MAX5970
Info: : PRODUCTION
searchIcon
cartIcon

MAX5970

0V to 16V, Dual Hot-Swap Controller with 10-Bit Current and Voltage Monitor and 4 LED Drivers

Show More showmore-icon

Industry's First Dual, Hot-Swap Controller Operates Down to 0V and Integrates a Voltage and Current Monitor

Info: : PRODUCTION tooltip
Info: : PRODUCTION tooltip
Part Details
Part Models 2
1ku List Price
price unavailable
Features
  • Two Independent Hot-Swap Controllers Operate from 0V to +16V
  • 10-Bit ADC Monitors Voltage and Current of Each Channel
  • Circular Buffers Store 5ms of Current and Voltage Measurements
  • Two Independent Internal Charge Pumps Generate n-Channel MOSFET Gate Drives
  • Internal 500mA Gate Pulldown Current for Fast Shutdown
  • VariableSpeed/BiLevel™ Circuit-Breaker Protection
  • Independent Precision-Voltage Enable Inputs
  • Alert Output Indicates Fault and Warning Conditions
  • Independent Power-Good Outputs
  • Independent Fault Outputs
  • Four Open-Drain Outputs Sink 25mA to Directly Drive LEDs
  • Programmable LED Flashing Function
  • Autoretry or Latched Fault Management
  • 400kHz I²C Interface
  • Small 6mm x 6mm, 36-Pin TQFN-EP Package
Additional Details
show more Icon

The MAX5970 dual hot-swap controller provides complete protection for systems with two supply voltages from 0V to +16V. The MAX5970 includes four programmable LED outputs. The two hot-swap channels can be configured to operate as independent hot-swap controllers, or as a pair operating together so that both channels shut down if either channel experiences a fault.

The MAX5970 provides two programmable levels of overcurrent circuit-breaker protection: a fast-trip threshold for a fast turn-off, and a lower slow-trip threshold for a delayed turn-off. The maximum overcurrent circuit-breaker threshold range is set independently for each channel with a trilevel logic input IRNG_, or by programming though the I²C interface.

The MAX5970 is an advanced hot-swap controller that monitors voltage and current with an internal 10-bit ADC which is continuously multiplexed to convert the output voltage and current of both hot-swap channels at 10ksps. Each 10-bit sample is stored in an internal circular buffer so that 50 past samples of each signal can be read back through the I²C interface at any time or after a fault condition.

The device includes five user-programmable digital comparators per hot-swap channel to implement overcurrent warning and two levels of overvoltage/undervoltage detection. When any of the measured values violates the programmable limits, an external active-low ALERT output is asserted. In addition to the active-low ALERT signal, the MAX5970 can be programmed to deassert the power-good signal and/or turn off the external MOSFET.

The MAX5970 features four I/Os that can be independently configured as general-purpose inputs/outputs (GPIOs) or as open-drain LED drivers with programmable blinking. These four I/Os can be configured for any mix of LED driver or GPIO function.

The MAX5970 is available in a 36-pin thin QFN-EP package and operates over the -40°C to +85°C extended temperature range.

Applications

  • Blade Servers
  • Disk Drives/DASD/Storage Systems
  • Single PCI Express® Hot-Plug Slot
  • Soft-Switch for ASICs, FPGAs, and Microcontrollers with Independent Core and I/O Voltages
Part Models 2
1ku List Price
price unavailable

close icon
Documentation

Documentation

Part Model Pin/Package Drawing Documentation CAD Symbols, Footprints, and 3D Models
MAX5970ETX+
  • HTML
  • HTML
MAX5970ETX+T
  • HTML
  • HTML
Software & Part Ecosystem

Software & Part Ecosystem

Evaluation Kit

Evaluation Kits 1

MAX5970EVKIT

Evaluation Kit for the MAX5970

zoom

MAX5970EVKIT

Evaluation Kit for the MAX5970

Evaluation Kit for the MAX5970

Features and Benefits

  • Safely Hot Swaps Two Independent 0 to 16V Power Supplies After Power-Up
  • Windows 2000-, Windows XP-, and Windows Vista (32-Bit)-Compatible Software
  • On-Board Microcontroller to Generate I²C Commands
  • Easy-to-Use, Menu-Driven Software
  • USB-PC Connection (Cable Included)

Product Detail

The MAX5970 evaluation kit (EV kit) is an assembled and tested PCB used to evaluate the MAX5970 dual hot-swap controller, which provides protection for systems with two supply voltages between 0 and 16V. The on-board microcontroller, which is connected to the PC through the universal serial bus (USB) port, acts as the I²C master.

The EV kit also includes Windows® 2000-, Windows XP®-, and Windows Vista®-compatible software that provides a simple user interface for exercising the MAX5970 features. The program is menu-driven and offers a graphical user interface (GUI) complete with control buttons and status displays. The EV kit comes with the MAX5970ETX+ installed.

Applications

  • Blade Servers
  • Disk Drives/DASD/Storage Systems
  • Single PCI Express® Hot-Plug Slot
  • Soft-Switch for ASICs, FPGAs, and Microcontrollers with Independent Core and I/O Voltages

Recently Viewed