.9 W Resistor, 0603, 0 Ω (jumper), 1% AVX Vishay TDK AVX Not applicable AVX Kemet Not applicable Not applicable Rohm ON Semiconductor Vishay Littelfuse Harting TE Connectivity Hirose Multicomp Not applicable Diodes, Inc. Vishay 06035A470JAT2A 293D106X9050D2TE3 C2012X7R1A106K125AC 06035A101JAT2A Not applicable 06035A102JAT2A C0805C103J3GACTU Not applicable Not applicable SML-311YTT86K MM3Z12VT1G CRCW08050000ZSTA 0466.125NR 09 22 232 6825 1776275-2 FX8-120S-SV(21) 2211S-03G Not applicable 2DD2679-13 CRCW06030000Z0EA Not applicable Not applicable Not applicable Not applicable Resistor, 0603, 11 kΩ Resistor, 0603, 1 kΩ, 0.1%, 0.1 W Resistor, 0603, 4.7 kΩ, 1% Not applicable Multicomp Panasonic Vishay Not applicable MC0063W0603111K ERA3AEB102V CRCW06034K70FKEA Resistor, 0603, 10 kΩ, 1% Vishay CRCW060310K0FKEA Resistor, 0603, 20 kΩ, 1% Resistor, 0603, 100 kΩ, 1% Resistor, 0805, 4.7 kΩ, 1% Resistor, 0805, 200 Ω, 1% Resistor, 0603, 1%, 50 ppm, 33 Ω Vishay Vishay Vishay Vishay Yageo CRCW060320K0FKEA CRCW0603100KFKEA CRCW08054K70FKEA CRCW0805200RFKEA RT0603FRE0733RL Test point Precision analog front end and controller for testing and monitoring battery cells Asynchronous buck or boost PWM controller 20 V, high input voltage LDO Charge pump voltage inverter Fast settling, highly accurate, low power, 8-/16-channel, multiplexed ADC EEPROM 5 V, high precision, low power, low noise voltage reference Dual, 16-bit, rail-to-rail, voltage output DAC Vero Analog Devices 20-313141 AD8450 Analog Devices Analog Devices Analog Devices Analog Devices ADP1972 ADP7102 ADM8829 AD7173-8 Microchip Analog Devices 24LC32A-I/SN ADR4550 Analog Devices AD5689R Rev. 0 | Page 23 of 33 AD8450-EVALZ/ADP1972-EVALZ User Guide 13268-030 UG-845 Figure 30. Analog Control Board Top Silkscreen Rev. 0 | Page 24 of 33 UG-845 13268-031 AD8450-EVALZ/ADP1972-EVALZ User Guide Figure 31. Analog Control Board Top Layer Rev. 0 | Page 25 of 33 AD8450-EVALZ/ADP1972-EVALZ User Guide 13268-032 UG-845 Figure 32. Analog Control Board Layer 2 (Ground) Rev. 0 | Page 26 of 33 UG-845 13268-033 AD8450-EVALZ/ADP1972-EVALZ User Guide Figure 33. Analog Control Board Layer 3 Rev. 0 | Page 27 of 33 AD8450-EVALZ/ADP1972-EVALZ User Guide 13268-034 UG-845 Figure 34. Analog Control Board Layer 4 Rev. 0 | Page 28 of 33 UG-845 13268-035 AD8450-EVALZ/ADP1972-EVALZ User Guide Figure 35. Analog Control Board Layer 5 (Power) Rev. 0 | Page 29 of 33 AD8450-EVALZ/ADP1972-EVALZ User Guide 13268-036 UG-845 Figure 36. Analog Control Board Bottom Layer Rev. 0 | Page 30 of 33 UG-845 13268-037 AD8450-EVALZ/ADP1972-EVALZ User Guide Figure 37. Analog Control Board Bottom Silkscreen Rev. 0 | Page 31 of 33 UG-845 AD8450-EVALZ/ADP1972-EVALZ User Guide TROUBLESHOOTING SOFTWARE HARDWARE To troubleshoot the software, take the following steps: To troubleshoot the hardware, take the following steps: 1. 1. 2. 3. 4. Always install the software prior to connecting the hardware to the PC. Always allow the install to fully complete (the software is a 2-part install: the ADC software and the SDP drivers). Completing the install may require a restart. When you first plug in the SDP-S board via the USB cable provided, allow the new Found Hardware Wizard to run. This step may take a little time; however, allow this to happen prior to starting the software. Where the board does not appear to be functioning, ensure that the ADC evaluation board is connected to the SDP-S board and that the board is being recognized in the Device Manager, as shown in Figure 11. 