H21L1 ETC

Document overview

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Technical content

Unit 25B, Park View Road West, Park View Industrial Estate, Brenda Road Hartlepool, Cleveland, TS25 1YD Tel: (01429) 863609 Fax :(01429) 863581 ISOCOM INC 720 E., Park Boulevard, Suite 104, Plano, TX 75074 USA Tel: (972) 423-5521 Fax: (972) 422-4549 3/10/97 DB91085-AAS/A2 ISO - LOGIC INVERTER SCHMITT TRIGGER INTERRUPTER SWITCH H21L1, H21L2 H22L1, H22L2 OPTICAL CENTRE LINE 12.7 E 3.0 9.0 8.0 11.1 10.5 0.45 0.40 7.62 6.6 3.3 3.0 2.8 2.54 Dimensions in mm 3 1 pin 5 G ND pin 3 VCC pin 4 VO OPTICAL CENTRE LINE 12.7 E 3.0 9.0 8.0 11.1 10.5 0.45 0.40 7.62 6.6 3.3 3.0 2.8 2.54 pin 3 VCC pin 4 VO 25.7 24.1 19.05 pin 5 GND H22L1 H22L2 H21L1 H21L2 Voltage Regulator

4 Out

3 VCC

5 GND

DESCRIPTION

The H21L_ and H22L_ series of transmissive photointerrupters are single channel switches consisting of a Gallium Arsenide infrared emitting diode coupled to a high speed integrated circuit detector. The output incorporates a Schmitt trigger which provides hysteresis for noise immunity and pulse shaping. The gap in the plastic housing provides a means of interrupting the signal with an opaque material, switching the output from an 'ON' into an 'OFF' state.

FEATURES

l Built in Schmitt trigger circuit l Open collector output l High sensitivity l 3mm gap between LED and detector l 1mm aperture over LED and detector

APPLICATIONS

l Floppy disk drives, Copiers, Printers, Facsimilies, VCR's, Cassette tape Recorders, Automatic vending machines

PARAMETER MIN TYP MAX UNITS TEST CONDITION Input Forward Voltage (VF) 1.1 1.6 V I F = 20mA Reverse Voltage (VR)6 V I R = 10µA Reverse Current (IR )1 0 µAV R = 3V Detector Operating Voltage Range VCC 41 5 V Low Level Supply Current ICCL 1.6 5 mA V CC = 5V , IF = 20mA High Level Supply Current ICCH 1.0 5 mA V CC = 5V , IF = 0mA Low Level Output V oltage VOL 0.4 V V CC = 5V , IF = 30mA R L= 270Ω High Level Output Current IOH 100 µAV CC = 15V , IF = 0mA V O = 15V Turn-on Threshold Current IF ( ON ) H21L1, H22L1 30 mA V CC = 5V , RL= 270Ω H21L2, H22L2 15 mA V CC = 5V , RL= 270Ω Turn-off Threshold Current IF ( OFF ) H21L1, H22L1 0.5 mA V CC = 5V , RL= 270Ω H21L2, H22L2 0.5 mA V CC = 5V , RL= 270Ω Hysteresis Ratio IF ( OFF ) / IF ( ON ) 0.5 0.9 V CC = 5V , RL= 270Ω Rise Time tr 0.1 µsV CC = 5V IF = 20mA Fall Time tf 0.05 µsR L= 270Ω Note 1 Special Selections are available on request. Please consult the factory. 3/10/97 ELECTRICAL CHARACTERISTICS ( T A = 25°C Unless otherwise noted ) ABSOLUTE MAXIMUM RATINGS (25 °C unless otherwise specified) Storage Temperature -40°C to +85°C Operating Temperature -25°C to +85°C Lead Soldering Temperature 260°C (5 secs maximum) INFRARED EMITTING DIODE Power Dissipation 75 mW Forward Current ( Continuous ) 50 mA Forward Current ( Peak ) 1 A (Pulse Width ≤ 100µs, Duty Ratio = 0.01) Reverse Voltage 6V PHOTO DETECTOR Power Dissipation 250 mW Output Current 50mA Allowed Range V 35 0 to 35V Allowed Range V45 0 to 40V

-25 0 25 50 75 100 125 Ambient temperature TA ( °C ) 300 Collector power dissipation PC (mW) Collector Power Dissipation vs. Ambient Temperature 1.0 2.0 3.0 V CC = 5V Ambient temperature TA ( °C ) -25 0 25 50 75 100-25 0 25 50 75 100 Ambient temperature TA ( °C ) Low level output voltage VOL ( V ) Low Level Output Voltage vs. Ambient Temperature 0.1 0.2 0.3 0.4 0.5 0.6 0.7 Low level output voltage VOL ( V ) Low Level Output Voltage vs. Low Level Output Current Low level output current IOL ( mA ) 0.1 0.01 0.02 0.2 0.5 Supply Current vs. Ambient Temperature Supply current ICC (mA) V CC = 5V IF = 30mA TA = 25°C 0.1 0.2 0.5 1 2 5 10 0.1 0.2 0.3 0.4 Rise time, fall time tr, tf (µs) Rise Time, Fall Time vs. Load Resistance Load resistance RL ( kΩ) 0.5 Ambient temperature TA ( °C ) -25 0 25 50 75 100 125 Forward Current vs. Ambient Temperature Forward current IF (mA) 100 150 200 250 1 10 50 100 0.05 V CC = 5V IF = 30mA TA = 25°C 0.6 ICCH ICCL V CC = 5V IF = 30mA IOL = 30mA 5mA 16mA tf tr