CogniPower IGBT switch drivers build on our patent-pending FET switch driver technology.
These drivers fill the need for the faster, more powerful switch drivers required to take full
advantage of the newest generation of IGBT switch modules. They can deliver 3 to 5 times the
average power at up to 50 Amps peak drive current. CogniPower IGBT switch drivers are
designed for higher voltage operation and work in single-, dual-, and multi-level systems.
Tight timing control over the temperature range and generous power delivery capability allow
faster operation and better control at higher switching speeds. Faster switching translates
directly to lower switching losses. The higher average power available eliminates the need for
multiple drivers in most applications. Each driver channel is fully isolated. No optocouplers are
employed.
The initial product offering is suited for the Econo-Dual style package. The system is modular,
so only a new carrier board will be needed for other IGBT switch packages. We will be
expanding our product line to suit customer requirements. Please contact CogniPower with your
IGBT switch driver needs.
Gate driver waveform from half bridge module
running at 25kHz
IGBT Switch Driver Model CP-ECD-7W-E(x)D(y)-(z)U
Features:
* Dual channel driver
* Highly integrated plug-and-play solution
* Interface for 3.3, 5V or 15V logic level
* +15V/-15V gate drive
* Peak gate drive current +50A/-50A
* Separate gate current paths (on/off)
* Suitable for IGBTs up to 1700V
* Direct or half bridge mode
* Flexible fault management
* 2-level and multi-level topologies
* IGBT desaturation protection
* Isolated DC/DC converter
* 2 x 7.5W output power
* Power supply under-voltage lockout
* Power input over-current protection
* Power input over-voltage protection
* Superior EMI emissions and susceptibility
* Reliable, long service life
* Easy mounting directly onto IGBT package
Specifications:
Parameter
Min
Typical
Max
Unit
Nominal supply voltage
14.75
15
18
V
Supply current @ fIN 0Hz
200
mA
Supply current, full load
1.25
A
Output power per channel ( Note 1 )
7.5
W
Gate voltage
+/-13.5
+/-15
+/-16
V
Peak output current (gate current)
-50
+50
A
Switching frequency fIN ( Note 2 )
0
250
kHz
Minimum ON or OFF period (factory programmable)
600
nS
Turn-on and Turn-off delay
<300
nS
Fault reporting latency
<300
nS
Blocking time (after fault)
1.5
mS
Creepage distance primary-secondary
22
mm
Dielectric test voltage ( Note 3 )
4400
10,000
VAC
Partial discharge extinction voltage
3000
Vpeak
dv/dt immunity, input to output
75
kV/µS
Operating temperature
-20
+85
°C
Note 1: 9 Watt version available on request
Note 2: Maximum operating frequency may be limited by output power,
half bridge dead time, or power dissipation in gate resistors.
Optional heatsinking is available for gate resistors.
Note 3: Higher isolation voltages available
Factory set options:
Desaturation threshold 1 to 11 Volts, default 7.5 V
Half Bridge Mode Dead time 200nS to 10µS, default 3 uS
Input Logic Level 3.3, 5, or 15V, default 5 Volts
Enhance gate resistor 0.1 Ohms to 10 Ohms, default 1.1 ohm
Deplete gate resistor 0.1 Ohms to 10 Ohms, default 1.1 ohm
Part Number Derivation:
Field:
1
-
2
-
3
-
4
-
5
CP
-
ECD
-
7W
-
ExDy
-
zU
1
CogniPower
2
Econo-Dual style IGBT Module
3
Watts per gate, 7 Watts is now standard
4
Enhance and deplete resistor values in ohms x=Enhance y=Deplete 1 ohm is default for both
5
z=Dead time in micro seconds, default is 3 micro seconds
Options:
- mtX
X= minimum on or off time in ns, default is 600ns
-DTn
n= desaturation threshold in volts, default is 7.5 v
-ML
for multi-level systems, error reporting and gate control are independent,
default is gentle OFF local action upon error
-HS
with heat sink for enhance and deplete resistors
Note -HS option makes field changing of gate resistors more difficult.
-HV
High isolation voltage option, standard is 4400 test voltage for 1700 volt operation
Contact factory with complete part number for price and availability.
Evaluation systems supplied with matching connector, TycoŽ 5-103958-8, or equivalent.
Specifications Rev D January 2012
Specifications are subject to change without notice.