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MAX845 Datasheet PDF

Part Series:MAX845 Series
Category:Battery Management
Description:Maxim Isolated DC-DC Converter, Vin 0.3 7V dc, Vout 4V dc
Document:MAX845ESA+T Datasheet PDF (17 Pages)

MAX845 Battery Management Datasheet PDF

MAX845 Datasheet PDF Battery Management

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MAX845EUA+T - Maxim Integrated Specifications

TYPE
DESCRIPTION
Mounting Style
Surface Mount
Number of Pins
8 Pin
Supply Voltage (DC)
5.00 V
Case/Package
uMAX-8
Power Rating
0.75 W
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MAX845EUA+T - Maxim Integrated Function Overview

The MAX845EUA+T is an isolated transformer driver for PCMCIA applications in 8 pin µMAX package. It drives a low-profile centre 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. Typical applications include PCMCIA modem cards, isolated data acquisition, isolated interface power supply, noise-immunity communications interface, bridging ground differences, process control and low power LAN networks.
Supply voltage range is 2.5V to 6V
Operating temperature range from -40°C to 85°C
Minimum switching frequency is 450KHz
Ultra low input supply current ripple
Low power shutdown reduces the supply current to 5µW
Low output ripple permits miniature output capacitors
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