OLC249
6Pages

DATA SHEET Features • Non-Hermetic SMT package • 1000 Vdc electrical isolation • High CTR • Small package size • Radiation tolerant Description The OLC249 can be used for large satellite constellation applications that require optical isolation in radiation environments such as gamma, neutron, and proton radiation with a high CTR and low saturation VCE. Each optocoupler consists of an LED and N-P-N silicon phototransistor that is electrically isolated, but optically coupled inside a non-hermetic six-pin Leadless Chip Carrier (LCC) package. Electrical parameters are similar to the JEDEC registered 4N49 optocoupler, but with a higher CTR and better CTR degradation characteristics due to radiation exposure. The hermetic surface mount variant of the OLC249 optocoupler is available as the OLS249, both in a non-screened catalog version as well as a high-reliability screened version. The OLC249 is designed for a low LED operating current while providing excellent radiation tolerance margins. Figure 1. OLC249 Block Diagram A functional block diagram of the OLC249 is shown in Figure 1. The absolute maximum ratings of the OLC249 are provided in Table 1. Electrical specifications are provided in Table 2. Typical performance characteristics of the OLC249 are illustrated in Figures 2 through 4. A typical switching test circuit is shown in Figure 5 and package dimensions for the OLC249 are provided in Figure 6. Skyworks Solutions, Inc. • Phone [781] 376-3000 • Fax [781] 376-3100 • sales@skyworksinc.com • www.skyworksinc.com 206216B • Skyworks Proprietary Information • Products and Product Information are Subject to Change Without Notice • April 20, 2022

Table 1. OLC249 Absolute Maximum Ratings1 Exposure to maximum rating conditions for extended periods may reduce device reliability. There is no damage to the device with only one parameter set at the limit and all other parameters set at or below their nominal value. Exceeding any of the limits listed here may result in permanent damage to the device. Measured between pins 1, 2, and 6 shorted together, and pins 3, 4, and 5 shorted together. Ta = 25°C and duration = 1 s. Derate linearly to 125 °C free-air temperature at 0.67 mA/°C above 65 °C. For pulse width < 1 ps, pulse repetition rate <...

Table 2. OLC249 Electrical Specifications1 (Ta = 25 °C, Unless Otherwise Noted) 1 Performance is guaranteed only under the conditions listed in the above table. 2 Measured between pins 1, 2, and 6 shorted together, and pins 3, 4, and 5 shorted together. Ta = 25°C and duration = 1 s. Skyworks Solutions, Inc. • Phone [781] 376-3000 • Fax [781] 376-3100 • sales@skyworksinc.com • www.skyworksinc.com 206216B • Skyworks Proprietary Information • Products and Product Information are Subject to Change Without Notice • April 20, 2022 3

DATA SHEET • OLC249: RADIATION-TOLERANT PHOTOTRANSISTOR NON-HERMETIC SURFACE-MOUNT OPTOCOUPLER Typical Performance Characteristics Figure 2. Forward Current vs Diode Forward Voltage Figure 3. Normalized Collector Current vs Forward Current Figure 4. Normalized CTRCE vs Temperature Skyworks Solutions, Inc. • Phone [781] 376-3000 • Fax [781] 376-3100 • sales@skyworksinc.com • www.skyworksinc.com 4 • Skyworks Proprietary Information • Products and Product Information are Subject to Change Without Notic

DATA SHEET • OLC249: RADIATION-TOLERANT PHOTOTRANSISTOR NON-HERMETIC SURFACE-MOUNT OPTOCOUPLER Figure 5. OLC249 Switching Test Circuit Figure 6. OLC249 Package Dimensions Skyworks Solutions, Inc. • Phone [781] 376-3000 • Fax [781] 376-3100 • sales@skyworksinc.com • www.skyworksinc.com 206216B • Skyworks Proprietary Information • Products and Product Information are Subject to Change Without Notice • Apri

DATA SHEET • OLC249: RADIATION-TOLERANT PHOTOTRANSISTOR NON-HERMETIC SURFACE-MOUNT OPTOCOUPLER Copyright © 2022 Skyworks Solutions, Inc. All Rights Reserved. Information in this document is provided in connection with Skyworks Solutions, Inc. (“Skyworks”) products or services. These materials, including the information contained herein, are provided by Skyworks as a service to its customers and may be used for informational purposes only by the customer. Skyworks assumes no responsibility for errors or omissions in these materials or the information contained herein. Skyworks may change its...