1SD418F2
Data Sheet 1SD418F2-FZ1200R33KL2C
Page 4 CT-Concept.com
Footnotes to the key data
1) Supply voltages higher than those specified can lead to the destruction of the driver and protection
circuits on the output side. The gate-emitter voltage tracks the primary supply voltage. (Not
regulated by the supply circuitry or the gate drive unit.)
2) Static power consumption of the gate driver.
3) If the specified power consumption is exceeded on average, this indicates an overload of the
DC/DC converter. The DC/DC converter is not protected against overload.
4) Under-voltage monitoring of power supply. For a voltage lower than this limit, the power modules
are switched off. The voltage refers to the secondary supply voltage of the gate driver, which is
approximately the same as the voltage between VDC and GND.
5) This limit is due to active clamping. Refer to the “Description and Application Manual for 1SD418F2
SCALE High-Voltage IGBT Drivers”.
6) Pulse width of the direct output of the gate drive unit. (Excluding the delay of the gate resistors.)
7) Duration of blocking the command input (keeping the gate driver and the IGBT in the off-state)
after fault detection, i.e. power supply Under-voltage lock out, or – only in 2-level mode – short-
circuit detection. (For three/multilevel mode, turn-off under the short-circuit condition is managed
by the host controller.)
8) The gate current is limited by on-board gate resistors.
9) Refers to the direct output of the gate drive unit. (Excluding the delay of the gate resistors.)
10) Maximum continuous or repeatedly applied DC voltage or peak value of the repeatedly applied AC
voltage between the power supply inputs and all other terminals.
11) Including the delay of external fiber optic links. Measured from turn-on transition at direct output
of the gate drive unit (not covering the delay of the gate resistors) to the transition of status signal
at the host controller side optical receiver.
12) Application-specific self-heating of gate drivers and IGBT modules, especially at high switching
frequency, must be taken into account. The switching frequency is commonly limited due to
switching losses of the IGBT modules. Because CONCEPT cannot predict how the drivers will be
incorporated in the user’s application, no binding recommended value for self-heating and thus for
the maximum useable output power can be made. It is therefore recommended to check the gate
driver’s ambient temperature within the system.
13) Including the delay of external fiber-optic links. Measured from the transition of turn-on or turn-off
command at the optical transmitter on the host controller side to direct output of the gate drive
unit. (Excluding the delay of the gate resistors.)
14) Including the delay of external fiber-optic links. Measured from the transition of turn-on or turn-off
command at the optical transmitter on the host controller side to the transition of the acknowledge
signal at the optical receiver on the host controller side.
15) The test voltage may be applied only once during one minute. It should be noted that with this
(strictly speaking obsolete) test method, some (minor) damage occurs to the insulation layers due
to the partial discharge. Consequently, this test is not performed at CONCEPT as a series test. In
the case of repeated insulation tests (e.g. module test, equipment test, system test) the
subsequent tests should be performed with a lower test voltage: the test voltage is reduced by
10% for each additional test. The more modern if more elaborate partial-discharge measurement
is better suited than such test methods as it is almost entirely non-destructive.
16) The transceivers required at the host controller side are not delivered with the gate driver. It is
recommended to use the same types as used in the gate driver. For product information refer to
www.IGBT-Driver.com/go/fiberoptics
17) The customer-side connector is not supplied with the gate driver, but via FCI Inc. Recommended
crimp contact housing: order code 65039-032; recommended crimp contacts: 5 pcs, order code
48236-002. Refer to www.IGBT-Driver.com/go/fci
18) The recommended transmitter current at the host controller is 30-35mA, suitable for plastic optic
fibers with a length of less than 2.5 meters. Higher current may increase jitter or delay at turn-off.
19) The transmitter current at the gate driver is 30-35mA.
