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Maxim > Products > [Protection and Isolation]  [Power and Battery Management] 
MAX15000, MAX15001
Current-Mode PWM Controllers with Programmable Switching Frequency

Isolated/Nonisolated Current-Mode PWM Controllers in Tiny 10-Pin µMAX Packages with Adjustable Frequency from 12.5kHz to 625kHz


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Status
Active: In Production.

Data Sheet
FULL DATA SHEET (PDF, 248kB)
Download this datasheet in PDF formatDownload   Send this datasheet to any email addressE-Mail

Description
The MAX15000/MAX15001 current-mode PWM controllers contain all the control circuitry required for the design of wide-input-voltage isolated and nonisolated power supplies. The MAX15000 is well suited for universal input (rectified 85VAC to 265VAC) or telecom (-36VDC to -72VDC) power supplies. The MAX15001 is well suited for low input voltage (9.5VDC to 24VDC) power supplies.

The MAX15000/MAX15001 contain an internal error amplifier that regulates the tertiary winding output voltage which is used in primary-side regulated isolated power supplies. Primary-side regulation eliminates the need for an optocoupler. An input undervoltage lockout (UVLO) is provided for programming the input-supply start voltage and to ensure proper operation during brownout conditions. An open-drain UVLO flag output, with 210µs internal delay, allows the sequencing of a secondary-side controller. The input-supply start voltage is externally programmable with a voltage divider. A UVLO/EN input is used to shutdown the MAX15000/MAX15001. Internal digital soft-start eliminates output voltage overshoot.

The MAX15000 has an internal bootstrap UVLO with large hysteresis that requires a minimum 23.6V for startup. The MAX15001 does not have the internal bootstrap UVLO and can be biased directly from a minimum voltage of 9.5V.

The switching frequency for the MAX15000/MAX15001 is programmable with an external resistor. The MAX15000A/MAX15001A provide a 50% maximum duty-cycle limit, while the MAX15000B/MAX15001B provide a 75% maximum duty-cycle limit. These devices are available in 10-pin µMAX® packages and are rated for operation over the -40°C to +85°C temperature range.

An evaluation kit is available:  MAX15000AEVKIT  

Key Features   Applications/Uses
  • Current-Mode Control
  • Programmable Switching Frequency Up to 625kHz
  • Accurate UVLO Threshold (1%)
  • Open-Drain UVLO Flag Output with Internal Delay
  • 36V to 72V Telecom Voltage Range
  • Universal Offline Input Voltage Range
    • Rectified 85VAC to 265VAC (MAX15000)
  • 9.5V to 24V Input (MAX15001)
  • Digital Soft-Start
  • Internal Bootstrap UVLO With Large Hysteresis (MAX15000)
  • Internal Error Amplifier with 1.5% Accurate Reference
  • 50µA (typ) Startup Supply Current
  • 50% Maximum Duty-Cycle Limit (MAX15000A/MAX15001A)
  • 75% Maximum Duty-Cycle Limit (MAX15000B/MAX15001B)
  • 60ns Cycle-by-Cycle Current-Limit Propagation Delay
  • Available in Tiny 10-Pin µMAX Packages

 
  		• 1/2, 1/4, and 1/8th Brick Power Modules
  		• 12V Boost and SEPIC Regulators
  		• High-Efficiency, Isolated Telecom Power Supplies
  		• Industrial Power Conversion
  		• Isolated and Nonisolated High-Brightness LED Power Supplies
  		• Isolated Keep-Alive Power Supplies
  		• Networking/Server

    Key Specifications:  Isolated Power Supplies
    Part Number VIN
    (V)    		 VIN
    (V)    		 Topology Features Cntrl. Loop Feedback 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
    MAX15000  - -
    Flyback
    Single-Ended Forward
    Adjustable Frequency
    High Voltage Start-Up Circuit
    Internal Error Amplifier
    Thermal Shutdown
    UVLO
    		 Current Mode Primary Side 625
    50
    75
    		 0.09 2 1 -40 to +85 $0.93 @1k
    MAX15001  9.5 24 $0.93 @1k
    See All Isolated Power Supplies (31)

