MAX845ESA - Maxim Integrated

The pictures are for reference only, and the specific specifications can be found in the product manual.

Part No

MAX845ESA
Manufacturer

Maxim Integrated
ChipWorker Part#

CW151319037
Category

Battery Management IC
Package

SOIC-8
Description

Isolated Transformer Driver 8Pin SOIC N
Documentation

Datasheet

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MAX845ESA Specifications

Attribute	Attribute Value

Part Number	MAX845ESA
Manufacturer	Maxim Integrated
ChipWorker Part#	CW151319037
Category	Battery Management IC
Documentation	Datasheet
Mounting Style	Surface Mount
Number of Pins	8 Pin
Case/Package	SOIC-8
Supply Voltage (DC)	5.00 V
Number of Outputs	2 Output
Output Voltage	5.00 V
Output Current	1.00 A
Supply Current	1.1 mA
Number of Regulated Outputs	2 Output
Supply Voltage	2.5V ~ 6V
	expand all
Operating Temperature	-40℃ ~ 85℃
Product Lifecycle Status	Unknown
Packaging	Tube
RoHS	Non-Compliant
Lead-Free Status	Contains Lead

Product Description

General Description
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 switch es. 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.
Features
♦ 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
♦ 8-Pin SO and µMAX Packages
♦ Low Output Ripple Permits Miniature Output Capacitors
Applications
PCMCIA Modem Cards
Isolated Data Acquisition
Isolated Interface Power Supply
Noise-Immunity Communications Interface
Bridging Ground Differences
Medical Equipment
Process Control
Low-Power LAN Networks

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Ordering Information

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