MAX13253ATB+T by Analog Devices

1A Spread-Spectrum Push-Pull Transformer Driver for Isolated Power Supplies


The MAX13253 is a 1A push-pull transformer driver designed to provide a simple solution for low-EMI isolated power supplies. The MAX13253 has an internal oscillator and operates from a single +3.0V to +5.5V supply. The transformer’s secondary-to-primary winding ratio defines the output voltage, allowing selection of virtually any isolated output voltage with galvanic isolation. The MAX13253 features an integrated oscillator driving a pair of N-channel power switches. The driver includes pin-selectable spread-spectrum oscillation and a well-controlled slew rate to reduce EMI. The MAX13253 can optionally be driven by an external clock to further manage EMI. Internal circuitry guarantees a fixed 50% duty cycle to prevent DC current flow through the transformer, regardless of which clock source is used. The MAX13253 operates with up to 1A of continuous current and features integrated protection including fault detection, overcurrent protection, and thermal shutdown. The MAX13253 includes a low-current shutdown mode to reduce the overall supply current to less than 5µA (max) when the driver is disabled. The MAX13253 is available in a small, 10-pin, (3mm x 3mm) TDFN package and is specified over the -40°C to +125°C temperature range.

Where to Buy

Prices starting from US$5.07

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Features

Simple, Flexible Design +3.0V to +5.5V Supply Range Low RON 300mΩ (max) at 4.5V Up to 90% Efficiency Provides Up to 1A to the Transformer Internal or External Clock Source Internal Oscillator Frequency: 250kHz or 600kHz Optional Spread-Spectrum Oscillation -40°C to +125°C Temperature Range
+3.0V to +5.5V Supply Range
Low RON 300mΩ (max) at 4.5V
Up to 90% Efficiency
Provides Up to 1A to the Transformer
Internal or External Clock Source
Internal Oscillator Frequency: 250kHz or 600kHz
Optional Spread-Spectrum Oscillation
-40°C to +125°C Temperature Range
Integrated System Protection Fault Detection and Indication Overcurrent Limiting Undervoltage Lockout Thermal Shutdown
Fault Detection and Indication
Overcurrent Limiting
Undervoltage Lockout
Thermal Shutdown
Saves Space on Board Small 10-Pin TDFN Package (3mm x 3mm)
Small 10-Pin TDFN Package (3mm x 3mm)

Specifications

VIN (V) (min) 3
VIN (V) (max) 5.5
Driver Output Resistance (Ω) (max) 0.3
Max. IOUT (A) 1
Topology Push-Pull
IQ (mA) (max) 3.5
Package/Pins TDFN/10
Oper. Temp. (°C) -40 to +125
BudgetaryPrice (See Notes) 3.94


MAX13253ATB+T Special Function by Analog Devices

TRANSFORMER DRIVER TDFN-10

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

The MAX13253 is a 1A, push-pull, transformer driver designed to provide a simple solution for low-EMI isolated power supplies. The MAX13253 has an internal oscillator and operates from a single +3.0V to +5.5V supply. The transformer’s secondary-to-primary winding ratio defines the output voltage, allowing selection of virtually any iso- lated output voltage with galvanic isolation. The MAX13253 features an integrated oscillator driving a pair of n-channel power switches. The driver includes pin-selectable spread-spectrum oscillation and a well- controlled slew rate to reduce EMI. The MAX13253 can optionally be driven by an external clock to further man- age EMI. Internal circuitry guarantees a fixed 50% duty cycle to prevent DC current flow through the transformer, regardless of which clock source is used. The MAX13253 operates with up to 1A of continuous current and features integrated protection including fault detection, overcurrent protection, and thermal shutdown. The MAX13253 includes a low-current shutdown mode to reduce the overall supply current to less than 5µA (max) when the driver is disabled. The MAX13253 is available in a small 10-pin (3mm x 3mm) TDFN package and is specified over the -40°C to +125°C temperature range.

Specifications

IC Function Transformer Driver
Supply Voltage Min 3V
Supply Voltage Max 5.5V
IC Package Type TDFN
No. of Pins 10Pins
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 Driver for Isolate | Analog Devices
Transformer Driver, Tdfn-10 | Newark Electronics
TRANSFORMER DRIVER, TDFN-10 | element14

Frequently Asked Questions

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Is the MAX13253ATB+T RoHS compliant?

This part has not been flagged as RoHS Compliant.

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Authorised distributors including Analog Devices, Newark Electronics, element14 and Farnell have stock available or on a lead time for MAX13253ATB+T .

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