LPD70 Series 250mA, 28Vdc Optically Isolated Dual Relay Part Number Description LPD70 250mA, 28Vdc dual solid-state relay MECHANICAL SPECIFICATION FEATURES/BENEFITS Current limiting output Thermal protection Automatic recovery Overload protection Dual output: Two relays in one package Low voltage drop MAXIMUM DESCRIPTION The LPD70 is a dual-output 28Vdc plastic relay with internal thermal protection. The relay utilizes optical isolation to provide excellent input-to-output isolation. Figure 1 LPD70 relay dimensions in inches (mm) The LPD70 offers a current limiting output to protect Tolerances are +/- .005 inch (.127) unless otherwise itself and associated load circuits from transient current specified overloads. During an overcurrent condition, the LPD70 clamps the current to a safe operating value. The INPUT (CONTROL) SPECIFICATIONS LPD70 also offers thermal protection. The thermal (40 to 85C) protection is activated by junction temperature. In case Min Max Units of an overload or shorted load condition, the thermal Control Voltage Range 4.0 7.0 Vdc protection limits the junction temperature. The LPD70 (See Note ) returns to normal operation automatically once the Input Current 5 Vdc (See Fig 2) 2 mA overload is removed. Must Turn-On Voltage 4 Vdc Must Turn-Off Voltage 0.8 Vdc Must Turn-Off Current 50 A Reverse Voltage 7 Vdc TM NERU R TPUN) ) N P O U L T T A G 6 E 6 D C INPUT CURRENT VS. INPUT VOLTAGE Figure 2 2007 TELEDYNE RELAYS (800) 284-7007 www.teledynerelays.com Page 2DSLPD70 Rev. BLPD70 Series 250mA, 28Vdc Optically Isolated Dual Relay OUTPUT (LOAD) SPECIFICATIONS Min Max Units Load Voltage Rating 33 Vdc 9 2%, 9 2%, Load Current (See Fig 6) 0.25 A ). /54 ). /54 Transient Voltage 80 Vdc n n n n Transient Supply Voltage 0). with Load shorted (5 sec max) 46 Vdc Output Capacitance 25Vdc 200 pF On-State Voltage Drop (See Fig 4) 0.5 Vdc 6DC On Resistance 2.0 Ohm Off-State Leakage Current (33Vdc) 0 A 6 Turn-On Time 2.5 ms Turn-Off Time ms 6 SUPPLY 6DC Overload Current Limit (See Fig 5) 0.9 A ,OAD ,OAD YPICAL 4 6 OVERLOAD/THERMAL PROTECTION SPECIFICATIONS (NOTE 8) TYPICAL WIRING DIAGRAM Min Typical Max Units Figure 3 Output Load Voltage 33 Vdc Junction Activation 50 C Temperature o Output Current (after 20 sec) 60 mArms Activation Time (See Fig. 7, Note7) 70 ms o o n ENVIRONMENTAL SPECIFICATIONS Min Max Units Operating Temperature 40 +85 C TNE RRU DAO , Storage Temperature 55 + 00 C Junction Temperature 00 C Thermal Resistance (Junction to Ambient) each relay 20 C/W Shock 500 g Vibration 00 g / U T P O U L T T A 6G E RO P 6 Dielectric Strength 500 Vac LOAD CURRENT VS. OUTPUT VOLTAGE DROP OVER TEMPERATURE Insulation Resistance 9 ( 500 Vdc) 0 Ohm Figure 4 Isolation 5 pF Resistance to Solder Dip, 0 seconds at +260C Soldering Heat MIL STD 202, method 2 0 Solderability MIL STD 202, method 208 Thermal Shock MIL STD 202, method 07 HAST JEDEC Test Method A 0 30C 85% RH, no power /VERLOAD URRENT ,IMIT applied, 50 hours n n n n EMPERATURE MBIENT 4 TYPICAL OVERLOAD CURRENT VS. TEMPERATURE Figure 5 Page 2 SPECIFICATIONS UNDER REVISION CONTROL 2007 TELEDYNE RELAYS 2DSLPD70 Rev. B
