Datasheet H21LTB, H21LOI, H21LOB, H21LTI Datasheet (Fairchild Semiconductor)

+

E+

D

2

0.129 (3.3)

0.119 (3.0)

0.433 (11.0)

0.422 (10.7)

0.315 (8.0)

0.295 (7.5)

0.272 (6.9)

0.055 (1.40)

0.045 (1.14)

0.110 (2.8)

0.091 (2.3)

0.055 (1.40)

0.045 (1.14)

1

3

5

4

0.020 (0.51) (SQ)

0.472 (12.0)

0.457 (11.6)

0.249 (6.35)

0.243 (6.15)

0.39 (1.00)

0.34 (0.85)

0.103 (2.60) NOM

0.125 (3.2)

0.119 (3.0)

Ø 0.133 (3.4) Ø 0.126 (3.2)

(2X)

0.755 (19.2)

0.745 (18.9)

L

C

L

C

Optical

C

L

PIN 2 CATHODE

PIN 5 GND

PIN 4 V

PIN 3 V

CC

O

PIN 1 ANODE

PACKAGE DIMENSIONS

DESCRIPTION

The H21L series are slotted optical switches designed for multipurpose non contact sensing. They consist of a GaAs LED and a

silicon OPTOLOGIC®. sensor packaged in an injection molded housing and facing each other across a .124” (3.15 mm) gap. The

output is either inverting or non-inverting, with a choice of totem-pole or open-collector configuration for TTL/CMOS compatibility

H21LTB H21LTI H21LOB H21LOI

NOTES:

1. Dimensions for all drawings are in inches (mm).

2. Tolerance of ± .010 (.25) on all non-nominal dimensions unless otherwise specified.

OPTOLOGIC®OPTICAL

INTERRUPTER SWITCH

FEATURES

• Low cost • Choice of inverter or buffer output functions

• 0.035” apertures • Choice of open-collector or totem-pole output configuration

• Black plastic opaque housing • TTL/CMOS compatible output functions

• Mounting tabs on housing

H21LTB Totem-pole, buffer output

H21LTI Totem-pole, inverter output

H21LOB Open-collector, buffer output

H21LOI Open-collector, inverter output

PART NUMBER DEFINITIONS

Part

LED Output

Number

H21LTB On High

H21LTB Off Low

H21LTI On Low

H21LTI Off High

H21LOB On High

H21LOB Off Low

H21LOI On Low

H21LOI Off High

INPUT/OUTPUT TABLE



2001 Fairchild Semiconductor Corporation

DS300294 5/29/01 1 OF 8 www.fairchildsemi.com

www.fairchildsemi.com 2 OF 8 5/29/01 DS300294

H21LTB H21LTI H21LOB H21LOI

OPTOLOGIC®OPTICAL

INTERRUPTER SWITCH

SCHEMATICS

ANODE (1)

CATHODE (2)

ANODE (1)

CATHODE (2)

VOLTAGE

REGULATOR

LA

VOLTAGE

REGULATOR

LA

(3)

V

CC

(4)

V

OUT

GND (5)

(3)

V

CC

(4)

V

OUT

GND (5)

H21LTB

Totem-Pole Output Buffer

H21LTI

Totem-Pole Output inverter

(3)

V

ANODE (1)

CATHODE (2)

ANODE (1)

CATHODE (2)

VOLTAGE

REGULATOR

LA

VOLTAGE

REGULATOR

LA

CC

(4)

V

OUT

GND (5)

(3)

V

CC

(4)

V

OUT

GND (5)

H21LOB

Open-Collector Output Buffer

H21LOI

Open-Collector Output Inverter

DS300294 5/29/01 3 OF 8 www.fairchildsemi.com

H21LTB H21LTI H21LOB H21LOI

OPTOLOGIC®OPTICAL

INTERRUPTER SWITCH

Parameter Symbol Rating Units

Operating Temperature T

OPR

-40 to +85

°C

Storage Temperature T

STG

-40 to +85

°C

Soldering Temperature (Iron)

(3,4,5,6)

T

SOL-I

240 for 5 sec

°C

Soldering Temperature (Flow)

(3,4,6)

T

SOL-F

260 for 10 sec

°C

INPUT (EMITTER)

Continuous Forward Current I

F

50 mA

Reverse Voltage V

R

6V

Power Dissipation

(1)

P

D

100 mW

OUTPUT (SENSOR)

Output Current I

O

50 mA

Supply Voltage V

CC

4.0 to 16 V

Output Voltage V

O

30 V

Power Dissipation

(2)

P

D

150 mW

ABSOLUTE MAXIMUM RATINGS

(TA= 25°C unless otherwise specified)

NOTES (Applies to Max Ratings and Characteristics Tables.)

