MAX16543

PRODUCTION

Integrated Protection IC on a High-Power 12V Bus with an Integrated MOSFET and Lossless Current Sensing

Industry's First Protection IC with Integrated MOSFET for Loads > 60A on 12V Bus

Data Sheet (Rev. 0) Product Selection Table
Part Models
2
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Part Details

  • Used with the MAX16545B/MAX16545C to Provide Integrated Protection for Loads > 60A On 12V Bus
  • High Density: Industry’s Smallest Circuit Breaker Solution Provides More Than 75% Board Area Savings
    • 12-Lead QFN Package
    • Integrated Power MOSFET with 1.5mΩ Total Resistance in 12V Power Path (RDS(ON), Including Package), Not Including Any Parallel Devices
  • Lossless, Precise Total System Current Sensing and Reporting
  • PMBus/SMBus Control and Reporting Through the MAX16545B/MAX16545C
  • Increases Power-Supply Reliability with IC Self- Protection Features
    • Very Fast Fault Detection and Isolation
    • VIN to VOUT Short Protection During Startup
    • Overtemperature Protection
  • Three Levels of Overcurrent Protection (OCP)
    • Programmable Moderate OCP
    • Programmable Severe OCP Provides Isolation < 5µs
    • Fail-Safe Safe OCP Provides Isolation < 250ns
  • Modular Design, MAX16545B/MAX16545C with Single or Dual MAX16543 in Parallel Provide Different DC Current Capabilities
    • MAX16545B/MAX16545C + 1 MAX16543: 90A DC Capability
    • MAX16545B/MAX16545C + 2 MAX16543: 120A DC Capability
MAX16543
Integrated Protection IC on a High-Power 12V Bus with an Integrated MOSFET and Lossless Current Sensing
MAX16543: Master + 1 Follower Chipset
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Documentation

Data Sheet 1

Reliability Data 1

Design Note 1

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Tools & Simulations

LTspice 1

Models for the following parts are available in LTspice:

  • MAX16543
LTspice

LTspice® is a powerful, fast and free simulation software, schematic capture and waveform viewer with enhancements and models for improving the simulation of analog circuits.

Evaluation Kits

MAX16545BEVKIT120

Evaluation Kit for the MAX16545B/MAX16545C and MAX16543

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Features and Benefits

  • 12V Nominal Operating Voltage
  • Up to 120A Load Current Capability
  • Resistor-Configurable Overcurrent Threshold
  • Resistor-Configurable Undervoltage Lockout
  • Power-Good Output
  • PMBus Configuration, Control, and Monitoring

Product Details

This evaluation kit (EV kit) serves as a reference for evaluating Maxim’s MAX16545B/MAX16545C integrated protection ICs on a 12V bus. The MAX16545B/MAX16545C are circuit-breaker protection ICs with an integrated low resistance MOSFET and lossless current sense circuitry featuring PMBus control and reporting.

The MAX16545BEVKIT120# is assembled with two MAX16543 follower ICs, increasing the total current capability to 120A. One or both follower ICs can be removed to reduce the capability to 90A or 60A in a smaller footprint.

With appropriate changes to external components, this EV kit can be used to evaluate many of Maxim’s monolithic hot-swap and protection devices, such as the MAX16550, MAX16545, and MAX16551.

Applications

  • Integrated Protection IC on 12V: Circuit Breaker, Hot Swap, Inrush Control
  • Servers, Networking, Storage, Communication Equipment and AC/DC Power Supplies
MAX16545BEVKIT120
Evaluation Kit for the MAX16545B/MAX16545C and MAX16543

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