NCV8871BSTGEVB ON Semiconductor

NCV8871BSTGEVB NCV8871 Automotive Grade Boost Controller Audio Amplifier Evaluation Board User s Manual www.onsemi.com EVAL BOARD USERS MANUAL Description Key Features The NCV8871BST evaluation board provides an 18 V Output Voltage opportunity to evaluate the NCV887100 in an audio 9 A Output Current amplifier power supply type application. The board supplies Fixed Frequency Operation at 170 kHz an 18 V output with 9 A of output current from as low as a Regulates Fully Loaded From as Low as 6 V Input 6 V input. The enable pin can also be used to synchronize the Survives 40 V Load Dump supply to an external clock. External Clock Synchronization up to 340 kHz Automotive Grade Figure 1. NCV8871BSTGEVB Evaluation Board Semiconductor Components Industries, LLC, 2016 1 Publication Order Number: May, 2019 Rev. 2 EVBUM2066/DNCV8871BSTGEVB Table 1. EVALUATION BOARD TERMINAL DESCRIPTIONS Terminal Function VIN Positive dc input voltage. GND Common dc return. VOUT Dc output voltage. EN/SYNC Dc enable voltage and external clock synchronization. A dc logic low disables the device. Table 2. ABSOLUTE MAXIMUM RATINGS (Voltages are with respect to GND) Rating Value Unit Dc Supply Voltage (VIN) -0.3 to 40 V Dc Supply Voltage (EN/SYNC) -0.3 to 6 V Ambient Temperature -40 to 85 C Stresses exceeding those listed in the Maximum Ratings table may damage the device. If any of these limits are exceeded, device functionality should not be assumed, damage may occur and reliability may be affected. Table 3. ELECTRICAL CHARACTERISTICS (TA = 25C, 4.5 VIN 18 V, IOUT 2 A, unless otherwise specified) Characteristic Conditions Typical Value Unit OUTPUT VOLTAGE Output Voltage 18.00 V Voltage Accuracy 40 TA 85 4 % Soft-start Time 7.4 ms SWITCHING REGULATOR Switching Frequency 170 kHz SYNC Frequency 170 to 340 kHz Duty Cycle Range 2 to 88 % Current Limit Cycle-by-cycle current limit 50 A General Input Undervoltage Lockout (UVLO) V increasing 3.8 V IN Efficiency V = 13.2 V, I = 5 A 85 % IN OUT Thermal Shutdown 170 C www.onsemi.com 2