Datasheet Maxim MAX845ESA+
| Manufacturer | Maxim |
| Series | MAX845 |
| Part Number | MAX845ESA+ |
Isolated Transformer Driver for PCMCIA Applications
Datasheets
Isolated Transformer Driver for PCMCIA Applications
Prices
Detailed Description
Internal Power MOSFETs Save Space and Deliver 750mW
The MAX845 provides an isolated power supply small enough to fit in thin PCMCIA cards and space-sensitive applications.
It drives a low-profile center-tapped transformer primary from a 5V or 3.3V DC 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, min). 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. An evaluation kit (MAX845EVKIT-MM) is available to evaluate low-profile 5V 40mA and 5V 100mA applications.
Model Line
Manufacturer's Classification
- Power > Isolated Power Supplies
