Fairchild Semiconductor HCPL-3700 Datasheet

C

R

C

00

G

1

G

2

DESCRIPTION

The HCPL-3700 voltage/current threshold detection optocoupler consists of an
AlGaAs LED connected to a threshold sensing input buffer IC which are optically
coupled to a high gain darlington output. The input buffer chip is capable of con­trolling threshold levels over a wide range of input voltages with a single resistor.
The output is TTL and CMOS compatible.

FEATURES

•AC or DC input

• Programmable sense voltage

• Logic level compatibility

• Threshold guaranteed over temperature
(0°C to 70°C)

• Optoplanar™ construction for high
common mode immunity

• UL recognized (file # E90700)

APPLICATIONS

•Low voltage detection

•5 V to 240 V AC/DC voltage sensing

• Relay contact monitor

• Current sensing

• Microprocessor Interface

• Industrial controls

A 0.1 µF bypass capacitor
must be connected between
pins 8 and 5.

AC/D

POWE

TRUTH TABLE
(Positive Logic)

Input Output

HL

LH

HCPL-37

AC/DC TO LOGIC INTERFACE

OPTOCOUPLER

HCPL-3700

8

1

LOGI

8

AC

DC+

DC-

1

1

2

3

8

1

8

V

CC

7

NC

6

V

O

45

AC GND

ND

ABSOLUTE MAXIMUM RATINGS

(No derating required up to 70°C)

ND

Parameter Symbol Value Units

Storage Temperature T

Operating Temperature T

Lead Solder Temperature T

EMITTER

Average

STG

OPR

SOL

I

IN

-55 to +125 °C

-40 to +85 °C

260 for 10 sec °C

50 (MAX)

mAInput Current Surge 3 ms, 120 Hz Pulse Rate 140 (MAX)

Tr ansient 10 µs, 120 Hz Pulse Rate 500 (MAX)

Input Voltage (Pins 2-3) V

Input Power Dissipation (Note 1) P

Total Package Power Dissipation (Note 2) P

IN

IN

T

-0.5 (MIN) V

230 (MAX) mW

305 (MAX) mW

DETECTOR

Output Current (Average) (Note 3) I

Supply Voltage (Pins 8-5) V

Output Voltage (Pins 6-5) V

Output Power Dissipation (Note 4) P

O

CC

O

O

30 (MAX) mA

-0.5 to 20 V

-0.5 to 20 V

210 (MAX) mW

© 2003 Fairchild Semiconductor Corporation

Page 1 of 10

4/9/03

≥

≥

≥

≥

≤

AC/DC TO LOGIC INTERFACE

OPTOCOUPLER

HCPL-3700

ELECTRICAL CHARACTERISTICS

(T

= 0°C to 70°C Unless otherwise specified)

A

Parameter Test Conditions Symbol Min Typ Max Unit

Input Threshold Current

Input
Threshold
Voltage

Hysteresis

DC

(Pins 2,3)

AC

(Pins 1,4)

= 0.4 V, I

(V

O

(V

(V

IN

IN

IN

TH+

4.2 mA) (Note 5) I

O

= V

- V

, Pins 1 & 4 Open)

2

3

(V

= 4.5 V, V

CC

(Note 5) (I

= V

- V

, Pins 1 & 4 Open)

2

3

(V

= 4.5 V, V

CC

(Note 5) (I

(Pins 2 & 3 Open)

(V

= 4.5 V, V

CC

(Note 5) (I

(Pins 2 & 3 Open)

(V

= 4.5 V, V

CC

(Note 5) (I

(I

HYS

(V

HYS

(V

= V

IHC1

(I

- V

2

= 10 mA, Pins 1 & 4

IN

= 4.5 V) I

CC

= 0.4 V)

O

4.2 mA)

O

= 2.4 V)

O

100 µA)

O

|V

= V

IN

= 0.4 V)

O

4.2 mA)

O

|V

= |V

IN

= 2.4 V)

O

100 µA)

O

= I

TH+

= V

TH+

, V

= GND)