1. Derate power dissipation linearly 1.67 mW/°C above 25°C.

2. Derate power dissipation linearly 2.50 mW/°C above 25°C.

3. RMA flux is recommended.

4. Methanol or isopropyl alcohols are recommended as cleaning agents.

5. Soldering iron

1/16” (1.6mm) from housing.

6. As long as leads are not under any stress or spring tension.

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H21LTB H21LTI H21LOB H21LOI

OPTOLOGIC®OPTICAL

INTERRUPTER SWITCH

PARAMETER TEST CONDITIONS SYMBOL MIN. TYP. MAX. UNITS

INPUT (EMITTER)

Forward Voltage I

F

= 20 mA V

F

— 1.5 V

Reverse Leakage Current VR= 5 V I

R

—10µA

OUTPUT (SENSOR)

Supply Current V

CC

= 5 V I

CC

—5mA

COUPLED

Low Level Output Voltage I

F

= 0 mA, V

CC

= 5 V, RL= 100 1 V

OL

— 0.4 V

H21LTB, H21LOB

Low Level Output Voltage IF= 15 mA, V

CC

= 5 V, RL= 360 1 V

OL

— 0.4 V

H21LTI, H21LOI

High Level Output Voltage IF= 15 mA, V

CC

= 5 V, IOH= -800 µA V

OH

2.4 — V

H21LTB

High Level Output Voltage IF= 0 mA, V

CC

= 5 V, IOH= -800 µA V

OH

2.4 — V

H21LTI

High Level Output Current IF= 0 mA, V

CC

= 5 V, IOH= -800 µA I

OH

100 µA

H21LOB

High Level Output Current IF= 0 mA, V

CC

= 5 V, VOH= 30 V I

OH

— 100 µA

H21LOI

Turn on Threshold Current V

CC

= 5 V, RL= 360 1 IF(+) — 15 mA

Turn off Threshold Current V

CC

= 5 V, RL= 360 1 IF(-) 0.50 — mA

Hysteresis Ratio IF(+) / IF(-) 1.2

Propagation Delay V

CC

= 5 V, RL= 360 1(See Fig, 9) t

PLH, tPHL

5µs

Output Rise and Fall Time V

CC

= 5 V, RL= 360 1(See Fig, 9) t

r, tf

70 ns

ELECTRICAL / OPTICAL CHARACTERISTICS

(TA =25°C)

DS300294 5/29/01 5 OF 8 www.fairchildsemi.com

H21LTB H21LTI H21LOB H21LOI

OPTOLOGIC®OPTICAL

INTERRUPTER SWITCH

Fig. 1 Output Voltage vs. Input Current (Inverters)

6

VOH

5

4

3

I

F (OFF)

2

- Output Voltage (V)

O

V

1

0

012345

I

F (ON)

V

OL

VCC = 5 V

= 270 1

R

L

= 25˚C

T

A

IF - Input Current (mA) IF - Input Current (mA)

Fig. 3 Normalized Threshold Current vs. Shield Distance

Fig. 2 Output Voltage vs. Input Current (Buffers)

6

VCC = 5 V

= 270 1

R

L

5

= 25˚C

T

A

4

3

I

F (OFF)

2

- Output Voltage (V)

O

V

1

VOL

0

012345

I

F (ON)

V

OH

Fig. 4 Normalized Threshold Current vs. Supply Voltage

10

Black Shield

+

d

D

E

+

0

1

- Normalized Threshold Current

F(ON)

I

012345678

Black Shield

d 0

Normalized to:

= 5 V

V

CC

= 20 mA Pulsed

I

F

Pulse Width = 100 µs Duty Cycle = 0.1%

d - Distance (mm)

1.6 Normalized to:

Turn ON Threshold

1.4

1.2

1.0

0.8

0.6

0.4

- Normalized Threshold Current

F

I

0.2

0.0

= 5 V

V

CC

= 25˚C

T

A

I

F (ON)

