ACT8945AEV Rev 0, 08-Aug-13 ACT8945A Evaluation Kit FEATURES GENERAL DESCRIPTION • Fully Assembled and Tested PCB • Allows Simple Evaluation of the ACT8945A • Probe Points for Easy Measurement The ACT8945AEV contains a fully assembled and tested circuit board designed to demonstrate all the features of the ACT8945A. The ACT8945AEV includes a variety of test points and jumpers as necessary to configure and evaluate the ACT8945A’s functionality. QUICK START GUIDE To evaluate the advanced features of REG1 to REG7, click the Advanced Mode button and select the REG tabs to allow direct access to the control bits. Refer to the ACT8945A data sheet for more information regarding the REG1 to REG7 control registers. Recommended Equipment 1) Variable Power Supply 2) DMM 3) Load Resistors or Electronic Load ActivePathTM Charger 4) ActivePMUTM Dongle and Cable Table 1: 5) ACT8945AEV GUI software nSTAT Status 6) Li+ Battery STATE Quick Start Operating Procedure Precondition The following procedure should be used when operating the ACT8945AEV for the first time to verify correct operation. 1) Do not turn the power supply ON until all connections have been made. 2) Connect the power supply positive lead to the SYS pin connector. Fast Charge ON Not Charging OFF Input Floating OFF Fault OFF 2) If VBAT is less than 4.2V (typ), verify that the charge current from BAT into the battery (Refer to Table 2 for more detail setting). 4) Connect the corresponding pin of J1 Jumper to dongle through cable. 3) Verify VSYS is approximately 4.6V and LED state as Table 1. 5) Connect dongle to the computer which has the ACT8945A GUI Software installed. 4) Disconnecting the CHG_IN input supply demonstrates battery power backup for loss of adapter power. Verify the voltage at SYS as VSYS = VBAT – ISYS × RDSONQ2, where RDSONQ2 = 0.08Ω (typ). 6) Set the power supply to 5V. 7) Turn on the power supply. 8) Drive PWRHLD (IO8) to SYS or logic high to turn-on REG1, REG2, REG3. Use ActivePMUTM evaluation system to turn-on REG4, REG5, REG6, REG7. 5) Reconnect the CHG_IN input supply. Verify on the scope VSYS and LED state as Table 1. 6) To evaluate the DCCC operation, increase the load current on SYS and observe the VSYS 9) Verify all REGs voltage levels using DMMs or scope. ActivePMUTM and ActivePathTM are trademarks of Active-Semi. I2CTM is a trademark of NXP. ON 1) Move the Power Supply positive lead to CHG_IN pin collector. Verified VCHG_IN is 5.5V with no load at SYS. 3) Connect the power supply negative lead to the GND pin connector located near the CHG_IN pin connector. Innovative PowerTM nSTAT -1- www.active-semi.com Copyright © 2013 Active-Semi, Inc. ACT8945AEV Rev 0, 08-Aug-13 ACT8945A Evaluation Kit drops > 200mV below the setting voltage (4.6V is typically). The charging current reduces to keep the output from falling below the programmed DCCC output threshold. 7) Continue to increase the load current on SYS. Verify that VSYS drops just below VBAT (50mV). The internal battery FET turns on and allows the battery to source the SYS pin system load because the system demands more current than input can provide and reducing the battery charging current to zero is still not enough to keep the output from dropping. This demonstrates battery supplement mode. 8) Decrease the load current on SYS to 100mA. Verify that VSYS returns to 4.6V. 9) Programming charge current by changing logic states of ACIN and CHGLEV pin. The charge current can be programmed following the Table 2 below: Table 2: Charger Current Setting ACIN CHGLEV CHARGE CURRENT (mA) PRECONDITION CHARGE CURRENT (mA) 0 0 90mA 45mA 0 1 450mA 45mA 1 0 ICHG/5 10% * ICHG 1 1 ICHG 10% * ICHG RISET (kΩ) = 2336 × (1V/ICHG (mA)) - 0.205 10) Once the battery voltage reaches regulation (4.2V), the charger is in TOP-OFF State (please refer to the datasheet of ACT8945A for details). During a normal charging, charging cycle proceeds until the charge current decreases to below the End of Charge threshold which is 10% of the selected maximum charge current. Verify LED state as Table 1. 