ACT8945AEV. ACT8945A Evaluation Kit FEATURES GENERAL DESCRIPTION QUICK START GUIDE. Rev 0, 08-Aug-13

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1 FEATURES Fully Assembled and Tested PCB Allows Simple Evaluation of the ACT8945A Probe Points for Easy Measurement QUICK START GUIDE 1) Variable Power Supply 2) DMM Recommended Equipment 3) Load Resistors or Electronic Load 4) ActivePMU TM Dongle and Cable 5) GUI software 6) Li+ Battery Quick Start Operating Procedure The following procedure should be used when operating the 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 BAT pin connector. 3) Connect the power supply negative lead to the GND pin connector located near the CHG_IN pin connector. 4) Connect the corresponding pin of J1 Jumper to dongle through cable. 5) Connect dongle to the computer which has the ACT8945A GUI Software installed. 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, REG4 and REG5. REG6 and REG7 can be enabled by PWREN (IO3) or using ActivePMU TM evaluation system. 9) Verify all REGs voltage levels using DMMs or scope. GENERAL DESCRIPTION The contains a fully assembled and tested circuit board designed to demonstrate all the features of the ACT8945A. The includes a variety of test points and jumpers as necessary to configure and evaluate the ACT8945A s functionality. 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. Table 1: nstat Status Precondition Fast Charge Not Charging Input Floating Fault STATE ActivePath TM nstat ON ON OFF OFF OFF Charger 1) Move the Power Supply positive lead to CHG_IN pin collector. Verified V CHG_IN is 5.5V with no load at SYS. 2) If V BAT is less than 4.2V (typ), verify that the charge current from BAT into the battery (Refer to Table 2 for more detail setting). 3) Verify V SYS is approximately 4.6V and LED state as Table 1. 4) Disconnecting the CHG_IN input supply demonstrates battery power backup for loss of adapter power. Verify the voltage at SYS as V SYS = V BAT I SYS R DSONQ2, where R DSONQ2 = 0.08Ω (typ). 5) Reconnect the CHG_IN input supply. Verify on the scope V SYS and LED state as Table 1. 6) To evaluate the DCCC operation, increase the load current on SYS and observe the V SYS drops > 200mV below the setting voltage (4.6V Innovative Power TM

2 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 V SYS drops just below V BAT (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 V SYS 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 R ISET (kω) = 2336 (1V/I CHG (ma)) ACIN CHGLEV CHARGE CURRENT (ma) PRECONDITION CHARGE CURRENT (ma) mA 45mA mA 45mA 1 0 I CHG /5 10% * I CHG 1 1 I CHG 10% * I CHG 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 V CHG_IN to OVP threshold (6.5V) and verify that the charging is disabled and SYS is connected to the battery. Innovative Power TM

3 PCB LAYOUT Figure 1: Component Placement Top Layer REG1 Output REG2 Output CHG_IN Adapter Input Connector Input/Output selection pins REG4 Output System Supply REG5 Output Li+ Battery Supply I 2 C Connectors REG7 Output REG6 Output REG3 Output Innovative Power TM

4 Figure 2: PCB Layout Top Layer Figure 3: PCB Layout Middle 1 Layer Innovative Power TM

5 Figure 4: PCB Layout Middle 2 Layer Figure 5: PCB Layout Bottom Layer Innovative Power TM

6 Figure 6: Component Placement Bottom Layer Innovative Power TM

7 Figure 7: 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 ) Dongle Cable Connector Black Wire Connected to GND USB-to-I 2 C Programming Dongle The USB-to-I 2 C Programming Dongle connects to the 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. On the 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 operation using the Dongle and the GUI. Innovative Power TM

