OLS2449 Datasheet, PDF (1/6 Pages) Skyworks Solutions Inc. – Dual Channel, Radiation Tolerant, Phototransistor Hermetic Surface Mount Optocoupler

TM
DATA SHEET
OLS2449: Dual Channel, Radiation Tolerant, Phototransistor
Hermetic Surface Mount Optocoupler
Features
 Same reliable processing and construction as the OLS049, but
with a higher current transfer ratio (CTR)
 CTR is:
– Guaranteed over –55 °C to +100 °C ambient temperature
range
– High at low LED currents
 High BVCEO, 65V minimum
 1500 VDC electrical isolation
 High-reliability screening is available
Description
The OLS2449 is specifically designed for high-reliability
applications that require optical isolation in radiation
environments such as gamma, neutron, and proton radiation with
high CTR and low saturation VCE. Each optocoupler channel
consists of an LED and N-P-N silicon phototransistor that is
electrically isolated, but optically coupled inside a hermetic eight-
pin Leadless Chip Carrier (LCC) package.
The electrical parameters are similar the JEDEC registered 4N49U
optocoupler, but with a higher CTR and better CTR degradation
characteristics due to radiation exposure.
The OLS2449 has 100 percent high-reliability screening parts
available (contact Isolink for more information).
Figure 1. OLS2449 Block Diagram
Figure 1 shows the OLS2449 functional block diagram. Table 1
provides the OLS2449 absolute maximum ratings. Table 2
provides the OLS2449 electrical specifications.
Figures 2 through 4 illustrate the OLS2449 typical performance
characteristics. Figure 5 shows the OLS2449 switching test
circuit. Figure 6 provides the OLS2449 package dimensions.
Isolink, Inc. • Phone [408] 946-1968 • Fax [408] 946-1960 • [e-mail] • www.isolink.com
202472C • Isolink Proprietary Information • Products and Product Information are Subject to Change Without Notice • May 5, 2015
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