1ED020I12FTA Datasheet, PDF (12/27 Pages) Infineon Technologies AG – Single IGBT Driver IC

3.2
Pin Functionality
EICEDRIVER®
1ED020I12FTA
Pin Configuration and Functionality
GND1
Ground connection of the input side.
IN+ Non-inverting driver input
IN+ control signal for the driver output if IN- is set to low. (The IGBT is on if IN+ = high and IN- = low)
A minimum pulse width is defined to make the IC robust against glitches at IN+. An internal Pull-Down-Resistor
ensures IGBT Off-State.
IN- Inverting driver input
IN- control signal for driver output if IN+ is set to high. (IGBT is on if IN- = low and IN+ = high)
A minimum pulse width is defined to make the IC robust against glitches at IN-. An internal Pull-Up-Resistor
ensures IGBT Off-State.
/RST (Reset) input
Function 1: Enable/shutdown of the input chip. (The IGBT is off if /RST = low). A minimum pulse width is defined
to make the IC robust against glitches at IN-.
Function 2: Resets the DESAT-FAULT-state of the chip if /RST is low for a time T_RST. An internal Pull-Up-Resistor
is used to ensure FLT status output.
/FLT (Fault output)
Open-drain output to report a desaturation error of the IGBT (FLT is low if desaturation occurs)
RDY (Ready status)
Open-drain output to report the correct operation of the device. (RDY = high if both chips are above the UVLO
level and the internal chip transmission is faultless)
VCC1
5V power supply of the input chip
VEE2
Negative power supply pins of the output chip. If no negative supply voltage is available, all VEE2 pins have to be
connected to GND2.
DESAT (Desaturation)
Monitoring of the IGBT saturation voltage (V_CE) to detect desaturation caused by short circuits. If OUT is high, V_CE
is above a defined value and a certain blanking time has expired, the desaturation protection is activated and the
IGBT is switched off. The blanking time is adjustable by an external capacitor.
CLAMP (Clamping)
Ties the gate voltage to ground after the IGBT has been switched off at a defined voltage to avoid a parasitic
switch-on of the IGBT.During turn-off, the gate voltage is monitored and the clamp output is activated when the
gate voltage goes below 2V (related to VEE2).
GND2
Reference ground of the output chip.
Preliminary Datasheet
10
Version 1.2, 2010-05-21