PC929J00000F Datasheet PC929J00000F, PC929PYJ000F | P13-P15

Sheet No.: D2-A06302EN

13

PC929J00000F Series

V

CC

=24V

I

F

=5mA

R

G

=47Ω

C

G

=3 000pF

R

C

=1kΩ

C

P

=1 000pF

2

0

0.2

0.4

0.6

0.8

1

1.2

1.4

1.6

1.8

−25 0 25 50 75 100

Ambient temperature T

a

(°C)

O

2

output voltage at protection from

overcurrent primary side mark V

OE

(V)

0

0.1

0.2

0.3

0.4

0.5

Low level error signal voltage V

FSL

(V)

V

CC

=24V

I

F

=5mA

I

FS

=10mA

R

G

=47Ω

C

G

=3 000pF

C=OPEN

−25 0 25 50 75 100

Ambient temperature T

a

(°C)

10

−6

10

−7

10

−8

10

−9

High level error signal current I

FSH

(A)

V

CC

=24V

I

F

=5mA

R

G

=47Ω

C

G

=3 000pF

V

C

=0

−25 0 25 50 75 100

Ambient temperature T

a

(˚C)

Fig.34

O

2

Output Voltage at Protection from

Overcurrent vs. Ambient Temperature

Fig.36 High Level Error Signal Current vs.

Ambient Temperature

Fig.35 Low Level Error Signal Voltage vs.

Ambient Temperature

0

1.5

1.2

0.9

0.6

0.3

Error signal "H-L" propagation delay time t

PCFHL

(µs)

V

CC

=24V

I

F

=5mA

R

FS

=1.8kΩ

R

G

=47Ω

C

G

=3 000pF

R

C

=1kΩ

C

P

=1 000pF

−25 0 25 50 75 100

Ambient temperature T

a

(˚C)

Fig.33

Error Signal "High-Low" Propagation

Delay Time vs. Ambient Temperature

Fig.37 Error signal output pulse width vs.

Ambient Temperature

0

50

40

30

20

10

Error signal output pulse width ∆t

FS

(µs)

V

CC

=24V

I

F

=5mA

R

FS

=1.8kΩ

R

G

=47Ω

C

G

=3 000pF

R

C

=1kΩ

C

P

=1 000pF

−25 0 25 50 75 100

Ambient temperature T

a

(°C)

Fig.38 Overcurrent Detecting Voltage vs.

Supply Voltage

0

5

10

15

20

25

Added resistance=0Ω

0.5kΩ

1kΩ

1.5kΩ

Overcurrent detecting voltage V

CTH

(V)

15 18 21 24 27 30

Supply voltage V

CC

(V)

T

a

=25˚C

I

F

=5mA

V

CC

=24V

R

G

=47Ω

C

G

=3 000pF

R

C

=1kΩ

FS=OPEN

C

P

=1 000pF

Sheet No.: D2-A06302EN

14

PC929J00000F Series

Fig.40 Example of The Application Circuit (IGBT Drive for Inverter)

Fig.39 Overcurrent Detecting Voltage - Supply Voltage Characteristics Test Circuit

Anode

Cathode

PC929J00000F

V

CC

O

1

O

2

C

FS

GND

R

G

R

C

V

O2

C

P

C

G

V

CC

V

C

Added resistance

I

F

V

• In order to stabilize the power supply line, we recommend to locate a bypass capacitor C

B

(0.01µF or more)

between V

CC

and GND near photocoupler.

• In order to stabilize the detecting voltage of pin-C, we recommend to locate a capacitor C

P

(approximately

1 000pF) between pin-C and GND, and a resistor R

C

(approximately 1.0kΩ) between V

CC

and pin-C.

However, the rise time of the detection voltage at Pin-C varies along with the time constants of C

P

and R

C

.

So, please make sure the device works properly in actual conditions.

• For the diode D, which is located between pin-C and collector of IGBT, we recommend to use a diode that

has the withstand voltage characteristic equivalent to IGBT and also has little leak current.

• In order to prevent the failure mode or breakdown of pin-C from V

CE

variation of IGBT, we recommend to

locate a resistor R

2

(approximately 10kΩ) and a diode D1 at near pin-C, and a resistor R

3

(approximately

50kΩ) and a diode D

2

at between pin-C and GND.

This application circuit shows the general example of a circuit, and is not a design guarantee

for right operation.

PC929J00000F

Anode

Cathode

TTL, micro computer,

etc.

V

CC

O

1

O

2

C

B

C

p

F

S

GND

R

G

R

C

R

2

D

2

D

1

R

3

R

1

R

FS

PC817X etc.

To micro computer

+

C

FS

(+)

(−)

Power supply

Cathode

+

V

CC1

=12V

V

CC2

=12V

Sheet No.: D2-A06302EN

15

PC929J00000F Series

Fig.41 Operations of Shortcircuit Protector Circuit

Remarks : Please be aware that all data in the graph are just for reference and not for guarantee.

1. Detection of increase in V

CE(sat)

of IGBT due to overcurrent by means of C terminal (pin )

2. Reduction of the IGBT gate voltage, and suppression of the collector current

3.

Simultaneous output of signals to indicate the shortcircuit condition (FS signal) from FS

(pin )

terminal to

the microcomputer

4. J

udgement and processing by the microcomputer In the case of instantaneous shortcircuit, run continues.

At fault, input to the photocoupler is cut off, and IGBT is

turned OFF.

9

8

Anode

TTL, micro computer, etc.

Amp.

Constant voltage circuit

PC929J00000F

IGBT protector

circuit

V

CC

Tr. 1

Tr. 2

Typ. 150kΩ

O

1

O

2

C

V

C

FS

GND

Feedback to primary side

Cathode

V

CC

R

G

R

C

P

V

EE

IGBT

3

2

8

9

1014

11

12

13

1

Interface

PC929J00000F

PC929J00000F

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