OPTOLOGIC® OPTICAL INTERRUPTER SWITCH H21LTB H21LTI H21LOB H21LOI PACKAGE DIMENSIONS 0.472 (12.0) 0.457 (11.6) CL 0.249 (6.35) 0.243 (6.15) + D E + Ø 0.133 (3.4) Ø 0.126 (3.2) (2X) CL 0.39 (1.00) 0.34 (0.85) 0.755 (19.2) 0.745 (18.9) PART NUMBER DEFINITIONS 0.129 (3.3) 0.119 (3.0) 0.103 (2.60) NOM Optical CL 0.433 (11.0) 0.422 (10.7) 0.125 (3.2) 0.119 (3.0) H21LTB Totem-pole, buffer output H21LTI Totem-pole, inverter output H21LOB Open-collector, buffer output H21LOI Open-collector, inverter output 0.315 (8.0) INPUT/OUTPUT TABLE CL 0.055 (1.40) 0.045 (1.14) 0.295 (7.5) 0.272 (6.9) 0.055 (1.40) 0.045 (1.14) Part LED Output H21LTB On High PIN 2 CATHODE H21LTB Off Low PIN 3 V CC H21LTI On Low H21LTI Off High H21LOB On High H21LOB Off Low H21LOI On Low H21LOI Off High 0.110 (2.8) 0.091 (2.3) PIN 1 ANODE 2 3 1 5 4 PIN 4 V O 0.020 (0.51) (SQ) PIN 5 GND NOTES: 1. Dimensions for all drawings are in inches (mm). 2. Tolerance of ± .010 (.25) on all non-nominal dimensions unless otherwise specified. Number 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 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 2001 Fairchild Semiconductor Corporation DS300294 5/29/01 1 OF 8 www.fairchildsemi.com OPTOLOGIC® OPTICAL INTERRUPTER SWITCH H21LTB H21LTI H21LOB H21LOI SCHEMATICS ANODE (1) VOLTAGE REGULATOR VCC (3) H21LTB LA VOUT (4) CATHODE (2) ANODE (1) Totem-Pole Output Buffer GND (5) VOLTAGE REGULATOR VCC (3) H21LTI LA VOUT (4) CATHODE (2) ANODE (1) GND (5) VCC (3) VOLTAGE REGULATOR VOUT (4) LA GND (5) VCC (3) VOLTAGE REGULATOR VOUT (4) LA H21LOI Open-Collector Output Inverter CATHODE (2) www.fairchildsemi.com H21LOB Open-Collector Output Buffer CATHODE (2) ANODE (1) Totem-Pole Output inverter GND (5) 2 OF 8 5/29/01 DS300294 OPTOLOGIC® OPTICAL INTERRUPTER SWITCH H21LTB H21LTI ABSOLUTE MAXIMUM RATINGS H21LOB H21LOI (TA = 25°C unless otherwise specified) Parameter Symbol Rating Operating Temperature TOPR -40 to +85 Units °C Storage Temperature TSTG -40 to +85 °C (Iron)(3,4,5,6) TSOL-I 240 for 5 sec °C Soldering Temperature (Flow)(3,4,6) TSOL-F 260 for 10 sec °C IF 50 mA Soldering Temperature INPUT (EMITTER) Continuous Forward Current Reverse Voltage VR 6 V Power Dissipation(1) PD 100 mW Output Current IO 50 mA Supply Voltage VCC 4.0 to 16 V Output Voltage VO 30 V PD 150 mW OUTPUT (SENSOR) Power Dissipation(2) 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. DS300294 5/29/01 3 OF 8 www.fairchildsemi.com OPTOLOGIC® OPTICAL INTERRUPTER SWITCH H21LTB H21LTI H21LOB ELECTRICAL / OPTICAL CHARACTERISTICS PARAMETER TEST CONDITIONS INPUT (EMITTER) Forward Voltage Reverse Leakage Current H21LOI (TA =25°C) SYMBOL MIN. TYP. MAX. UNITS IF = 20 mA VF — 1.5 V VR = 5 V IR — 10 µA OUTPUT (SENSOR) Supply Current VCC = 5 V ICC — 5 mA COUPLED Low Level Output Voltage IF = 0 mA, VCC = 5 V, RL = 100 1 VOL — 0.4 V IF = 15 mA, VCC = 5 V, RL = 360 1 VOL — 0.4 V IF = 15 mA, VCC = 5 V, IOH = -800 µA VOH 2.4 — V IF = 0 mA, VCC = 5 V, IOH = -800 µA VOH 2.4 — V IF = 0 mA, VCC = 5 V, IOH = -800 µA IOH 100 µA IF = 0 mA, VCC = 5 V, VOH = 30 V IOH — 100 µA IF(+) — 15 mA IF(-) 0.50 — mA H21LTB, H21LOB Low Level Output Voltage