AMG-DF102
Full Bridge MOSFET/IGBT Driver up to 600V
5. Block Descriptions
5.1. Voltage Divider VCC
• Internal reference voltage for logic inputs (connection to INB, IN1, IN2).
5.2. Input Enable
• Enables the digital inputs and the UV-Detection for VCC. The ENQ is a CMOS input
equipped with a pull-up resistor. The enable input needs be pulled low to enable device
operation. If the enable pin is left unconnected or pulled high, all outputs are pulled low.
5.3. Trigger input
• CMOS differential amplifier with hysteresis. The negative input is attached to the internal
reference while the positive input is connected to the corresponding input pins. Inputs are
equipped with a pull-down resistor.
5.4. UV Detection on VCC
• CMOS comparator with a hysteresis to detect under voltage supply conditions on VCC.
5.5. Logic and dead time
• Input logic and dead time insertion. The dead time is set internally by an RC-combination.
5.6. Pulse-Generator
• Pulse generation from falling and rising edges of the input signal. These pulses are
transmitted to the floating high side gate driver stages. This leads to lower power
consumption.
5.7. HV-Level-Shifter
• Level shifting the pulses of the pulse generators to the floating high side driver output
stages.
5.8. Filter
• Filtering noise and transients.
5.9. R-S
•
Latch for storing the current output state.
AMG-DF102
Revision: AB
30. Nov. 2010
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