2. If the software does not read any data back, check that the power is applied within the power ranges described in the Powering the System section. Using a voltmeter, verify the following voltages on the analog control board: 3. 4. 5. Rev. 0 | Page 32 of 33 +5 V at U3, Pin 1 −5 V at U4, Pin 1 +12 V (or the actual input voltage to the system) at U3, Pin 8. Launch the software and read the data. If nothing happens, exit the software. Power down the board and relaunch the software. If no data is read back, confirm that the power stage board is plugged into the analog control board, and that the analog control board is connected to the SDP-S board and that the board is being recognized in the Device Manager, as shown in Figure 11. AD8450-EVALZ/ADP1972-EVALZ User Guide UG-845 PRODUCTS ON THIS EVALUATION SYSTEM Table 6. Product AD8450/AD8451 ADP1972 AD7173-8 AD5689R ADP2441 ADP7102 ADM8829 ADuM7223 Ordering Model AD8450ASTZ/AD8451ASTZ ADP1972ARUZ AD7173-8BCPZ AD5689RACPZ ADP2441ACPZ ADP7102ACPZ ADM8828ART ADM7223ACCZ Description Precision analog front end and controller for battery test/formation systems Buck or boost, PWM controller for battery test solutions Low power, 8-/16-channel, 31.25 kSPS, 24-bit, highly integrated Σ-Δ ADC Dual, 16-bit nanoDAC+ with 2 ppm/C reference 36 V, 1 A, synchronous step-down dc-to-dc regulator 20 V, 300 mA, low noise, CMOS LDO Switched capacitor voltage inverter with shutdown Isolated precision half-bridge driver, 4 A output RELATED LINKS Resource Battery Testing and Formation Analog Dialogue Article Technical Article AN-1319 AD8450/AD8451 Compensator Design Tool Description Battery Testing and Formation application page “Accurate Analog Controller Optimizes High-Efficiency Li-Ion Battery Manufacturing” Power Efficient Battery Formation/Testing System with Energy Recycling Application Note, Compensator Design for a Battery Charge/Discharge Unit Using the AD8450 or the AD8451 Simulation design tools for the AD8450/AD8451 ESD Caution ESD (electrostatic discharge) sensitive device. Charged devices and circuit boards can discharge without detection. Although this product features patented or proprietary protection circuitry, damage may occur on devices subjected to high energy ESD. Therefore, proper ESD precautions should be taken to avoid performance degradation or loss of functionality. Legal Terms and Conditions By using the evaluation board discussed herein (together with any tools, components documentation or support materials, the “Evaluation Board”), you are agreeing to be bound by the terms and conditions set forth below (“Agreement”) unless you have purchased the Evaluation Board, in which case the Analog Devices Standard Terms and Conditions of Sale shall govern. Do not use the Evaluation Board until you have read and agreed to the Agreement. Your use of the Evaluation Board shall signify your acceptance of the Agreement. This Agreement is made by and between you (“Customer”) and Analog Devices, Inc. (“ADI”), with its principal place of business at One Technology Way, Norwood, MA 02062, USA. Subject to the terms and conditions of the Agreement, ADI hereby grants to Customer a free, limited, personal, temporary, non-exclusive, non-sublicensable, non-transferable license to use the Evaluation Board FOR EVALUATION PURPOSES ONLY. Customer understands and agrees that the Evaluation Board is provided for the sole and exclusive purpose referenced