11) If the battery voltage is dropped by 200mV (typ), the charger starts a new charging cycle. 12) To demonstrate Over Voltage Protection (OVP), increase VCHG_IN to OVP threshold (6.5V) and verify that the charging is disabled and SYS is connected to the battery. Innovative PowerTM ActivePMUTM and ActivePathTM are trademarks of Active-Semi. I2CTM is a trademark of NXP. -2- www.active-semi.com Copyright © 2013 Active-Semi, Inc. ACT8945AEV Rev 0, 08-Aug-13 ACT8945A Evaluation Kit PCB LAYOUT Figure 1: Component Placement – Top Layer REG1 Output Connection REG2 Output Connection CHG_IN Adapter Input Connector Input/Output selection pins System Supply Connection REG4 Output Connection REG5 Output Connection Li+ Battery Supply I2C Connectors REG7 Output Connection REG6 Output Connection Innovative PowerTM ActivePMUTM and ActivePathTM are trademarks of Active-Semi. I2CTM is a trademark of NXP. -3- REG3 Output Connection www.active-semi.com Copyright © 2013 Active-Semi, Inc. ACT8945AEV Rev 0, 08-Aug-13 ACT8945A Evaluation Kit Figure 2: PCB Layout – Top Layer Figure 3: PCB Layout – Middle 1 Layer Innovative PowerTM ActivePMUTM and ActivePathTM are trademarks of Active-Semi. I2CTM is a trademark of NXP. -4- www.active-semi.com Copyright © 2013 Active-Semi, Inc. ACT8945AEV Rev 0, 08-Aug-13 ACT8945A Evaluation Kit Figure 4: PCB Layout – Middle 2 Layer Figure 5: PCB Layout – Bottom Layer Innovative PowerTM ActivePMUTM and ActivePathTM are trademarks of Active-Semi. I2CTM is a trademark of NXP. -5- www.active-semi.com Copyright © 2013 Active-Semi, Inc. ACT8945AEV Rev 0, 08-Aug-13 ACT8945A Evaluation Kit Figure 6: Component Placement – Bottom Layer Innovative PowerTM ActivePMUTM and ActivePathTM are trademarks of Active-Semi. I2CTM is a trademark of NXP. -6- www.active-semi.com Copyright © 2013 Active-Semi, Inc. ACT8945AEV Rev 0, 08-Aug-13 ACT8945A Evaluation Kit Figure 7: ACT8945AEV Evaluation Kit Programming Dongle. The Black Wire Ground Pin on the Cable Connects to the Dongle as Shown. Dongle Cable Connector (Black Wire Connected to GND, J1 Pin 1 on ACT8945AEV) Dongle Cable Connector Black Wire Connected to GND ACT8945AEV USB-to-I2C Programming Dongle The ACT8945AEV USB-to-I2C Programming Dongle connects to the ACT8945AEV board through a 4 wire cable with a 4 pin connector at each end. The black wire is ground and should be oriented as shown in Figure 7. As a guide, use the “Active-Semi” logo on the top of the programmer so that the black wire is connected toward the lower left corner of the Dongle. Innovative PowerTM ActivePMUTM and ActivePathTM are trademarks of Active-Semi. I2CTM is a trademark of NXP. On the ACT8945AEV PCB board, the black wire is connected to pin 1 of J1 shown in Figure 7. See the section, Quick Start Operating Procedure to verify the ACT8945AEV operation using the Dongle and the GUI. -7- www.active-semi.com Copyright © 2013 Active-Semi, Inc. ACT8945AEV Rev 0, 08-Aug-13 ACT8945A Evaluation Kit Figure 8: ACT8945AEV Evaluation Kit Schematic Table 3: Pins/Connectors Description NAME JUMPER DESCRIPTION SYS Connector Power Input