Reference Board User s Manual for SiC6xx

Transcription

1 DESCRIPTION Reference Board User s Manual for This manual is good for all DrMOS products with MLP5x5-3L footprints and Vishay part list show-in as below, SiC60CD-T-GE3, SiC60ACD-T-GE3, SiC60RCD-T-GE3, SiC60ARCD-T-GE3 SiC63CD-T-GE3, SiC63CD-T-GE3, SiC634CD-T-GE3 This reference board (Fig. ) allows the end user to evaluate the family devices for their features and functionalities. It can also be a reference design for a user s application. Fig. - MLP5x5-3L Reference Board CONNECTION AND SIGNAL / TEST POINTS Power Sockets J7 - V IN (see device datasheet for V IN range) J8 - V OUT J9, J0 - Power Ground Signal and Test Leads PIN # NAME FUNCTION TP V IN INPUT voltage measurement pin TP Ground Ground pin for INPUT voltage measurement TP3 V OUT OUTPUT voltage measurement pin TP4 Ground Ground pin for OUTPUT voltage measurement J V CIN Supply voltage for internal logic circuitry J V DRV Supply voltage for internal gate driver J3 ZCD_EN# ZCD_EN# is LOW, diode emulation is allowed. When ZCD_EN# is HIGH, continuous conduction mode is forced. ZCD_EN# can also be put in a high impedance mode by floating the pin. J4 PWM PWM input logic J5 GL Low-side MOSFET gate signal J6 LX Switch node of the power stage J3 GH High-side MOSFET gate signal J4 PHASE Return path of high-side gate driver J5 DSBL# Disable pin. Active low J6 THWn Thermal warning open drain output Revision: 08-Nov-7 Document Number: ARE SUBJECT TO SPECIFIC DISCLAIMERS, SET FORTH AT

2 OPERATION. Enable the device: jump DISBL# leads.. Connect logic and drive voltage: set a power supply output voltage to 5 V and connect it to J (V DRV ) pins. Since R is populated, J (V CIN ) is shorted to J (V DRV ) pins. 3. To power J (V CIN ) and J (V DRV ) pins seperately with two different power supplies, make sure R is removed to avoid short between power supplies. 4. Connect PWM signal: preset a waveform or function generator with desired amplitude, frequency and duty cycle, and connect it to J4 (PWM). As an example, for V to.8 V; 500 khz operating condition, the function generator can be set to pulse mode with 500 khz frequency; 300 ns on time, 0 V to 5 V amplitude (0 V to 3.3 V for A version). By increasing or decreasing on time, corresponding duty cycle will vary. 5. Connect input power supply with desired voltage to J7 (V IN+ ) and J0 (P ) sockets. Now the system should be up running. If diode emulation mode is wanted, connect ZCD_EN# (J3) with external control signal. If OTP trip point is to be checked, monitor J6 (THWn) by either connecting it to a volt meter or probing it on oscilloscope. Change Output Voltage If different output voltage is needed, then simply turn the PWM duty cycle up or down. PCB LAYOUT Top Revision: 08-Nov-7 Document Number: ARE SUBJECT TO SPECIFIC DISCLAIMERS, SET FORTH AT

3 Inner Layer Inner Layer Revision: 08-Nov-7 3 Document Number: ARE SUBJECT TO SPECIFIC DISCLAIMERS, SET FORTH AT

4 Inner Layer 3 Inner Layer 4 Revision: 08-Nov-7 4 Document Number: ARE SUBJECT TO SPECIFIC DISCLAIMERS, SET FORTH AT

5 Bottom SCHEMATIC J VCIN VCIN J7 J0 +C4 C/NC +C5 C/00U C/0uF/35V C6 C/0uF/35V C7 J3 C/0uF/35V GH J4 C8 PHASE C/0uF/35V C9 C/0uF/35V C0 TP C/0uF/35V TP C C/0n R8 R/400K C8 R6 R/NC C C/NC P P P P R4 R/R PHASE PHASE 7 GH BOOT 6 GH 5 BOOT C C/00n 4 C U U/SiC60CD C C/U VCIN 3 VCIN R R/R ZCD_EN# ZCD_EN# PWM 3 PWM LX C TP3 C3 C4 C5 C6 C7 C8 C9 C0 C C/470uF C/uF C/uF C/uF C/uF C/uF C/uF C/uF C/uF + DSBL# THWn VDRV P GL R R/0 3 DSBL# THWn VDRV GL L INDUCTOR L INDUCTOR R3 R/0 VDRV C3 C/U R5 R/400K J VOUT VDRV 3 J3 ZCD_EN# J4 PWM J5 GL R7 R/0K VOUT J8 J5 DSBL# J6 THWn C C3 C4 C5 C6 C7 C/uF C/uF C/uF C/uF C/uF C/uF TP4 J6 LX Revision: 08-Nov-7 5 Document Number: ARE SUBJECT TO SPECIFIC DISCLAIMERS, SET FORTH AT

6 BILL OF MATERIALS ITEM QUANTITY DESIGNATOR DESCRIPTION FOOTPRINT COMMENT PART NUMBER VENDER C, C3 Capacitor C-0603 C / V CC0603KRX7R5BB05 Yageo C Capacitor C-0603 C / 00 nf AC0603KRX7R7BB04 Yageo 3 C4 Capacitor C-HS8-3.5 C / NC ND 4 C5 Capacitor C-Case-D C / 00 V T49X07K05ZT Kemet 5 6 C6, C7, C8, C9, C0, C Capacitor C-06 C / 0 μf / 35 V GMK36AB706KL- TR Taiyo Yuden 6 C Capacitor C-0805 C / NC ND 7 C3 Capacitor C-Case-D C / 470 μf EEF-SX0E33ER Panasonic 8 4 C4, C5, C6, C7, C8, C9, C0, C, C, C3, C4, C5, C6, C7 Capacitor C-0805 C / μf CC0805KKX5R5BB6 Yageo 9 C8 Capacitor C-0603 C / 0 nf AC0603KRX7R9BB03 Yageo 0 L Inductor L-4040 TBD FP007R-R7-R Copper Bussmann R, R4 Resistor R-0603 R /. Generic R, R3 Resistor R-0603 R / 0 Generic 3 R5, R8 Resistor R-0603 R / 400 k Generic 4 R6 Resistor R-0805 R / NC ND 5 R7 Resistor R-0603 R / 0 k Generic 6 U DrMOS 5 x 5 MLP55-3L Vishay Revision: 08-Nov-7 6 Document Number: ARE SUBJECT TO SPECIFIC DISCLAIMERS, SET FORTH AT