H21LTI, H21LOI High Level Output Voltage H21LTB High Level Output Voltage H21LTI High Level Output Current H21LOB High Level Output Current H21LOI Turn on Threshold Current VCC = 5 V, RL = 360 1 Turn off Threshold Current VCC = 5 V, RL = 360 1 Hysteresis Ratio IF(+) / IF(-) 1.2 Propagation Delay VCC = 5 V, RL = 360 1(See Fig, 9) tPLH, tPHL 5 µs Output Rise and Fall Time VCC = 5 V, RL = 360 1(See Fig, 9) tr, tf 70 ns www.fairchildsemi.com 4 OF 8 5/29/01 DS300294 OPTOLOGIC® OPTICAL INTERRUPTER SWITCH H21LTB H21LTI H21LOB Fig. 2 Output Voltage vs. Input Current (Buffers) Fig. 1 Output Voltage vs. Input Current (Inverters) 6 6 VCC = 5 V RL = 270 1 TA = 25˚C VOH 4 3 IF (OFF) VCC = 5 V RL = 270 1 TA = 25˚C 5 VO- Output Voltage (V) VO- Output Voltage (V) 5 IF (ON) 2 VOH 4 3 IF (OFF) IF (ON) 2 1 1 VOL VOL 0 0 0 1 2 3 4 0 5 1 2 IF - Input Current (mA) 3 4 5 IF - Input Current (mA) Fig. 3 Normalized Threshold Current vs. Shield Distance Fig. 4 Normalized Threshold Current vs. Supply Voltage 10 1.6 Black Shield + E D + Black Shield IF - Normalized Threshold Current IF(ON) - Normalized Threshold Current H21LOI d 0 d 0 Normalized to: VCC = 5 V IF = 20 mA Pulsed Pulse Width = 100 µs Duty Cycle = 0.1% 1 Normalized to: Turn ON Threshold VCC = 5 V TA = 25˚C 1.4 1.2 IF (ON) 1.0 0.8 IF (OFF) 0.6 0.4 0.2 0.0 0 1 2 3 4 5 6 7 8 0 d - Distance (mm) DS300294 5/29/01 2 4 6 8 10 12 14 16 VCC - Supply Voltage (V) 5 OF 8 www.fairchildsemi.com OPTOLOGIC® OPTICAL INTERRUPTER SWITCH H21LTB H21LTI H21LOB Fig. 5 Normalized Threshold Current vs. Ambient Temperature Fig. 6 Forward Current vs. Forward Voltage 100 Normalized to: VCC = 5 V TA = 25˚C TA = 25˚C 80 1.4 IF - Forward Current (mA) IF - Normalized Threshold Current 1.8 1.6 H21LOI IF (OFF) 1.2 IF (ON) 1.0 IF (ON) 0.8 IF (OFF) 0.6 0.4 60 40 20 0.2 0 1.0 0.0 -40 -20 0 20 40 60 80 100 1.1 1.2 TA - Ambient Temperature (˚C) 1.4 1.5 1.6 Fig. 8 Response Time vs. Forward Current Fig. 7 Low Output Voltage vs. Output Current 5 1 VCC = 5 V RL = 270 1 VCC = 5 V TA = 25˚C IF = 10 mA TA = 25˚C IF Pulsed T = 10 ms Duty Cycle = 50% 4 Response Delay Time (us) VOL- Output Voltage, Low (V) 1.3 VF - Forward Voltage (V) 0.1 3 TPLH 2 TPHL 1 0.01 0 1 10 0 IO - Output Current (mA) www.fairchildsemi.com 5 10 15 20 IF - Forward Current (mA) 6 OF 8 5/29/01 DS300294 OPTOLOGIC® OPTICAL INTERRUPTER SWITCH H21LTB H21LTI H21LOB Fig. 9 Switching Speed Test Circuit H21LOI Fig. 10 Typical Operating Circuit VCC C2 5V R IN RL R1 R2 .1 uf bypass Pulse Generator VO = 5V f = 10 KHz d.c. = 50% + V IN - VO .1 uf bypass C1 GND GND R 1 = 360 1 R 2 = 180 1 C 1 = 15 pf C 2 = 20 pf C 1 and C2 include probe and stray wire capacitance Fig. 11 Switching Times Definition for Buffers Fig. 12 Switching Times Definition for Inverters 50% 50% 0 mA 0 mA t PLH t PLH t PHL t PHL VOH VOH Output VO 90% 10% 10% 90% Output VO 50% 90% 10% VOL tr DS300294 5/29/01 90% 10% VOL tf tf 7 OF 8 tr www.fairchildsemi.com OPTOLOGIC® OPTICAL INTERRUPTER SWITCH H21LTB H21LTI H21LOB H21LOI 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. www.fairchildsemi.com 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. 8 OF 8 5/29/01 DS300294