Pin Connector. Power input for the ACT8945AEV board. See in the datasheet for more details. GND Connector Ground Pin Connector. J1 Connector Dongle cable connector. J2 Connector Input/Output selection pins. J4 Connector Using jumper connecting OUTX to OUT1 or OUT2 to select which Output is used to pulled the resistors up. VSEL IO1 Step-Down DC/DCs Output Voltage Selection Input. Default setting VSEL is connected to GND. Please see in the datasheet for more details. nLBO IO2 Low battery indicator output. Please see in the datasheet for more details. nPBIN IO4 Master enable input. Please see in the datasheet for more details. nPBSTAT IO5 nPBIN State indicator. nIRQ IO6 Open drain Interrupt output. nRSTO IO7 Signal reset timeout Output Pin. PWRHLD IO8 Power hold input. Please see in the datasheet for more details. Innovative PowerTM ActivePMUTM and ActivePathTM are trademarks of Active-Semi. I2CTM is a trademark of NXP. -8- www.active-semi.com Copyright © 2013 Active-Semi, Inc. ACT8945AEV Rev 0, 08-Aug-13 ACT8945A Evaluation Kit Table 3: Pins/Connectors Description cont’d NAME JUMPER DESCRIPTION LBI IO9 Low battery Input. This input voltage will be compared to 1.2V ACIN IO10 AC input supply selection. Default setting ACIN is connected to SYS. Please see in the datasheet for more details. CHGLEV IO11 Charge current selecting input. Default setting CHGLEV is connected to SYS. Please see in the datasheet for more details. OUT1 Connector Output Pin Connector for BUCK1. OUT2 Connector Output Pin Connector for BUCK2. OUT3 Connector Output Pin Connector for BUCK3. OUT4 Connector Output Pin Connector for LDO4 OUT5 Connector Output Pin Connector for LDO5 OUT6 Connector Output Pin Connector for LDO6 OUT7 Connector Output Pin Connector for LDO7 Innovative PowerTM ActivePMUTM and ActivePathTM are trademarks of Active-Semi. I2CTM is a trademark of NXP. -9- www.active-semi.com Copyright © 2013 Active-Semi, Inc. ACT8945AEV Rev 0, 08-Aug-13 ACT8945A Evaluation Kit Table 4: ACT8945AQJEV Bill of Materials ITEM DESCRIPTION MANUFACTURER QTY REFERENCE 1 IC, PMU, ACT8945A Active-Semi 1 U1 2 Resistor, 51kΩ, 5%, SMT, 0603 FengHua, Neohm, Yageo 1 R1 3 Resistor, 4.7kΩ, 5%, SMT, 0603 FengHua, Neohm, Yageo 1 R2 4 Resistor, 15kΩ, 5%, SMT, 0603 FengHua, Neohm, Yageo 1 R3 5 Resistor, 100kΩ, 5%, SMT, 0603 FengHua, Neohm, Yageo 1 R14 (NP) 6 Resistor, 0Ω, 5%, SMT, 0603 FengHua, Neohm, Yageo 3 R15, R16(NP), R17 7 Resistor, 10kΩ, 5%, SMT, 0603 FengHua, Neohm, Yageo 10 R4 (NP), R5, R6, R7, R8 (NP), R9, R10 (NP), R11 (NP), R12 (NP), R13 (NP) 8 Capacitor, Ceramic, 22µF / 6.3V, X7R, SMT, 0805 Panasonic, Kemet, Murata, TDK, FengHua, Taiyo Yuden 3 C1, C2, C3 9 Capacitor, Ceramic, 10µF / 6.3V, X7R, SMT, 0805 Panasonic, Kemet, Murata, TDK, FengHua, Taiyo Yuden 1 C12 10 Capacitor, Ceramic, 3.3µF / 6.3V, X7R, SMT, 0603 Panasonic, Kemet, Murata, TDK, FengHua, Taiyo Yuden 4 C4, C5, C6, C7 11 Capacitor, Ceramic, 1µF / 6.3V, X7R, Panasonic, Kemet, Murata, SMT, 0603 TDK, FengHua, Taiyo Yuden 1 C13 12 Capacitor, Ceramic, 47nF / 6.3V, X7R, SMT, 0402 Panasonic, Kemet, Murata, TDK, FengHua, Taiyo Yuden 1 C8 13 Capacitor, Ceramic, 4.7µF / 6.3V, X7R, SMT, 0805 Panasonic, Kemet, Murata, TDK, FengHua, Taiyo Yuden 3 C9, C10, C11 14 Capacitor, Ceramic, 4.7µF / 16V, X7R, SMT, 0805 Panasonic, Kemet, Murata, TDK, FengHua, Taiyo Yuden 1 C14 15 Capacitor, Ceramic, 39pF/ 6.3V, X7R, SMT, 0603 Panasonic, Kemet, Murata, TDK, FengHua, Taiyo Yuden 1 C15 (NP) 16 Inductor, CDRH3D16HP220NC, 2.2µH, SMT Sumida 3 L1, L2, L3 17 Diode, LED, 0805 Liteon, Osram, Nichia 1 D1 18 PIN Molex, Hirose 