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MAX845ESA+
Power Management IC, Transformer Driver for PCMCIA, 3.3 V or 5 V supply, 450 KHz Switch, SOIC-8
- Manufacturer:
- ANALOG DEVICES ANALOG DEVICES
- Manufacturer Part No:
- MAX845ESA+
- Newark Part No.:
- 78Y4988
- Technical Datasheet:
- MAX845ESA+ Datasheet
Product Overview
The MAX845ESA+ is an Isolated Transformer Driver for PCMCIA applications. The MAX845 provides an isolated power supply small enough to fit in thin PCMCIA cards and space-sensitive applications. It drives a low-profile centre-tapped transformer primary from a 5 or 3.3VDC power supply. The secondary can be wound to provide any isolated positive or negative voltage at powers up to 750mW. The MAX845 consists of an oscillator followed by a toggle flip-flop. The flip-flop generates two 50% duty-cycle square waves, which are complementary at half the oscillator frequency (450kHz, minimum). These two signals drive the ground-referenced N-channel power switches. Internal circuitry ensures break-before-make action between the two switches. A low-power shutdown disables both the switches and the oscillator, reducing power consumption.
- 450kHz Minimum switching frequency
- Ultralow input supply current ripple
- 5µW Low-power shutdown mode
- Low output ripple permits miniature output capacitors
- Bridge Ground Differentials; Isolated Data Acquisition; Isolated Interface Power Supply;
- Low-Power LAN Networks; Medical Equipment; Noise-Immunity Communications Interface; PCMCIA Modem Cards; Process Control
Applications
Test & Measurement, Power Management, Communications & Networking, Medical, Automation & Process Control
Product Information
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Technical Documents (2)
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$6.62
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