MAX256ASA+T by Analog Devices

3W Primary-Side Transformer H-Bridge Driver for Isolated Supplies

Status: Active
Series: MAX256
RoHS: Unknown
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The MAX256 is an integrated primary-side controller and H-bridge driver for isolated power-supply circuits. The device contains an on-board oscillator, protection circuitry and internal FET drivers to provide up to 3W of power to the primary winding of a transformer. The MAX256 can be operated using the internal programmable oscillator or can be driven by an external clock for improved EMI performance. Regardless of the clock source being used, an internal flip-flop stage guarantees a fixed 50% duty cycle to prevent DC current flow in the transformer. The MAX256 operates from a single-supply voltage of +5V or +3.3V, and includes undervoltage lockout for controlled startup. The device prevents cross-conduction of the H-bridge MOSFETs by implementing break-before-make switching. Thermal shutdown circuitry provides additional protection against damage due to overtemperature conditions. The MAX256 is available in the 8-pin thermally-enhanced SO package. The device is specified for the automotive (-40°C to +125°C) temperature range.

Prices starting from US$5.79


Distributor Starting From Stock
Logo for element14 element14 US$5.79
2,114
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Logo for Farnell Farnell US$6.02
2,114
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Logo for Newark Electronics Newark Electronics US$5.91
-
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Features

Simple, Flexible Design Provides Up to 3W to the Transformer in Isolated Power Supplies Single Supply +5V or +3.3V Operation Internal Resistor-Programmable Oscillator Mode External Clock Mode with Watchdog Disable Mode
Single Supply +5V or +3.3V Operation
Internal Resistor-Programmable Oscillator Mode
External Clock Mode with Watchdog
Disable Mode
Integrated System Protection Undervoltage Lockout Thermal Shutdown
Undervoltage Lockout
Thermal Shutdown
Saves Space on Board 8-Pin Thermally-Enhanced SO Package
8-Pin Thermally-Enhanced SO Package

Specifications

VIN (V) (min) 3
VIN (V) (max) 5.5
Driver Output Resistance (Ω) (max) 1
Max. IOUT (A) 1
Topology Full-Bridge
Switching Frequency (kHz) 1000
IQ (mA) (max) 1
Package/Pins SOIC (N)/8
Oper. Temp. (°C) -40 to +125
BudgetaryPrice (See Notes) 3.89


MAX256ASA+T Semiconductors - ICs by Analog Devices

TRANSFORMER H-BRIDGE DRIVER NSOIC-8

Status: Unknown
Series: -
RoHS: Unknown
View Datasheet Manufacturer Site View Pricing & Stock

Specifications

Supply Voltage 5V
No. of Step-Down DC - DC Converters -
No. of LDO Regulators -
No. of Regulated Outputs 2
Digital IC Case NSOIC
No. of Pins 8Pins
Operating Temperature Min -40°C
Operating Temperature Max 125°C
Product Range -
Automotive Qualification Standard -
RoHS Phthalates Compliant To Be Advised
MSL MSL 1 - Unlimited
SVHC No SVHC (15-Jan-2018)

Alternative Descriptions

TRANSFORMER H-BRIDGE DRIVER, NSOIC-8 | element14
3W Primary-Side Transformer H-Bridge | RS
Transformer H-Bridge Driver, Nsoic-8 | Newark Electronics

Frequently Asked Questions

Where can I find additional details, specifications and documents for a MAX256ASA+T ?

Additional datasheets, footprints and schematics for MAX256ASA+T are listed on our Part Details page. You can also find images and similar parts to MAX256ASA+T on this page.

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Is the MAX256ASA+T RoHS compliant?

This part has not been flagged as RoHS Compliant.

Which authorised distributors for MAX256ASA+T have stock available?

Authorised distributors including element14, Farnell, RS and Newark Electronics have stock available or on a lead time for MAX256ASA+T .

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