8 Figure 8: Evaluation Kit Schematic IO1 IO2 IO3 IO4 IO5 IO6 IO7 IO8 IO9 IO10 IO11 J2 SYS OUT1 OUT2 OUT3 OUT4 OUT5 OUT7 OUT6 J4 OUT1 OUT2 R13 R12 R11 R10 J1 C14 C12 R9 R8 R7 R6 R5 R4 R3 R2 C8 S2 SYS IO8 IO7 IO6 IO5 IO3 IO2 IO9 IO10 IO11 IO1 IO4 R1 S1 CHG_IN BAT PWRHLD nrsto nirq npbstat PWREN nlbo LBI ACIN CHGLEV VSEL SDA SCL TH ISET REFBP npbin U1 ACT8945A GA GP3 GP12 VSYS INL VP1 VP2 VP3 NC nstat SW1 OUT1 SW2 OUT2 SW3 OUT3 OUT4 OUT5 OUT6 OUT7 D1 L1 L2 L3 C7 C9 C10 C11 C13 C15 R15 C4 C5 C6 C1 R14 C2 C3 SYS GND OUT1 OUT2 OUT3 OUT4 OUT5 OUT6 OUT7 R16 GND R17 GND Table 3: Pins/Connectors Description NAME JUMPER DESCRIPTION SYS GND J1 J2 J4 VSEL Connector Power Input Pin Connector. Power input for the board. See in the datasheet for more details. Connector Ground Pin Connector. Connector Dongle cable connector. Connector Input/Output selection pins. Connector IO1 Using jumper connecting OUTX to OUT1 or OUT2 to select which Output is used to pulled the resistors up. 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. PWRHLD IO3 Power Enable input. 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 Power TM

9 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 CHGLEV OUT1 OUT2 OUT3 OUT4 OUT5 OUT6 OUT7 IO10 IO11 AC input supply selection. Default setting ACIN is connected to SYS. Please see in the datasheet for more details. Charge current selecting input. Default setting CHGLEV is connected to SYS. Please see in the datasheet for more details. Connector Output Pin Connector for BUCK1. Connector Output Pin Connector for BUCK2. Connector Output Pin Connector for BUCK3. Connector Output Pin Connector for LDO4 Connector Output Pin Connector for LDO5 Connector Output Pin Connector for LDO6 Connector Output Pin Connector for LDO7 Innovative Power TM

10 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 Capacitor, Ceramic, 22µF / 6.3V, X7R, SMT, 0805 Capacitor, Ceramic, 10µF / 6.3V, X7R, SMT, 0805 Capacitor, Ceramic, 3.3µF / 6.3V, X7R, SMT, 0603 Capacitor, Ceramic, 1µF / 6.3V, X7R, SMT, 0603 Capacitor, Ceramic, 47nF / 6.3V, X7R, SMT, 0402 Capacitor, Ceramic, 4.7µF / 6.3V, X7R, SMT, 0805 Capacitor, Ceramic, 4.7µF / 16V, X7R, SMT, 0805 Capacitor, Ceramic, 39pF/ 6.3V, X7R, SMT, 0603 Inductor, CDRH3D16HP220NC, 2.2µH, SMT R4 (NP), R5, R6, R7, R8 (NP), R9, R10 (NP), R11 (NP), R12 (NP), R13 (NP) 3 C1, C2, C3 1 C12 4 C4, C5, C6, C7 1 C13 1 C8 3 C9, C10, C11 1 C14 1 C15 (NP) Sumida 3 L1, L2, L3 17 Diode, LED, 0805 Liteon, Osram, Nichia 1 D1 18 PIN Molex, Hirose mm, 3PIN Molex, Hirose 2 J1, J mm, 5x24PIN Molex, Hirose 1 J2 21 Push-Button Switch Nikkai Omron 2 S1, S2 SYS, CHG_IN, BAT, OUT1, OUT2, OUT3, OUT4, OUT5, OUT6, OUT7, GND (5) (NP): Not Populated Innovative Power TM

11 ACT8945A GUI INTRODUCTION The ActivePMU TM 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). USER INTERFACE Clicking on the ActivePMU.exe Icon invokes the ActivePMU TM evaluation system main window as shown in Figure 9 below. Note: The user interface for ACT8945A is used for illustration only. Figure 9: User Interface advanced configuration modes. GETTING STARTED 1. Software Protection Dongle In order to operate the ActivePMU TM 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 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 Dongle Disconnected 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 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 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. Innovative Power TM

12 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 Power TM

13 Mouser Electronics Authorized Distributor Click to View Pricing, Inventory, Delivery & Lifecycle Information: Active-Semi: EA8945AQJ405