Wurth Elektronik MDC901-EVKHB, Technical Manual

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MDC901-EVBHB Rev2021Jan5 MinDCet NV www.mindcet.com
Attention: Please refer to Evaluation Kit Important Notice on page 20 Page 6
12V Fan Power Supply
The VDRM MAGI³C Power Module from Würth Elektronik provides a regulated 12V output, suppling
the fan socket as well as the MDC901 itself.
For specifications and more information, refer to the most recent datasheet at https://www.we-
online.de/powermodules
Inductor & Input/output Capacitor Bank
For direct EVB evaluation purposes, a 1.4µH Würth Elektronik inductor and the fitting input/output
capacitors were selected for a buck converter topology, designed for high current applications up to 30A
output current.
Input Pins
The Inputs table describes the jumper position for the default IC state, which is for automatic dead
time control.
Pin # Pin Name Default State
Function
- ENABLE +5V General enable for gate driver functionality
1
MLS_sel +5V
Digital PWM input controlling HS and LS driver functions.
See CAUTION:
Dead time must be monitored by an
oscilloscope in manual dead time mode to avoid
HS/LS overlap
Four operating modes are available for MDC901 operation,
defined by MHS_sel and MLS_sel state, described in the
truth table in Table 1.
Table 1 for mode description & truth table
2
MHS_sel GND
Digital PWM input controlling HS and LS driver functions.
See CAUTION:
Dead time must be monitored by an
oscilloscope in manual dead time mode to avoid
HS/LS overlap
Four operating modes are available for MDC901 operation,
defined by MHS_sel and MLS_sel state, described in the
truth table in Table 1.
Table 1 for mode description & truth table
3
Dis_ILD GND
Digital PWM input controlling HS and LS driver functions.
See CAUTION:
Dead time must be monitored by an
oscilloscope in manual dead time mode to avoid
HS/LS overlap
Four operating modes are available for MDC901 operation,
defined by MHS_sel and MLS_sel state, described in the
truth table in Table 1.
Table 1 for mode description & truth table
4
VinHS PWM (0/5V)
Digital PWM input controlling HS and LS drivers. Function
reflected in Table 1
5
VinLS GND
Digital PWM input controlling HS and LS drivers. Function
reflected in Table 1
6
TgapOff_4 GND
Digital dead-time generation tuning input for feed forward
turn-on delay.
7
TgapOff_3 GND
Digital dead-time generation tuning input for feed forward
turn-on delay.