Datasheet PC928 Datasheet (Sharp)

PC928

(

❈ TÜV

■

1. Built-in IGBT shortcircuit protector circuit

2. Built-in direct drive circuit for IGBT drive

3. High isolation voltage (V : 4 000V )

4. Half lead pin pitch (p=1.27 mm) package type

5. Recognized by UL, file NO. E64380

■

1. IGBT control for inverter drive

VDE 0884) approved type is also available as an option.

Features

(Peak output current ... I , I : MAX. 0.4A)

O1P O2P

iso rms

Application

PC928

Shortcircuit Protector Circuit
Built-in OPIC Photocoupler Suitable
for Inverter-Driving IGBT

Outline Dimensions

■

PC928

Primary
side mark

1234567

9.22

14 - 0.6 12 - 1.27

1011121314

89

6.5

0.26

0.35 3.5

1.0 1.0

(Unit : mm)

7.62

10.0

Internal connection diagram

Absolute Maximum Ratings

■

*1

Forward current I

Input

Reverse voltage V
Supply voltage V
O1 output current

*4

peak output current

O

1

output current

O

2

*4

peak output current

O

2

O

Output

output voltage

1

*2

Power dissipation P
Overcurrent detecting voltage
Overcurrent detecting current
Error signal output voltage
Error signal output current

*3

Total power dissipation P

*5

Isolation voltage V
Operating temperature T
Storage temperature T
Soldering temperature T

*1, 2, 3 Decrease in the ambient temperature range of the Absolute Max. Rating : Shown in Figs. 1 and 2.
*4 Pulse width<=0.15µs, Duty ratio=0.01
*5 40 to 60% RH, AC for 1 minute, Ta=25˚C

(Ta=Topr unless otherwise specified)

Symbol UnitParameter

I

I
V

V

Rating

F

6 (Ta= 25˚C

R

CC

I

O1

O1P

I

O2

O2P

O1

O

V

C

I

C

FS

I

FS

tot

iso

- 25to + 80 ˚C

opr

- 55to + 125 ˚C

stg

260 (for 10 sec)

sol

25 mA

)

35 V

0.1 A

0.4 A

0.1 A

0.4 A
35 V

500 mW
V

CC

30 mA

V

CC

20 mA

550 mW

4 000

Vrms

V

V

V

˚C

* "OPIC" (Optical IC) is a trademark of the SHARP Corporation.
An OPIC consists of a light-detecting element and signal processing
circuit integrated onto a single chip.

89

1011121314

IGBT protector

Interface

Constant

voltage circuit

1234567

circuit

Amp.

1 Anode
2 Anode
3 Cathode
4NC
5NC
6NC
7NC

Terminals 4 to 7 :
Shortcircuit in element

Operation truth table is shown on the next page.

8FS
9C
10

GND

11

O

2

12

O

1

13

V

CC

14

GND

“ In the absence of confirmation by device specification sheets, SHARP takes no responsibility for any defects that occur in equipment using any of SHARP's devices, shown in catalogs,

data books, etc. Contact SHARP in order to obtain the latest version of the device specification sheets before using any SHARP's device.”

PC928

Electro-optical Characteristics (1)

■

Parameter Symbol Conditions Unit

V

Forward voltage
Reverse current

Input

Terminal capacitance
Operating supply voltage

O

low level output voltage

1

O

high level output voltage

2

O2 low level output voltage

Output

leak current

O

1

High level supply current

Low level supply current

*7

"Low→High"
threshold input current

Isolation resistance R

"Low→High" propagation delay time
"High→Low" propagation delay time

Rise time t
Fall time t

Response time

Instantaneous common mode rejection
voltage "Output : High level"

Transfer characteristics

Instantaneous common mode rejection
voltage "Output : Low level"

*6 When measuring output and transfer characteristics, connect a bypass capacitor (0.01µ F or more) between Vcc and GND near the device.
*7 I represents forward current when O output goes from "Low" to "High".

FLH

*8 FS=OPEN, V =0V

C

2

V

V

V

V
V

I
I

I

I

t
t

CM

CM

I

C

O1L

O2H

O2L

O1L

CCH

CCL

FLH

ISO

PLH

PHL

F1

F2

R

t

CC

r

f

H

L

(Ta=Topr unless otherwise specified)

MIN. TYP. MAX.

