MAX44286

PRODUCTION

Low-Power, Precision, 4-Bump WLP, Current-Sense Amplifier

Thinnest and Smallest Current-Sense Amplifier Features Ultra-Low Offset and Tiny Gain Error with Ultra-Low Power Consumption

Data Sheet (Rev. 0) Product Selection Table
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Overview

  • Ultra-Low Input Offset Voltage and Tiny Gain Error Allow Sense Resistor to Detect Tiny Currents (nA)
    • 30µV (max) Offset Voltage
    • 0.23% (max) Gain Accuracy
  • Low Current Consumption Saves Power
    • 12.5µA ICC for 200kHz Gain Bandwidth
  • Space-Saving 4-Bump WLP Package
    • 0.78mm x 0.78mm x 0.35mm
  • Industry-Leading Low-Power Supply Range
    • 1.6V to 5.5V Input Common Mode
  • Four Gain Options Offer Flexibility in Sense Resistor Selection
    • G = 25V/V (MAX44286T)
    • G = 50V/V (MAX44286F)
    • G = 100V/V (MAX44286H)
    • G = 200V/V (MAX44286W)

The MAX44286 is a zero-drift, high-side current-sense amplifier family that offers precision, low supply current and is available in a tiny 4-bump ultra-thin WLP of 0.78mm x 0.78mm x 0.35mm footprint. This miniature size is of paramount for today’s applications in smartphones, mobile accessories, notebooks, portable medical, and all battery-operated portable devices where current monitoring with precision and space are critical.

The MAX44286 has voltage output offered in four gain versions of 25V/V, 50V/V, 100V/V, and 200V/V. These four gain versions offer flexibility in the choice of the sense resistor and the very low input offset voltage helps in detecting small currents on the orders of low microamps. Low power capability also offers the possibility of minimizing power dissipation.

The MAX44286 operates with a supply voltage range of 1.6V to 5.5V over the -40°C to +85°C temperature range and from 1.8V to 5.5V over the -40°C to +125°C automotive temperature range. Supply voltage for the device is shared with the RS+ pin to fit the MAX44286 in a 4-bump, ultra-thin WLP package.

Applications

  • Mobile Accessories
  • Notebook Computers and Tablets
  • Portable Medical
  • Portable/Battery-Powered Systems
  • Power Management Systems
  • Smartphones
MAX44286
Low-Power, Precision, 4-Bump WLP, Current-Sense Amplifier
MAX44286: Typical Application Circuit
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Documentation

Data Sheet 1

Reliability Data 1

Technical Articles 1

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Software Resources

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Tools & Simulations

SPICE Model 1

Evaluation Kits

MAX44286EVKIT

Evaluation Kit for the MAX44286

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Features and Benefits

  • Precision Real-Time Current Monitoring
  • +1.8V to +5.5V Input Common-Mode Range
  • Proven PCB Layout
  • RoHS Compliant

Product Details

The MAX44286 evaluation kit (EV kit) provides a proven design to evaluate the MAX44286 zero-drift, high-side, current-sense amplifier that offers precision and low supply current. This EV kit demonstrates the MAX44286 in an ultra-small, 0.78mm x 0.78mm x 0.35mm, 4-bump WLP package.

The EV kit PCB comes with a MAX44286FAWS+ installed, which is the 50V/V gain version. Other gain options are available. Contact the factory for free samples of the pin-compatible MAX44286TAWS+ (25V/V gain), MAX44286HAWS+ (100V/V gain), and MAX44286WAWS+ (200V/V gain).

Applications

  • Mobile Accessories
  • Notebook Computers and Tablets
  • Portable Medical
  • Portable/Battery-Powered Systems
  • Power Management Systems
  • Smartphones
MAX44286EVKIT
Evaluation Kit for the MAX44286

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