DESCRIPTION
The LH1533 (Dual 1 Form A) relays are SPST normally open switches that can replace electromechanical relays in many applications. The relays are constructed using a GaAlAs LED for actuation control and an integrated monolithic die for the switch output.
The die, fabricated in a high-voltage dielectrically isolated BICMOS technology, is comprised of a photodiode array, switch control circuitry, and MOSFET switches. In addition, the relay employs current-limiting circuitry enabling it to pass FCC 68.302 and other regulatory voltage surge requirements when overvoltage protection is provided.
FEATURES
• Load voltage, 350 V
• Load current 70 mA
• TRON, typical at 100 mA
• 3750 Vrms I/O isolation
• Current-limit protection
• High-surge capability
• Linear, ac/dc or dc operation
• Clean, bounce-free switching
• Low power consumption
• High-reliability monolithic receptor
• Surface-mountable
APPLICATIONS
• General telecom switching
– On/off-hook
– Dial pulse
– Ground start
– Ground fault protection
• Instrumentation
• Industrial controls
• Peripherals
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