LH1056 SIEMENS | Alldatasheet

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Technical content

5–198 Absolute Maximum Ratings A =25 Emitter Peak Forward Current (1 m Derate Linearly from 25 C Detector 350 V 100 mA Derate Linearly from 25 Package RMS Isolation Resistance V IO =500 V, T A =25 W V IO =500 V, T A =100 W Derate Linearly from 25 C C C C C A K NC S NC .010 (.25) .014 (.35) .110 (2.79) .150 (3.81) .130 (3.30) .150 (3.81) .020 (.051) Min. .300 (7.62) Typ. .031 (0.80) .035 (0.90) .100 (2.54) Typ. .039 (1.00) Min. .018 (0.45) .022 (0.55) .248 (6.30) .256 (6.50) .335 (8.50) .343 (8.70) Pin One ID. 654 123 18° Typ. .300 (7.62) .347 (8.82) Typ. Package Dimensions in Inches (mm)

FEATURES

  • Normally Open, Single Pole Single Throw Operation
  • Control 350 VAC or DC Voltage
  • Switch 100 mA Loads
  • LED Control Current, 1.5 mA
  • Low ON-Resistance
  • dv/dt, >500 V/ms
  • Isolation Test Voltage, 3750 VAC RMS
  • Current Limiting
  • Underwriters Lab File # E52744

APPLICATIONS

  • Telephone Switch Hook
  • High Voltage Test Equipment
  • TRIAC Driver
  • Motor Control
  • Industrial Control Systems

DESCRIPTION

The LH1056 is a single pole single throw (SPST), nor- mally open (NO), solid state relay. The relay can control AC or DC loads currents up to 100 mA, with a supply voltage up to 350 V. The device is packaged in a six pin 0.3 inch dual-in line package. This package offers an insulation dielectric withstand of 7500 VAC PK The coupler consists of a AlGaAs LED that is optically coupled to a dielectrically isolated photodiode array which drives two series connected high voltage MOS transistors. The typical ON-Resistance is 30 W at 25 mA and is linear up to 50 mA. The incremental resistance drops to less than 20 W beyond 50 mA while reducing internal power dissipation at high load currents. There is built-in current limiting circuitry in the detector chip. LH1056 HIGH VOLTAGE, SOLID STATE RELAY OPTOCOUPLER

7 V, I

300 V, I

Figure 1. Timing test circuit Figure 2. LED forward current vs. forward voltage Figure 3. Timing waveform Figure 4. Terminal current vs. terminal voltage