Click here to ask about the production status of specific part numbers. Evaluates: MAX15005A, MAX15005B, MAX15005A Evaluation Kit MAX15005C, MAX15005D, MAX15004A, MAX15004B, MAX15004C, MAX15004D General Description Features The MAX15005A evaluation kit (EV kit) is a fully assem- 6.5V to 16V DC Input Range bled and tested PCB that contains an 11W flyback DCDC Outputs converter for vacuum-fluorescent displays (VFDs) in 3V Provides Up to 650mA (VFD Filament) automotive applications. The circuit uses a MAX15005C 60V Provides Up to 12mA (VFD Grid) high-performance, current-mode pulse-width modulation 110V Provides Up to 55mA (VFD Anode) (PWM) controller in a 16-pin TSSOP package. The EV Output Voltage Accuracy kit circuit is configured for output voltages of 3V, 60V, 110V (Anode) = 3% (Regulated Output) and 110V, and provides up to 650mA, 12mA, and 55mA of current from the respective output. Additionally, a 5V 60V (Grid) = 5% (Proportional Loading) low-dropout (LDO) voltage regulator output is provided 3V (Filament) = 10% (Proportional Loading) that can source up to 15mA. Power for the EV kit circuit is 71% Efficiency at 16V Input and Full Load provided from a 6.5V to 16V DC source. The MAX15005A 5V LDO Output Provides Up to 15mA EV kit input circuit can sustain a 40V transient. Hiccup Current-Limit and Overtemperature Shutdown High efficiency of up to 71% is achieved using a single - transistor flyback DC-DC converter topology. Low cost is 100kHz Switching Frequency achieved through the use of direct secondary-side regula- Capacitor Adjustable Soft-Start tion that does not require optical couplers. Input undervolt- age lockout (UVLO), output overvoltage protection (OVP), High-Accuracy Undervoltage Lockout (UVLO) and soft-start provide for a robust 11W power supply. Output Overvoltage Protection (OVP) Operation at 100kHz minimizes the size of the transform- Capable of Synchronizing to an External Clock er and passive components. Low-Cost, Robust Flyback Design Warning: The MAX15005A EV kit is designed to operate Fully Assembled and Tested with high voltages. Dangerous voltages are present on this EV kit and on equipment connected to it. Users who power up this EV kit, or power the sources connected to Ordering Information it, must be careful to follow safety procedures appropriate to working with high-voltage electrical equipment. PART TYPE Under severe fault or failure conditions, this EV kit may MAX15005AEVKIT+ EV Kit dissipate large amounts of power, which could result in +Denotes lead-free and RoHS-compliant. the mechanical ejection of a component or of component debris at high velocity. Operate this kit with care to avoid possible personal injury. Component List DESIGNATION QTY DESCRIPTION DESIGNATION QTY DESCRIPTION 330F, 50V electrolytic capacitor 100pF 2%, 50V C0G ceramic C1 1 (12.5mm x 13.5mm) C4 1 capacitor (0603) Panasonic EEVFK1H331Q Murata GRM1885C1H101G 0.1F 10%, 50V X7R ceramic 1000pF 5%, 50V C0G ceramic C2 1 capacitor (0603) C5 1 capacitor (0603) Murata GRM188R71H104K Murata GRM1885C1H102J 1F 10%, 16V X7R ceramic 4700pF 10%, 50V X7R ceramic C3, C10 2 capacitors (0805) C6 1 capacitor (0603) Murata GRM21BR71C105K Murata GMR188R71H472K 19-0964 Rev 1 7/20Evaluates: MAX15005A, MAX15005B, MAX15005A Evaluation Kit MAX15005C, MAX15005D, MAX15004A, MAX15004B, MAX15004C, MAX15004D Component List (continued) DESIGNATION QTY DESCRIPTION DESIGNATION QTY DESCRIPTION 47pF 5%, 50V C0G ceramic 8.2V, 350mW 5% Zener diode C7 1 capacitor (0603) D5 1 (SOT23) Murata GRM1885C1H470J Central Semiconductor CMPZ5237B JU1, JU2 2 2-pin headers 0.68F 10%, 16V X7R ceramic C8 1 capacitor (0805) JU3 1 3-pin header Murata GRM219R71C684K 80V, 1.4A n-channel MOSFET 560pF 5%, 50V C0G ceramic N1 1 (8-pin SO) C9 1 capacitor (0603) Vishay Si4896DY-T1-E3 Murata GRM1885C1H561J R1 1 11.5k 1% resistor (0603) 2200pF 10%, 100V X7R ceramic R2 1 560 5% resistor (1210) C11 1 capacitor (0603) R3 1 51 5% resistor (0805) Murata GRM188R72A222K R4 1 402k 1% resistor (0603) 100pF 10%, 63V C0G ceramic R5 1 1k 5% resistor (0603) C12, C14 2 capacitors (1206) TKD C3216C0G2J101K 0.070 1% power resistor (2010) R6 1 IRC LRC-LR2010LF-01-R070-F 10F, 200V electrolytic capacitor R7 1 510 5% resistor (1206) C13 1 (10mm x 10.5mm) SANYO 200CE10FS R8 1 100k 5% resistor (1206) R9 1 220 5% resistor (1206) 22F, 80V electrolytic capacitor C15 1 (8mm x 10.2mm) R10 1 36k 5% resistor (1206) Panasonic EEEFK1K220P R11 1 1.33M 1% resistor (0603) 330F, 6.3V electrolytic capacitor R12 1 12.1k 1% resistor (0603) C16 1 (8mm x 10.5mm) R13 1 118k 1% resistor (0603) SANYO 6CE330EX R14 1 1.33k 1% resistor (0603) 2.2F 20%, 10V X5R ceramic R15 1 100 5% resistor (0805) C17 1 capacitor (0603) AVX 0603ZD225MAT R16 1 10 5% resistor (1210) R17 1 187k 1% resistor (0603) 4700pF 10%, 100V X7R ceramic C18 1 capacitor (0805) R18 1 47.5k 1% resistor (0603) Murata GRM219R72A472K R19 1 10k 5% resistor (0805) 100V, 1A super-fast diode (SMA) R20 1 232k 1% resistor (0603) D1 1 Diodes Inc. ES1B-13-F 15H, 10W, 1:3.438:2.813:0.188 turn, 600V, 1A super-fast diode (SMB) T1 1 100kHz transformer (10-pin gull wing) D2 1 Diodes Inc. MURS160-F Coiltronics CTX03-17677-R 400V, 1A super-fast diode (SMA) MAX15005CAUE/V+ D3 1 U1 1 Diodes Inc. MURS140-13-F (16-pin TSSOP-EP) 40V, 3A Schottky diode (SMA) 2 Shunts (JU1, JU2, JU3) D4 1 Diodes Inc. B340A-13-F 1 PCB: MAX15005A Evaluation Kit+ Maxim Integrated 2 www.maximintegrated.com