Test circuit
Ta= 25˚C, IF= 20mA - 1.2 1.4 V ­Ta= 25˚C, IF= 0.2mA 0.6 0.9 - V ­Ta= 25˚C, VR=4V - - 10 µA­Ta= 25˚C, V= 0, f = 1kHz - 30 250 pF ­Ta= - 10 to60˚C 15 - 30 V

- 15 - 24 V

V

= 12V, V

CC1

I

= 0.1A, IF= 10mA

O1

V

CC=VO1

I

= 10mA

F

VCC=VO1= 24V, IO2= 0.1A, IF= 0mA
Ta= 25˚C, VCC=VO1= 35V, IF= 0mA
Ta= 25˚C, VCC=VO1= 24V, IF= 10mA
VCC=VO1= 24V, IF= 10mA
Ta= 25˚C, VCC=VO1= 24V, IF= 0mA
VCC=VO1= 24V, IF= 0mA
Ta= 25˚C, VCC=VO1= 24V
VCC=VO1= 24V

= 25˚C, DC500V, 40to60%RH

T

a

Ta= 25˚C, VCC=VO1= 24V
RG=47Ω, CG= 3 000pF, IF= 10mA

Ta= 25˚C, VCC=VO1= 24V, IF= 10mA
VCM= 600V(peak), ∆ V

Ta= 25˚C, VCC=VO1= 24V, IF= 0mA

= 600V(peak), ∆ V

V

CM

= - 12V

CC2

= 24V, IO2= - 0.1A

= 2.0V

O2H

= 2.0V

O2L

- 0.2 0.4 V

*8

20 22 - V

*8

- 1.2 2.0

*8

- - 500

*8

-1017mA

*8

- - 19 mA

*8

-1118mA

*8

- - 20 mA

*8

1.0 4.0 7.0 mA

*8

0.6 - 10 mA

*8

5x10

10

1x10

11

--Ω

- 1.0 2.0 µs

- 1.0 2.0 µs

- 0.2 0.5 µs

*8

- 0.2 0.5 µs

- 1 500

*8

1 500

*8

13

--V/µs

--V/µs

14

V

µ A

-

(1)

(2)
(3)

(4)

(

)

6

(5)

(8)

(

)

7

■

Truth Table

Input

ON

OFF

O

Output FS OutputC Input/output

2

Low level High level High level
High level Low level Low level
Low level Low level High level
High level Low level High level

For protective operation

PC928

Electro-optical Characteristics (2)

■

Parameter Symbol Conditions Unit

*9

*9

*9

*9 When measuring overcurrent, protective output and error signal output characteristics, connect a bypass capacitor (0.01µ F or more) between V and GND
*10 V represents C-terminal voltage when O output goes from "High" to "Low".

*10

Overcurrent detecting voltage
Overcurrent detecting voltage

detection

hysteresis width

Overcurrent

O2 "High→Low" delay time
at protection from overcurrent

O2 fall time at protection
from overcurrent

O2 output voltage at protection

Protective output

from overcurrent

Low level error
signal voltage

High level error
signal current

Error signal "High→Low"
delay time

Error signal output

Error signal output pulse width

CTH

V

V

t

PCOHL

t

PCOtf

V

CTH

CHIS

OE

Ta= 25˚C, IF= 10mA
V
C

= 24V, RG=47Ω

CC=VO1

= 3 000pF, FS= OPEN

G

Ta= 25˚C
V
C
C

= 24V, IF= 10mA

CC=VO1

= 3 000pF, RG=47Ω

G

= 1 000pF, RC=1kΩ

P

FS= OPEN

Ta= 25˚C, IF= 10mA, IFS= 10mA

V

FSL

VCC=VO1= 24V, RG=47Ω, CG= 3 000pF,
C = OPEN

T

= 25˚C, IF= 10mA, VFS= 24V,

I

FSH

a

V

= 24V, RG=47Ω, CG= 3 000pF,

CC=VO1

VC=0V

t

PCFHL

∆ t

2

Ta= 25˚C, RFS= 1.8kΩ
V

CC=VO1

CG= 3 000pF, RG=47Ω

FS

= 1 000pF, RC=1kΩ

C

P

= 24V, IF= 10mA

(Ta=Topr unless otherwise specified)

MIN. TYP. MAX.

VCC-VCC-VCC-

6.5 6.0 5.5
123V

-410

25-µs

--2V

- 0.2 0.4 V

- - 100 µ A(12

-15µs

20 35 - µ s

13

CC

Test circuit

V

µs

(13)

(10)

(11)

(14)

near the device.