3

3

1

1

- I

- V

- V

- V

|

4

|

4

)I

TH-

)V

TH-

V

V

V

V

V

TH+

TH-

TH+

TH-

TH+

TH-

HYS

HYS

IHC1

1.96 2.4 3.11 mA

1.00 1.2 1.62 mA

3.35 3.8 4.05 V

2.01 2.5 2.86 V

4.23 5.0 5.50 V

2.87 3.7 4.20 V

1.2 mA

1.3 V

5.4 6.3 6.6 V

(V

= V

, V

Connected to Pin 3)

(V

= |V

- V

|)

1

4

= GND)

= GND)

= 5.0 V)

= 3 mA) V

= 3 mA) V

(Note 5)

= 18 V) I

= Open)

= 5 V)

= Open) I

= 0V)

IN

V

V

V

I

IHC2

IHC3

ILC

I

IN

D1,2

D3,4

V

OL

OH

CCL

CCH

C

6.1 7.0 7.3 V

12.5 13.4 V

-0.75 V

3.0 3.7 4.4 mA

0.65 V

0.65 V

0.04 0.4 V

100 µA

1.0 4 mA

0.01 4 µA

IN

50 pF

Input Clamp Voltage

(V

= V

IHC3

(I

= 15 mA; Pins 1 & 4 Open)

IN

(V

= V

ILC

(V

Input Current

IN

Bridge Diode
Forward Voltage

= 4.5 V; I

(V

Logic Low Output Voltage

CC

Logic High Output Current (Note 5) (V

(V

- V

= 5.0 V; V

2

Logic Low Supply Current

Logic High Supply Current (V

Input Capacitance

(Pins 2 & 3, Pins 1 & 4 Open)

3

= 18 V; V

CC

(f = 1 MHz; V

IHC2

(|I

| = 10 mA)

IN

(Pins 2 & 3 Open)

- V

, V

2

3

3

- V

, V

2

3

3

(I

= -10 mA)

IN

= V

- V

2

3

(Pins 1 & 4 Open)

(I

IN

(I

IN

= 4.2 mA)

OL

= V

OH

CC

O

(V

CC

O

© 2003 Fairchild Semiconductor Corporation

Page 2 of 10

4/9/03

AC/DC TO LOGIC INTERFACE

OPTOCOUPLER

HCPL-3700

RECOMMENDED OPERATING CONDITIONS

Parameter Symbol Min Max Units

Supply Voltage V

Operating Temperature T

Operating Frequency f 0 4 kHz

CC

A

218V

070°C

SWITCHING CHARACTERISTICS (T

AC Characteristics Test Conditions Symbol Min Typ Max Unit

Propagation Delay Time
(to Output Low Level)

Propagation Delay Time
(to Output High Level)

Output Rise Time (10-90%) (R

Output Fall Time (90-10%) (R

Common Mode Transient Immunity
(at Output High Level)

Common Mode Transient Immunity
(at Output Low Level)

PACKAGE CHARACTERISTICS (T

Characteristics Test Conditions Symbol Min Typ Max Unit

Withstand Insulation Voltage

Resistance (input to output) (Note 9) (VIO = 500 Vdc) R

Capacitance (input to output) (f = 1 MHz, V

= 25°C, VCC = 5 V Unless otherwise specified)

A

= 4.7 kΩ, CL = 30 pF)

(R

L

= 4.7 kΩ, CL = 30 pF)

(R

L

= 4.7 kΩ, CL = 30 pF) t

L

= 4.7 kΩ, CL = 30 pF) t

L

= 0 mA, RL = 4.7 kΩ)

(I

IN

(V

= 2.0 V, VCM = 1400 V)

O min

= 3.11 mA,RL = 4.7 kΩ)

(I

N

(V

A

= 0.8 V, VCM = 140 V)

O max

= 0°C to 70°C Unless otherwise specified)

(Relative humidity < 50%)

(T

= 25°C, t = 1 min)

A

(Note 6)

(Note 6)

(Notes 7,8)

(Notes 7,8)

(Notes 9,10)

= 0 Vdc) C

IO

T

PHL

T

PLH

r

f

|CMH| 4000 V/µs

|CML| 600 V/µs

V

ISO

I-O

I-O

6.0 15 µs

25.0 40 µs

45 µs

0.5 µs

2500 V

12

10

0.6 pF

RMS

Ω

© 2003 Fairchild Semiconductor Corporation

Page 3 of 10

4/9/03