15 SYS, CHG_IN, BAT, OUT1, OUT2, OUT3, OUT4, OUT5, OUT6, OUT7, GND (5) 19 2.54mm, 3PIN Molex, Hirose 2 J1, J4 20 2.54mm, 5x24PIN Molex, Hirose 1 J2 21 Push-Button Switch Nikkai Omron 2 S1, S2 (NP): Not Populated Innovative PowerTM ActivePMUTM and ActivePathTM are trademarks of Active-Semi. I2CTM is a trademark of NXP. - 10 - www.active-semi.com Copyright © 2013 Active-Semi, Inc. ACT8945AEV Rev 0, 08-Aug-13 ACT8945A GUI INTRODUCTION advanced configuration modes. The ActivePMUTM evaluation system facilitates a complete solution to evaluate Active-Semi’s advanced family of PMU products (ACT5xxx, ACT8xxx). The evaluation kit requires a software protection dongle to be used (provided in evaluation kit). GETTING STARTED USER INTERFACE Clicking on the ActivePMU.exe Icon invokes the ActivePMUTM evaluation system main window as shown in Figure 9 below. 1. Software Protection Dongle In order to operate the ActivePMUTM evaluation system, the software protection dongle must be connected at all times. The dongle is connected to the USB port of the PC. Figure 10 below shows the two possible indication status graphics. Figure 10: Dongle Connected Note: The user interface for ACT8945A is used for illustration only. Dongle Disconnected Figure 9: User Interface 2.Reading the PMU Configuration The current configuration settings of the PMU can be read by clicking the “Read” button on the tool bar. Note: The progress of the configuration reading is shown in the Progress bar (See figure 11) Figure 11: Reading from IC Each product or product family has a unique main window layout providing the user programmable features. • The product/product family is shown at the top left of the main window. • The tool bar in the top right of the main window provides access to the main operation features: − Read/Write: Read/Write configuration from PMU − Help, About and Exit • Dongle Connection Status • The user programmable configuration options are programmed using the drop down boxes (e.g. VOUT1, VOUT2 etc…) • Writing process bar: indicates the progress of the PMU configuration writing process. •Advance/Basic mode selection button enables the user to toggle the user interface between Basic and Innovative PowerTM ActivePMUTM and ActivePathTM are trademarks of Active-Semi. I2CTM is a trademark of NXP. After reading from IC, output value will be appear in form. With Basic Mode selected, only the output settings are shown. Click on the Combo boxes or checkboxes to set the value for outputs. Click the “Advanced Mode” button to see all available user programmable options. With Advanced Mode, additional user programmable features can be selected using the radio buttons, combo boxes. - 11 - www.active-semi.com Copyright © 2013 Active-Semi, Inc. ACT8945AEV Rev 0, 08-Aug-13 ACT8945A GUI Figure 12: Advanced Mode Screen The Advanced/Basic configuration modes are available for both reading and writing the PMU. 4. Help Addition information and hints can be found by clicking the “Help” button in the toolbar. 5. About For more introduce information, click on “About” button in the toolbar. 6. Exit To exit this software, click on the “Exit” button in the toolbar. 3. Writing the Configuration to the PMU To write the configuration selected to the PMU, click the “Write” button in main window. Note: The “Read/Write Progress bar” indicates the status of the writing operation. Figure 13: Writing to IC Innovative PowerTM ActivePMUTM and ActivePathTM are trademarks of Active-Semi. I2CTM is a trademark of NXP. - 12 - www.active-semi.com Copyright © 2013 Active-Semi, Inc.