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Maxim > Products > [Power and Battery Management] 
MAX5075
Push-Pull FET Driver with Integrated Oscillator and Clock Output


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Status
Active: In Production.

Data Sheet
FULL DATA SHEET (PDF, 232kB)
Download this datasheet in PDF formatDownload   Send this datasheet to any email addressE-Mail

Description
The MAX5075 is a +4.5V to +15V push-pull, current-fed topology driver subsystem with an integrated oscillator for use in telecom module power supplies. The device drives two MOSFETs connected to a center-tapped transformer primary providing secondary-side, isolated, negative or positive voltages. This device features a programmable, accurate, integrated oscillator with a synchronizing clock output that synchronizes an external PWM regulator. A single external resistor programs the internal oscillator frequency from 50kHz to 1.5MHz.

The MAX5075 incorporates a dual MOSFET driver with ±3A peak drive currents and 50% duty cycle. The MOSFET driver generates complementary signals to drive external ground-referenced n-channel MOSFETs.

The MAX5075 is available with a clock output frequency to MOSFET driver frequency ratio of 1x, 2x, and 4x. The MAX5075 is available in a thermally enhanced 8-pin µMAX® package and is specified over the -40°C to +125°C operating temperature range.

Key Features   Applications/Uses
  • Current-Fed, Push-Pull Driver Subsystem
  • Programmable, Accurate Internal Oscillator
  • Single +4.5V to +15V Supply Voltage Range
  • Dual ±3A Gate-Drive Outputs
  • 1mA Operating Current at 250kHz with No Capacitive Load
  • Synchronizing Clock Frequency Generation Options
  • Thermally Enhanced 8-Pin µMAX Package
  • -40°C to +125°C Operating Temperature Range

 
  		• Current-Fed, High-Efficiency Power-Supply Modules
  		• Power-Supply Building Subsystems
  		• Push-Pull Driver Subsystems

    Key Specifications:  Isolated Power Supplies
    Part Number VIN
    (V)    		 VIN
    (V)    		 Topology Features Freq.
    (kHz)    		 Duty Cycle
    (%)    		 ISTARTUP
    (mA)    		 ICC
    (mA)    		 Gate Drive Current
    (A)    		 Oper. Temp.
    (°C)    		 Price
    min max min max max max max See Notes
    MAX5075  4.5 15 Push-Pull
    Adjustable Frequency
    Synchronizable Freqeuncy
    UVLO
    		 1500 50 3 3 3 -40 to +125 $0.93 @1k
    See All Isolated Power Supplies (31)

    Key Specifications:  Low-Side MOSFET Drivers
    Part Number Description IOUT
    (A)    		 Rise/ Fall Time @+25°C
    (ns)    		 Package/Pins Smallest Available Pckg.
    (mm2)    		 Oper. Temp.
    (°C)    		 Price
    peak max max w/pins See Notes
    MAX5075 
    Clock Output
    Internal Oscillator
    Push Pull
    		 3 10/10 typical (2000pF)
    µMAX-EP/8
    		 15 -40 to +125 $0.93 @1k
    See All Low-Side MOSFET Drivers (26)

    Diagram
    MAX5075: Typical Operating Circuit
    Typical Operating Circuit

    Reliability Reports
  		• Show FIT data for:
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    Software/Models
    none

    Ordering Information
    Notes:

    1. Other options and links for purchasing parts are listed at: http://www.maxim-ic.com/sales.
    2. Didn't Find What You Need? Ask our applications engineers. Expert assistance in finding parts, usually within one business day.
    3. Part number suffixes: T or T&R = tape and reel;+ = RoHS/lead-free;# = RoHS/lead-exempt. More: SeeFull Data Sheet or Part Naming Conventions.
    4. * Some packages have variations, listed on the drawing. "PkgCode/Variation" tells which variation the product uses. Note that "+", "#", "-" in the part number suffix describes RoHS status. Package drawings may show a different suffix character.


    Devices: 1-8 of 8

    MAX5075 Free
    Sample    		 Buy Status
    Package: TYPE PINS FOOTPRINT
      DRAWING CODE/VAR *
    		Temp RoHS/Lead-Free?
    Materials Analysis
    MAX5075AAUA+  
    		Active µMAX-EP;8 pin;15 mm²
    Outline Drawing: 21-0107 (PDF)
    Land Pattern: 90-0145 (PDF)
    Use pkgcode/variation: U8E+2*
    		-40°C to +125°C RoHS/Lead-Free: Lead Free
    Materials Analysis
    MAX5075AAUA+T    
    		Active µMAX-EP;8 pin;15 mm²
    Outline Drawing: 21-0107 (PDF)
    Land Pattern: 90-0145 (PDF)
    Use pkgcode/variation: U8E+2*
    		-40°C to +125°C RoHS/Lead-Free: Lead Free
    Materials Analysis
    MAX5075AAUA    
    		Active µMAX-EP;8 pin;15 mm²
    Outline Drawing: 21-0107 (PDF)
    Land Pattern: 90-0145 (PDF)
    Use pkgcode/variation: U8E-2*
    		-40°C to +125°C RoHS/Lead-Free: No
    Materials Analysis
    MAX5075AAUA-T    
    		Active µMAX-EP;8 pin;15 mm²
    Outline Drawing: 21-0107 (PDF)
    Land Pattern: 90-0145 (PDF)
    Use pkgcode/variation: U8E-2*
    		-40°C to +125°C RoHS/Lead-Free: No
    Materials Analysis
    MAX5075BAUA    
    		Active µMAX-EP;8 pin;15 mm²
    Outline Drawing: 21-0107 (PDF)
    Land Pattern: 90-0145 (PDF)
    Use pkgcode/variation: U8E-2*
    		-40°C to +125°C RoHS/Lead-Free: No
    Materials Analysis
    MAX5075BAUA-T    
    		Active

    Land Pattern: Not Available

    		-40°C to +125°C See data sheet
    MAX5075CAUA    
    		Active µMAX-EP;8 pin;15 mm²
    Outline Drawing: 21-0107 (PDF)
    Land Pattern: 90-0145 (PDF)
    Use pkgcode/variation: U8E-2*
    		-40°C to +125°C RoHS/Lead-Free: No
    Materials Analysis
    MAX5075CAUA-T    
    		Active

    Land Pattern: Not Available

    		-40°C to +125°C See data sheet

    More Information
  		• Topmark Coding: MAX5075
  		• New Product Press Release 2005-06-06 

    Related Products
    MAX5077 Push-Pull FET Driver with Integrated Oscillator and Programmable Clock Output

    More Like This: View Product Families for Similar Products

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    Document Ref.: 19-3662; Rev 1; 2007-06-04
    This page last modified: 2007-06-04


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