    Diagram
    MAX15000, MAX15001: Typical Operating Circuit
    Typical Operating Circuit

    Evaluation Kits
  		• MAX15000AEVKIT

    Reliability Reports
  		• Reliability Report: MAX15000.pdf
  		• Show FIT data for:
  		• Request Reliability Report for:

    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

    MAX15000 Free
    Sample    		 Buy Status
    Package: TYPE PINS FOOTPRINT
      DRAWING CODE/VAR *
    		Temp RoHS/Lead-Free?
    Materials Analysis
    MAX15000AEUB+T    
    		Active µMAX;10 pin;15 mm²
    Outline Drawing: 21-0061 (PDF)
    Land Pattern: 90-0330 (PDF)
    Use pkgcode/variation: U10+2*
    		-40°C to +85°C RoHS/Lead-Free: Lead Free
    Materials Analysis
    MAX15000BEUB+T    
    		Active µMAX;10 pin;15 mm²
    Outline Drawing: 21-0061 (PDF)
    Land Pattern: 90-0330 (PDF)
    Use pkgcode/variation: U10+2*
    		-40°C to +85°C RoHS/Lead-Free: Lead Free
    Materials Analysis
    MAX15000AEUB+  
    		Active µMAX;10 pin;15 mm²
    Outline Drawing: 21-0061 (PDF)
    Land Pattern: 90-0330 (PDF)
    Use pkgcode/variation: U10+2*
    		-40°C to +85°C RoHS/Lead-Free: Lead Free
    Materials Analysis
    MAX15000BEUB+  
    		Active µMAX;10 pin;15 mm²
    Outline Drawing: 21-0061 (PDF)
    Land Pattern: 90-0330 (PDF)
    Use pkgcode/variation: U10+2*
    		-40°C to +85°C RoHS/Lead-Free: Lead Free
    Materials Analysis
    MAX15001 Free
    Sample    		 Buy Status
    Package: TYPE PINS FOOTPRINT
      DRAWING CODE/VAR *
    		Temp RoHS/Lead-Free?
    Materials Analysis
    MAX15001AEUB+T    
    		Active µMAX;10 pin;15 mm²
    Outline Drawing: 21-0061 (PDF)
    Land Pattern: 90-0330 (PDF)
    Use pkgcode/variation: U10+2*
    		-40°C to +85°C RoHS/Lead-Free: Lead Free
    Materials Analysis
    MAX15001BEUB+T    
    		Active

    Land Pattern: Not Available

    		-40°C to +85°C See data sheet
    MAX15001AEUB+  
    		Active µMAX;10 pin;15 mm²
    Outline Drawing: 21-0061 (PDF)
    Land Pattern: 90-0330 (PDF)
    Use pkgcode/variation: U10+2*
    		-40°C to +85°C RoHS/Lead-Free: Lead Free
    Materials Analysis
    MAX15001BEUB+  
    		Active µMAX;10 pin;15 mm²
    Outline Drawing: 21-0061 (PDF)
    Land Pattern: 90-0330 (PDF)
    Use pkgcode/variation: U10+2*
    		-40°C to +85°C RoHS/Lead-Free: Lead Free
    Materials Analysis

    More Information
  		• New Product Press Release 2006-03-13 

    Related Products
    MAX5003 High-Voltage PWM Power-Supply Controller
    MAX5021, MAX5022 Current-Mode PWM Controllers for Isolated Power Supplies
    MAX5014, MAX5015 Current-Mode PWM Controllers with Integrated Startup Circuit for Isolated Power Supplies
    MAX5070, MAX5071 High-Performance, Single-Ended, Current-Mode PWM Controllers
    MAX5094A, MAX5094B, MAX5094C, MAX5094D, MAX5095A, MAX5095B, MAX5095C High-Performance, Single-Ended, Current-Mode PWM Controllers

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    Document Ref.: 19-3957; Rev 0; 2006-02-14
    This page last modified: 2007-08-07


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