above, and agrees not to use the Evaluation Board for any other purpose. Furthermore, the license granted is expressly made subject to the following additional limitations: Customer shall not (i) rent, lease, display, sell, transfer, assign, sublicense, or distribute the Evaluation Board; and (ii) permit any Third Party to access the Evaluation Board. As used herein, the term “Third Party” includes any entity other than ADI, Customer, their employees, affiliates and in-house consultants. The Evaluation Board is NOT sold to Customer; all rights not expressly granted herein, including ownership of the Evaluation Board, are reserved by ADI. CONFIDENTIALITY. This Agreement and the Evaluation Board shall all be considered the confidential and proprietary information of ADI. Customer may not disclose or transfer any portion of the Evaluation Board to any other party for any reason. Upon discontinuation of use of the Evaluation Board or termination of this Agreement, Customer agrees to promptly return the Evaluation Board to ADI. ADDITIONAL RESTRICTIONS. Customer may not disassemble, decompile or reverse engineer chips on the Evaluation Board. Customer shall inform ADI of any occurred damages or any modifications or alterations it makes to the Evaluation Board, including but not limited to soldering or any other activity that affects the material content of the Evaluation Board. Modifications to the Evaluation Board must comply with applicable law, including but not limited to the RoHS Directive. TERMINATION. ADI may terminate this Agreement at any time upon giving written notice to Customer. Customer agrees to return to ADI the Evaluation Board at that time. LIMITATION OF LIABILITY. THE EVALUATION BOARD PROVIDED HEREUNDER IS PROVIDED “AS IS” AND ADI MAKES NO WARRANTIES OR REPRESENTATIONS OF ANY KIND WITH RESPECT TO IT. ADI SPECIFICALLY DISCLAIMS ANY REPRESENTATIONS, ENDORSEMENTS, GUARANTEES, OR WARRANTIES, EXPRESS OR IMPLIED, RELATED TO THE EVALUATION BOARD INCLUDING, BUT NOT LIMITED TO, THE IMPLIED WARRANTY OF MERCHANTABILITY, TITLE, FITNESS FOR A PARTICULAR PURPOSE OR NONINFRINGEMENT OF INTELLECTUAL PROPERTY RIGHTS. IN NO EVENT WILL ADI AND ITS LICENSORS BE LIABLE FOR ANY INCIDENTAL, SPECIAL, INDIRECT, OR CONSEQUENTIAL DAMAGES RESULTING FROM CUSTOMER’S POSSESSION OR USE OF THE EVALUATION BOARD, INCLUDING BUT NOT LIMITED TO LOST PROFITS, DELAY COSTS, LABOR COSTS OR LOSS OF GOODWILL. ADI’S TOTAL LIABILITY FROM ANY AND ALL CAUSES SHALL BE LIMITED TO THE AMOUNT OF ONE HUNDRED US DOLLARS ($100.00). EXPORT. Customer agrees that it will not directly or indirectly export the Evaluation Board to another country, and that it will comply with all applicable United States federal laws and regulations relating to exports. GOVERNING LAW. This Agreement shall be governed by and construed in accordance with the substantive laws of the Commonwealth of Massachusetts (excluding conflict of law rules). Any legal action regarding this Agreement will be heard in the state or federal courts having jurisdiction in Suffolk County, Massachusetts, and Customer hereby submits to the personal jurisdiction and venue of such courts. The United Nations Convention on Contracts for the International Sale of Goods shall not apply to this Agreement and is expressly disclaimed. ©2016 Analog Devices, Inc. All rights reserved. Trademarks and registered trademarks are the property of their respective owners. UG13268-0-5/16(0) Rev. 0 | Page 33 of 33