2SB315B
Data Sheet 2SB315B-CM800DZ-34H
Page 4 CT-Concept.com
Electrical insulation Test conditions Min Typ. Max Units
Operating voltage Continuous or repeated (Note 4) 1150 V
dc
Test voltage 50 Hz/1 min (Note 11) 4000 V
AC(eff)
Partial discharge extinction volt. IEC270
(Note 12) >1700 V
AC(pk)
Creep path input-output 20 mm
Creep path output-output 25 mm
Maximum dV/dt at dV=1000 V Note 13 100 kV/μs
All data refer to +25°C and V
DC
= 15 V unless otherwise specified
Footnotes to the key data
1) The drivers have a zener diode on each channel for over-voltage protection. When the feed voltage
exceeds 16V, this protection may be exposed to thermal overload.
2) If the specified power consumption is exceeded, this indicates an overload of the DC/DC converter.
It should be noted that these DC/DC converters are not protected against overload.
3) Application-specific self-heating of gate drivers and IGBT modules, especially at high switching
frequency, must be taken into account. As a rule, the switching frequency is limited due to the
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. Users are therefore recommended to check the
gate driver’s ambient temperature within the system.
4) This limit is due to active clamping. Refer to the “Description and Application Manual for 2SB315B
SCALE Dual-Channel Plug-and-play IGBT Driver”.
5) Under-voltage monitoring of the supply voltage to the gate driver. If the voltage drops below this
limit, the power modules are switched off.
6) The gate current is limited by the gate resistors located on the driver.
7) Pulse width of the direct output of the gate drive unit (excluding the delay of the gate resistors).
8) The typical blocking time after an error is 1 second. Versions with other blocking times may also be
supplied if required.
9) Measured from the transition of the turn-on or turn-off command at the host controller to direct
output of the gate drive unit (excluding the delay of the gate resistors).
10) Refers to the direct output of the gate drive unit (excluding the delay of the gate resistors).
11) The test voltage of 4000 V
ac(rms)
/50Hz 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 400V for each additional test. The more modern if more elaborate partial-discharge
measurement is preferable to such test methods as it is almost entirely non-destructive.
12) The partial discharge is not measured for the standard types. Tested and selected types with
guaranteed partial-discharge immunity can be supplied for applications with maximum
requirements and higher operating voltages (such as railroad applications).
13) This specification guarantees that the drive information will be transferred reliably even at a high
DC-link voltage and with ultra-fast switching operations.
14) 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
15) 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.
16) The transmitter current at the gate driver is about 29mA.
