IS801 Transformer Driver for Isolated Power Supplies
●The IS801 is a monolithic oscillator/power-driver, which is designed for small form factor, isolated power supplies in isolated interface applications. A low-profile, center-tapped transformer primary from a 3.3V or 5V DC power supply can be driven by IS801 while the secondary can be wound to provide any isolated voltage based on transformer turns ratio.
●The IS801 provides the complementary output signals to drive the ground referenced N-channel power switches. In addition to internal break-before-make logic between two switches, the IS801 is also integrated with VCC undervoltage protection and thermal shutdown protection. The added spread spectrum clocking can help pass the system EMI test.
●The IS801 is available in a small SOT23-5 package, and is specified for operation at temperatures from –40°C to 125°C. See Table 1 for the order information.
■FEATURES:
●Push-pull driver for small transformers
●Single 3.3V or 5V supply
●High primary-side current drive:
◆5V supply: 500mA (max)
◆3.3V supply: 500mA (max)
●Low ripple on rectified output permits small output capacitors
●VCC undervoltage detect
●Spread spectrum clocking for EMI
●Thermal shutdown protection
●Small SOT23-5 package
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[ Isolated interface power supply ][ Industrial automation ][ Process control ][ Medical equipment ][ Isolated Power Supplies ] |
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Datasheet |
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Please see the document for details |
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SOT23-5;SOT23-6 |
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English Chinese Chinese and English Japanese |
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16 September 2022 |
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Rev A |
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1 MB |
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