MIC4608 Evaluation Board 600V Half Bridge MOSFET Driver Revision 1.0 General Description Requirements The MIC4608 is a 600V Half Bridge IGBT or MOSFET driver. The MIC4608 features a 450ns propagation delay including a 200ns input filtering time to prevent unwanted pulses. The low-side and high-side gate drivers are independently controlled (with shoot thru protection) or controlled with a single PWM signal. The MIC4608 has TTL input thresholds. Under-voltage protection is provided on both the low-side and high-side drivers. The MIC4608 evaluation board requires a VDD power supply with an output between 10V and 20V and a high voltage VBUS power supply that is used to drive the Motor or other load. Do not exceed 450V on VBUS unless C8 is removed. (See below.) The MIC4608 is available in a 14-pin SOIC package and has an operating junction temperature range of –40°C to +125°C. Datasheets and support documentation are available on Micrel’s web site at: www.micrel.com. Precautions The evaluation board does not have reverse polarity protection. Applying a negative voltage to either the VBUS (J6) or VDD (J7) terminals may damage the device. Do not exceed 450V on VBUS due to the 450V rating of the 10µF Aluminum Electrolytic capacitor (C8). Remove C8 if voltages between 450V and 600V are required. Ordering Information Part Number Description MIC4608YM EV MIC4608YM Evaluation Board Micrel Inc. • 2180 Fortune Drive • San Jose, CA 95131 • USA • tel +1 (408) 944-0800 • fax + 1 (408) 474-1000 • http://www.micrel.com May 8, 2015 Revision 1.0 Micrel, Inc. MIC4608 Evaluation Board Circuit Description Getting Started The evaluation board consists of the MIC4608 driver and two IGBTs, connected in a ½ bridge configuration. The board may be used to drive a motor, solenoid or other load. Headers on the board provide connections to VDD, HI, LI, ST (state pin) and EN. Connect the input supply Connect the VDD supply to the VDD and Ground terminals (J7). Pay careful attention to the polarity and supply voltage range (10V minimum to 20V maximum). An ammeter may be placed between the supply and the VDD terminal to measure input current. State Pin (ST) The state pin configures the driver for single (PWM) input or independent (HI/LI) input operation. A jumper on J3 is may be used to set the ST input high or low. Connect the VBUS supply and Load Connect the high voltage VBUS supply and ground to connector J6. The evaluation board restricts the maximum VBUS voltage to 450V due to the rating of the input Aluminum Electrolytic capacitor (C8). For voltages between 450V and 600V, C8 must be removed. The motor or load may be connected between either J6 pins 1 to 2 (high side connection) or between J6 pins 2 to 3 (low side connection). If connected between pins 1 and 2, the low-side IGBT actively PWMs the load, while the high-side IGBT acts as the freewheeling device. If connected between pins 2 and 3, the high-side IGBT actively PWMs the load, while the low-side IGBT acts as the freewheeling device. Setting the ST pin low allows the HO and LO outputs to be independently controlled by the HI and LI pins respectively. Setting the ST pin high will disable the LI input and the HO and LO pins are controlled by the HI pin. Dead time is automatically added between the HO and LO outputs in this mode. Enable Pin (EN) An external connection or a jumper on J4 may be used to set the EN pin state. When using an external connection, make sure the EN pin voltage does not exceed VDD. Setting the EN pin low puts the device into a low IQ state and turns off both the LO and HO outputs. A high level on the EN pin turns on the internal bias’ in the driver and allows the driver to operate normally. Input Pins (HI/LI) Header J2 may be used to make the input connection to the driver. If the ST pin is low, the HI input controls the HO output and the LI pin controls the LO output. Both drivers are non-inverting. If the ST pin is high, the LI pin is disabled and the HI pin controls both the HO and LO outputs. If the HI in is high, the LO pin goes low and the HO pin is high. If the HI pin is low, the HO pin goes low and the LO pin goes high. Internal circuitry prevents both outputs from being in a high state at the same time. May 8, 2015 2 Revision 1.0 Micrel, Inc. MIC4608 Evaluation Board Evaluation Board Schematic May 8, 2015 3 Revision 1.0 Micrel, Inc. MIC4608 Evaluation Board Bill of Materials Item Part Number C1 No Fill C2, C7 C10 CKG57NX7T2J105M500JH SK100M450ST Manufacturer Description Qty. 0 (1) TDK (2) Cornell Dubilier (3) 1µF, 630V, X7T, Ceramic Capacitor 2 10µF, 450V, Aluminum Electrolytic 1 33µF, 35V, Aluminum Electroltyic 1 C3 EEE-FK1V330P Panasonic C4, C6, C9 C2012X7S2A105K125AE TDK 1µF, 100V, X7S, 0805 3 C5 C2012X7R2A102M085AA TDK 1nF, 100V, X7R, 0805 1 D1, D2, D3, D4 US1M-E3 Vishay 1A, 1kV, Fast Recovery Diode 4 Q1, Q2 IRG4RC10UDTRLP IR IGBT, 600V, 8.5A, DPAK 2 10Ω (0603 size), 1% 4 (4) (5) Vishay Dale (6) R1, R2, R14 CRCW060310R0FRT1 R3 No Fill R6, R7 CRCW0600000FRT1 Vishay Dale 0Ω (0603 size) 2 R8, R9, R10, R13 CRCW06031002FRT1 Vishay Dale 10kΩ (0603 size), 1% 4 U1 MIC4608YM Micrel 600V Half Bridge MOSFET or IGBT Driver 1 0 (7) Notes: 1. TDK: www.tdk.com. 2. Cornell Dubilier: www.cde.com. 3. Panasonic: www.panasonic.com. 4. Vishay: www.vishay.com. 5. IR: www.IRF.com. 6. Vishay: www.vishay.com. 7. Micrel, Inc.: www.micrel.com. May 8, 2015 4 Revision 1.0 Micrel, Inc. MIC4608 Evaluation Board PCB Layout Top Layer Bottom Layer May 8, 2015 5 Revision 1.0 Micrel, Inc. MIC4608 Evaluation Board MICREL, INC. 2180 FORTUNE DRIVE SAN JOSE, CA 95131 USA TEL +1 (408) 944-0800 FAX +1 (408) 474-1000 WEB http://www.micrel.com Micrel, Inc. is a leading global manufacturer of IC solutions for the worldwide high performance linear and power, LAN, and timing & communications markets. The Company’s products include advanced mixed-signal, analog & power semiconductors; high-performance communication, clock management, MEMs-based clock oscillators & crystal-less clock generators, Ethernet switches, and physical layer transceiver ICs. Company customers include leading manufacturers of enterprise, consumer, industrial, mobile, telecommunications, automotive, and computer products. Corporation headquarters and state-of-the-art wafer fabrication facilities are located in San Jose, CA, with regional sales and support offices and advanced technology design centers situated throughout the Americas, Europe, and Asia. Additionally, the Company maintains an extensive network of distributors and reps worldwide. Micrel makes no representations or warranties with respect to the accuracy or completeness of the information furnished in this datasheet. This information is not intended as a warranty and Micrel does not assume responsibility for its use. Micrel reserves the right to change circuitry, specifications and descriptions at any time without notice. No license, whether express, implied, arising by estoppel or otherwise, to any intellectual property rights is granted by this document. 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