14

(9)

)

Precautions for Operation

1. It is recommended that a capacitor of about 1000pF is added between C-terminal and GND in order to prevent
malfunction of C-terminal due to noise. In the case of capacitor added, rise of the detecting voltage is delayed.
Thus, use together a resistance of about 1kΩ set between Vcc and C-terminal.
The C-terminal rise time varies with the time constant of CR added. Make it clear before use.

2.

The light-detecting element used for this product is provided with a parasitic diode between each terminal and GND.
When a terminal happens to reach electric potential lower than GND potential even in a moment, malfunction
or rupture may result. Design the circuit so that each terminal will be kept at electric potential lower than the
GND potential at all times.

Test Circuit Diagram

■

PC928

(1)(

12

↑ I

F

3

(

)(

3

12

↑ I

F

3

(

)(

5

12

↑

I

F

variable

3

SW

= 0mA

12

B

3

(

)

7

A

VCMwaveform

CM

, VO2waveform

H

SW at A, IF= 10mA

, VO2waveform

CM

L

SW at B, I

F

PC928

PC928

PC928

PC928

+-

V

CM

14

14

14

14

∆ V

13
12
11

10

9
8

13
12
11
10
9
8

13
12
11
10
9
8

13
12
11
10

9
8

L

O2

VO1L

V

V

L

V ↑

O2

V

V

O2

V

O2

V

∆ VO2H

I

O1

V

CC1

↑

V

CC2

V

CC

I

O2

V

CC

V

CC

(Peak)

V

CM

GND

H

V

O2

V

L

O2

GND

)

2

12

↑ I

F

3

)

4

)

6

(

)

8

tr= tf= 0.01 µ s
Pulse width : 5 µ s

V

IN

Duty ratio=50%

waveform

V

IN

V

waveform

OUT

12

↑

I

F

3

12

↑

I

F

3

12

3

PC928

PC928

PC928

PC928

t

pLH

13
12
11
10

14

9
8

13
12
11
10

14

9
8

13
12
11
10

14

9
8

13
12
11
10

14

9
8

t

pHL

t

r

↑

I

O2

V

CC

VO2H

V

A

I

O1L

V

OUT

50%

t

f

I

R

A

CC

G

90%
50%

10%

V

CC

V

CC

V

CC

C

G

(

)(

9

12

↑

I

F

3

PC928

13
12
11

V

10

14

9
8

V

R

OUT

V

CC

G

C

G

V

V

CTH

)

10

12

↑

I

F

3

PC928

13
12
11

V

10

14

9
8

V

R

CC

G

R

C

V

OE

C

P

L

G

V

C

Test Circuit Diagram

■

PC928

(11)

↑ I

(13)

tr= tf= 0.01µ s
Pulse width : 25µ s

V

IN

Duty ratio=25%

(12)

13

12

F

3

PC928

12
11
10

14

9
8

V ↓V

FSLIFS

R

V

G

CC

C

G

↑ I

12

F

3

PC928

13
12
11
10

14

9
8

R

V

G

CC

C

G

V

I

FSH

A

FS

(14)

12

PC928 V

14

3

13
12
11
10
9
8

R

G

V

CC

C

V

OUT

C

P

G

R

C

tr= tf= 0.01µ s
Pulse width : 25µ s

V

IN

Duty ratio=25%

12

3

PC928

13
12
11
10

14

9
8

R

C

R

G

V

CC

C

G

R

FS

V

I

F

(Input current)

V

O2

(O2 output voltage)

C

(Detecting terminal)

FS

(Error signal output)

10%

t

pCFHL

t

pCOTF

90%
50%
10%

t

pCOHL

90%

50% 50%

OE

V

Error detecting threshold voltage (V )

∆ t

FS

CTH

PC928

Fig. 1 Forward Current vs. Ambient

Temperature

60

50

40

F

30

20

Forward current I (mA)

10

0

0 25 50 75 80 100 125-25

Ambient temperature Ta(˚C)

Fig. 3 Forward Current vs. Forward Voltage

500

200
100

50

F

20
10

5

Forward current I (mA)

2
1

0 0.5 1.0 1.5 2.0 2.5 3.0 3.5

Ta= 75˚C

50˚C

25˚C
0˚C

- 20˚C

Forward voltage V (V)

F

Fig. 5 "L-H" Relative Threshold Input Current

vs. Ambient Temperature

1.3

FLH

1.2

1.1
I at Ta=25˚C = 1

FLH

1

VCC= 24V

Fig. 2 Power Dissipation vs. Ambient

Temperature

600

Total power dissipation

550

Output side power dissipation

500

400

300

200

100

Power dissipation Ptot, Po (mW)

0

0 25 50 75 80 100 125-25

Ambient temperature Ta(˚C)

Fig. 4 "L-H" Relative Threshold Input

Current vs. Supply Voltage

1.6

FLH

1.4

1.2
Value of V =24V assumes 1.

CC

1

0.8

Ta= 25˚C

Relative threshold input current I

0.6

15 18 21 24 27 30

Supply voltage V (V)

CC

Fig. 6 O1 Low Level Output Voltage vs.

