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MAX1822
High-Side Power Supply


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Status
Active: In Production.

Data Sheet
FULL DATA SHEET (PDF, 180kB)
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Description
The MAX1822 high-side supply, using a regulated charge pump, generates a regulated output voltage 11V greater than the input supply voltage to power high-side switching and control circuits. The MAX1822 allows low-resistance N-channel MOSFETs (FETs) to be used in circuits that normally require costly, less efficient P-channel FETs and PNP transistors. The high-side output also eliminates the need for logic FETs in +5V and other low-voltage switching circuits.

A +3.5V to +16.5V input supply range and a typical quiescent current of only 150µA make the MAX1822 ideal for a wide range of line- and battery-powered switching and control applications where efficiency is crucial. Also provided is a logic-level power-ready output (PR) to indicate when the high-side voltage reaches the proper level.

The MAX1822 comes in an 8-pin SO package and requires three inexpensive external capacitors. The MAX1822 is a pin-for-pin replacement to the MAX622.

Key Features   Applications/Uses
  • +3.5V to +16.5V Operating Supply Voltage Range
  • Output Voltage Regulated to VCC + 11V (typ)
  • 150µA (typ) Quiescent Current
  • Power-Ready Output
 
  • Battery Management
  • H-Switches
  • High-Side Power Control with N-Channel FETs
  • Low-Dropout Voltage Regulators
  • Portable Computing
  • Power Switching from Low Supply Voltages
  • Stepper Motor Drivers

Key Specifications:  High-Side MOSFET Drivers
Part Number Description High Side Volt.
(V)
VSUPPLY
(V)
VSUPPLY
(V)
Package/Pins Smallest Available Pckg.
(mm2)
Oper. Temp.
(°C)
Price
typ min max max w/pins See Notes
MAX1822  High Side Power Supply for Gate Drive VIN + 11 3.5 16.5
PDIP(N)/8
SOIC(N)/8
79.7 -40 to +85 $1.95 @1k
See All High-Side MOSFET Drivers (5)

Diagram
MAX1822: Typical Operating Circuit
Typical Operating Circuit

Reliability Reports
  • Reliability Report: MAX1822.pdf
  • Show FIT data 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: 1-7 of 7

    MAX1822 Free
    Sample
    Buy Status
    Package: TYPE PINS FOOTPRINT
      DRAWING CODE/VAR *
    Temp RoHS/Lead-Free?
    Materials Analysis
    MAX1822EPA+  
    Active PDIP(N);8 pin;79.7 mm²
    Outline Drawing: 21-0043 (PDF)
    Land Pattern: Not Applicable
    Use pkgcode/variation: P8+2*
    -40°C to +85°C RoHS/Lead-Free: Lead Free
    Materials Analysis
    MAX1822EPA    
    Active PDIP(N);8 pin;79.7 mm²
    Outline Drawing: 21-0043 (PDF)
    Land Pattern: Not Applicable
    Use pkgcode/variation: P8-2*
    -40°C to +85°C RoHS/Lead-Free: No
    Materials Analysis
    MAX1822ESA/M10114    
    Active

    Land Pattern: Not Available

    -40°C to +85°C See data sheet
    MAX1822ESA    
    Active SOIC(N);8 pin;30.9 mm²
    Outline Drawing: 21-0041 (PDF)
    Land Pattern: 90-0096 (PDF)
    Use pkgcode/variation: S8-4*
    -40°C to +85°C RoHS/Lead-Free: No
    Materials Analysis
    MAX1822ESA-T    
    Active

    Land Pattern: Not Available

    -40°C to +85°C See data sheet
    MAX1822ESA+  
    Active SOIC(N);8 pin;30.9 mm²
    Outline Drawing: 21-0041 (PDF)
    Land Pattern: 90-0096 (PDF)
    Use pkgcode/variation: S8+4*
    -40°C to +85°C RoHS/Lead-Free: Lead Free
    Materials Analysis
    MAX1822ESA+T    
    Active

    Land Pattern: Not Available

    -40°C to +85°C See data sheet

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    Document Ref.: 19-1892; Rev 0; 2001-01-25
    This page last modified: 2007-06-14


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