I

F (OFF)

0246810121416

VCC - Supply Voltage (V)

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H21LTB H21LTI H21LOB H21LOI

OPTOLOGIC®OPTICAL

INTERRUPTER SWITCH

1.8

1.6

1.4

1.2

1.0

0.8

0.6

0.4

- Normalized Threshold Current

F

I

0.2

0.0

I

F (ON)

I

F (OFF)

-40 -20 0 20 40 60 80 100

Fig. 7 Low Output Voltage vs. Output Current

Fig. 5 Normalized Threshold Current

vs. Ambient Temperature

Normalized to: VCC = 5 V T

= 25˚C

A

I

F (OFF)

I

F (ON)

TA - Ambient Temperature (˚C)

Fig. 6 Forward Current vs. Forward Voltage

100

= 25˚C

T

A

80

60

40

- Forward Current (mA)

F

I

20

0

1.0 1.1 1.2 1.3 1.4 1.5 1.6

VF - Forward Voltage (V)

Fig. 8 Response Time vs. Forward Current

1

VCC = 5 V

= 25˚C

T

A

= 10 mA

I

F

0.1

- Output Voltage, Low (V)

OL

V

0.01 110

IO - Output Current (mA)

5

VCC = 5 V

= 270 1

R

L

= 25˚C

T

A

4

Pulsed

I

F

T = 10 ms Duty Cycle = 50%

3

2

Response Delay Time (us)

1

0

0 5 10 15 20

T

PLH

T

PHL

IF - Forward Current (mA)

DS300294 5/29/01 7 OF 8 www.fairchildsemi.com

H21LTB H21LTI H21LOB H21LOI

OPTOLOGIC®OPTICAL

INTERRUPTER SWITCH

C

2

R

2

R

1

C

.1 uf bypass

5V

GND

Pulse Generator V = 5V f = 10 KHz d.c. = 50%

O

1

R = 360

1 1

R = 180

2

1

C = 15 pf C = 20 pf

2

stray wire capacitance

C and C include probe and

12

Fig. 9 Switching Speed Test Circuit

PLH

r

t

PHL

t

50%

90% 10%

OH

V

OL

V

10% 90%

50%

Output V

O

t

f

t

0 mA

OH

PHL

0 mA

t

V

PLH

50%

t

10% 90%

90% 10%

r

t

f

t

Output

O

V

OL

V

+

-

V

IN

R

IN

.1 uf bypass

L

R

V

CC

GND

O

V

Fig. 10 Typical Operating Circuit

Fig. 11 Switching Times Definition for Buffers Fig. 12 Switching Times Definition for Inverters

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H21LTB H21LTI H21LOB H21LOI

OPTOLOGIC®OPTICAL

INTERRUPTER SWITCH

DISCLAIMER

FAIRCHILD SEMICONDUCTOR RESERVES THE RIGHT TO MAKE CHANGES WITHOUT FURTHER NOTICE TO ANY PRODUCTS HEREIN TO IMPROVE RELIABILITY, FUNCTION OR DESIGN. FAIRCHILD DOES NOT ASSUME ANY LIABILITY ARISING OUT OF THE APPLICATION OR USE OF ANY PRODUCT OR CIRCUIT DESCRIBED HEREIN; NEITHER DOES IT CONVEY ANY LICENSE UNDER ITS PATENT RIGHTS, NOR THE RIGHTS OF OTHERS.

LIFE SUPPORT POLICY

FAIRCHILD’S PRODUCTS ARE NOT AUTHORIZED FOR USE AS CRITICAL COMPONENTS IN LIFE SUPPORT DEVICES OR SYSTEMS WITHOUT THE EXPRESS WRITTEN APPROVAL OF THE PRESIDENT OF FAIRCHILD SEMICONDUCTOR CORPORATION. As used herein:

1. Life support devices or systems are devices or systems which, (a) are intended for surgical implant into the body,or (b) support or sustain life, and (c) whose failure to perform when properly used in accordance with instructions for use provided in labeling, can be reasonably expected to result in a significant injury of the user.

2. A critical component in any component of a life support device or system whose failure to perform can be reasonably expected to cause the failure of the life support device or system, or to affect its safety or effectiveness.