USERS MANUAL ISL94202EVKIT1Z UG106 Rev.1.0 Evaluation Kit Apr 13, 2021 NOTE: Consult programming options for full listing of programmable The ISL94202EVKIT1Z is a kit that facilitates testing of the parameters and ranges. ISL94202 Li-ion battery pack monitor and control ICs. The ISL94202 monitors cell voltage, current, and temperature. It converts the cell voltages, pack current, and temperatures to Key Features 12-bit digital values, provides cell balance control, and Status LEDs monitor RGO, EOC, SD, and PSD conditions provides complete stand-alone battery pack operation. Jumper configuration single or split path applications Default stand-alone operation of the ISL94202 can be Wakeup push button for Exit Sleep control overridden by an external microcontroller. The PC based Graphical User Interface (GUI) includes functions to monitor FETs off push button for quick all FETs off condition stand-alone operation and to demonstrate operation with an Cell balance LEDs for MCB process observation external microcontroller. PCB layout accommodates solder braid addition for high current evaluation Specifications Software enables real time observation and data collection This board has been configured and optimized for the following of 14 analog measurements and 27 digital status indicators operating conditions: Configurable to 3 to 8 cells, default 3 cells Ordering Information Standard cell voltage range 2.699V to 4.250V PART NUMBER DESCRIPTION OV/UV delay times 1 and 4 seconds respectively CB maximum delta voltage 0.501 ISL94202EVKIT1Z Evaluation kit for the ISL94202 CB maximum/minimum voltage 4.032V and 3.100V DC POWER SUPPLY - P+ ISLI2CCABLE1Z USB 2.0 ISL94202IRZ ISL94203INTFACE2Z PC CABLE TEMP SENSE MCB PS Z GND ISL94202EVAL1Z FIGURE 1. BASIC EVALUATION TEST SETUP BLOCK DIAGRAM UG106 Rev.1.0 Page 1 of 35 Apr 13, 2021 + CELL BALANCE CIRCUITSISL94202EVKIT1Z Step 5: Connect the ISL94202 board directly to the MCB PS Z What is Inside board at connector J1. Make sure the board is The evaluation kit contains: connected on the ground side of J1 (see Figure 4). ISL94202EVAL1Z evaluation board Step 6: Turn on the power to the supply. If no LEDs light, press the WakeUp button. Notice that there is one green MCB PS Z multicell power supply test board LED (RGO), indicating the LDO regulator on the 2 ISL94202INTFACEKIT1Z USB to I C interface kit, includes a ISL94202 is operating. 2 PCB and I C cable The voltages at various points should be: 2 USB cable, connects PC to USB-I C interface board RGO = 2.5V 3% VREF = 1.80V 0.5% What is Needed Step 7: Connect the USB port of the PC to the USB port of the The following instruments will be needed to perform testing: ISL94202INTFACEKIT1Z interface board. 30V/1A adjustable power supply 2 Step 8: Connect the I C cable from the Wires to connect power supply to MCB PS Z board ISL94202INTFACEKIT1Z board to the ISL94202EVKIT1Z board (J13). Precision multimeter (optional) Step 9: Open the ISL94202 GUI software. Use the software to Oscilloscope (optional) read the cell voltages. Cables and wires (optional) Step 10: Compare the voltages at the board input (use a meter Software Installation to measure each input voltage, because the MCB PS Z board may not accurately divide the voltages into equal Step 1: Connect the ISLUSBI2C USB to the PC. The board 3.5V steps) with the readings provided by the GUI. should automatically enumerate in the device control These voltages should closely match. panel under Human Interface Devices. The vendor ID will be 0x09AA and the product ID will be 0x2036. Step 11: See other operations described later in this document. Because it is a HID device, no special driver is needed. PCB Layout Guidelines Step 2: Copy the isl94203evkit1z-software.exe program to the PC (any desired location). Double-click to run the The AC performance of this circuit depends greatly on the care installation file. Note you may need to use the Run as taken in designing the PC board. The following are Administrator option when performing the recommendations to achieve optimum high performance from installation.file. your PC board. The use of low inductance components, such as chip resistors Quick Hardware Setup Guide and chip capacitors, is strongly recommended. Step 1: Check the jumpers and switches on the board. The Minimize signal trace lengths. This is especially true for the VDD, charge pump decoupling, CS1, CS2, and VC0-VC8 inputs. board should be configured as follows: Trace inductance and capacitance can easily affect circuit ADDR jumper set to 0. performance. Vias in the signal lines add inductance at high frequency and should be avoided. xT2 Select jumper on either CELL or FET. Match channel-to-channel analog I/O trace lengths and layout FET jumpers set for either one path or two path. symmetry. This is especially true for the CS1 and CS2 lines, Start with one path. since their inputs are normally very low voltage. J4 jumper is set to 1 Path. Maximize use of AC decoupled PCB layers. All signal I/O lines J9 jumper is set to 1 Path. should be routed over continuous ground planes (i.e., no split Step 2: Connect the power supply to the MCB PS Z board. The planes or PCB gaps under these lines). Avoid vias in the signal I/O lines. positive terminal is J5/J11 and the negative terminal is J8/J12. There should be a jumper on JP2/8CELL. When testing, use good quality connectors and cables, matching cable types and keeping cable lengths to a Step 3: Set the power supply voltage to 28V (3.5V per cell). minimum. (Optional: check that the voltages at terminal J1 or J3 are 3.5V per cell). Step 4: Turn off the power to the power supply. UG106 Rev.1.0 Page 2 of 35 Apr 13, 2021