O

Output Current

1

1

(V)

O1L

0.1

0.01

Ta = 25˚C

V

CC1

V

CC2

I

= 10mA

F

= 12V
= 12V

0.9

Relative threshold input current I

0.8

- 25 0 25 50 75 100

Ambient temperature Ta (˚C)

low level output voltage V

1

O

0.001

0.01 0.1 1

O1 output current I

(A)

O

1

PC928

Fig. 7 O1 Low Level Output Voltage vs.

Ambient Temperature

0.25

0.20

O1L

0.15

0.10

0.05

low level output voltage V (V)

1

O

0.00

- 25 0 25 50 75 100

IO1= 0.1A

Ambient temperature Ta (˚C)

Fig. 9 O

High Level Output Voltage vs.

2

Supply Voltage

35

30

O2H

25

20

15

V

= 12V

CC1

V

= - 12V

CC2

IF= 10mA

Ta= 25˚C

= 10mA

I

F

I

= - 0.1A

O2

Fig. 8 O1 Leak Current vs. Ambient

Temperature

-6

10

-7

10

O1L

-8

10

leak current I (A)

1

O

-9

10

0 255075100-25

Ambient temperature Ta (˚C)

Fig. 10 O2 High Level Output Voltage vs.

Ambient Temperature

O2H

24

23

IO2=0A

22

- 0.1A

21

VCC= 24V
I

= 10mA

F

high level output voltage V (V)

10

2

O

5

15 18 21 24 27 30

Supply voltage V (V)

CC

Fig. 11 O2 Low Level Output Voltage vs.

Output Current

10

(V)

O2L

1

0.1

low level output voltage V

2

O

0.01

0.01 0.1 1

Output current IO2 (A)

V

= 24V

CC

Ta= 25˚C

20

high level output voltage V (V)

2

O

19

- 25 0 25 50 75 100

Ambient temperature Ta (˚C)

Fig. 12 O2 Low Level Output Voltage vs.

Ambient Temperature

1.3

(V)

1.2

O2L

1.1

1

0.9

low level output voltage V

2

O

0.8

- 25 0 25 50 75 100

I

O2

= 0.1A

Ambient temperature Ta (˚C)

V

CC

I

= 10mA

F

= 24V

PC928

Fig. 13 High Level Supply Current vs.

Supply Voltage

14

IF= 10mA

Ta= - 25˚C Ta= - 25˚C

12

CCH

10

8

25˚C

80˚C

6

High level supply current I (mA)

4

15 18 21 24 27 30

Supply voltage V (V)

CC

Fig. 15 Propagation Delay Time vs.

Forward Current

3.5

3

(µ s)

2.5

PLH

, t

PHL

t

PLH

2

1.5

1

0.5
t

Propagation delay time t

PHL

0

0 5 10 15 20 25

Forward current IF (mA) Ambient temperature Ta (˚C)

Ta= 25˚C

= 24V

V

CC

R

=47Ω

G

CG= 3 000pF

Fig. 14 Low Level Supply Current vs.

Supply Voltage

16

IF= 0mA

14

CCL

12

10

25˚C

80˚C

8

Low level supply current I (mA)

6

15 18 21 24 27 30

Supply voltage V (V)

CC

Fig. 16 Propagation Delay Time vs.

Ambient Temperature

2.5

2

(µ s)

PLH

, t

PHL

1.5

t

1

0.5

Propagation delay time t

0

- 25 0 25 50 75 100

PLH

t

PHL

= 24V

V

CC

RG=47Ω
CG= 3 000pF
I

= 10mA

F

Fig. 17 Overcurrent Detecting Voltage vs.

