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2ED020I12FA Schematic ( PDF Datasheet ) - Infineon

Teilenummer 2ED020I12FA
Beschreibung Dual IGBT Driver IC
Hersteller Infineon
Logo Infineon Logo 




Gesamt 28 Seiten
2ED020I12FA Datasheet, Funktion
2ED020I12FA
Dual IGBT Driver IC
SP001054678
1 Overview
Main Features
• Dual channel isolated IGBT Driver
• For 600V/1200V IGBTs
• 2 A rail-to-rail output
• Vcesat-detection
• Active Miller Clamp
Product Highlights
• Coreless transformer isolated driver
• Basic insulation according to DIN EN 60747-5-2
• Basic insulation recognized under UL 1577
• Integrated protection features
• Suitable for operation at high ambient temperature
• AEC Qualified
Typical Application
• Drive inverters for HEV and EV
• Auxiliary inverters for HEV and EV
• High Power DC/DC inverters
Description
The 2ED020I12FA is a galvanic isolated dual channel IGBT driver in PG-DSO-36 package (32 pins) that provides
two fully independent driver outputs with a current capability of typically 2A.
All logic pins are 5V CMOS compatible and could be directly connected to a microcontroller.
The data transfer across galvanic isolation is realized by the integrated Coreless Transformer Technology.
The 2ED020I12FA provides several protection features like IGBT desaturation protection, active Miller clamping
and active shut down.
Type
2ED020I12FA
Package
PG-DSO-36
Marking
2ED020I12FA
Data Sheet
www.infineon.com
1
Rev. 3.1
2016-04-05






2ED020I12FA Datasheet, Funktion
2ED020I12FA
Dual IGBT Driver IC
Pin Configuration and Functionality
3 Pin Configuration and Functionality
3.1 Pin Configuration
Table 1 Pin Configuration
Pin Name
No.
Function
1 GND1
Common ground input side
2 INHS+
Non inverted driver input high side
3 INHS-
Inverted driver input high side
4 RDYHS
Ready output high side
5 /FLTHS
Inverted fault output high side
6 /RSTHS
Inverted reset input high side
7 VCC1HS
Positive power supply input high side
8 GND1
Common ground input side
9 NC
Not used, internally connected to Pin 10
10 NC
Not used, internally connected to Pin 9
11 GND1
Common ground input side
12 INLS+
Non inverted driver input low side
13 INLS-
Inverted driver input low side
14 RDYLS
Ready output low side
15 /FLTLS
Inverted fault output low side
16 /RSTLS
Inverted reset input low side
17 VCC1LS
Positive power supply input low side
18 GND1
Common ground input side
19 VEE2LS
Negative power supply low side driver
20 DESATLS
Desaturation protection low side driver
21 GND2LS
Signal ground low side driver
22 VCC2LS
Power supply low side driver
23 OUTLS
Output low side driver
24 VEE2LS
Negative power supply low side driver
25 CLAMPLS
Miller clamping low side driver
26 Pin not existing, cut out
27 Pin not existing, cut out
28 Pin not existing, cut out
29 Pin not existing, cut out
30 DESATHS
Desaturation protection high side driver
31 VEE2HS
Negative power supply high side driver
Data Sheet
6
Rev. 3.1
2016-04-05

6 Page









2ED020I12FA pdf, datenblatt
2ED020I12FA
Dual IGBT Driver IC
Functional Description
4.3.3 Watchdog Timer
During normal operation the internal signal transmission is monitored by a watchdog timer. If the
transmission fails for a given time, the IGBT is switched off and the READY output reports an internal error.
4.3.4 Active Shut-Down
The Active Shut-Down feature ensures a safe IGBT off-state if the output chip is not connected to the power
supply, IGBT gate is clamped at OUTxx to VEE2xx.
4.4 Non-Inverting and Inverting Inputs
There are two possible input modes to control the IGBT. At non-inverting mode INxx+ controls the driver
output while INxx- is set to low. At inverting mode INxx- controls the driver output while INxx+ is set to high,
please see Figure 6. A minimum input pulse width is defined to filter occasional glitches.
4.5 Driver Outputs
The output driver sections uses only MOSFETs to provide a rail-to-rail output. This feature permits that tight
control of gate voltage during on-state and short circuit can be maintained as long as the drivers supply is
stable. Due to the low internal voltage drop, switching behavior of the IGBT is predominantly governed by the
gate resistor. Furthermore, it reduces the power to be dissipated by the driver.
4.6 External Protection Features
4.6.1 Desaturation Protection
A desaturation protection ensures the protection of the IGBT at short circuit. When the DESAT voltage goes up
and reaches VDESAT_TH, the output is driven low. Further, the FAULT output is activated, please refer to Figure 7.
A configurable blanking time is used to allow enough time for IGBT saturation. Blanking time is provided by a
highly precise internal current source and an external capacitor.
4.6.2 Active Miller Clamp
In a half bridge configuration the switched off IGBT tends to dynamically turn on during turn on phase of the
opposite IGBT. A Miller clamp allows sinking the Miller current across a low impedance path in this high dV/dt
situation. Therefore in many applications, the use of a negative supply voltage can be avoided.
During turn-off, the gate voltage is monitored and the clamp output is activated when the gate voltage goes
below VCLAMP_TH. The clamp is designed for a Miller current up to ICLAMPL.
4.6.3 Short Circuit Clamping
During short circuit the IGBTs gate voltage tends to rise because of the feedback via the Miller capacitance. An
additional protection circuit connected to OUTxx and CLAMPxx limits this voltage to a value slightly higher
than the supply voltage. A current of maximum 500 mA for 10 μs may be fed back to the supply through one of
this paths. If higher currents are expected or a tighter clamping is desired external Schottky diodes may be
added.
4.7 RESET
The reset inputs have two functions.
Data Sheet
12
Rev. 3.1
2016-04-05

12 Page





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