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Data Sheet | Intel Enpirion Power Solutions: EM2130

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triggered. The EM2130 also monitors the output voltage with two lower thresholds. If the output voltage is

below the under-voltage warning level and above the under-voltage fault level, an output voltage under-

voltage warning is triggered. If the output voltage falls below the fault level, a fault event is generated.

Similar to output over and under voltage protection, the EM2130 monitors the input voltage at VINSEN

continuously with a configurable threshold. If the input voltage exceeds the over voltage threshold or is

below the under voltage threshold, the default response is generated.

Over Temperature Protection (OTP) is based on direct monitoring of the device’s internal temperature. If

the temperature exceeds the OTP threshold, the device will enter a soft-stop mode slowly ramping the

output voltage down until the temperature falls below the default recovery temperature.

The default fault response is zero delay and latch off for most fault conditions. The CTRL pin may be cycled

to clear the latch. Table 13 summarizes the default configurations that have been pre-programmed to the

device.

Table 14: Fault Configuration Overview

Signal

Fault Level

Default Response Type

Delay (ms)

Retries

Output Over-Voltage

Warning

None

Fault

High-impedance

Output Under-Voltage

Warning

None

Fault

High-impedance

Input Over-Voltage

Warning

None

Fault

High-impedance

Input Under-Voltage

Warning

Infinity

Fault

High-impedance

Over-Current

Warning

None

Fault

High-impedance

Internal Over-

Temperature

Warning

Infinity

Fault

Soft Off

FUNCTIONAL DESCRIPTION: ADVANCED CONFIGURATION

All EM2130 modules are delivered with a pre-programmed default configuration, allowing the module to

be powered up without a need to configure the device or even the need for the GUI to be connected.

However, a PMBus version 1.2 compliant interface allows access to an extensive suite of digital

communication and control commands. This includes configuring the EM2130 for optimum performance,

setting various parameters such as output voltage, and monitoring and reporting device behavior including

output voltage, output current, and fault responses.

The device may be reconfigured multiple times without storing the configuration into the non-volatile

memory (NVM). Any configuration changes will be lost upon power-on reset unless specifically stored into

NVM using either STORE_DEFAULT_ALL or STORE_DEFAULT_CODE PMBus commands. Please see Table

16 for more details.

For RVSET and RTUNE configurations, there is no reprogramming permitted.

After writing a new configuration to NVM, the user may still make changes to the device configuration

through the PMBus interface; however, now upon power cycling the device, the stored NVM configuration

will be recalled upon power-up rather than the factory default configuration of the EM2130.

12873

April 10, 2020

Rev I

EVI-EM2COMIF Datasheet(PDF) 25 Page - Intel Corporation

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