Ambient Temperature

30

(V)

25

CTH

20

15

10

5

Overcurrent detecting voltage V

0

- 25 0 25 50 75 100

Ambient temperature Ta (˚C)

VCC= 24V

=47Ω

R

G

CG= 3 000pF
I

= 10mA

F

Fig. 18

O2 Output Fall Time at Protection from Overcurrent/O

"H-L"

2

Delay Time at Protection from Overcurrent vs. Ambient temperature

10

VCC= 24V
I

= 10mA

F

R

=47Ω

G

C

= 3 000pF

G

8

R

=1kΩ

C

C

= 1 000pF

P

6

4

2

output fall time at protection from overcurrent tpcotf/

"H-L" delay time at protection from overcurrent tpcoHL ( µ s)

2

2

0

O

O

- 25 0 25 50 75 100

Ambient temperature Ta (˚C)

t

t

pcoHL

pcotf

PC928

Fig. 19 Error Signal "H-L" Delay Time vs.

Ambient Temperature

(µ s)

pcfHL

1.5

1.2

0.9

VCC= 24V
I

= 10mA

F

R

= 1.8kΩ

FS

R

=47Ω

G

CG= 3 000pF
R

=1kΩ

C

C

= 1 000pF

P

0.6

0.3

Error signal "H-L" delay time t

0

- 25 0 25 50 75 100

Ambient temperature Ta (˚C)

Fig. 21 Low Level Error Signal Voltage vs.

Ambient Temperature

0.5
= 24V

V

CC

I

= 10mA

F

IFS= 10mA

(V)

0.4

R

=47Ω

G

FSL

C

= 3 000pF

G

C= OPEN

0.3

0.2

0.1

Low level error signal voltage V

0

- 25 0 25 50 75 100

Ambient temperature Ta (˚C)

Fig. 20 O2 Output Voltage at Protection from

Overcurrent vs. Ambient Temperature

2

(V)

OE

1.6

1.2

V

CC

I

= 10mA

F

=47Ω

R

G

C

= 3 000pF

G

R

=1kΩ

C

C

= 1 000pF

P

= 24V

0.8

0.4

output voltage at protection from overcurrent V

2

0

O

- 25 0 25 50 75 100

Ambient temperature Ta (˚C)

Fig. 22 High Level Error Signal Current vs.

Ambient Temperature

-6

10

VCC= 24V
I

= 10mA

F

VFS= 24V

(A)

R

=47Ω

G

FSH

C

= 3 000pF

G

V

=0V

C

-7

10

-8

10

High level error signal current I

-9

10

- 25 0 25 50 75 100

Ambient temperature Ta (˚C)

Fig. 23 Error Signal Output Pulse Width vs.

Ambient Temperature

50

VCC= 24V
I

= 10mA

F

R

= 1.8kΩ

FS

(µ s)

40

FS

R

=47Ω

G

= 3 000pF

C

G

=1kΩ

R

C

= 1 000pF

C

P

30

20

10

Error signal output pulse width∆ t

0

- 25 0 25 50 75 100

Ambient temperature Ta (˚C)

PC928

Fig. 24 Overcurrent Detecting Voltage

vs. Supply Voltage

25

Ta= 25˚C
I

= 10mA

F

V

= 24V

(V)

CTH

CC

20

R

G

CG= 3 000pF
R

C

FS= OPEN

15

C

P

10

=47Ω
=1kΩ

= 1 000pF

Added resistance=0 Ω

0.5kΩ

1kΩ

5

Overcurrent detecting voltage V

0

15 18 21 24 27 30

1.5kΩ

Supply voltage Vcc (V)

Application Circuit (IGBT Drive for Inverter)

Anode
Anode

Cathode

TTL, microcomputer, etc.

Feedback to primary side

V

CC

O

1

O

2

PC928

C
FS

GND

+

R

G

R

C

+

Overcurrent Detecting Voltage ­Supply Voltage Characteristics Test Circuit

Anode

I

F

Cathode

V

= 12V

CC1

IGBT

U

CP

V

= 12V

CC2

V

CC

O

O

PC928

C

FS

GND

V

Added resistance

C

G

CC

V

C

V

(+)

W

1

R

2

G

R

V

C

V

O2

C

P

V

Power supply

(-)

■

Operations of Shortcircuit Protector Circuit

Anode
Anode

TTL, microcomputer, etc.

1. Detection of increase in V

Cathode

CE(sat)

Light emitting diode

1
2

Constant voltage circuit

3

Photodiode

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

PC928

Amp.

Interface

IGBT protector circuit

GND

14

V

CC

13

O

1

12

O

2

11

R

G

C

9

FS

8

GND

10

Feedback to primary side

9

V

CC

IGBT

R

C

C

P

V

EE

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

3. Simultaneous issue of signals to indicate the shortcircuit condition (FS signal) from FS terminal to the microcomputer

4. Judgement 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.