| TYPE | DESCRIPTION |
|---|
| Mounting Style | Surface Mount |
| Number of Pins | 8 Pin |
| Supply Voltage (DC) | 5.00 V |
| Case/Package | SOIC-8 |
| Number of Outputs | 1 Output |
| Output Voltage | 12 V |
| Output Current | 1 A |
| Supply Current | 1.1 mA |
| Number of Channels | 2 Channel |
| Number of Positions | 8 Position |
| Number of Regulated Outputs | 2 Output |
| Output Current (Max) | 100 mA |
| Operating Temperature (Max) | 85 ℃ |
| Operating Temperature (Min) | -40 ℃ |
| Supply Voltage | 5 V |
| Supply Voltage (Max) | 5.5 V |
| Supply Voltage (Min) | 4.5 V |
| Input Voltage | 3.3V, 5V |
| TYPE | DESCRIPTION |
|---|
| Product Lifecycle Status | Unknown |
| Packaging | Each |
| Size-Length | 5 mm |
| Size-Width | 4 mm |
| Size-Height | 1.5 mm |
| Operating Temperature | -40℃ ~ 85℃ |
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
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* Transformer Driver for Ultra-Thin 5V-µs Transformers * Isolated DC-to-DC Power Supply for PCMCIA Applications * 450kHz Minimum Switching Frequency * Ultra-Low Input Supply Current Ripple * Single +5V or +3.3V Supply * 5μW Low-Power Shutdown Mode * 8Pin SO and µMAX Packages * Low Output Ripple Permits Miniature Output Capacitors
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